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jRTPS - An implementation of RTPS protocol by OMG

There is a newer version: 1.5.1

package net.sf.jrtps.message.parameter;

import net.sf.jrtps.transport.RTPSByteBuffer;

/**
 * see 8.7.9 Key Hash, 9.6.3.3
 * 
 * @author mcr70
 * 
 */
public class KeyHash extends Parameter implements InlineParameter {
    KeyHash() {
        super(ParameterEnum.PID_KEY_HASH);
    }

    // TODO: we could have constructor that takes a GUID. This could be used
    // with built-in data creation

    public KeyHash(byte[] bytes) {
        super(ParameterEnum.PID_KEY_HASH, bytes);

        if (bytes == null || bytes.length != 16) {
            throw new IllegalArgumentException("byte[] length must be 16");
        }
    }

    /**
     * Get the key hash. Key hash is always of length 16;
     * 
     * @return Key hash as byte array
     */
    public byte[] getKeyHash() {
        return getBytes();
    }

    @Override
    public void read(RTPSByteBuffer bb, int length) {
        readBytes(bb, length); // TODO: default reading. just reads to byte[] in
                               // super class.
    }

    @Override
    public void writeTo(RTPSByteBuffer bb) {
        writeBytes(bb); // TODO: default writing. just writes byte[] in super
                        // class
    }
}