/*
* TeleStax, Open Source Cloud Communications Copyright 2012.
* 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.cap.service.sms.primitive;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.CharacterCodingException;
import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.ss7.cap.api.service.sms.primitive.SMSAddressString;
import org.mobicents.protocols.ss7.map.api.MAPException;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentException;
import org.mobicents.protocols.ss7.map.api.MAPParsingComponentExceptionReason;
import org.mobicents.protocols.ss7.map.api.primitives.AddressNature;
import org.mobicents.protocols.ss7.map.api.primitives.NumberingPlan;
import org.mobicents.protocols.ss7.map.datacoding.GSMCharset;
import org.mobicents.protocols.ss7.map.datacoding.GSMCharsetDecoder;
import org.mobicents.protocols.ss7.map.datacoding.GSMCharsetDecodingData;
import org.mobicents.protocols.ss7.map.datacoding.GSMCharsetEncoder;
import org.mobicents.protocols.ss7.map.datacoding.Gsm7EncodingStyle;
import org.mobicents.protocols.ss7.map.primitives.AddressStringImpl;
/**
*
* @author Lasith Waruna Perera
*
*/
public class SMSAddressStringImpl extends AddressStringImpl implements SMSAddressString {
public SMSAddressStringImpl() {
}
public SMSAddressStringImpl(AddressNature addressNature, NumberingPlan numberingPlan, String address) {
super(addressNature, numberingPlan, address);
}
@Override
protected void _testLengthDecode(int length) throws MAPParsingComponentException {
if (length > 11)
throw new MAPParsingComponentException(
"Error when decoding SMSAddressString: mesage length must not exceed 11",
MAPParsingComponentExceptionReason.MistypedParameter);
}
@Override
protected void _testLengthEncode() throws MAPException {
if (this.address == null && this.address.length() > 28)
throw new MAPException("Error when encoding SMSAddressString: address length must not exceed 28 digits");
}
@Override
protected void _decode(AsnInputStream ansIS, int length) throws MAPParsingComponentException, IOException {
int pos = ansIS.position();
int nature = ansIS.read();
ansIS.position(pos);
AddressNature an = AddressNature.getInstance((nature & NATURE_OF_ADD_IND_MASK) >> 4);
if (an == AddressNature.reserved) {
nature = ansIS.read();
int natureOfAddInd = ((nature & NATURE_OF_ADD_IND_MASK) >> 4);
this.addressNature = AddressNature.getInstance(natureOfAddInd);
int numbPlanInd = (nature & NUMBERING_PLAN_IND_MASK);
this.numberingPlan = NumberingPlan.getInstance(numbPlanInd);
byte[] rawAddress;
try {
rawAddress = ansIS.readOctetStringData(length - 1);
} catch (AsnException e) {
throw new MAPParsingComponentException("AsnException when reading data from ansIS: " + e.getMessage(), e,
MAPParsingComponentExceptionReason.MistypedParameter);
}
ByteBuffer bb = ByteBuffer.wrap(rawAddress, 0, rawAddress.length);
GSMCharset cs = new GSMCharset(GSMCharset.GSM_CANONICAL_NAME, new String[] {});
GSMCharsetDecoder decoder = (GSMCharsetDecoder) cs.newDecoder();
int totalSeptetCount = (rawAddress.length < 7 ? rawAddress.length : rawAddress.length + 1);
GSMCharsetDecodingData encodingData = new GSMCharsetDecodingData(Gsm7EncodingStyle.bit7_sms_style,
totalSeptetCount, 0);
decoder.setGSMCharsetDecodingData(encodingData);
CharBuffer bf = decoder.decode(bb);
this.address = bf.toString();
} else {
super._decode(ansIS, length);
}
}
@Override
public void encodeData(AsnOutputStream asnOs) throws MAPException {
if (this.addressNature == AddressNature.reserved) {
int tpOfAddr = 0x80 + (this.addressNature.getIndicator() << 4) + this.numberingPlan.getIndicator();
asnOs.write(tpOfAddr);
GSMCharset cs = new GSMCharset(GSMCharset.GSM_CANONICAL_NAME, new String[] {});
GSMCharsetEncoder encoder = (GSMCharsetEncoder) cs.newEncoder();
ByteBuffer bb = null;
try {
bb = encoder.encode(CharBuffer.wrap(this.address));
} catch (CharacterCodingException e) {
throw new MAPException("CharacterCodingException when encoding SMSAddressString: " + e.getMessage(), e);
}
int dataLength = bb.limit();
byte[] data = new byte[dataLength];
bb.get(data);
asnOs.write(data);
} else {
super.encodeData(asnOs);
}
}
@Override
public String toString() {
return "SMSAddressString [AddressNature=" + this.addressNature.toString() + ", NumberingPlan="
+ this.numberingPlan.toString() + ", Address=" + this.address + "]";
}
}