[GitHub] [incubator-gobblin] vikrambohra commented on a change in pull request #2622: Added random key generator for reporters. Added reporters fo…

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vikrambohra commented on a change in pull request #2622: Added random key generator for reporters. Added reporters fo…
URL: https://github.com/apache/incubator-gobblin/pull/2622#discussion_r280293704
 
 

 ##########
 File path: gobblin-modules/gobblin-kafka-common/src/main/java/org/apache/gobblin/metrics/kafka/KeyValueEventObjectReporter.java
 ##########
 @@ -0,0 +1,193 @@
+/*
+ * 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.gobblin.metrics.kafka;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Queue;
+import java.util.Random;
+
+import org.apache.avro.generic.GenericRecord;
+import org.apache.commons.lang3.tuple.Pair;
+
+import com.google.common.base.Optional;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Lists;
+import com.typesafe.config.Config;
+
+import lombok.extern.slf4j.Slf4j;
+
+import org.apache.gobblin.configuration.ConfigurationKeys;
+import org.apache.gobblin.metrics.GobblinTrackingEvent;
+import org.apache.gobblin.metrics.MetricContext;
+import org.apache.gobblin.metrics.reporter.EventReporter;
+import org.apache.gobblin.util.AvroUtils;
+import org.apache.gobblin.util.ConfigUtils;
+
+
+@Slf4j
+public class KeyValueEventObjectReporter extends EventReporter {
+  private static final String PUSHER_CONFIG = "pusherConfig";
+
+  protected Optional<List<String>> keys = Optional.absent();
+  protected final String randomKey;
+  protected KeyValuePusher pusher;
+  protected Optional<Map<String,String>> namespaceOverride;
+  protected final String topic;
+
+  public KeyValueEventObjectReporter(Builder<?> builder){
+    super(builder);
+
+    this.topic=builder.topic;
+    this.namespaceOverride=builder.namespaceOverride;
+    Config config = builder.config.get();
+
+    if (builder.pusher.isPresent()) {
+      this.pusher = builder.pusher.get();
+    } else {
+      Config pusherConfig = ConfigUtils.getConfigOrEmpty(config, PUSHER_CONFIG).withFallback(config);
+      String pusherClassName = ConfigUtils.getString(config, "pusherClass", PusherUtils.DEFAULT_KEY_VALUE_PUSHER_CLASS_NAME);
+      this.pusher = PusherUtils.getKeyValuePusher(pusherClassName, builder.brokers, builder.topic, Optional.of(pusherConfig));
+    }
+
+    this.closer.register(this.pusher);
+
+    randomKey=String.valueOf(new Random().nextInt(100));
 
 Review comment:
   Not sure if that's the right place. buildKey is called for each push message and we do not want to create a new random number per message.

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