Example usage for java.nio ByteBuffer putDouble

Introduction

In this page you can find the example usage for java.nio ByteBuffer putDouble.

Prototype

public abstract ByteBuffer putDouble(double value);

Source Link

Document

Writes the given double to the current position and increases the position by 8.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer buf = ByteBuffer.allocate(100);

    // Put values of different types
    buf.putDouble(12.3D);

    // Reset position for reading
    buf.flip();//from w  w w. ja  va2s.c om

    // Retrieve the values
    double d = buf.getDouble();

}

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From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.putDouble(123);

    System.out.println(Arrays.toString(bbuf.array()));
}

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From source file:Main.java

public static byte[] createDigest(String passcode, long t1, double q1)
        throws IOException, NoSuchAlgorithmException {
    MessageDigest md = MessageDigest.getInstance("SHA");
    md.update(passcode.getBytes());/*from  www  .  jav a 2  s. co m*/
    ByteBuffer bb = ByteBuffer.allocate(16); //8 bytes for long and double each
    bb.putLong(t1);
    bb.putDouble(q1);
    md.update(bb);
    return md.digest();
}

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From source file:org.apache.camel.converter.NIOConverter.java

@Converter
public static ByteBuffer toByteBuffer(Double value) {
    ByteBuffer buf = ByteBuffer.allocate(8);
    buf.putDouble(value);
    return buf;/*  w ww  . j  a v  a 2  s  .  c  o m*/
}

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From source file:ConversionUtil.java

public static byte[] convertToByteArray(double value) {
    byte[] bytes = new byte[8];
    ByteBuffer buffer = ByteBuffer.allocate(bytes.length);
    buffer.putDouble(value);
    return buffer.array();
    // buffer.get(bytes);
    // return bytes;
    //return convertToByteArray(Double.doubleToLongBits(value));
}

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From source file:org.opensha.commons.util.XMLUtils.java

public static void doubleArrayToXML(Element parent, double[] array, String elName) {
    byte[] bytes = new byte[array.length * 8];
    ByteBuffer buf = ByteBuffer.wrap(bytes);
    for (double val : array)
        buf.putDouble(val);
    byteArrayToXML(parent, buf.array(), elName);
}

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From source file:org.mcisb.util.math.MathUtils.java

/**
 * /*from   w ww.j a va  2s  . c om*/
 * @param values
 * @param bigEndian
 * @return String
 */
public static byte[] getBytes(final double[] values, final boolean bigEndian) {
    final byte[] byteArray = new byte[values.length * DOUBLE_LENGTH];
    ByteBuffer buffer = ByteBuffer.wrap(byteArray);
    buffer = buffer.order(bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);

    for (int i = 0; i < values.length; i++) {
        buffer.putDouble(values[i]);
    }

    return buffer.array();
}

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From source file:org.pentaho.di.trans.steps.teradatabulkloader.TeraDataBulkLoaderRoutines.java

/**
 * Convert float.//from w ww.  j av  a  2  s.  c om
 *
 * @param d the d
 * @return the byte[]
 */
static byte[] convertFloat(Double d) {
    ByteBuffer b = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
    b.putDouble(d != null ? d : 0);
    return b.array();
}

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From source file:hivemall.GeneralLearnerBaseUDTF.java

private static void writeFeatureValue(@Nonnull final ByteBuffer buf, @Nonnull final FeatureValue f) {
    NIOUtils.putString(f.getFeatureAsString(), buf);
    buf.putDouble(f.getValue());
}

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From source file:edu.umn.cs.spatialHadoop.indexing.BTRPartitioner.java

@Override
public void write(DataOutput out) throws IOException {
    mbr.write(out);/*from   w w w  .java2s.  c o  m*/
    out.writeInt(columns);
    out.writeInt(rows);
    ByteBuffer bbuffer = ByteBuffer.allocate((xSplits.length + ySplits.length) * 8);
    for (double xSplit : xSplits)
        bbuffer.putDouble(xSplit);
    for (double ySplit : ySplits)
        bbuffer.putDouble(ySplit);
    if (bbuffer.hasRemaining())
        throw new RuntimeException("Did not calculate buffer size correctly");
    out.write(bbuffer.array(), bbuffer.arrayOffset(), bbuffer.position());
}

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