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18 package org.apache.logging.log4j.core.appender.mom.kafka;
19
20 import java.util.Properties;
21 import java.util.concurrent.ExecutionException;
22 import java.util.concurrent.TimeUnit;
23 import java.util.concurrent.TimeoutException;
24
25 import org.apache.kafka.clients.producer.Producer;
26 import org.apache.kafka.clients.producer.ProducerRecord;
27 import org.apache.logging.log4j.core.appender.AbstractManager;
28 import org.apache.logging.log4j.core.config.Property;
29 import org.apache.logging.log4j.core.util.Log4jThread;
30
31 public class KafkaManager extends AbstractManager {
32
33 public static final String DEFAULT_TIMEOUT_MILLIS = "30000";
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38 static KafkaProducerFactory producerFactory = new DefaultKafkaProducerFactory();
39
40 private final Properties config = new Properties();
41 private Producer<byte[], byte[]> producer = null;
42 private final int timeoutMillis;
43
44 private final String topic;
45
46 public KafkaManager(final String name, final String topic, final Property[] properties) {
47 super(name);
48 this.topic = topic;
49 config.setProperty("key.serializer", "org.apache.kafka.common.serialization.ByteArraySerializer");
50 config.setProperty("value.serializer", "org.apache.kafka.common.serialization.ByteArraySerializer");
51 config.setProperty("batch.size", "0");
52 for (final Property property : properties) {
53 config.setProperty(property.getName(), property.getValue());
54 }
55 this.timeoutMillis = Integer.parseInt(config.getProperty("timeout.ms", DEFAULT_TIMEOUT_MILLIS));
56 }
57
58 @Override
59 public void releaseSub() {
60 if (producer != null) {
61
62 final Thread closeThread = new Log4jThread(new Runnable() {
63 @Override
64 public void run() {
65 producer.close();
66 }
67 });
68 closeThread.setName("KafkaManager-CloseThread");
69 closeThread.setDaemon(true);
70 closeThread.start();
71 try {
72 closeThread.join(timeoutMillis);
73 } catch (final InterruptedException ignore) {
74
75 }
76 }
77 }
78
79 public void send(final byte[] msg) throws ExecutionException, InterruptedException, TimeoutException {
80 if (producer != null) {
81 producer.send(new ProducerRecord<byte[], byte[]>(topic, msg)).get(timeoutMillis, TimeUnit.MILLISECONDS);
82 }
83 }
84
85 public void startup() {
86 producer = producerFactory.newKafkaProducer(config);
87 }
88
89 }