/*
* TeleStax, Open Source Cloud Communications
* Copyright 2012, Telestax 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.isup.impl.message.parameter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javolution.xml.XMLFormat;
import javolution.xml.stream.XMLStreamException;
import org.mobicents.protocols.ss7.isup.ParameterException;
import org.mobicents.protocols.ss7.isup.message.parameter.CauseIndicators;
/**
* Start time:15:14:32 2009-03-30<br>
* Project: mobicents-isup-stack<br>
*
* @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski </a>
* @author sergey vetyutnev
*/
public class CauseIndicatorsImpl extends AbstractISUPParameter implements CauseIndicators {
private static final String LOCATION = "location";
private static final String CAUSE_VALUE = "causeValue";
private static final String CODING_STANDARD = "codingStandard";
private static final String RECOMMENDATION = "recommendation";
private static final String DIAGNOSTICS = "diagnostics";
private static final int DEFAULT_VALUE = 0;
private int location = 0;
private int causeValue = 0;
private int codingStandard = 0;
private int recommendation = 0;
private byte[] diagnostics = null;
public CauseIndicatorsImpl() {
super();
}
public CauseIndicatorsImpl(int codingStandard, int location, int recommendation, int causeValue, byte[] diagnostics) {
super();
this.setCodingStandard(codingStandard);
this.setLocation(location);
this.setRecommendation(recommendation);
this.setCauseValue(causeValue);
this.diagnostics = diagnostics;
}
public int decode(byte[] b) throws ParameterException {
// NOTE: there are ext bits but we do not care about them
// FIXME: "Recommendation" optional field must be encoded/decoded when codingStandard!=_CODING_STANDARD_ITUT
if (b == null || b.length < 2) {
throw new ParameterException("byte[] must not be null or has size less than 2");
}
// Used because of Q.850 - we must ignore recomendation
int index = 0;
// first two bytes are mandatory
int v = 0;
// remove ext
v = b[index] & 0x7F;
this.location = v & 0x0F;
this.codingStandard = v >> 5;
if (((b[index] & 0x7F) >> 7) == 0) {
index += 2;
} else {
index++;
}
v = 0;
v = b[1] & 0x7F;
this.causeValue = v;
if (b.length == 2) {
return 2;
} else {
if ((b.length - 2) % 3 != 0) {
throw new ParameterException("Diagnostics part must have 3xN bytes, it has: " + (b.length - 2));
}
int byteCounter = 2;
ByteArrayOutputStream bos = new ByteArrayOutputStream();
for (int i = 2; i < b.length; i++) {
bos.write(b[i]);
byteCounter++;
}
this.diagnostics = bos.toByteArray();
return byteCounter;
}
}
public byte[] encode() throws ParameterException {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int v = this.location & 0x0F;
v |= (byte) ((this.codingStandard & 0x03) << 5) | (0x01 << 7);
bos.write(v);
bos.write(this.causeValue | (0x01 << 7));
if (this.diagnostics != null) {
try {
bos.write(this.diagnostics);
} catch (IOException e) {
throw new ParameterException(e);
}
}
byte[] b = bos.toByteArray();
return b;
}
public int encode(ByteArrayOutputStream bos) throws ParameterException {
byte[] b = this.encode();
try {
bos.write(b);
} catch (IOException e) {
throw new ParameterException(e);
}
return b.length;
}
public int getCodingStandard() {
return codingStandard;
}
public void setCodingStandard(int codingStandard) {
this.codingStandard = codingStandard & 0x03;
}
public int getLocation() {
return location;
}
public void setLocation(int location) {
this.location = location & 0x0F;
}
public int getCauseValue() {
return causeValue & 0x7F;
}
public int getRecommendation() {
return recommendation;
}
public void setRecommendation(int recommendation) {
this.recommendation = recommendation & 0x7F;
}
public void setCauseValue(int causeValue) {
this.causeValue = causeValue;
}
public byte[] getDiagnostics() {
return diagnostics;
}
public void setDiagnostics(byte[] diagnostics) {
this.diagnostics = diagnostics;
}
public int getCode() {
return _PARAMETER_CODE;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("CauseIndicators [");
sb.append("codingStandard=");
sb.append(codingStandard);
sb.append(", location=");
sb.append(location);
sb.append(", recommendation=");
sb.append(recommendation);
sb.append(", causeValue=");
sb.append(causeValue);
if (this.diagnostics != null) {
sb.append(", diagnostics=[");
sb.append(printDataArr(this.diagnostics));
sb.append("]");
}
sb.append("]");
return sb.toString();
}
protected String printDataArr(byte[] data) {
StringBuilder sb = new StringBuilder();
boolean first = true;
if (data != null) {
for (int b : data) {
if (first)
first = false;
else
sb.append(", ");
sb.append(b);
}
}
return sb.toString();
}
/**
* XML Serialization/Deserialization
*/
protected static final XMLFormat<CauseIndicatorsImpl> ISUP_CAUSE_INDICATORS_XML = new XMLFormat<CauseIndicatorsImpl>(
CauseIndicatorsImpl.class) {
@Override
public void read(javolution.xml.XMLFormat.InputElement xml, CauseIndicatorsImpl causeIndicators)
throws XMLStreamException {
causeIndicators.location = xml.getAttribute(LOCATION, DEFAULT_VALUE);
causeIndicators.causeValue = xml.getAttribute(CAUSE_VALUE, DEFAULT_VALUE);
causeIndicators.codingStandard = xml.getAttribute(CODING_STANDARD, DEFAULT_VALUE);
causeIndicators.recommendation = xml.getAttribute(RECOMMENDATION, DEFAULT_VALUE);
ByteArrayContainer bc = xml.get(DIAGNOSTICS, ByteArrayContainer.class);
if (bc != null) {
causeIndicators.diagnostics = bc.getData();
}
}
@Override
public void write(CauseIndicatorsImpl causeIndicators, javolution.xml.XMLFormat.OutputElement xml)
throws XMLStreamException {
xml.setAttribute(LOCATION, causeIndicators.location);
xml.setAttribute(CAUSE_VALUE, causeIndicators.causeValue);
xml.setAttribute(CODING_STANDARD, causeIndicators.codingStandard);
xml.setAttribute(RECOMMENDATION, causeIndicators.recommendation);
if (causeIndicators.diagnostics != null) {
ByteArrayContainer bac = new ByteArrayContainer(causeIndicators.diagnostics);
xml.add(bac, DIAGNOSTICS, ByteArrayContainer.class);
}
}
};
}