turcsanyip commented on code in PR #6368:
URL: https://github.com/apache/nifi/pull/6368#discussion_r965057634


##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-services/src/main/java/org/apache/nifi/services/iceberg/HadoopCatalogService.java:
##########
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.services.iceberg;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.hadoop.HadoopCatalog;
+import org.apache.nifi.annotation.lifecycle.OnEnabled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.controller.AbstractControllerService;
+import org.apache.nifi.controller.ConfigurationContext;
+import org.apache.nifi.processor.util.StandardValidators;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * Catalog service implementation that can use HDFS or similar file systems 
that support atomic rename.
+ */
+public class HadoopCatalogService extends AbstractControllerService implements 
IcebergCatalogService {
+
+    static final PropertyDescriptor WAREHOUSE_PATH = new 
PropertyDescriptor.Builder()
+            .name("warehouse-path")
+            .displayName("Warehouse path")

Review Comment:
   Please use title case:
   ```suggestion
               .displayName("Warehouse Path")
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-services-api/src/main/java/org/apache/nifi/services/iceberg/IcebergCatalogService.java:
##########
@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.services.iceberg;
+
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.controller.ControllerService;
+
+@Tags({"iceberg", "catalog", "service"})
+@CapabilityDescription("Provides a basic connector to Iceberg catalog 
services.")

Review Comment:
   These annotations must be specified on the CS implementation class, not on 
the CS interface.



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/src/main/java/org/apache/nifi/processors/iceberg/PutIceberg.java:
##########
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.iceberg;
+
+import org.apache.iceberg.BaseTable;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.catalog.Namespace;
+import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.io.TaskWriter;
+import org.apache.iceberg.io.WriteResult;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.context.PropertyContext;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.MalformedRecordException;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.services.iceberg.IcebergCatalogService;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Tags({"iceberg", "put", "table", "store", "record", "parse", "orc", 
"parquet", "avro"})
+@CapabilityDescription("This processor uses Iceberg API to parse and load 
records into Iceberg tables. The processor supports only V2 table format." +
+        "The incoming data sets are parsed with Record Reader Controller 
Service and ingested into an Iceberg table using the configured catalog service 
and provided table information." +
+        "It is important that the incoming records and the Iceberg table must 
have matching schemas and the target Iceberg table should already exist. " +
+        "The file format of the written data files are defined in the 
'write.format.default' table property, if it is not provided then parquet 
format will be used." +
+        "To avoid 'small file problem' it is recommended pre-appending a 
MergeRecord processor.")

Review Comment:
   Typo: missing spaces where the string is concatenated



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock-record-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-kerberos-user-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   Duplicated dependency. As far as I can see, `nifi-avro-record-utils` is 
needed only for tests so this occurrence should be deleted.



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/src/main/java/org/apache/nifi/processors/iceberg/NifiRecordWrapper.java:
##########
@@ -0,0 +1,117 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.iceberg;
+
+import org.apache.iceberg.StructLike;
+import org.apache.nifi.serialization.record.DataType;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.serialization.record.RecordField;
+import org.apache.nifi.serialization.record.RecordFieldType;
+import org.apache.nifi.serialization.record.RecordSchema;
+import org.apache.nifi.serialization.record.type.RecordDataType;
+import org.apache.nifi.serialization.record.util.DataTypeUtils;
+
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.time.Duration;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.time.temporal.ChronoUnit;
+import java.util.Date;
+import java.util.function.BiFunction;
+import java.util.stream.Stream;
+
+/**
+ * Class to wrap and adapt {@link Record} to Iceberg {@link StructLike} for 
partition handling usage like {@link
+ * org.apache.iceberg.PartitionKey#partition(StructLike)}
+ */
+public class NifiRecordWrapper implements StructLike {

Review Comment:
   ```suggestion
   public class NiFiRecordWrapper implements StructLike {
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   `*-services-api` dependencies typically come from the parent 
`*-services-api-nar` and should be `provided` in the processor module. This one 
is declared as `provided` in `nifi-nar-bundles` pom so the scope should be 
omitted here.
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-record-serialization-service-api</artifactId>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   `compile` is the default scope and does not need to be declared explicitly.
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-utils</artifactId>
               <version>1.18.0-SNAPSHOT</version>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock-record-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>

Review Comment:
   It does not seem to be needed at compile time and it will be provided in 
nifi's `lib` directory at runtime. So it can be removed.



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock-record-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-kerberos-user-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>

Review Comment:
   Could you please separate prod and test dependencies into two groups? First 
prod ones, then tests.



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/src/main/java/org/apache/nifi/processors/iceberg/PutIceberg.java:
##########
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.iceberg;
+
+import org.apache.iceberg.BaseTable;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.catalog.Namespace;
+import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.io.TaskWriter;
+import org.apache.iceberg.io.WriteResult;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.context.PropertyContext;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.MalformedRecordException;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.services.iceberg.IcebergCatalogService;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Tags({"iceberg", "put", "table", "store", "record", "parse", "orc", 
"parquet", "avro"})
+@CapabilityDescription("This processor uses Iceberg API to parse and load 
records into Iceberg tables. The processor supports only V2 table format." +
+        "The incoming data sets are parsed with Record Reader Controller 
Service and ingested into an Iceberg table using the configured catalog service 
and provided table information." +
+        "It is important that the incoming records and the Iceberg table must 
have matching schemas and the target Iceberg table should already exist. " +
+        "The file format of the written data files are defined in the 
'write.format.default' table property, if it is not provided then parquet 
format will be used." +
+        "To avoid 'small file problem' it is recommended pre-appending a 
MergeRecord processor.")
+@WritesAttributes({
+        @WritesAttribute(attribute = "iceberg.record.count", description = 
"The number of records in the FlowFile")
+})
+public class PutIceberg extends KerberosAwareBaseProcessor {
+
+    public static final String ICEBERG_RECORD_COUNT = "iceberg.record.count";
+
+    static final PropertyDescriptor RECORD_READER = new 
PropertyDescriptor.Builder()
+            .name("record-reader")
+            .displayName("Record Reader")
+            .description("Specifies the Controller Service to use for parsing 
incoming data and determining the data's schema.")
+            .identifiesControllerService(RecordReaderFactory.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG = new PropertyDescriptor.Builder()
+            .name("catalog-service")
+            .displayName("Catalog Service")
+            .description("Specifies the Controller Service to use for handling 
references to table’s metadata files.")
+            .identifiesControllerService(IcebergCatalogService.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG_NAMESPACE = new 
PropertyDescriptor.Builder()
+            .name("catalog-namespace")
+            .displayName("Catalog namespace")

Review Comment:
   ```suggestion
               .displayName("Catalog Namespace")
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   `nifi-api` is always provided in nifi's `lib` directory. The `provided` 
scope declared in `nifi-nar-bundles` pom (`dependencyManagement` section) in 
and it should not be changed:
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-api</artifactId>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/src/main/java/org/apache/nifi/processors/iceberg/PutIceberg.java:
##########
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.iceberg;
+
+import org.apache.iceberg.BaseTable;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.catalog.Namespace;
+import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.io.TaskWriter;
+import org.apache.iceberg.io.WriteResult;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.context.PropertyContext;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.MalformedRecordException;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.services.iceberg.IcebergCatalogService;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Tags({"iceberg", "put", "table", "store", "record", "parse", "orc", 
"parquet", "avro"})
+@CapabilityDescription("This processor uses Iceberg API to parse and load 
records into Iceberg tables. The processor supports only V2 table format." +
+        "The incoming data sets are parsed with Record Reader Controller 
Service and ingested into an Iceberg table using the configured catalog service 
and provided table information." +
+        "It is important that the incoming records and the Iceberg table must 
have matching schemas and the target Iceberg table should already exist. " +
+        "The file format of the written data files are defined in the 
'write.format.default' table property, if it is not provided then parquet 
format will be used." +
+        "To avoid 'small file problem' it is recommended pre-appending a 
MergeRecord processor.")
+@WritesAttributes({
+        @WritesAttribute(attribute = "iceberg.record.count", description = 
"The number of records in the FlowFile")
+})
+public class PutIceberg extends KerberosAwareBaseProcessor {
+
+    public static final String ICEBERG_RECORD_COUNT = "iceberg.record.count";
+
+    static final PropertyDescriptor RECORD_READER = new 
PropertyDescriptor.Builder()
+            .name("record-reader")
+            .displayName("Record Reader")
+            .description("Specifies the Controller Service to use for parsing 
incoming data and determining the data's schema.")
+            .identifiesControllerService(RecordReaderFactory.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG = new PropertyDescriptor.Builder()
+            .name("catalog-service")
+            .displayName("Catalog Service")
+            .description("Specifies the Controller Service to use for handling 
references to table’s metadata files.")
+            .identifiesControllerService(IcebergCatalogService.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG_NAMESPACE = new 
PropertyDescriptor.Builder()
+            .name("catalog-namespace")
+            .displayName("Catalog namespace")
+            .description("The namespace of the catalog.")
+            .required(true)
+            .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+            .build();
+
+    static final PropertyDescriptor TABLE_NAME = new 
PropertyDescriptor.Builder()
+            .name("table-name")
+            .displayName("Iceberg table name")

Review Comment:
   Iceberg prefix is not needed:
   ```suggestion
               .displayName("Table Name")
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   `nifi-record` is also `provided` (declared in `nifi-nar-bundles` pom)
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-record</artifactId>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock-record-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-kerberos-user-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-kerberos-user-service-api</artifactId>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock-record-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-kerberos-user-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos-api</artifactId>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-security-kerberos-api</artifactId>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-avro-record-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock-record-utils</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-mock</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>jcl-over-slf4j</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-kerberos-user-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-security-kerberos</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   `compile` is the default scope and does not need to be declared explicitly.
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-security-kerberos</artifactId>
               <version>1.18.0-SNAPSHOT</version>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/src/main/java/org/apache/nifi/processors/iceberg/PutIceberg.java:
##########
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.iceberg;
+
+import org.apache.iceberg.BaseTable;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.catalog.Namespace;
+import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.io.TaskWriter;
+import org.apache.iceberg.io.WriteResult;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.context.PropertyContext;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.MalformedRecordException;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.services.iceberg.IcebergCatalogService;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Tags({"iceberg", "put", "table", "store", "record", "parse", "orc", 
"parquet", "avro"})
+@CapabilityDescription("This processor uses Iceberg API to parse and load 
records into Iceberg tables. The processor supports only V2 table format." +
+        "The incoming data sets are parsed with Record Reader Controller 
Service and ingested into an Iceberg table using the configured catalog service 
and provided table information." +
+        "It is important that the incoming records and the Iceberg table must 
have matching schemas and the target Iceberg table should already exist. " +
+        "The file format of the written data files are defined in the 
'write.format.default' table property, if it is not provided then parquet 
format will be used." +
+        "To avoid 'small file problem' it is recommended pre-appending a 
MergeRecord processor.")
+@WritesAttributes({
+        @WritesAttribute(attribute = "iceberg.record.count", description = 
"The number of records in the FlowFile")
+})
+public class PutIceberg extends KerberosAwareBaseProcessor {
+
+    public static final String ICEBERG_RECORD_COUNT = "iceberg.record.count";
+
+    static final PropertyDescriptor RECORD_READER = new 
PropertyDescriptor.Builder()
+            .name("record-reader")
+            .displayName("Record Reader")
+            .description("Specifies the Controller Service to use for parsing 
incoming data and determining the data's schema.")
+            .identifiesControllerService(RecordReaderFactory.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG = new PropertyDescriptor.Builder()
+            .name("catalog-service")
+            .displayName("Catalog Service")
+            .description("Specifies the Controller Service to use for handling 
references to table’s metadata files.")
+            .identifiesControllerService(IcebergCatalogService.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG_NAMESPACE = new 
PropertyDescriptor.Builder()
+            .name("catalog-namespace")
+            .displayName("Catalog namespace")
+            .description("The namespace of the catalog.")
+            .required(true)
+            .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+            .build();
+
+    static final PropertyDescriptor TABLE_NAME = new 
PropertyDescriptor.Builder()
+            .name("table-name")
+            .displayName("Iceberg table name")
+            .description("The name of the Iceberg table.")
+            .required(true)
+            .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+            .build();
+
+    public static final Relationship REL_SUCCESS = new Relationship.Builder()
+            .name("success")
+            .description("A FlowFile is routed to this relationship after the 
data ingestion was successful.")
+            .build();
+
+    public static final Relationship REL_FAILURE = new Relationship.Builder()
+            .name("failure")
+            .description("A FlowFile is routed to this relationship if the 
data ingestion failed and retrying the operation will also fail, "
+                    + "such as an invalid data or schema.")
+            .build();
+
+    private static final List<PropertyDescriptor> PROPERTIES = 
Collections.unmodifiableList(Arrays.asList(
+            RECORD_READER,
+            CATALOG,
+            TABLE_NAME,
+            CATALOG_NAMESPACE,

Review Comment:
   I'd suggest the following order:
   - CATALOG
   - CATALOG_NAMESPACE
   - TABLE_NAME
   
   If I understand it correctly, the namespace belongs to the catalog and is 
used as a prefix for the table name.



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/pom.xml:
##########
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements. See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License. You may obtain a copy of the License at
+  http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0";
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd";>
+    <parent>
+        <artifactId>nifi-iceberg-bundle</artifactId>
+        <groupId>org.apache.nifi</groupId>
+        <version>1.18.0-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>nifi-iceberg-processors</artifactId>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-core</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-data</artifactId>
+            <version>${iceberg.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>3.1.3</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>commons-logging</groupId>
+                    <artifactId>commons-logging</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-web</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-1.2-api</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.logging.log4j</groupId>
+                    <artifactId>log4j-slf4j-impl</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-llap-tez</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-core</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite</groupId>
+                    <artifactId>calcite-druid</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-utils</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-record-serialization-service-api</artifactId>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.nifi</groupId>
+            <artifactId>nifi-iceberg-services-api</artifactId>
+            <version>1.18.0-SNAPSHOT</version>
+            <scope>compile</scope>
+        </dependency>

Review Comment:
   ```suggestion
           <dependency>
               <groupId>org.apache.nifi</groupId>
               <artifactId>nifi-iceberg-services-api</artifactId>
               <version>1.18.0-SNAPSHOT</version>
               <scope>provided</scope>
           </dependency>
   ```



##########
nifi-nar-bundles/nifi-iceberg-bundle/nifi-iceberg-processors/src/main/java/org/apache/nifi/processors/iceberg/PutIceberg.java:
##########
@@ -0,0 +1,224 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.nifi.processors.iceberg;
+
+import org.apache.iceberg.BaseTable;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.catalog.Namespace;
+import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.io.TaskWriter;
+import org.apache.iceberg.io.WriteResult;
+import org.apache.nifi.annotation.behavior.WritesAttribute;
+import org.apache.nifi.annotation.behavior.WritesAttributes;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.context.PropertyContext;
+import org.apache.nifi.flowfile.FlowFile;
+import org.apache.nifi.processor.ProcessContext;
+import org.apache.nifi.processor.ProcessSession;
+import org.apache.nifi.processor.Relationship;
+import org.apache.nifi.processor.exception.ProcessException;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.schema.access.SchemaNotFoundException;
+import org.apache.nifi.serialization.MalformedRecordException;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.services.iceberg.IcebergCatalogService;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+@Tags({"iceberg", "put", "table", "store", "record", "parse", "orc", 
"parquet", "avro"})
+@CapabilityDescription("This processor uses Iceberg API to parse and load 
records into Iceberg tables. The processor supports only V2 table format." +
+        "The incoming data sets are parsed with Record Reader Controller 
Service and ingested into an Iceberg table using the configured catalog service 
and provided table information." +
+        "It is important that the incoming records and the Iceberg table must 
have matching schemas and the target Iceberg table should already exist. " +
+        "The file format of the written data files are defined in the 
'write.format.default' table property, if it is not provided then parquet 
format will be used." +
+        "To avoid 'small file problem' it is recommended pre-appending a 
MergeRecord processor.")
+@WritesAttributes({
+        @WritesAttribute(attribute = "iceberg.record.count", description = 
"The number of records in the FlowFile")
+})
+public class PutIceberg extends KerberosAwareBaseProcessor {
+
+    public static final String ICEBERG_RECORD_COUNT = "iceberg.record.count";
+
+    static final PropertyDescriptor RECORD_READER = new 
PropertyDescriptor.Builder()
+            .name("record-reader")
+            .displayName("Record Reader")
+            .description("Specifies the Controller Service to use for parsing 
incoming data and determining the data's schema.")
+            .identifiesControllerService(RecordReaderFactory.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG = new PropertyDescriptor.Builder()
+            .name("catalog-service")
+            .displayName("Catalog Service")
+            .description("Specifies the Controller Service to use for handling 
references to table’s metadata files.")
+            .identifiesControllerService(IcebergCatalogService.class)
+            .required(true)
+            .build();
+
+    static final PropertyDescriptor CATALOG_NAMESPACE = new 
PropertyDescriptor.Builder()
+            .name("catalog-namespace")
+            .displayName("Catalog namespace")
+            .description("The namespace of the catalog.")
+            .required(true)
+            .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+            .build();
+
+    static final PropertyDescriptor TABLE_NAME = new 
PropertyDescriptor.Builder()
+            .name("table-name")
+            .displayName("Iceberg table name")
+            .description("The name of the Iceberg table.")
+            .required(true)
+            .addValidator(StandardValidators.NON_BLANK_VALIDATOR)
+            .build();
+
+    public static final Relationship REL_SUCCESS = new Relationship.Builder()
+            .name("success")
+            .description("A FlowFile is routed to this relationship after the 
data ingestion was successful.")
+            .build();
+
+    public static final Relationship REL_FAILURE = new Relationship.Builder()
+            .name("failure")
+            .description("A FlowFile is routed to this relationship if the 
data ingestion failed and retrying the operation will also fail, "
+                    + "such as an invalid data or schema.")
+            .build();
+
+    private static final List<PropertyDescriptor> PROPERTIES = 
Collections.unmodifiableList(Arrays.asList(
+            RECORD_READER,
+            CATALOG,
+            TABLE_NAME,
+            CATALOG_NAMESPACE,
+            KERBEROS_USER_SERVICE
+    ));
+
+    public static final Set<Relationship> RELATIONSHIPS = 
Collections.unmodifiableSet(new HashSet<>(Arrays.asList(
+            REL_SUCCESS,
+            REL_FAILURE
+    )));
+
+    @Override
+    protected Collection<ValidationResult> customValidate(ValidationContext 
validationContext) {
+        Collection<ValidationResult> validationResults = new HashSet<>();
+        if (validationContext.getProperty(TABLE_NAME).isSet() && 
validationContext.getProperty(CATALOG_NAMESPACE).isSet() && 
validationContext.getProperty(CATALOG).isSet()) {
+            final Table table = initializeTable(validationContext);

Review Comment:
   This validation logic involves some client-server communication and it would 
rather fit into `VerifiableProcessor.verify()` method.
   Pls. see more on "validation" vs "verification" in `VerifiableProcessor`'s 
[documentation](https://github.com/apache/nifi/blob/5b565679dfca1d1fb1134a9a3c819c11587fef40/nifi-api/src/main/java/org/apache/nifi/processor/VerifiableProcessor.java#L26-L63).



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