Examples of ConsumerConnector

Examples of kafka.javaapi.consumer.ConsumerConnector

111
112
113
114
115
116
117
118
119
120
121
122
        curator.start();

        RebalanceListener listener = null;
        for (int i = 0; i < 5; i++) {
            System.out.format("%nCreating consumer #%d%n", i + 1);
            ConsumerConnector connector = Consumer.createJavaConsumerConnector(config);
            connector.createMessageStreams(Collections.singletonMap("mytopic", 1));
            if (i == 0) {
                PathChildrenCache cache = new PathChildrenCache(curator, "/consumers/foo/owners/mytopic", true);
                listener = new RebalanceListener(5);
                cache.getListenable().addListener(listener);
                cache.start(PathChildrenCache.StartMode.POST_INITIALIZED_EVENT);
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
        assertTrue(sink.getNumOfPendingMessages() > 0);
        sink.close();
        System.out.println(sink.getStat());
        assertEquals(sink.getNumOfPendingMessages(), 0);

        ConsumerConnector consumer = kafka.consumer.Consumer.createJavaConsumerConnector(
                createConsumerConfig("localhost:" + zk.getServerPort(), "gropuid_multhread"));
        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
        topicCountMap.put(TOPIC_NAME_MULTITHREAD, 1);
        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap = consumer.createMessageStreams(topicCountMap);
        KafkaStream<byte[], byte[]> stream = consumerMap.get(TOPIC_NAME_MULTITHREAD).get(0);
        for (int i = 0; i < msgCount; ++i) {
            stream.iterator().next();
        }

        try {
            stream.iterator().next();
            fail();
        } catch (ConsumerTimeoutException e) {
            //this is expected
            consumer.shutdown();
        }
    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

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
230
231
232
233
234
235
236
                    jsonMapper));
        }
        sink.close();
        System.out.println(sink.getStat());

        ConsumerConnector consumer = kafka.consumer.Consumer.createJavaConsumerConnector(
                createConsumerConfig("localhost:" + zk.getServerPort(), "gropuid"));
        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
        topicCountMap.put(TOPIC_NAME_PARTITION_BY_KEY, 1);
        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap = consumer.createMessageStreams(topicCountMap);
        KafkaStream<byte[], byte[]> stream = consumerMap.get(TOPIC_NAME_PARTITION_BY_KEY).get(0);
        Map<Integer, Set<Map<String, Object>>> resultSet = new HashMap<Integer, Set<Map<String, Object>>>();
        for (int i = 0; i < messageCount; ++i) {
            MessageAndMetadata<byte[], byte[]> msgAndMeta = stream.iterator().next();
            System.out.println(new String(msgAndMeta.message()));

            Map<String, Object> msg = jsonMapper.readValue(new String(msgAndMeta.message()), new TypeReference<Map<String, Object>>() {});
            Set<Map<String, Object>> s = resultSet.get(msgAndMeta.partition());
            if (s == null) {
                s = new HashSet<Map<String, Object>>();
                resultSet.put(msgAndMeta.partition(), s);
            }
            s.add(msg);
        }

        int sizeSum = 0;
        for (Map.Entry<Integer, Set<Map<String, Object>>> e : resultSet.entrySet()) {
            sizeSum += e.getValue().size();
            String key = (String) e.getValue().iterator().next().get("key");
            for (Map<String, Object> ss : e.getValue()) {
                assertEquals(key, (String) ss.get("key"));
            }
        }
        assertEquals(sizeSum, messageCount);

        try {
            stream.iterator().next();
            fail();
        } catch (ConsumerTimeoutException e) {
            //this is expected
            consumer.shutdown();
        }
    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
        assertTrue(sink.getNumOfPendingMessages() > 0);
        sink.close();
        System.out.println(sink.getStat());
        assertEquals(sink.getNumOfPendingMessages(), 0);

        ConsumerConnector consumer = kafka.consumer.Consumer.createJavaConsumerConnector(
                createConsumerConfig("localhost:" + zk.getServerPort(), "gropuid_multhread"));
        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
        topicCountMap.put(TOPIC_NAME_MULTITHREAD, 1);
        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap = consumer.createMessageStreams(topicCountMap);
        KafkaStream<byte[], byte[]> stream = consumerMap.get(TOPIC_NAME_MULTITHREAD).get(0);
        for (int i = 0; i < msgCount; ++i) {
            stream.iterator().next();
        }

        try {
            stream.iterator().next();
            fail();
        } catch (ConsumerTimeoutException e) {
            //this is expected
            consumer.shutdown();
        }
    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
        }
        sink.close();
        System.out.println(sink.getStat());

        // read data back from Kafka
        ConsumerConnector consumer = kafka.consumer.Consumer.createJavaConsumerConnector(
                createConsumerConfig("localhost:" + zk.getServerPort(), "gropuid"));
        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
        topicCountMap.put(TOPIC_NAME_PARTITION_BY_KEY, 1);
        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap = consumer.createMessageStreams(topicCountMap);
        KafkaStream<byte[], byte[]> stream = consumerMap.get(TOPIC_NAME_PARTITION_BY_KEY).get(0);
        Map<Integer, Set<Map<String, Object>>> resultSet = new HashMap<Integer, Set<Map<String, Object>>>();
        for (int i = 0; i < messageCount; ++i) {
            MessageAndMetadata<byte[], byte[]> msgAndMeta = stream.iterator().next();
            System.out.println(new String(msgAndMeta.message()));

            Map<String, Object> msg = jsonMapper.readValue(new String(msgAndMeta.message()), new TypeReference<Map<String, Object>>() {});
            Set<Map<String, Object>> s = resultSet.get(msgAndMeta.partition());
            if (s == null) {
                s = new HashSet<Map<String, Object>>();
                resultSet.put(msgAndMeta.partition(), s);
            }
            s.add(msg);
        }

        // verify we received what was sent
        int sizeSum = 0;
        for (Map.Entry<Integer, Set<Map<String, Object>>> e : resultSet.entrySet()) {
            sizeSum += e.getValue().size();
            String key = (String) e.getValue().iterator().next().get("key");
            for (Map<String, Object> ss : e.getValue()) {
                assertEquals(key, (String) ss.get("key"));
            }
        }
        assertEquals(sizeSum, messageCount);

        try {
            stream.iterator().next();
            fail();
        } catch (ConsumerTimeoutException e) {
            //this is expected
            consumer.shutdown();
        }
    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
        List<Sink> sinks = new ArrayList<Sink>();
        sinks.add(sinkV1);
        sinks.add(sinkV2);

        // setup Kafka consumer (to read back messages)
        ConsumerConnector consumer = kafka.consumer.Consumer.createJavaConsumerConnector(
            createConsumerConfig("localhost:" + zk.getServerPort(), "gropuid"));
        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
        topicCountMap.put(TOPIC_NAME_BACKWARD_COMPAT, 1);
        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap =
                                                consumer.createMessageStreams(topicCountMap);
        KafkaStream<byte[], byte[]> stream = consumerMap.get(TOPIC_NAME_BACKWARD_COMPAT).get(0);

        // Send 20 test message, using the old and new Kafka sinks.
        // Retrieve the messages and ensure that they are identical and sent to the same partition.
        Random rand = new Random();
        int messageCount = 20;
        for (int i = 0; i < messageCount; ++i) {
            Map<String, Object> msgMap = new ImmutableMap.Builder<String, Object>()
                    .put("key", new Long( rand.nextLong() ) )
                    .put("value", "message:" + i).build();

            // send message to both sinks
            for( Sink sink : sinks ){
              sink.writeTo(new DefaultMessageContainer(
                    new Message(TOPIC_NAME_BACKWARD_COMPAT, jsonMapper.writeValueAsBytes(msgMap)),
                    jsonMapper));
            }

            // read two copies of message back from Kafka and check that partitions and data match
            MessageAndMetadata<byte[], byte[]> msgAndMeta1 = stream.iterator().next();
            MessageAndMetadata<byte[], byte[]> msgAndMeta2 = stream.iterator().next();
            System.out.println( "iteration: "+i+" partition1: "+msgAndMeta1.partition() );
            System.out.println( "iteration: "+i+" partition2: "+msgAndMeta2.partition() );
            assertEquals( msgAndMeta1.partition(), msgAndMeta2.partition() );
            String msg1Str = new String( msgAndMeta1.message() );
            String msg2Str = new String( msgAndMeta2.message() );
            System.out.println( "iteration: "+i+" message1: "+msg1Str );
            System.out.println( "iteration: "+i+" message2: "+msg2Str );
            assertEquals( msg1Str, msg2Str );
        }

        // close sinks
        sinkV1.close();
        sinkV2.close();
        // close consumer
        try {
            stream.iterator().next();
            fail(); // there should be no data left to consume
        } catch (ConsumerTimeoutException e) {
            //this is expected
            consumer.shutdown();
        }
    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

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
        }
        System.out.println("SUCCESS -- WE ARE HAPPY !...");
    }

    private void consumeMessages() {
        final ConsumerConnector   consumer =
                kafka.consumer.Consumer.createJavaConsumerConnector(createConsumerConfig());
        final Map<String, Integer> topicCountMap = ImmutableMap.of(topic, 1);
        final Map<String, List<KafkaStream<String>>> consumerMap;
        consumerMap = consumer.createMessageStreams(topicCountMap, new StringDecoder());

        final KafkaStream<String> stream = consumerMap.get(topic).get(0);
        final ConsumerIterator<String> iterator = stream.iterator();

        kafkaMessageReceiverThread = new Thread(
                new Runnable() {
                    @Override
                    public void run() {
                        while (iterator.hasNext()) {
                            String msg = iterator.next().message();
                            msg = msg == null ? "<null>" : msg;
                            System.out.println("got message" + msg);
                            if (msg.equals("SHUTDOWN")) {
                                consumer.shutdown();
                                return;
                            }
                            messagesReceived.add(msg);
                        }
                    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

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
    public List<String> consumeMessages() {
        String ttt = topic;
        System.out.println("topic in kafka consumer: " + topic);
        try {
            final ConsumerConnector consumer =
                    kafka.consumer.Consumer.createJavaConsumerConnector(createConsumerConfig());
            final Map<String, Integer> topicCountMap = ImmutableMap.of(topic, 1);
            final Map<String, List<KafkaStream<String,String>>> consumerMap;

            StringDecoder decoder = new StringDecoder(new VerifiableProperties());
            consumerMap = consumer.createMessageStreams(topicCountMap, decoder,  decoder);

            final KafkaStream<String,String> stream = consumerMap.get(topic).get(0);
            final ConsumerIterator<String,String> iterator = stream.iterator();
            while (iterator.hasNext()) {
                String msg = iterator.next().message();
                msg =  ( msg == null ? "<null>" : msg );
                System.out.println("got message" + msg);
                messagesReceived.add(msg);
                if (msg.contains("SHUTDOWN")) {
                    consumer.shutdown();
                    return messagesReceived;
                }
            }
        } catch (Exception e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

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
        }
        System.out.println("SUCCESS -- WE ARE HAPPY !...");
    }

    private void consumeMessages() {
        final ConsumerConnector   consumer =
                kafka.consumer.Consumer.createJavaConsumerConnector(createConsumerConfig());
        final Map<String, Integer> topicCountMap =
                ImmutableMap.of(topic, 1);
        final StringDecoder decoder =
                new StringDecoder(new VerifiableProperties());
        final Map<String, List<KafkaStream<String,String>>>  consumerMap =
                consumer.createMessageStreams(topicCountMap, decoder,  decoder);
        final KafkaStream<String,String> stream =
                consumerMap.get(topic).get(0);
        final ConsumerIterator<String,String> iterator = stream.iterator();

        kafkaMessageReceiverThread = new Thread(
                new Runnable() {
                    @Override
                    public void run() {
                        while (iterator.hasNext()) {
                            String msg = iterator.next().message();
                            msg = msg == null ? "<null>" : msg;
                            System.out.println("got message" + msg);
                            if (msg.equals("SHUTDOWN")) {
                                consumer.shutdown();
                                return;
                            }
                            messagesReceived.add(msg);
                        }
                    }
View Full Code Here

Examples of kafka.javaapi.consumer.ConsumerConnector

52
53
54
55
56
57
58
59
60
61
62
        kafkaReporter.report();
    }

    @Then("Kafka consumer should be able to read this data.")
    public void consumerReadsMetrics() throws IOException {
        ConsumerConnector consumer = Consumer.createJavaConsumerConnector(createConsumerConfig());
        String message = readMessage(consumer);
        assertNotNull(message);
        ObjectMapper objectMapper = new ObjectMapper();
        KafkaMetricsReport report = objectMapper.readValue(message, KafkaMetricsReport.class);
        assertNotNull(report);
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.