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
|
/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2016-2018 Ericsson. All rights reserved.
* Modifications Copyright (C) 2019-2020 Nordix Foundation.
* Modifications Copyright (C) 2021 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.apex.testsuites.integration.uservice.adapt.kafka;
import com.salesforce.kafka.test.junit4.SharedKafkaTestResource;
import java.time.Duration;
import lombok.Getter;
import org.apache.kafka.clients.producer.Producer;
import org.apache.kafka.clients.producer.ProducerRecord;
import org.apache.kafka.common.serialization.StringSerializer;
import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
import org.onap.policy.apex.testsuites.integration.uservice.adapt.events.EventGenerator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The Class KafkaEventProducer.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public class KafkaEventProducer implements Runnable {
// Get a reference to the logger
private static final Logger LOGGER = LoggerFactory.getLogger(KafkaEventProducer.class);
private final String topic;
private final SharedKafkaTestResource sharedKafkaTestResource;
private final int eventCount;
private final boolean xmlEvents;
private final long eventInterval;
@Getter
private long eventsSentCount = 0;
private final Thread producerThread;
private boolean sendEventsFlag = false;
private volatile boolean stopFlag = false;
/**
* Instantiates a new kafka event producer.
*
* @param topic the topic
* @param sharedKafkaTestResource the kafka server address
* @param eventCount the event count
* @param xmlEvents the xml events
* @param eventInterval the event interval
*/
public KafkaEventProducer(final String topic, final SharedKafkaTestResource sharedKafkaTestResource,
final int eventCount, final boolean xmlEvents, final long eventInterval) {
this.topic = topic;
this.sharedKafkaTestResource = sharedKafkaTestResource;
this.eventCount = eventCount;
this.xmlEvents = xmlEvents;
this.eventInterval = eventInterval;
producerThread = new Thread(this);
producerThread.start();
}
/**
* {@inheritDoc}.
*/
@Override
public void run() {
final Producer<String, String> producer = sharedKafkaTestResource.getKafkaTestUtils()
.getKafkaProducer(StringSerializer.class, StringSerializer.class);
while (producerThread.isAlive() && !stopFlag) {
ThreadUtilities.sleep(50);
if (sendEventsFlag) {
sendEventsToTopic(producer);
sendEventsFlag = false;
}
}
producer.close(Duration.ofMillis(1000));
}
/**
* Send events.
*/
public void sendEvents() {
sendEventsFlag = true;
}
/**
* Send events to topic.
*
* @param producer the producer
*/
private void sendEventsToTopic(final Producer<String, String> producer) {
LOGGER.debug("{} : sending events to Kafka server, event count {}, xmlEvents {}",
KafkaEventProducer.class.getName(), eventCount, xmlEvents);
for (int i = 0; i < eventCount; i++) {
LOGGER.debug("{} : waiting {} milliseconds before sending next event", KafkaEventProducer.class.getName(),
eventInterval);
ThreadUtilities.sleep(eventInterval);
String eventString = null;
if (xmlEvents) {
eventString = EventGenerator.xmlEvent();
} else {
eventString = EventGenerator.jsonEvent();
}
producer.send(new ProducerRecord<String, String>(topic, "Event" + i + "Of" + eventCount, eventString));
producer.flush();
eventsSentCount++;
LOGGER.debug("****** Sent event No. {} ******\n{}", eventsSentCount, eventString);
}
LOGGER.debug("{}: completed", KafkaEventProducer.class.getName());
}
/**
* Shutdown.
*/
public void shutdown() {
LOGGER.debug("{} : stopping", KafkaEventProducer.class.getName());
stopFlag = true;
while (producerThread.isAlive()) {
ThreadUtilities.sleep(10);
}
LOGGER.debug("{} : stopped", KafkaEventProducer.class.getName());
}
public boolean isAlive() {
return producerThread.isAlive();
}
}
|
