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https://issues.apache.org/jira/browse/NIFI-5510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16609351#comment-16609351
]
ASF GitHub Bot commented on NIFI-5510:
--------------------------------------
Github user MikeThomsen commented on a diff in the pull request:
https://github.com/apache/nifi/pull/2992#discussion_r216353050
--- Diff:
nifi-nar-bundles/nifi-cassandra-bundle/nifi-cassandra-processors/src/main/java/org/apache/nifi/processors/cassandra/PutCassandraRecord.java
---
@@ -0,0 +1,239 @@
+/*
+ * 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.cassandra;
+
+import com.datastax.driver.core.BatchStatement;
+import com.datastax.driver.core.ConsistencyLevel;
+import com.datastax.driver.core.Session;
+import com.datastax.driver.core.exceptions.AuthenticationException;
+import com.datastax.driver.core.exceptions.NoHostAvailableException;
+import com.datastax.driver.core.querybuilder.Insert;
+import com.datastax.driver.core.querybuilder.QueryBuilder;
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.annotation.lifecycle.OnShutdown;
+import org.apache.nifi.annotation.lifecycle.OnUnscheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.expression.ExpressionLanguageScope;
+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.serialization.RecordReaderFactory;
+import org.apache.nifi.serialization.RecordReader;
+import org.apache.nifi.serialization.record.Record;
+import org.apache.nifi.serialization.record.RecordFieldType;
+import org.apache.nifi.serialization.record.RecordSchema;
+import org.apache.nifi.serialization.record.util.DataTypeUtils;
+import org.apache.nifi.util.StopWatch;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicInteger;
+
+@Tags({"cassandra", "cql", "put", "insert", "update", "set", "record"})
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@CapabilityDescription("Writes the content of the incoming FlowFile as
individual records to Apache Cassandra using native protocol version 3 or
higher.")
+public class PutCassandraRecord extends AbstractCassandraProcessor {
+
+ static final PropertyDescriptor RECORD_READER_FACTORY = new
PropertyDescriptor.Builder()
+ .name("put-cassandra-record-reader")
+ .displayName("Record Reader")
+ .description("Specifies the type of Record Reader controller
service to use for parsing the incoming data " +
+ "and determining the schema")
+ .identifiesControllerService(RecordReaderFactory.class)
+ .required(true)
+ .build();
+
+ static final PropertyDescriptor TABLE = new
PropertyDescriptor.Builder()
+ .name("put-cassandra-record-table")
+ .displayName("Table name")
+ .description("The name of the Cassandra table to which the
records have to be written.")
+ .required(true)
+ .addValidator(StandardValidators.NON_EMPTY_EL_VALIDATOR)
+
.expressionLanguageSupported(ExpressionLanguageScope.FLOWFILE_ATTRIBUTES)
+ .build();
+
+ static final PropertyDescriptor BATCH_SIZE = new
PropertyDescriptor.Builder()
+ .name("put-cassandra-record-batch-size")
+ .displayName("Batch size")
+ .description("Specifies the number of 'Insert statements' to
be grouped together to execute as a batch (BatchStatement)")
+ .defaultValue("100")
+ .addValidator(StandardValidators.POSITIVE_INTEGER_VALIDATOR)
+ .expressionLanguageSupported(ExpressionLanguageScope.NONE)
--- End diff --
Why not use the variable registry here?
> Allow records to be put directly into Cassandra
> -----------------------------------------------
>
> Key: NIFI-5510
> URL: https://issues.apache.org/jira/browse/NIFI-5510
> Project: Apache NiFi
> Issue Type: New Feature
> Components: Extensions
> Reporter: Matt Burgess
> Assignee: Sivaprasanna Sethuraman
> Priority: Major
>
> Currently the standard way of getting data into Cassandra through NiFi is to
> use PutCassandraQL, which often means raw data needs to be converted to CQL
> statements, usually done (with modifications) via ConvertJSONToSQL.
> It would be better to have something closer to PutDatabaseRecord, a processor
> called PutCassandraRecord perhaps, that would take the raw data and input it
> into Cassandra "directly", without the need for the user to convert the data
> into CQL statements.
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