Example usage for org.apache.hadoop.io BooleanWritable BooleanWritable

Introduction

In this page you can find the example usage for org.apache.hadoop.io BooleanWritable BooleanWritable.

Prototype

public BooleanWritable()

Source Link

Usage

From source file:org.apache.pig.impl.io.NullableBooleanWritable.java

License:Apache License

public NullableBooleanWritable() {
    mValue = new BooleanWritable();
}

From source file:org.bgi.flexlab.gaea.data.mapreduce.writable.DuplicationKeyWritable.java

License:Open Source License

public DuplicationKeyWritable() {
    LB = new Text();
    chrIndex = new IntWritable();
    position = new IntWritable();
    forward = new BooleanWritable();
}

From source file:org.openflamingo.mapreduce.aggregator.BooleanAndAggregator.java

License:Apache License

@Override
public BooleanWritable createAggregatedValue() {
    return new BooleanWritable();
}

From source file:org.pentaho.hadoop.mapreduce.converter.converters.KettleTypeToBooleanWritableConverter.java

License:Apache License

@Override
public BooleanWritable convert(ValueMetaInterface meta, Object obj) throws TypeConversionException {
    try {//from w  w  w. jav  a2 s .c  o  m
        BooleanWritable result = new BooleanWritable();
        result.set(meta.getBoolean(obj));
        return result;
    } catch (Exception ex) {
        throw new TypeConversionException(BaseMessages.getString(TypeConverterFactory.class, "ErrorConverting",
                BooleanWritable.class.getSimpleName(), obj), ex);
    }
}

From source file:org.shaf.core.util.IOUtils.java

License:Apache License

/**
 * Reads an {@link Object} of the specified type from the {@link DataInput}.
 * /*from w w w  .  j a v  a 2 s  . co  m*/
 * @param cls
 *            the type of the reading object.
 * @param in
 *            the data input stream.
 * @return the read object.
 * @throws IOException
 *             if I/O error occurs.
 */
public static final Object readObject(Class<?> cls, DataInput in) throws IOException {
    try {
        if (cls == null) {
            throw new IOException("Reading class is not defined: null.");
        } else if (ClassUtils.isBoolean(cls)) {
            BooleanWritable obj = new BooleanWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isByte(cls)) {
            ByteWritable obj = new ByteWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isShort(cls)) {
            ShortWritable obj = new ShortWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isInteger(cls)) {
            IntWritable obj = new IntWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isLong(cls)) {
            LongWritable obj = new LongWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isFloat(cls)) {
            FloatWritable obj = new FloatWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isDouble(cls)) {
            DoubleWritable obj = new DoubleWritable();
            obj.readFields(in);
            return obj.get();
        } else if (ClassUtils.isString(cls)) {
            return Text.readString(in);
        } else if (ClassUtils.isEnum(cls)) {
            IntWritable obj = new IntWritable();
            obj.readFields(in);
            return cls.getEnumConstants()[obj.get()];
        } else if (ClassUtils.isArray(cls)) {
            int length = (int) readObject(int.class, in);
            Object array = Array.newInstance(cls.getComponentType(), length);
            for (int j = 0; j < length; j++) {
                Object a = readObject(cls.getComponentType(), in);
                Array.set(array, j, a);
            }
            return array;
        } else {
            Object obj = cls.newInstance();
            ((Writable) obj).readFields(in);
            return obj;
        }
    } catch (IllegalArgumentException | InstantiationException | IllegalAccessException exc) {
        throw new IOException(exc);
    }
}

From source file:org.shaf.core.util.IOUtilsTest.java

License:Apache License

/**
 * Test writing of {@code boolean} value.
 *//* w w w . ja  v  a 2s.  c om*/
@Test
public void testWriteBoolean() {
    byte[] buf = null;

    // Tests write for boolean "false".
    boolean value = false;
    try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
            DataOutputStream out = new DataOutputStream(baos);) {
        IOUtils.writeObject(value, out);
        buf = baos.toByteArray();
    } catch (IOException exc) {
        fail(exc.getMessage());
    }

    try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
            DataInputStream in = new DataInputStream(bais);) {
        BooleanWritable probe = new BooleanWritable();
        probe.readFields(in);
        assertFalse(probe.get());
    } catch (IOException exc) {
        fail(exc.getMessage());
    }

    // Tests write for boolean "true".
    value = true;
    try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
            DataOutputStream out = new DataOutputStream(baos);) {
        IOUtils.writeObject(value, out);
        buf = baos.toByteArray();
    } catch (IOException exc) {
        fail(exc.getMessage());
    }

    try (ByteArrayInputStream bais = new ByteArrayInputStream(buf);
            DataInputStream in = new DataInputStream(bais);) {
        BooleanWritable probe = new BooleanWritable();
        probe.readFields(in);
        assertTrue(probe.get());
    } catch (IOException exc) {
        fail(exc.getMessage());
    }
}