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From trixpan <...@git.apache.org>
Subject [GitHub] nifi pull request: NIFI-856 Implements experimental ListenLumberjack Process...
Date Wed, 01 Jun 2016 04:00:18 GMT
Github user trixpan commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/290#discussion_r65298978
  
    --- Diff: nifi-nar-bundles/nifi-lumberjack-bundle/nifi-lumberjack-processors/src/main/java/org/apache/nifi/processors/lumberjack/ListenLumberjack.java
---
    @@ -0,0 +1,237 @@
    +/*
    + * 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.lumberjack;
    +
    +import com.google.gson.Gson;
    +import org.apache.nifi.annotation.behavior.InputRequirement;
    +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.ValidationContext;
    +import org.apache.nifi.components.ValidationResult;
    +import org.apache.nifi.flowfile.attributes.CoreAttributes;
    +import org.apache.nifi.flowfile.attributes.FlowFileAttributeKey;
    +import org.apache.nifi.processor.DataUnit;
    +import org.apache.nifi.processor.ProcessContext;
    +import org.apache.nifi.processor.ProcessSession;
    +import org.apache.nifi.processor.util.listen.AbstractListenEventBatchingProcessor;
    +import org.apache.nifi.processor.util.listen.dispatcher.AsyncChannelDispatcher;
    +import org.apache.nifi.processor.util.listen.dispatcher.ChannelDispatcher;
    +import org.apache.nifi.processor.util.listen.dispatcher.SocketChannelDispatcher;
    +import org.apache.nifi.processor.util.listen.event.EventFactory;
    +import org.apache.nifi.processor.util.listen.handler.ChannelHandlerFactory;
    +import org.apache.nifi.processor.util.listen.response.ChannelResponder;
    +import org.apache.nifi.processor.util.listen.response.ChannelResponse;
    +import org.apache.nifi.processors.lumberjack.event.LumberjackEvent;
    +import org.apache.nifi.processors.lumberjack.event.LumberjackEventFactory;
    +import org.apache.nifi.processors.lumberjack.frame.LumberjackEncoder;
    +import org.apache.nifi.processors.lumberjack.handler.LumberjackSocketChannelHandlerFactory;
    +import org.apache.nifi.processors.lumberjack.response.LumberjackChannelResponse;
    +import org.apache.nifi.processors.lumberjack.response.LumberjackResponse;
    +import org.apache.nifi.ssl.SSLContextService;
    +
    +import javax.net.ssl.SSLContext;
    +import java.io.IOException;
    +import java.nio.ByteBuffer;
    +import java.nio.charset.Charset;
    +import java.util.Arrays;
    +import java.util.HashMap;
    +import java.util.List;
    +import java.util.Map;
    +import java.util.Collection;
    +import java.util.ArrayList;
    +import java.util.concurrent.BlockingQueue;
    +
    +
    +@InputRequirement(InputRequirement.Requirement.INPUT_FORBIDDEN)
    +@Tags({"listen", "lumberjack", "tcp", "logs"})
    +@CapabilityDescription("Listens for Lumberjack messages being sent to a given port over
TCP. Each message will be " +
    +        "acknowledged after successfully writing the message to a FlowFile. Each FlowFile
will contain data " +
    +        "portion of one or more Lumberjack frames. In the case where the Lumberjack frames
contain syslog messages, the " +
    +        "output of this processor can be sent to a ParseSyslog processor for further
processing.")
    +@WritesAttributes({
    +        @WritesAttribute(attribute="lumberjack.sender", description="The sending host
of the messages."),
    +        @WritesAttribute(attribute="lumberjack.port", description="The sending port the
messages were received over."),
    +        @WritesAttribute(attribute="lumberjack.sequencenumber", description="The sequence
number of the message. Only included if <Batch Size> is 1."),
    +        @WritesAttribute(attribute="lumberjack.*", description="The keys and respective
values as sent by the lumberjack producer. Only included if <Batch Size> is 1."),
    +        @WritesAttribute(attribute="mime.type", description="The mime.type of the content
which is text/plain")
    +})
    +@SeeAlso(classNames = {"org.apache.nifi.processors.standard.ParseSyslog"})
    +public class ListenLumberjack extends AbstractListenEventBatchingProcessor<LumberjackEvent>
{
    +
    +    public static final PropertyDescriptor SSL_CONTEXT_SERVICE = new PropertyDescriptor.Builder()
    --- End diff --
    
    @apiri 
    
    Made it required just to provide overall consistency with clients. Will revisit when v2
support is introduced.


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