mattyb149 commented on a change in pull request #3912: NIFI-6889 - Create RulesRecordProcessor URL: https://github.com/apache/nifi/pull/3912#discussion_r353952959
########## File path: nifi-nar-bundles/nifi-rules-bundle/nifi-rules-processors/src/main/java/org/apache/nifi/rules/processors/RulesRecordProcessor.java ########## @@ -0,0 +1,244 @@ +/* + * 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.rules.processors; + +import org.apache.avro.Schema; +import org.apache.nifi.annotation.behavior.EventDriven; +import org.apache.nifi.annotation.behavior.InputRequirement; +import org.apache.nifi.annotation.behavior.SideEffectFree; +import org.apache.nifi.annotation.behavior.SupportsBatching; +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.annotation.lifecycle.OnScheduled; +import org.apache.nifi.avro.AvroTypeUtil; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.flowfile.FlowFile; +import org.apache.nifi.flowfile.attributes.CoreAttributes; +import org.apache.nifi.logging.ComponentLog; +import org.apache.nifi.processor.AbstractProcessor; +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.rules.Action; +import org.apache.nifi.rules.engine.RulesEngineService; +import org.apache.nifi.serialization.RecordReader; +import org.apache.nifi.serialization.RecordReaderFactory; +import org.apache.nifi.serialization.RecordSetWriter; +import org.apache.nifi.serialization.RecordSetWriterFactory; +import org.apache.nifi.serialization.WriteResult; +import org.apache.nifi.serialization.record.ListRecordSet; +import org.apache.nifi.serialization.record.MapRecord; +import org.apache.nifi.serialization.record.Record; +import org.apache.nifi.serialization.record.RecordSchema; +import org.apache.nifi.serialization.record.RecordSet; + +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; +import java.util.stream.Collectors; + +@EventDriven +@SideEffectFree +@SupportsBatching +@Tags({"record", "rules", "action", "rules engine"}) +@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED) +@WritesAttributes({ + @WritesAttribute(attribute = "record.count", description = "The number of records in an outgoing FlowFile"), + @WritesAttribute(attribute = "mime.type", description = "The MIME Type that the configured Record Writer indicates is appropriate"), +}) +@CapabilityDescription("Submits record values to a rules engine and returns actions determined by the engine as records ") +public class RulesRecordProcessor extends AbstractProcessor { + + static final PropertyDescriptor FACTS_RECORD_READER = new PropertyDescriptor.Builder() + .name("fact-record-reader") + .displayName("Fact Record Reader") + .description("Specifies the Controller Service to use for parsing incoming fact data and determining the data's schema.") + .identifiesControllerService(RecordReaderFactory.class) + .required(true) + .build(); + + static final PropertyDescriptor ACTION_RECORD_WRITER = new PropertyDescriptor.Builder() + .name("action-record-writer") + .displayName("Action Record Writer") + .description("Specifies the Controller Service to use for writing out action records") + .identifiesControllerService(RecordSetWriterFactory.class) + .required(true) + .build(); + + static final PropertyDescriptor RULES_ENGINE = new PropertyDescriptor.Builder() + .name("rules-engine-service") + .displayName("Rules Engine Service") + .description("Specifies the Controller Service to use for applying rules to metrics.") Review comment: Should this read `facts` instead of `metrics`? Just want to make sure the terminology is consistent throughout. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
