yunqingmoswu commented on code in PR #4548:
URL: https://github.com/apache/incubator-inlong/pull/4548#discussion_r890850126


##########
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/protocol/constant/DLCConstant.java:
##########
@@ -0,0 +1,50 @@
+/*
+ *  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.inlong.sort.protocol.constant;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+public class DLCConstant {

Review Comment:
   Please add some java comments.



##########
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/protocol/node/load/DLCIcebergLoadNode.java:
##########
@@ -0,0 +1,134 @@
+/*
+ *  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.inlong.sort.protocol.node.load;
+
+import com.google.common.base.Preconditions;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonTypeName;
+import org.apache.inlong.sort.protocol.FieldInfo;
+import org.apache.inlong.sort.protocol.constant.DLCConstant;
+import org.apache.inlong.sort.protocol.constant.IcebergConstant.CatalogType;
+import org.apache.inlong.sort.protocol.enums.FilterStrategy;
+import org.apache.inlong.sort.protocol.node.LoadNode;
+import org.apache.inlong.sort.protocol.transformation.FieldRelation;
+import org.apache.inlong.sort.protocol.transformation.FilterFunction;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.io.Serializable;
+import java.util.List;
+import java.util.Map;
+
+@JsonTypeName("dlcIcebergLoad")
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = true)
+public class DLCIcebergLoadNode extends LoadNode implements Serializable {

Review Comment:
   Please add some java comments.



##########
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/protocol/node/load/DLCIcebergLoadNode.java:
##########
@@ -0,0 +1,134 @@
+/*
+ *  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.inlong.sort.protocol.node.load;
+
+import com.google.common.base.Preconditions;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonTypeName;
+import org.apache.inlong.sort.protocol.FieldInfo;
+import org.apache.inlong.sort.protocol.constant.DLCConstant;
+import org.apache.inlong.sort.protocol.constant.IcebergConstant.CatalogType;
+import org.apache.inlong.sort.protocol.enums.FilterStrategy;
+import org.apache.inlong.sort.protocol.node.LoadNode;
+import org.apache.inlong.sort.protocol.transformation.FieldRelation;
+import org.apache.inlong.sort.protocol.transformation.FilterFunction;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.io.Serializable;
+import java.util.List;
+import java.util.Map;
+
+@JsonTypeName("dlcIcebergLoad")
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = true)
+public class DLCIcebergLoadNode extends LoadNode implements Serializable {
+
+    private static final long serialVersionUID = -1L;
+
+    @JsonProperty("tableName")
+    @Nonnull
+    private String tableName;
+
+    @JsonProperty("dbName")
+    @Nonnull
+    private String dbName;

Review Comment:
   Maybe it is better to call `database`?



##########
inlong-sort/sort-common/src/main/java/org/apache/inlong/sort/protocol/node/load/DLCIcebergLoadNode.java:
##########
@@ -0,0 +1,134 @@
+/*
+ *  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.inlong.sort.protocol.node.load;
+
+import com.google.common.base.Preconditions;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.NoArgsConstructor;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
+import 
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonTypeName;
+import org.apache.inlong.sort.protocol.FieldInfo;
+import org.apache.inlong.sort.protocol.constant.DLCConstant;
+import org.apache.inlong.sort.protocol.constant.IcebergConstant.CatalogType;
+import org.apache.inlong.sort.protocol.enums.FilterStrategy;
+import org.apache.inlong.sort.protocol.node.LoadNode;
+import org.apache.inlong.sort.protocol.transformation.FieldRelation;
+import org.apache.inlong.sort.protocol.transformation.FilterFunction;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import java.io.Serializable;
+import java.util.List;
+import java.util.Map;
+
+@JsonTypeName("dlcIcebergLoad")
+@Data
+@NoArgsConstructor
+@EqualsAndHashCode(callSuper = true)
+public class DLCIcebergLoadNode extends LoadNode implements Serializable {
+
+    private static final long serialVersionUID = -1L;
+
+    @JsonProperty("tableName")
+    @Nonnull
+    private String tableName;
+
+    @JsonProperty("dbName")
+    @Nonnull
+    private String dbName;
+
+    @JsonProperty("primaryKey")
+    private String primaryKey;
+
+    @JsonProperty("uri")
+    private String uri;
+
+    @JsonProperty("warehouse")
+    private String warehouse;
+
+    @JsonCreator
+    public DLCIcebergLoadNode(@JsonProperty("id") String id,
+            @JsonProperty("name") String name,
+            @JsonProperty("fields") List<FieldInfo> fields,
+            @JsonProperty("fieldRelationShips") List<FieldRelation> 
fieldRelationShips,
+            @JsonProperty("filters") List<FilterFunction> filters,
+            @JsonProperty("filterStrategy") FilterStrategy filterStrategy,
+            @Nullable @JsonProperty("sinkParallelism") Integer sinkParallelism,
+            @JsonProperty("properties") Map<String, String> properties,
+            @Nonnull @JsonProperty("dbName") String dbName,
+            @Nonnull @JsonProperty("tableName") String tableName,
+            @JsonProperty("primaryKey") String primaryKey,
+            @JsonProperty("uri") String uri,
+            @JsonProperty("warehouse") String warehouse) {
+        super(id, name, fields, fieldRelationShips, filters, filterStrategy, 
sinkParallelism, properties);
+        this.tableName = Preconditions.checkNotNull(tableName, "table name is 
null");
+        this.dbName = Preconditions.checkNotNull(dbName, "db name is null");
+        this.primaryKey = primaryKey;
+        this.uri = uri == null ? DLCConstant.DLC_ENDPOINT : uri;
+        this.warehouse = warehouse;
+        validateAuth(properties);
+    }
+
+    @Override
+    public Map<String, String> tableOptions() {
+        Map<String, String> options = super.tableOptions();
+        options.put("connector", "iceberg");
+        options.put("catalog-database", dbName);

Review Comment:
   Maybe it is better to put these constant param  to the DLCConstant?



##########
inlong-sort/sort-common/src/test/java/org/apache/inlong/sort/protocol/node/load/DLCIcebergLoadNodeTest.java:
##########
@@ -0,0 +1,58 @@
+/*
+ *  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.inlong.sort.protocol.node.load;
+
+import org.apache.inlong.sort.SerializeBaseTest;
+import org.apache.inlong.sort.formats.common.StringFormatInfo;
+import org.apache.inlong.sort.protocol.FieldInfo;
+import org.apache.inlong.sort.protocol.constant.DLCConstant;
+import org.apache.inlong.sort.protocol.transformation.FieldRelation;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+public class DLCIcebergLoadNodeTest extends 
SerializeBaseTest<DLCIcebergLoadNode> {

Review Comment:
   Please add some java comments.



##########
inlong-sort/sort-connectors/iceberg-dlc/pom.xml:
##########
@@ -0,0 +1,139 @@
+<?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>sort-connectors</artifactId>
+        <groupId>org.apache.inlong</groupId>
+        <version>1.2.0-incubating-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>sort-connector-iceberg-dlc</artifactId>
+    <name>Apache InLong - Sort-connector-iceberg-dlc</name>
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.qcloud.cos</groupId>
+            <artifactId>hadoop-cos</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.qcloud</groupId>
+            <artifactId>cos_api-bundle</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.qcloud</groupId>
+            <artifactId>dlc-data-catalog-metastore-client</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.apache.hive</groupId>
+                    <artifactId>hive-metastore</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.iceberg</groupId>
+            <artifactId>iceberg-flink-runtime-1.13</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.apache.hive</groupId>
+            <artifactId>hive-exec</artifactId>
+            <version>${dlc.hive.version}</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>log4j</groupId>
+                    <artifactId>log4j</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.slf4j</groupId>
+                    <artifactId>slf4j-log4j12</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.apache.calcite.avatica</groupId>
+                    <artifactId>avatica</artifactId>
+                </exclusion>
+                <exclusion>
+                    <groupId>org.pentaho</groupId>
+                    <artifactId>pentaho-aggdesigner-algorithm</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+
+    <repositories>

Review Comment:
   Make sure it can be accessed in the public net?



##########
inlong-sort/sort-connectors/iceberg-dlc/src/main/java/org/apache/inlong/sort/iceberg/catalog/hybris/CachedClientPool.java:
##########
@@ -0,0 +1,86 @@
+/*
+ * 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.inlong.sort.iceberg.catalog.hybris;
+
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.metastore.IMetaStoreClient;
+import org.apache.iceberg.CatalogProperties;
+import org.apache.iceberg.ClientPool;
+import 
org.apache.iceberg.relocated.com.google.common.annotations.VisibleForTesting;
+import org.apache.iceberg.shaded.com.github.benmanes.caffeine.cache.Cache;
+import org.apache.iceberg.shaded.com.github.benmanes.caffeine.cache.Caffeine;
+import org.apache.iceberg.util.PropertyUtil;
+import org.apache.thrift.TException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class CachedClientPool implements ClientPool<IMetaStoreClient, 
TException> {

Review Comment:
   Please add some java comments.



##########
inlong-sort/sort-connectors/iceberg-dlc/src/main/java/org/apache/inlong/sort/iceberg/catalog/hybris/DLCWrappedHybrisClientPool.java:
##########
@@ -0,0 +1,103 @@
+/*
+ * 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.inlong.sort.iceberg.catalog.hybris;
+
+import com.qcloud.dlc.metastore.DLCDataCatalogMetastoreClient;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.hive.conf.HiveConf;
+import org.apache.hadoop.hive.metastore.IMetaStoreClient;
+import org.apache.hadoop.hive.metastore.api.MetaException;
+import org.apache.iceberg.ClientPoolImpl;
+import org.apache.iceberg.common.DynConstructors;
+import org.apache.iceberg.hive.RuntimeMetaException;
+import 
org.apache.iceberg.relocated.com.google.common.annotations.VisibleForTesting;
+import org.apache.thrift.TException;
+import org.apache.thrift.transport.TTransportException;
+
+public class DLCWrappedHybrisClientPool extends 
ClientPoolImpl<IMetaStoreClient, TException> {

Review Comment:
   Please add some java comments.



##########
inlong-sort/sort-connectors/pom.xml:
##########
@@ -40,7 +40,9 @@
         <module>kafka</module>
         <module>jdbc</module>
         <module>pulsar</module>
+
         <module>iceberg</module>
+        <module>iceberg-dlc</module>

Review Comment:
   Maybe it is better to call dlc?



##########
inlong-sort/sort-core/src/test/java/org/apache/inlong/sort/parser/DLCIcebergSqlParseTest.java:
##########
@@ -0,0 +1,141 @@
+/*
+ *  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.inlong.sort.parser;
+
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.table.api.EnvironmentSettings;
+import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
+import org.apache.inlong.sort.formats.common.IntFormatInfo;
+import org.apache.inlong.sort.formats.common.StringFormatInfo;
+import org.apache.inlong.sort.parser.impl.FlinkSqlParser;
+import org.apache.inlong.sort.parser.result.FlinkSqlParseResult;
+import org.apache.inlong.sort.protocol.FieldInfo;
+import org.apache.inlong.sort.protocol.GroupInfo;
+import org.apache.inlong.sort.protocol.StreamInfo;
+import org.apache.inlong.sort.protocol.constant.DLCConstant;
+import org.apache.inlong.sort.protocol.node.Node;
+import org.apache.inlong.sort.protocol.node.extract.MySqlExtractNode;
+import org.apache.inlong.sort.protocol.node.load.DLCIcebergLoadNode;
+import org.apache.inlong.sort.protocol.transformation.FieldRelation;
+import org.apache.inlong.sort.protocol.transformation.relation.NodeRelation;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class DLCIcebergSqlParseTest {

Review Comment:
   Please add some java comments.



##########
inlong-sort/sort-core/src/test/java/org/apache/inlong/sort/parser/DLCIcebergSqlParseTest.java:
##########
@@ -0,0 +1,141 @@
+/*
+ *  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.inlong.sort.parser;
+
+import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
+import org.apache.flink.table.api.EnvironmentSettings;
+import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;
+import org.apache.inlong.sort.formats.common.IntFormatInfo;
+import org.apache.inlong.sort.formats.common.StringFormatInfo;
+import org.apache.inlong.sort.parser.impl.FlinkSqlParser;
+import org.apache.inlong.sort.parser.result.FlinkSqlParseResult;
+import org.apache.inlong.sort.protocol.FieldInfo;
+import org.apache.inlong.sort.protocol.GroupInfo;
+import org.apache.inlong.sort.protocol.StreamInfo;
+import org.apache.inlong.sort.protocol.constant.DLCConstant;
+import org.apache.inlong.sort.protocol.node.Node;
+import org.apache.inlong.sort.protocol.node.extract.MySqlExtractNode;
+import org.apache.inlong.sort.protocol.node.load.DLCIcebergLoadNode;
+import org.apache.inlong.sort.protocol.transformation.FieldRelation;
+import org.apache.inlong.sort.protocol.transformation.relation.NodeRelation;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class DLCIcebergSqlParseTest {
+    private MySqlExtractNode buildMySQLExtractNode(String id) {
+        List<FieldInfo> fields = Arrays.asList(
+                new FieldInfo("id", new IntFormatInfo()),
+                new FieldInfo("name", new StringFormatInfo()));
+        // if you hope hive load mode of append, please add this config
+        Map<String, String> map = new HashMap<>();
+        return new MySqlExtractNode(id,
+                "mysql_input",
+                fields,
+                null,
+                map,
+                "id",
+                Collections.singletonList("test"),
+                "localhost",
+                "root",
+                "123456",
+                "inlong",
+                3306,
+                null,
+                null,
+                null);
+    }
+
+
+    private DLCIcebergLoadNode buildDLCLoadNode() {
+        List<FieldInfo> fields = Arrays.asList(
+                new FieldInfo("id", new IntFormatInfo()),
+                new FieldInfo("name", new StringFormatInfo()));
+        List<FieldRelation> relations = Arrays
+                .asList(new FieldRelation(new FieldInfo("id", new 
IntFormatInfo()),
+                                new FieldInfo("id", new IntFormatInfo())),
+                        new FieldRelation(new FieldInfo("name", new 
StringFormatInfo()),
+                                new FieldInfo("name", new 
StringFormatInfo())));
+
+        // set HIVE_CONF_DIR,or set uri and warehouse
+        Map<String, String> properties = new HashMap<>();
+        properties.put(DLCConstant.DLC_REGION, "ap-beijing");
+        properties.put(DLCConstant.DLC_SECRET_ID, "XXXXXXXXXXX");
+        properties.put(DLCConstant.DLC_SECRET_KEY, "XXXXXXXXXXX");
+
+        properties.put(DLCConstant.FS_COS_REGION, "ap-beijing");
+        properties.put(DLCConstant.FS_COS_SECRET_ID, "XXXXXXXXXXX");
+        properties.put(DLCConstant.FS_COS_SECRET_KEY, "XXXXXXXXXXX");
+        return new DLCIcebergLoadNode(
+                "iceberg",
+                "iceberg_output",
+                fields,
+                relations,
+                null,
+                null,
+                null,
+                properties,
+                "inlong",
+                "dlc_output",
+                "id",
+                null,
+                "/hive/warehouse");
+    }
+
+    /**
+     * build node relation
+     *
+     * @param inputs  extract node
+     * @param outputs load node
+     * @return node relation
+     */
+    private NodeRelation buildNodeRelation(List<Node> inputs, List<Node> 
outputs) {
+        List<String> inputIds = 
inputs.stream().map(Node::getId).collect(Collectors.toList());
+        List<String> outputIds = 
outputs.stream().map(Node::getId).collect(Collectors.toList());
+        return new NodeRelation(inputIds, outputIds);
+    }
+
+    @Test
+    public void testDLCIceberg() throws Exception {

Review Comment:
   Please add some java comments.



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