[GitHub] [beam] Amraneze commented on a diff in pull request #24973: [#24971] Add a retry policy for JmsIO #24971

["Amraneze (via GitHub)" <gi...@apache.org>]

Amraneze commented on code in PR #24973:
URL: https://github.com/apache/beam/pull/24973#discussion_r1082927134


##########
sdks/java/io/jms/src/main/java/org/apache/beam/sdk/io/jms/JmsIOProducer.java:
##########
@@ -0,0 +1,222 @@
+/*
+ * 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.beam.sdk.io.jms;
+
+import static org.apache.beam.sdk.io.jms.PublicationRetryPolicy.DEFAULT_PUBLICATION_RETRY_DURATION;
+
+import java.io.IOException;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Destination;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageProducer;
+import javax.jms.Session;
+import org.apache.beam.sdk.metrics.Counter;
+import org.apache.beam.sdk.metrics.Metrics;
+import org.apache.beam.sdk.transforms.DoFn;
+import org.apache.beam.sdk.transforms.PTransform;
+import org.apache.beam.sdk.transforms.ParDo;
+import org.apache.beam.sdk.util.BackOff;
+import org.apache.beam.sdk.util.BackOffUtils;
+import org.apache.beam.sdk.util.FluentBackoff;
+import org.apache.beam.sdk.util.Sleeper;
+import org.apache.beam.sdk.values.PCollection;
+import org.apache.beam.sdk.values.PCollectionTuple;
+import org.apache.beam.sdk.values.TupleTag;
+import org.apache.beam.sdk.values.TupleTagList;
+import org.checkerframework.checker.initialization.qual.Initialized;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+@SuppressWarnings({
+  "nullness" // TODO(https://github.com/apache/beam/issues/20497)
+})
+public class JmsIOProducer<T> extends PTransform<PCollection<T>, WriteJmsResult<T>> {
+
+  public static final String CONNECTION_ERRORS_METRIC_NAME = "connectionErrors";
+  public static final String PUBLICATION_RETRIES_METRIC_NAME = "publicationRetries";
+  public static final String JMS_IO_PRODUCER_METRIC_NAME = JmsIOProducer.class.getCanonicalName();
+
+  private static final Logger LOG = LoggerFactory.getLogger(JmsIOProducer.class);
+  private static final String PUBLISH_TO_JMS_STEP_NAME = "Publish to JMS";
+
+  private final JmsIO.Write<T> spec;
+  private final TupleTag<T> messagesTag;
+  private final TupleTag<T> failedMessagesTag;
+
+  JmsIOProducer(JmsIO.Write<T> spec) {
+    this.spec = spec;
+    this.messagesTag = new TupleTag<>();
+    this.failedMessagesTag = new TupleTag<>();
+  }
+
+  @Override
+  public WriteJmsResult<T> expand(PCollection<T> input) {
+    PCollectionTuple failedPublishedMessages =
+        input.apply(
+            PUBLISH_TO_JMS_STEP_NAME,
+            ParDo.of(new JmsIOProducerFn())
+                .withOutputTags(messagesTag, TupleTagList.of(failedMessagesTag)));
+    PCollection<T> failedMessages =
+        failedPublishedMessages.get(failedMessagesTag).setCoder(input.getCoder());
+    failedPublishedMessages.get(messagesTag).setCoder(input.getCoder());
+    return WriteJmsResult.in(input.getPipeline(), failedMessagesTag, failedMessages);
+  }
+
+  private class JmsIOProducerFn extends DoFn<T, T> {
+
+    private transient @Initialized Session session;
+    private transient @Initialized Connection connection;
+    private transient @Initialized Destination destination;
+    private transient @Initialized MessageProducer producer;
+    private transient @Initialized FluentBackoff retryPublicationBackoff;
+
+    private final Counter connectionErrors =
+        Metrics.counter(JMS_IO_PRODUCER_METRIC_NAME, CONNECTION_ERRORS_METRIC_NAME);
+    private final Counter publicationRetries =
+        Metrics.counter(JMS_IO_PRODUCER_METRIC_NAME, PUBLICATION_RETRIES_METRIC_NAME);
+
+    @Setup
+    public void setup() {
+      retryPublicationBackoff =
+          FluentBackoff.DEFAULT
+              .withMaxRetries(0)

Review Comment:
   Ok, I will work on it.



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