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

Example 1 with Writable

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

the class HdfsProducerTest method testProducerClose.

@Test
public void testProducerClose() throws Exception {
    if (!canTest()) {
        return;
    }
    for (int i = 0; i < 10; ++i) {
        // send 10 messages, and mark to close in last message
        template.sendBodyAndHeader("direct:start1", "PAPPO" + i, HdfsConstants.HDFS_CLOSE, i == 9 ? true : false);
    }
    Configuration conf = new Configuration();
    Path file1 = new Path("file:///" + TEMP_DIR.toUri() + "/test-camel1");
    FileSystem fs1 = FileSystem.get(file1.toUri(), conf);
    SequenceFile.Reader reader = new SequenceFile.Reader(fs1, file1, conf);
    Writable key = (Writable) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
    Writable value = (Writable) ReflectionUtils.newInstance(reader.getValueClass(), conf);
    int i = 0;
    while (reader.next(key, value)) {
        Text txt = (Text) value;
        assertEquals("PAPPO" + i, txt.toString());
        ++i;
    }
    IOHelper.close(reader);
}

Example 2 with Writable

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

the class HdfsProducerTest method testProducer.

@Test
public void testProducer() throws Exception {
    if (!canTest()) {
        return;
    }
    template.sendBody("direct:start1", "PAPPO");
    Configuration conf = new Configuration();
    Path file1 = new Path("file:///" + TEMP_DIR.toUri() + "/test-camel1");
    FileSystem fs1 = FileSystem.get(file1.toUri(), conf);
    SequenceFile.Reader reader = new SequenceFile.Reader(fs1, file1, conf);
    Writable key = (Writable) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
    Writable value = (Writable) ReflectionUtils.newInstance(reader.getValueClass(), conf);
    reader.next(key, value);
    assertEquals("PAPPO", value.toString());
    IOHelper.close(reader);
}

Example 3 with Writable

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

the class HdfsProducerTest method testWriteLong.

@Test
public void testWriteLong() throws Exception {
    if (!canTest()) {
        return;
    }
    long aLong = 1234567890;
    template.sendBody("direct:write_long", aLong);
    Configuration conf = new Configuration();
    Path file1 = new Path("file:///" + TEMP_DIR.toUri() + "/test-camel-long");
    FileSystem fs1 = FileSystem.get(file1.toUri(), conf);
    SequenceFile.Reader reader = new SequenceFile.Reader(fs1, file1, conf);
    Writable key = (Writable) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
    Writable value = (Writable) ReflectionUtils.newInstance(reader.getValueClass(), conf);
    reader.next(key, value);
    long rLong = ((LongWritable) value).get();
    assertEquals(rLong, aLong);
    IOHelper.close(reader);
}

Example 4 with Writable

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

the class HdfsProducerTest method testWriteFloat.

@Test
public void testWriteFloat() throws Exception {
    if (!canTest()) {
        return;
    }
    float aFloat = 12.34f;
    template.sendBody("direct:write_float", aFloat);
    Configuration conf = new Configuration();
    Path file1 = new Path("file:///" + TEMP_DIR.toUri() + "/test-camel-float");
    FileSystem fs1 = FileSystem.get(file1.toUri(), conf);
    SequenceFile.Reader reader = new SequenceFile.Reader(fs1, file1, conf);
    Writable key = (Writable) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
    Writable value = (Writable) ReflectionUtils.newInstance(reader.getValueClass(), conf);
    reader.next(key, value);
    float rFloat = ((FloatWritable) value).get();
    assertEquals(rFloat, aFloat, 0.0F);
    IOHelper.close(reader);
}

Example 5 with Writable

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

the class HdfsProducerTest method testWriteLong.

@Test
public void testWriteLong() throws Exception {
    if (!canTest()) {
        return;
    }
    long aLong = 1234567890;
    template.sendBody("direct:write_long", aLong);
    Configuration conf = new Configuration();
    Path file1 = new Path("file:///" + TEMP_DIR.toUri() + "/test-camel-long");
    SequenceFile.Reader reader = new SequenceFile.Reader(conf, SequenceFile.Reader.file(file1));
    Writable key = (Writable) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
    Writable value = (Writable) ReflectionUtils.newInstance(reader.getValueClass(), conf);
    reader.next(key, value);
    long rLong = ((LongWritable) value).get();
    assertEquals(rLong, aLong);
    IOHelper.close(reader);
}