src/main/java/com/att/dmf/mr/backends/kafka/KafkaPublisher.java

   1 /*******************************************************************************
   2  *  ============LICENSE_START=======================================================
   3  *  org.onap.dmaap
   4  *  ================================================================================
   5  *  Copyright © 2017 AT&T Intellectual Property. All rights reserved.
   6  *  ================================================================================
   7  *  Licensed under the Apache License, Version 2.0 (the "License");
   8  *  you may not use this file except in compliance with the License.
   9  *  You may obtain a copy of the License at
  10  *        http://www.apache.org/licenses/LICENSE-2.0
  11 *
  12  *  Unless required by applicable law or agreed to in writing, software
  13  *  distributed under the License is distributed on an "AS IS" BASIS,
  14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  *  See the License for the specific language governing permissions and
  16  *  limitations under the License.
  17  *  ============LICENSE_END=========================================================
  18  *
  19  *  ECOMP is a trademark and service mark of AT&T Intellectual Property.
  20  *
  21  *******************************************************************************/
  22 package com.att.dmf.mr.backends.kafka;
  23
  24 import java.io.IOException;
  25 import java.util.ArrayList;
  26 import java.util.LinkedList;
  27 import java.util.List;
  28 import java.util.Properties;
  29
  30 import org.apache.kafka.clients.producer.KafkaProducer;
  31 import org.apache.kafka.clients.producer.Producer;
  32 import org.apache.kafka.clients.producer.ProducerRecord;
  33 import org.json.JSONException;
  34 import org.springframework.beans.factory.annotation.Qualifier;
  35
  36 import com.att.dmf.mr.backends.Publisher;
  37 import com.att.dmf.mr.constants.CambriaConstants;
  38 //import org.slf4j.Logger;
  39 //import org.slf4j.LoggerFactory;
  40 import com.att.eelf.configuration.EELFLogger;
  41 import com.att.eelf.configuration.EELFManager;
  42 import com.att.nsa.drumlin.till.nv.rrNvReadable;
  43
  44
  45 //import kafka.javaapi.producer.Producer;
  46 //import kafka.producer.KeyedMessage;
  47 //import kafka.producer.ProducerConfig;
  48 //import kafka.producer.KeyedMessage;
  49
  50 /**
  51  * Sends raw JSON objects into Kafka.
  52  *
  53  * Could improve space: BSON rather than JSON?
  54  *
  55  * @author peter
  56  *
  57  */
  58
  59 public class KafkaPublisher implements Publisher {
  60         /**
  61          * constructor initializing
  62          *
  63          * @param settings
  64          * @throws rrNvReadable.missingReqdSetting
  65          */
  66         public KafkaPublisher(@Qualifier("propertyReader") rrNvReadable settings) throws rrNvReadable.missingReqdSetting {
  67                 //fSettings = settings;
  68
  69                 final Properties props = new Properties();
  70                 /*transferSetting(fSettings, props, "metadata.broker.list", "localhost:9092");
  71                 transferSetting(fSettings, props, "request.required.acks", "1");
  72                 transferSetting(fSettings, props, "message.send.max.retries", "5");
  73                 transferSetting(fSettings, props, "retry.backoff.ms", "150"); */
  74                 String kafkaConnUrl= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka.metadata.broker.list");
  75                 if(null==kafkaConnUrl){
  76
  77                         kafkaConnUrl="localhost:9092";
  78                 }
  79
  80          //     props.put("bootstrap.servers", bootSever);
  81         //System.setProperty("java.security.auth.login.config",jaaspath);
  82
  83
  84                 transferSetting( props, "bootstrap.servers",kafkaConnUrl);
  85
  86                 transferSetting( props, "request.required.acks", "1");
  87                 transferSetting( props, "message.send.max.retries", "5");
  88                 transferSetting(props, "retry.backoff.ms", "150");
  89
  90
  91
  92                 props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
  93                  props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
  94
  95
  96                 //fProducer = new Producer<String, String>(fConfig);
  97                 fProducer = new KafkaProducer<>(props);
  98         }
  99
 100         /**
 101          * Send a message with a given topic and key.
 102          *
 103          * @param msg
 104          * @throws FailedToSendMessageException
 105          * @throws JSONException
 106          */
 107         @Override
 108         public void sendMessage(String topic, message msg) throws IOException{
 109                 final List<message> msgs = new LinkedList<message>();
 110                 msgs.add(msg);
 111                 sendMessages(topic, msgs);
 112         }
 113
 114         /**
 115          * method publishing batch messages
 116         * This method is commented from 0.8 to 0.11 upgrade
 117          * @param topic
 118          * @param kms
 119          * throws IOException
 120          *
 121         public void sendBatchMessage(String topic, ArrayList<KeyedMessage<String, String>> kms) throws IOException {
 122                 try {
 123                         fProducer.send(kms);
 124
 125                 } catch (FailedToSendMessageException excp) {
 126                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 127                         throw new FailedToSendMessageException(excp.getMessage(), excp);
 128                 }
 129
 130         } */
 131
 132
 133         /*
 134          * Kafka 11.0 Interface
 135          * @see com.att.nsa.cambria.backends.Publisher#sendBatchMessageNew(java.lang.String, java.util.ArrayList)
 136          */
 137         public void sendBatchMessageNew(String topic, ArrayList <ProducerRecord<String,String>> kms) throws IOException {
 138                 try {
 139                         for (ProducerRecord<String,String> km : kms) {
 140                                 fProducer.send(km);
 141                         }
 142
 143                 } catch (Exception excp) {
 144                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 145                         throw new IOException(excp.getMessage(), excp);
 146                 }
 147
 148         }
 149
 150         /**
 151          * Send a set of messages. Each must have a "key" string value.
 152          *
 153          * @param topic
 154          * @param msg
 155          * @throws FailedToSendMessageException
 156          * @throws JSONException
 157          *
 158         @Override
 159         public void sendMessages(String topic, List<? extends message> msgs)
 160                         throws IOException, FailedToSendMessageException {
 161                 log.info("sending " + msgs.size() + " events to [" + topic + "]");
 162
 163                 final List<KeyedMessage<String, String>> kms = new ArrayList<KeyedMessage<String, String>>(msgs.size());
 164                 for (message o : msgs) {
 165                         final KeyedMessage<String, String> data = new KeyedMessage<String, String>(topic, o.getKey(), o.toString());
 166                         kms.add(data);
 167                 }
 168                 try {
 169                         fProducer.send(kms);
 170
 171                 } catch (FailedToSendMessageException excp) {
 172                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 173                         throw new FailedToSendMessageException(excp.getMessage(), excp);
 174                 }
 175         } */
 176         @Override
 177         public void sendMessagesNew(String topic, List<? extends message> msgs)
 178                         throws IOException {
 179                 log.info("sending " + msgs.size() + " events to [" + topic + "]");
 180 try{
 181                 final List<ProducerRecord<String, String>> kms = new ArrayList<ProducerRecord<String, String>>(msgs.size());
 182                         for (message o : msgs) {
 183
 184                         final ProducerRecord<String, String> data = new ProducerRecord<String, String>(topic, o.getKey(), o.toString());
 185
 186
 187                 try {
 188
 189                         fProducer.send(data);
 190
 191                 } catch (Exception excp) {
 192                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 193                         throw new Exception(excp.getMessage(), excp);
 194                 }
 195         }
 196
 197         }catch(Exception e){}
 198 }
 199         //private final rrNvReadable fSettings;
 200
 201
 202         private Producer<String, String> fProducer;
 203
 204   /**
 205    * It sets the key value pair
 206    * @param topic
 207    * @param msg
 208    * @param key
 209    * @param defVal
 210    */
 211         private void transferSetting(Properties props, String key, String defVal) {
 212                 String kafka_prop= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka." + key);
 213                 if (null==kafka_prop) kafka_prop=defVal;
 214                 //props.put(key, settings.getString("kafka." + key, defVal));
 215                 props.put(key, kafka_prop);
 216         }
 217
 218         //private static final Logger log = LoggerFactory.getLogger(KafkaPublisher.class);
 219
 220         private static final EELFLogger log = EELFManager.getInstance().getLogger(KafkaPublisher.class);
 221
 222         @Override
 223         public void sendMessages(String topic, List<? extends message> msgs) throws IOException {
 224                 // TODO Auto-generated method stub
 225
 226         }
 227
 228
 229 }