Github user olegz commented on a diff in the pull request: https://github.com/apache/nifi/pull/354#discussion_r59997274 --- Diff: nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/TransformJSON.java --- @@ -0,0 +1,212 @@ +/* + * 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.standard; + + +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.concurrent.TimeUnit; + +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.documentation.CapabilityDescription; +import org.apache.nifi.annotation.documentation.Tags; +import org.apache.nifi.annotation.lifecycle.OnScheduled; +import org.apache.nifi.components.AllowableValue; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.components.ValidationContext; +import org.apache.nifi.components.ValidationResult; +import org.apache.nifi.components.Validator; +import org.apache.nifi.flowfile.FlowFile; +import org.apache.nifi.logging.ProcessorLog; +import org.apache.nifi.processor.AbstractProcessor; +import org.apache.nifi.processor.ProcessContext; +import org.apache.nifi.processor.ProcessSession; +import org.apache.nifi.processor.ProcessorInitializationContext; +import org.apache.nifi.processor.Relationship; +import org.apache.nifi.processor.exception.ProcessException; +import org.apache.nifi.processor.io.StreamCallback; +import org.apache.nifi.processor.util.StandardValidators; +import org.apache.nifi.stream.io.BufferedInputStream; +import org.apache.nifi.util.StopWatch; + +import com.bazaarvoice.jolt.Shiftr; +import com.bazaarvoice.jolt.Removr; +import com.bazaarvoice.jolt.Chainr; +import com.bazaarvoice.jolt.Defaultr; +import com.bazaarvoice.jolt.Transform; +import com.bazaarvoice.jolt.JsonUtils; + +@EventDriven +@SideEffectFree +@SupportsBatching +@Tags({"json", "jolt", "transform", "shiftr", "chainr", "defaultr", "removr"}) +@InputRequirement(InputRequirement.Requirement.INPUT_REQUIRED) +@CapabilityDescription("Applies a list of JOLT specifications to the flowfile JSON payload. A new FlowFile is created " + + "with transformed content and is routed to the 'success' relationship. If the JSON transform " + + "fails, the original FlowFile is routed to the 'failure' relationship") +public class TransformJSON extends AbstractProcessor { + + public static final AllowableValue SHIFTR = new AllowableValue("Shift", "Shift Transform DSL", "This JOLT transformation will shift input JSON/data to create the output JSON/data."); + public static final AllowableValue CHAINR = new AllowableValue("Chain", "Chain Transform DSL", "Execute list of JOLT transformations."); + public static final AllowableValue DEFAULTR = new AllowableValue("Default", "Default Transform DSL", " This JOLT transformation will apply default values to the output JSON/data."); + public static final AllowableValue REMOVR = new AllowableValue("Remove", "Remove Transform DSL", " This JOLT transformation will apply default values to the output JSON/data."); + + public static final PropertyDescriptor JOLT_SPEC = new PropertyDescriptor.Builder() + .name("Jolt Specification") + .description("Jolt Specification for transform of JSON data.") + .required(true) + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .addValidator(new JOLTSpecValidator()) + .required(true) + .build(); + + public static final PropertyDescriptor JOLT_TRANSFORM = new PropertyDescriptor.Builder() + .name("Jolt Transformation") + .description("Specifies the Jolt Transformation that should be used with the provided specification.") + .required(true) + .allowableValues(SHIFTR, CHAINR, DEFAULTR, REMOVR) + .defaultValue(CHAINR.getValue()) + .build(); + + public static final Relationship REL_SUCCESS = new Relationship.Builder() + .name("success") + .description("The FlowFile with transformed content will be routed to this relationship") + .build(); + public static final Relationship REL_FAILURE = new Relationship.Builder() + .name("failure") + .description("If a FlowFile fails processing for any reason (for example, the FlowFile is not valid JSON), it will be routed to this relationship") + .build(); + + private List<PropertyDescriptor> properties; + private Set<Relationship> relationships; + private Transform transform; + + + @Override + protected void init(ProcessorInitializationContext context) { --- End diff -- @YolandaMDavis I may be wrong or new, but it appears this is your first contribution and if so Welcome to Apache NiFi!
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---