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From jskora <...@git.apache.org>
Subject [GitHub] nifi pull request #458: NIFI-1829 - Create new DebugFlow processor.
Date Thu, 16 Jun 2016 12:30:36 GMT
Github user jskora commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/458#discussion_r67335284
  
    --- Diff: nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/DebugFlow.java
---
    @@ -0,0 +1,499 @@
    +/*
    + * 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 org.apache.http.annotation.ThreadSafe;
    +import org.apache.nifi.annotation.behavior.EventDriven;
    +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.flowfile.attributes.CoreAttributes;
    +import org.apache.nifi.logging.ComponentLog;
    +import org.apache.nifi.annotation.lifecycle.OnScheduled;
    +import org.apache.nifi.annotation.documentation.CapabilityDescription;
    +import org.apache.nifi.annotation.documentation.Tags;
    +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.processor.util.StandardValidators;
    +
    +import java.lang.reflect.InvocationTargetException;
    +import java.util.ArrayList;
    +import java.util.Collections;
    +import java.util.HashSet;
    +import java.util.List;
    +import java.util.Set;
    +import java.util.concurrent.atomic.AtomicReference;
    +
    +@ThreadSafe()
    +@EventDriven()
    +@Tags({"test", "debug", "processor", "utility", "flow", "FlowFile"})
    +@CapabilityDescription("The DebugFlow processor aids testing and debugging the FlowFile
framework by allowing various "
    +        + "responses to be explicitly triggered in response to the receipt of a FlowFile
or a timer event without a "
    +        + "FlowFile if using timer or cron based scheduling.  It can force responses
needed to exercise or test "
    +        + "various failure modes that can occur when a processor runs.\n"
    +        + "\n"
    +        + "When triggered, the processor loops through the appropriate response list
(based on whether or not it "
    +        + "received a FlowFile).  A response is produced the configured number of times
for each pass through its"
    +        + "response list, as long as the processor is running.\n"
    +        + "\n"
    +        + "Triggered by a FlowFile, the processor can produce the following responses."
    +        + "  1. transfer FlowFile to success relationship.\n"
    +        + "  2. transfer FlowFile to failure relationship.\n"
    +        + "  3. rollback the FlowFile without penalty.\n"
    +        + "  4. rollback the FlowFile and yield the context.\n"
    +        + "  5. rollback the FlowFile with penalty.\n"
    +        + "  6. throw an exception.\n"
    +        + "\n"
    +        + "Triggered without a FlowFile, the processor can produce the following responses."
    +        + "  1. do nothing and return.\n"
    +        + "  2. throw an exception.\n"
    +        + "  3. yield the context.\n")
    --- End diff --
    
    Split out to additional details page.


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