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https://issues.apache.org/jira/browse/NIFI-865?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15128561#comment-15128561
]
ASF GitHub Bot commented on NIFI-865:
-------------------------------------
Github user markap14 commented on a diff in the pull request:
https://github.com/apache/nifi/pull/200#discussion_r51598495
--- Diff:
nifi-nar-bundles/nifi-amqp-bundle/nifi-amqp-processors/src/main/java/org/apache/nifi/amqp/processors/PublishAMQP.java
---
@@ -0,0 +1,219 @@
+/*
+ * 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.amqp.processors;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Properties;
+import java.util.Set;
+
+import org.apache.nifi.annotation.behavior.InputRequirement;
+import org.apache.nifi.annotation.behavior.InputRequirement.Requirement;
+import org.apache.nifi.annotation.documentation.CapabilityDescription;
+import org.apache.nifi.annotation.documentation.Tags;
+import org.apache.nifi.components.PropertyDescriptor;
+import org.apache.nifi.components.Validator;
+import org.apache.nifi.flowfile.FlowFile;
+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.io.InputStreamCallback;
+import org.apache.nifi.processor.util.StandardValidators;
+import org.apache.nifi.stream.io.StreamUtils;
+
+import com.rabbitmq.client.AMQP;
+import com.rabbitmq.client.AMQP.BasicProperties;
+
+/**
+ * Publishing AMQP processor which upon each invocation of
+ * {@link #onTrigger(ProcessContext, ProcessSession)} method will
construct an
+ * AMQP message sending it to an exchange identified during construction
of this
+ * class while transferring the incoming {@link FlowFile} to 'success'
+ * {@link Relationship}.
+ *
+ * Expects that queues, exchanges and bindings are pre-defined by an AMQP
+ * administrator
+ */
+@Tags({ "amqp", "rabbit", "put", "message", "send", "publish" })
+@InputRequirement(Requirement.INPUT_REQUIRED)
+@CapabilityDescription("Creates a AMQP Message from the contents of a
FlowFile and sends the message to an AMQP Server")
+public class PublishAMQP extends AbstractAMQPProcessor<AMQPPublisher> {
+
+ public static final PropertyDescriptor EXCHANGE = new
PropertyDescriptor.Builder()
--- End diff --
This PropertyDescriptor confuses me. It indicates in the description that
it is optional but is then marked required, and allows an empty string. Does it
make more sense to mark it as not required and then use a NON_EMPTY_VALIDATOR
with no default?
> Add processors to Get and Put to/from AMQP-based messaging systems
> ------------------------------------------------------------------
>
> Key: NIFI-865
> URL: https://issues.apache.org/jira/browse/NIFI-865
> Project: Apache NiFi
> Issue Type: Wish
> Components: Extensions
> Reporter: Joseph Witt
> Assignee: Oleg Zhurakousky
> Labels: beginner
> Fix For: 0.5.0
>
>
> David Smith in the mailing list has already begun work on this. The link to
> his current set of code in Github is here:
> https://github.com/helicopterman22/nifi_amqp_processors
> He is seeking help with licensing/unit testing/etc.. so that it can end up in
> a build.
> We have word from another user now that they too are interested in this.
> They specifically are using RabbitMQ but we should be able to implement
> (ideally) a pure AMQP protocol friendly version and be good to go.
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