1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*
*******************************************************************************/
package com.att.dmf.mr.backends.kafka;
import java.io.IOException;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.Properties;
import org.apache.kafka.clients.producer.KafkaProducer;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.json.JSONException;
import org.springframework.beans.factory.annotation.Qualifier;
import com.att.dmf.mr.backends.Publisher;
import com.att.dmf.mr.constants.CambriaConstants;
//import org.slf4j.Logger;
//import org.slf4j.LoggerFactory;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.att.nsa.drumlin.till.nv.rrNvReadable;
//import kafka.javaapi.producer.Producer;
//import kafka.producer.KeyedMessage;
//import kafka.producer.ProducerConfig;
//import kafka.producer.KeyedMessage;
/**
* Sends raw JSON objects into Kafka.
*
* Could improve space: BSON rather than JSON?
*
* @author peter
*
*/
public class KafkaPublisher implements Publisher {
/**
* constructor initializing
*
* @param settings
* @throws rrNvReadable.missingReqdSetting
*/
public KafkaPublisher(@Qualifier("propertyReader") rrNvReadable settings) throws rrNvReadable.missingReqdSetting {
//fSettings = settings;
final Properties props = new Properties();
/*transferSetting(fSettings, props, "metadata.broker.list", "localhost:9092");
transferSetting(fSettings, props, "request.required.acks", "1");
transferSetting(fSettings, props, "message.send.max.retries", "5");
transferSetting(fSettings, props, "retry.backoff.ms", "150"); */
String kafkaConnUrl= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka.metadata.broker.list");
if(null==kafkaConnUrl){
kafkaConnUrl="localhost:9092";
}
// props.put("bootstrap.servers", bootSever);
//System.setProperty("java.security.auth.login.config",jaaspath);
transferSetting( props, "bootstrap.servers",kafkaConnUrl);
transferSetting( props, "request.required.acks", "1");
transferSetting( props, "message.send.max.retries", "5");
transferSetting(props, "retry.backoff.ms", "150");
props.put("key.serializer", "org.apache.kafka.common.serialization.StringSerializer");
props.put("value.serializer", "org.apache.kafka.common.serialization.StringSerializer");
//fProducer = new Producer<String, String>(fConfig);
fProducer = new KafkaProducer<>(props);
}
/**
* Send a message with a given topic and key.
*
* @param msg
* @throws FailedToSendMessageException
* @throws JSONException
*/
@Override
public void sendMessage(String topic, message msg) throws IOException{
final List<message> msgs = new LinkedList<message>();
msgs.add(msg);
sendMessages(topic, msgs);
}
/**
* method publishing batch messages
* This method is commented from 0.8 to 0.11 upgrade
* @param topic
* @param kms
* throws IOException
*
public void sendBatchMessage(String topic, ArrayList<KeyedMessage<String, String>> kms) throws IOException {
try {
fProducer.send(kms);
} catch (FailedToSendMessageException excp) {
log.error("Failed to send message(s) to topic [" + topic + "].", excp);
throw new FailedToSendMessageException(excp.getMessage(), excp);
}
} */
/*
* Kafka 11.0 Interface
* @see com.att.nsa.cambria.backends.Publisher#sendBatchMessageNew(java.lang.String, java.util.ArrayList)
*/
public void sendBatchMessageNew(String topic, ArrayList <ProducerRecord<String,String>> kms) throws IOException {
try {
for (ProducerRecord<String,String> km : kms) {
fProducer.send(km);
}
} catch (Exception excp) {
log.error("Failed to send message(s) to topic [" + topic + "].", excp);
throw new IOException(excp.getMessage(), excp);
}
}
/**
* Send a set of messages. Each must have a "key" string value.
*
* @param topic
* @param msg
* @throws FailedToSendMessageException
* @throws JSONException
*
@Override
public void sendMessages(String topic, List<? extends message> msgs)
throws IOException, FailedToSendMessageException {
log.info("sending " + msgs.size() + " events to [" + topic + "]");
final List<KeyedMessage<String, String>> kms = new ArrayList<KeyedMessage<String, String>>(msgs.size());
for (message o : msgs) {
final KeyedMessage<String, String> data = new KeyedMessage<String, String>(topic, o.getKey(), o.toString());
kms.add(data);
}
try {
fProducer.send(kms);
} catch (FailedToSendMessageException excp) {
log.error("Failed to send message(s) to topic [" + topic + "].", excp);
throw new FailedToSendMessageException(excp.getMessage(), excp);
}
} */
@Override
public void sendMessagesNew(String topic, List<? extends message> msgs)
throws IOException {
log.info("sending " + msgs.size() + " events to [" + topic + "]");
try{
final List<ProducerRecord<String, String>> kms = new ArrayList<ProducerRecord<String, String>>(msgs.size());
for (message o : msgs) {
final ProducerRecord<String, String> data = new ProducerRecord<String, String>(topic, o.getKey(), o.toString());
try {
fProducer.send(data);
} catch (Exception excp) {
log.error("Failed to send message(s) to topic [" + topic + "].", excp);
throw new Exception(excp.getMessage(), excp);
}
}
}catch(Exception e){}
}
//private final rrNvReadable fSettings;
private Producer<String, String> fProducer;
/**
* It sets the key value pair
* @param topic
* @param msg
* @param key
* @param defVal
*/
private void transferSetting(Properties props, String key, String defVal) {
String kafka_prop= com.att.ajsc.filemonitor.AJSCPropertiesMap.getProperty(CambriaConstants.msgRtr_prop,"kafka." + key);
if (null==kafka_prop) kafka_prop=defVal;
//props.put(key, settings.getString("kafka." + key, defVal));
props.put(key, kafka_prop);
}
//private static final Logger log = LoggerFactory.getLogger(KafkaPublisher.class);
private static final EELFLogger log = EELFManager.getInstance().getLogger(KafkaPublisher.class);
@Override
public void sendMessages(String topic, List<? extends message> msgs) throws IOException {
// TODO Auto-generated method stub
}
}
|