1 /*******************************************************************************
2 * ============LICENSE_START=======================================================
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
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=========================================================
19 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
21 *******************************************************************************/
22 package com.att.dmf.mr.backends.kafka;
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;
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;
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;
47 * Sends raw JSON objects into Kafka.
49 * Could improve space: BSON rather than JSON?
55 public class KafkaPublisher implements Publisher {
57 * constructor initializing
60 * @throws rrNvReadable.missingReqdSetting
62 public KafkaPublisher(@Qualifier("propertyReader") rrNvReadable settings) throws rrNvReadable.missingReqdSetting {
63 //fSettings = settings;
65 final Properties props = new Properties();
66 /*transferSetting(fSettings, props, "metadata.broker.list", "localhost:9092");
67 transferSetting(fSettings, props, "request.required.acks", "1");
68 transferSetting(fSettings, props, "message.send.max.retries", "5");
69 transferSetting(fSettings, props, "retry.backoff.ms", "150"); */
70 String kafkaConnUrl= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka.metadata.broker.list");
71 if(null==kafkaConnUrl){
73 kafkaConnUrl="localhost:9092";
78 transferSetting( props, "sasl.jaas.config", "org.apache.kafka.common.security.plain.PlainLoginModule required username='admin' password='admin_secret';");
79 transferSetting( props, "security.protocol", "SASL_PLAINTEXT");
80 transferSetting( props, "sasl.mechanism", "PLAIN");
81 transferSetting( props, "bootstrap.servers",kafkaConnUrl);
83 transferSetting( props, "request.required.acks", "1");
84 transferSetting( props, "message.send.max.retries", "5");
85 transferSetting(props, "retry.backoff.ms", "150");
89 props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
90 props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
94 fProducer = new KafkaProducer<>(props);
98 * Send a message with a given topic and key.
101 * @throws FailedToSendMessageException
102 * @throws JSONException
105 public void sendMessage(String topic, message msg) throws IOException{
106 final List<message> msgs = new LinkedList<message>();
108 sendMessages(topic, msgs);
112 * method publishing batch messages
113 * This method is commented from 0.8 to 0.11 upgrade
118 public void sendBatchMessage(String topic, ArrayList<KeyedMessage<String, String>> kms) throws IOException {
122 } catch (FailedToSendMessageException excp) {
123 log.error("Failed to send message(s) to topic [" + topic + "].", excp);
124 throw new FailedToSendMessageException(excp.getMessage(), excp);
131 * Kafka 11.0 Interface
132 * @see com.att.nsa.cambria.backends.Publisher#sendBatchMessageNew(java.lang.String, java.util.ArrayList)
134 public void sendBatchMessageNew(String topic, ArrayList <ProducerRecord<String,String>> kms) throws IOException {
136 for (ProducerRecord<String,String> km : kms) {
140 } catch (Exception excp) {
141 log.error("Failed to send message(s) to topic [" + topic + "].", excp);
142 throw new IOException(excp.getMessage(), excp);
148 * Send a set of messages. Each must have a "key" string value.
152 * @throws FailedToSendMessageException
153 * @throws JSONException
156 public void sendMessages(String topic, List<? extends message> msgs)
157 throws IOException, FailedToSendMessageException {
158 log.info("sending " + msgs.size() + " events to [" + topic + "]");
160 final List<KeyedMessage<String, String>> kms = new ArrayList<KeyedMessage<String, String>>(msgs.size());
161 for (message o : msgs) {
162 final KeyedMessage<String, String> data = new KeyedMessage<String, String>(topic, o.getKey(), o.toString());
168 } catch (FailedToSendMessageException excp) {
169 log.error("Failed to send message(s) to topic [" + topic + "].", excp);
170 throw new FailedToSendMessageException(excp.getMessage(), excp);
174 public void sendMessagesNew(String topic, List<? extends message> msgs)
176 log.info("sending " + msgs.size() + " events to [" + topic + "]");
178 final List<ProducerRecord<String, String>> kms = new ArrayList<>(msgs.size());
179 for (message o : msgs) {
181 final ProducerRecord<String, String> data = new ProducerRecord<>(topic, o.getKey(), o.toString());
186 fProducer.send(data);
188 } catch (Exception excp) {
189 log.error("Failed to send message(s) to topic [" + topic + "].", excp);
190 throw new Exception(excp.getMessage(), excp);
194 }catch(Exception e){}
196 //private final rrNvReadable fSettings;
199 private Producer<String, String> fProducer;
202 * It sets the key value pair
208 private void transferSetting(Properties props, String key, String defVal) {
209 String kafka_prop= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka." + key);
210 if (null==kafka_prop) kafka_prop=defVal;
211 //props.put(key, settings.getString("kafka." + key, defVal));
212 props.put(key, kafka_prop);
215 //private static final Logger log = LoggerFactory.getLogger(KafkaPublisher.class);
217 private static final EELFLogger log = EELFManager.getInstance().getLogger(KafkaPublisher.class);
220 public void sendMessages(String topic, List<? extends message> msgs) throws IOException {
221 // TODO Auto-generated method stub