src/main/java/org/onap/dmaap/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 org.onap.dmaap.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 org.onap.dmaap.dmf.mr.backends.Publisher;
  37 import org.onap.dmaap.dmf.mr.constants.CambriaConstants;
  38 import org.onap.dmaap.dmf.mr.utils.Utils;
  39 //import org.slf4j.Logger;
  40 //import org.slf4j.LoggerFactory;
  41 import com.att.eelf.configuration.EELFLogger;
  42 import com.att.eelf.configuration.EELFManager;
  43 import com.att.nsa.drumlin.till.nv.rrNvReadable;
  44
  45
  46
  47 /**
  48  * Sends raw JSON objects into Kafka.
  49  *
  50  * Could improve space: BSON rather than JSON?
  51  *
  52  * @author peter
  53  *
  54  */
  55
  56 public class KafkaPublisher implements Publisher {
  57         /**
  58          * constructor initializing
  59          *
  60          * @param settings
  61          * @throws rrNvReadable.missingReqdSetting
  62          */
  63         public KafkaPublisher(@Qualifier("propertyReader") rrNvReadable settings) throws rrNvReadable.missingReqdSetting {
  64                 //fSettings = settings;
  65
  66                 final Properties props = new Properties();
  67                 /*transferSetting(fSettings, props, "metadata.broker.list", "localhost:9092");
  68                 transferSetting(fSettings, props, "request.required.acks", "1");
  69                 transferSetting(fSettings, props, "message.send.max.retries", "5");
  70                 transferSetting(fSettings, props, "retry.backoff.ms", "150"); */
  71                 String kafkaConnUrl= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka.metadata.broker.list");
  72                 if(null==kafkaConnUrl){
  73
  74                         kafkaConnUrl="localhost:9092";
  75                 }
  76
  77
  78             if(Utils.isCadiEnabled()){
  79                 transferSetting( props, "sasl.jaas.config", "org.apache.kafka.common.security.plain.PlainLoginModule required username='admin' password='"+Utils.getKafkaproperty()+"';");
  80                 transferSetting( props, "security.protocol", "SASL_PLAINTEXT");
  81                 transferSetting( props, "sasl.mechanism", "PLAIN");
  82             }
  83                 transferSetting( props, "bootstrap.servers",kafkaConnUrl);
  84
  85                 transferSetting( props, "request.required.acks", "1");
  86                 transferSetting( props, "message.send.max.retries", "5");
  87                 transferSetting(props, "retry.backoff.ms", "150");
  88
  89
  90
  91                 props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
  92                  props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
  93
  94
  95
  96                 fProducer = new KafkaProducer<>(props);
  97         }
  98
  99         /**
 100          * Send a message with a given topic and key.
 101          *
 102          * @param msg
 103          * @throws FailedToSendMessageException
 104          * @throws JSONException
 105          */
 106         @Override
 107         public void sendMessage(String topic, message msg) throws IOException{
 108                 final List<message> msgs = new LinkedList<message>();
 109                 msgs.add(msg);
 110                 sendMessages(topic, msgs);
 111         }
 112
 113         /**
 114          * method publishing batch messages
 115         * This method is commented from 0.8 to 0.11 upgrade
 116          * @param topic
 117          * @param kms
 118          * throws IOException
 119          *
 120         public void sendBatchMessage(String topic, ArrayList<KeyedMessage<String, String>> kms) throws IOException {
 121                 try {
 122                         fProducer.send(kms);
 123
 124                 } catch (FailedToSendMessageException excp) {
 125                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 126                         throw new FailedToSendMessageException(excp.getMessage(), excp);
 127                 }
 128
 129         } */
 130
 131
 132         /*
 133          * Kafka 11.0 Interface
 134          * @see com.att.nsa.cambria.backends.Publisher#sendBatchMessageNew(java.lang.String, java.util.ArrayList)
 135          */
 136         public void sendBatchMessageNew(String topic, ArrayList <ProducerRecord<String,String>> kms) throws IOException {
 137                 try {
 138                         for (ProducerRecord<String,String> km : kms) {
 139                                 fProducer.send(km);
 140                         }
 141
 142                 } catch (Exception excp) {
 143                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 144                         throw new IOException(excp.getMessage(), excp);
 145                 }
 146
 147         }
 148
 149         /**
 150          * Send a set of messages. Each must have a "key" string value.
 151          *
 152          * @param topic
 153          * @param msg
 154          * @throws FailedToSendMessageException
 155          * @throws JSONException
 156          *
 157         @Override
 158         public void sendMessages(String topic, List<? extends message> msgs)
 159                         throws IOException, FailedToSendMessageException {
 160                 log.info("sending " + msgs.size() + " events to [" + topic + "]");
 161
 162                 final List<KeyedMessage<String, String>> kms = new ArrayList<KeyedMessage<String, String>>(msgs.size());
 163                 for (message o : msgs) {
 164                         final KeyedMessage<String, String> data = new KeyedMessage<String, String>(topic, o.getKey(), o.toString());
 165                         kms.add(data);
 166                 }
 167                 try {
 168                         fProducer.send(kms);
 169
 170                 } catch (FailedToSendMessageException excp) {
 171                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 172                         throw new FailedToSendMessageException(excp.getMessage(), excp);
 173                 }
 174         } */
 175         @Override
 176         public void sendMessagesNew(String topic, List<? extends message> msgs)
 177                         throws IOException {
 178                 log.info("sending " + msgs.size() + " events to [" + topic + "]");
 179 try{
 180                 final List<ProducerRecord<String, String>> kms = new ArrayList<>(msgs.size());
 181                         for (message o : msgs) {
 182
 183                         final ProducerRecord<String, String> data = new ProducerRecord<>(topic, o.getKey(), o.toString());
 184
 185
 186                 try {
 187
 188                         fProducer.send(data);
 189
 190                 } catch (Exception excp) {
 191                         log.error("Failed to send message(s) to topic [" + topic + "].", excp);
 192                         throw new Exception(excp.getMessage(), excp);
 193                 }
 194         }
 195
 196         }catch(Exception e){}
 197 }
 198         //private final rrNvReadable fSettings;
 199
 200
 201         private Producer<String, String> fProducer;
 202
 203   /**
 204    * It sets the key value pair
 205    * @param topic
 206    * @param msg
 207    * @param key
 208    * @param defVal
 209    */
 210         private void transferSetting(Properties props, String key, String defVal) {
 211                 String kafka_prop= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka." + key);
 212                 if (null==kafka_prop) kafka_prop=defVal;
 213                 //props.put(key, settings.getString("kafka." + key, defVal));
 214                 props.put(key, kafka_prop);
 215         }
 216
 217         //private static final Logger log = LoggerFactory.getLogger(KafkaPublisher.class);
 218
 219         private static final EELFLogger log = EELFManager.getInstance().getLogger(KafkaPublisher.class);
 220
 221         @Override
 222         public void sendMessages(String topic, List<? extends message> msgs) throws IOException {
 223                 // TODO Auto-generated method stub
 224
 225         }
 226
 227
 228 }