PivotCounterImpl.java

/**
 * Start time:08:44:19 2009-04-06<br>
 * Project: mobicents-isup-stack<br>
 * 
 * @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski
 *         </a>
 * 
 */
package org.mobicents.ss7.isup.impl.message.parameter;

import java.io.IOException;

import org.mobicents.ss7.isup.ParameterRangeInvalidException;
import org.mobicents.ss7.isup.message.parameter.PivotCounter;

/**
 * Start time:08:44:19 2009-04-06<br>
 * Project: mobicents-isup-stack<br>
 * 
 * @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski </a>
 */
public class PivotCounterImpl extends AbstractParameter implements PivotCounter {

	private int counter = 0;

	public PivotCounterImpl(byte[] b) throws ParameterRangeInvalidException {
		super();
		decodeElement(b);
	}

	public PivotCounterImpl() {
		super();
		// TODO Auto-generated constructor stub
	}

	public PivotCounterImpl(int counter) {
		super();
		this.setCounter(counter);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.mobicents.isup.ISUPComponent#decodeElement(byte[])
	 */
	public int decodeElement(byte[] b) throws ParameterRangeInvalidException {
		if (b == null || b.length != 1) {
			throw new ParameterRangeInvalidException("byte[] must not be null and length must be 1");
		}

		this.counter = b[0] & 0x1F;
		return 1;
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.mobicents.isup.ISUPComponent#encodeElement()
	 */
	public byte[] encodeElement() throws IOException {

		return new byte[] { (byte) (this.counter & 0x1F) };
	}

	public int getCounter() {
		return counter;
	}

	public void setCounter(int counter) {
		this.counter = counter;
	}

	public int getCode() {

		return _PARAMETER_CODE;
	}

}