Examples with NullWritable org.apache.hadoop.io.NullWritable used on opensource projects

Example 61 with NullWritable

use of org.apache.hadoop.io.NullWritable in project camel by apache.

the class HdfsConsumerTest method testReadFloat.

@Test
public void testReadFloat() throws Exception {
    if (!canTest()) {
        return;
    }
    final Path file = new Path(new File("target/test/test-camel-float").getAbsolutePath());
    Configuration conf = new Configuration();
    FileSystem fs1 = FileSystem.get(file.toUri(), conf);
    SequenceFile.Writer writer = createWriter(fs1, conf, file, NullWritable.class, FloatWritable.class);
    NullWritable keyWritable = NullWritable.get();
    FloatWritable valueWritable = new FloatWritable();
    float value = 3.1415926535f;
    valueWritable.set(value);
    writer.append(keyWritable, valueWritable);
    writer.sync();
    writer.close();
    MockEndpoint resultEndpoint = context.getEndpoint("mock:result", MockEndpoint.class);
    resultEndpoint.expectedMessageCount(1);
    context.addRoutes(new RouteBuilder() {

        public void configure() {
            from("hdfs:localhost/" + file.toUri() + "?fileSystemType=LOCAL&fileType=SEQUENCE_FILE&initialDelay=0").to("mock:result");
        }
    });
    context.start();
    resultEndpoint.assertIsSatisfied();
}

Example 62 with NullWritable

use of org.apache.hadoop.io.NullWritable in project camel by apache.

the class HdfsConsumerTest method testReadString.

@Test
public void testReadString() throws Exception {
    if (!canTest()) {
        return;
    }
    final Path file = new Path(new File("target/test/test-camel-string").getAbsolutePath());
    Configuration conf = new Configuration();
    FileSystem fs1 = FileSystem.get(file.toUri(), conf);
    SequenceFile.Writer writer = createWriter(fs1, conf, file, NullWritable.class, Text.class);
    NullWritable keyWritable = NullWritable.get();
    Text valueWritable = new Text();
    String value = "CIAO!";
    valueWritable.set(value);
    writer.append(keyWritable, valueWritable);
    writer.sync();
    writer.close();
    MockEndpoint resultEndpoint = context.getEndpoint("mock:result", MockEndpoint.class);
    resultEndpoint.expectedMessageCount(1);
    context.addRoutes(new RouteBuilder() {

        public void configure() {
            from("hdfs:localhost/" + file.toUri() + "?fileSystemType=LOCAL&fileType=SEQUENCE_FILE&initialDelay=0").to("mock:result");
        }
    });
    context.start();
    resultEndpoint.assertIsSatisfied();
}

Example 63 with NullWritable

use of org.apache.hadoop.io.NullWritable in project camel by apache.

the class HdfsConsumerTest method testReadByte.

@Test
public void testReadByte() throws Exception {
    if (!canTest()) {
        return;
    }
    final Path file = new Path(new File("target/test/test-camel-byte").getAbsolutePath());
    Configuration conf = new Configuration();
    FileSystem fs1 = FileSystem.get(file.toUri(), conf);
    SequenceFile.Writer writer = createWriter(fs1, conf, file, NullWritable.class, ByteWritable.class);
    NullWritable keyWritable = NullWritable.get();
    ByteWritable valueWritable = new ByteWritable();
    byte value = 3;
    valueWritable.set(value);
    writer.append(keyWritable, valueWritable);
    writer.sync();
    writer.close();
    MockEndpoint resultEndpoint = context.getEndpoint("mock:result", MockEndpoint.class);
    resultEndpoint.expectedMessageCount(1);
    resultEndpoint.message(0).body(byte.class).isEqualTo(3);
    context.addRoutes(new RouteBuilder() {

        public void configure() {
            from("hdfs:localhost/" + file.toUri() + "?fileSystemType=LOCAL&fileType=SEQUENCE_FILE&initialDelay=0").to("mock:result");
        }
    });
    context.start();
    resultEndpoint.assertIsSatisfied();
}

Example 64 with NullWritable

use of org.apache.hadoop.io.NullWritable in project camel by apache.

the class HdfsConsumerTest method testReadWithReadSuffix.

@Test
public void testReadWithReadSuffix() throws Exception {
    if (!canTest()) {
        return;
    }
    String[] beforeFiles = new File("target/test").list();
    int before = beforeFiles != null ? beforeFiles.length : 0;
    final Path file = new Path(new File("target/test/test-camel-boolean").getAbsolutePath());
    Configuration conf = new Configuration();
    FileSystem fs1 = FileSystem.get(file.toUri(), conf);
    SequenceFile.Writer writer = createWriter(fs1, conf, file, NullWritable.class, BooleanWritable.class);
    NullWritable keyWritable = NullWritable.get();
    BooleanWritable valueWritable = new BooleanWritable();
    valueWritable.set(true);
    writer.append(keyWritable, valueWritable);
    writer.sync();
    writer.close();
    context.addRoutes(new RouteBuilder() {

        public void configure() {
            from("hdfs:localhost/" + file.getParent().toUri() + "?scheduler=#myScheduler&pattern=*&fileSystemType=LOCAL&fileType=SEQUENCE_FILE&initialDelay=0&readSuffix=handled").to("mock:result");
        }
    });
    ScheduledExecutorService pool = context.getExecutorServiceManager().newScheduledThreadPool(null, "unitTestPool", 1);
    DefaultScheduledPollConsumerScheduler scheduler = new DefaultScheduledPollConsumerScheduler(pool);
    ((JndiRegistry) ((PropertyPlaceholderDelegateRegistry) context.getRegistry()).getRegistry()).bind("myScheduler", scheduler);
    context.start();
    MockEndpoint resultEndpoint = context.getEndpoint("mock:result", MockEndpoint.class);
    resultEndpoint.expectedMessageCount(1);
    resultEndpoint.assertIsSatisfied();
    // synchronize on pool that was used to run hdfs consumer thread
    scheduler.getScheduledExecutorService().shutdown();
    scheduler.getScheduledExecutorService().awaitTermination(5000, TimeUnit.MILLISECONDS);
    Set<String> files = new HashSet<String>(Arrays.asList(new File("target/test").list()));
    // there may be some leftover files before, so test that we only added 2 new files
    assertThat(files.size() - before, equalTo(2));
    assertTrue(files.remove("test-camel-boolean.handled"));
    assertTrue(files.remove(".test-camel-boolean.handled.crc"));
}

Example 65 with NullWritable

use of org.apache.hadoop.io.NullWritable in project camel by apache.

the class HdfsConsumerTest method testReadByte.

@Test
public void testReadByte() throws Exception {
    if (!canTest()) {
        return;
    }
    final Path file = new Path(new File("target/test/test-camel-byte").getAbsolutePath());
    Configuration conf = new Configuration();
    SequenceFile.Writer writer = createWriter(conf, file, NullWritable.class, ByteWritable.class);
    NullWritable keyWritable = NullWritable.get();
    ByteWritable valueWritable = new ByteWritable();
    byte value = 3;
    valueWritable.set(value);
    writer.append(keyWritable, valueWritable);
    writer.sync();
    writer.close();
    MockEndpoint resultEndpoint = context.getEndpoint("mock:result", MockEndpoint.class);
    resultEndpoint.expectedMessageCount(1);
    resultEndpoint.message(0).body(byte.class).isEqualTo(3);
    context.addRoutes(new RouteBuilder() {

        public void configure() {
            from("hdfs2:localhost/" + file.toUri() + "?fileSystemType=LOCAL&fileType=SEQUENCE_FILE&initialDelay=0").to("mock:result");
        }
    });
    context.start();
    resultEndpoint.assertIsSatisfied();
}