/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.mobicents.protocols.ss7.m3ua.impl.parameter;

import java.util.Arrays;

import javolution.xml.XMLFormat;
import javolution.xml.XMLSerializable;
import javolution.xml.stream.XMLStreamException;

import org.mobicents.protocols.ss7.m3ua.parameter.Parameter;
import org.mobicents.protocols.ss7.m3ua.parameter.ServiceIndicators;

/**
 * 
 * @author amit bhayani
 * 
 */
public class ServiceIndicatorsImpl extends ParameterImpl implements ServiceIndicators, XMLSerializable {

	private static final String INDICATOR = "indicator";
	private static final String ARRAY_SIZE = "size";

	private short[] indicators;
	private byte[] value = null;

	public ServiceIndicatorsImpl() {
		this.tag = Parameter.Service_Indicators;
	}

	protected ServiceIndicatorsImpl(short[] inds) {
		this.tag = Parameter.Service_Indicators;
		this.indicators = inds;
		this.encode();
	}

	protected ServiceIndicatorsImpl(byte[] value) {
		this.tag = Parameter.Service_Indicators;
		this.indicators = new short[value.length];
		for (int i = 0; i < value.length; i++) {
			this.indicators[i] = value[i];
		}
		this.value = value;
	}

	private void encode() {
		// create byte array taking into account data, point codes and
		// indicators;
		this.value = new byte[indicators.length];
		int count = 0;
		// encode routing context
		while (count < value.length) {
			value[count] = (byte) indicators[count++];
		}
	}

	@Override
	protected byte[] getValue() {
		return this.value;
	}

	public short[] getIndicators() {
		return this.indicators;
	}

	@Override
	public String toString() {
		return String.format("ServiceIndicators ids=%s", Arrays.toString(this.indicators));
	}

	/**
	 * XML Serialization/Deserialization
	 */
	protected static final XMLFormat<ServiceIndicatorsImpl> RC_XML = new XMLFormat<ServiceIndicatorsImpl>(
			ServiceIndicatorsImpl.class) {

		@Override
		public void read(javolution.xml.XMLFormat.InputElement xml, ServiceIndicatorsImpl si) throws XMLStreamException {
			int size = xml.getAttribute(ARRAY_SIZE).toInt();
			si.indicators = new short[size];
			size = 0;
			while (xml.hasNext()) {
				si.indicators[size++] = xml.get(INDICATOR);
			}
			
			si.encode();
		}

		@Override
		public void write(ServiceIndicatorsImpl si, javolution.xml.XMLFormat.OutputElement xml)
				throws XMLStreamException {
			xml.setAttribute(ARRAY_SIZE, si.indicators.length);
			for (Short s : si.indicators) {
				xml.add(s, INDICATOR);
			}
		}
	};

}