[GitHub] [nifi] markap14 commented on a change in pull request #4374: NIFI-7572: Added ScriptedTransformRecord processor. Addressed a coupl…

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markap14 commented on a change in pull request #4374:
URL: https://github.com/apache/nifi/pull/4374#discussion_r450517533



##########
File path: nifi-nar-bundles/nifi-scripting-bundle/nifi-scripting-processors/src/main/java/org/apache/nifi/processors/script/ScriptedTransformRecord.java
##########
@@ -0,0 +1,391 @@
+/*
+ * 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.script;
+
+import org.apache.commons.io.IOUtils;
+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.SeeAlso;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.annotation.lifecycle.OnScheduled;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.PropertyDescriptor.Builder;
+import org.apache.nifi.components.ValidationContext;
+import org.apache.nifi.components.ValidationResult;
+import org.apache.nifi.flowfile.FlowFile;
+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.schema.access.SchemaNotFoundException;
+import org.apache.nifi.script.ScriptingComponentHelper;
+import org.apache.nifi.script.ScriptingComponentUtils;
+import org.apache.nifi.search.SearchContext;
+import org.apache.nifi.search.SearchResult;
+import org.apache.nifi.search.Searchable;
+import org.apache.nifi.serialization.MalformedRecordException;
+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.Record;
+import org.python.jsr223.PyScriptEngine;
+
+import javax.script.Bindings;
+import javax.script.CompiledScript;
+import javax.script.ScriptContext;
+import javax.script.ScriptEngine;
+import javax.script.ScriptException;
+import javax.script.SimpleBindings;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
+
+@EventDriven
+@SupportsBatching
+@SideEffectFree
+@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED)
+@Tags({"record", "transform", "script", "groovy", "jython", "python", "update", "modify", "filter"})
+@WritesAttributes({
+    @WritesAttribute(attribute = "mime.type", description = "Sets the mime.type attribute to the MIME Type specified by the Record Writer"),
+    @WritesAttribute(attribute = "record.count", description = "The number of records in the FlowFile"),
+    @WritesAttribute(attribute = "record.error.message", description = "This attribute provides on failure the error message encountered by the Reader or Writer.")
+})
+@CapabilityDescription("Provides the ability to evaluate a simple script against each record in an incoming FlowFile. The script may transform the record in some way, filter the record, or fork " +
+    "additional records. See Processor's Additional Details for more information.")
+@SeeAlso(classNames = {"org.apache.nifi.processors.script.ExecuteScript",
+    "org.apache.nifi.processors.standard.UpdateRecord",
+    "org.apache.nifi.processors.standard.QueryRecord",
+    "org.apache.nifi.processors.standard.JoltTransformRecord",
+    "org.apache.nifi.processors.standard.LookupRecord"})
+public class ScriptedTransformRecord extends AbstractProcessor implements Searchable {

Review comment:
       Great catch!




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