org.mobicents.protocols.mgcp.parser.commands.CreateConnectionHandler Maven / Gradle / Ivy
/*
* 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.
*/
/*
* File Name : CreateConnectionHandle.java
*
* The JAIN MGCP API implementaion.
*
* The source code contained in this file is in in the public domain.
* It can be used in any project or product without prior permission,
* license or royalty payments. There is NO WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION,
* THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
* AND DATA ACCURACY. We do not warrant or make any representations
* regarding the use of the software or the results thereof, including
* but not limited to the correctness, accuracy, reliability or
* usefulness of the software.
*/
package org.mobicents.protocols.mgcp.parser.commands;
import jain.protocol.ip.mgcp.JainMgcpCommandEvent;
import jain.protocol.ip.mgcp.JainMgcpResponseEvent;
import jain.protocol.ip.mgcp.message.CreateConnection;
import jain.protocol.ip.mgcp.message.CreateConnectionResponse;
import jain.protocol.ip.mgcp.message.parms.CallIdentifier;
import jain.protocol.ip.mgcp.message.parms.ConflictingParameterException;
import jain.protocol.ip.mgcp.message.parms.ConnectionDescriptor;
import jain.protocol.ip.mgcp.message.parms.ConnectionIdentifier;
import jain.protocol.ip.mgcp.message.parms.ConnectionMode;
import jain.protocol.ip.mgcp.message.parms.DigitMap;
import jain.protocol.ip.mgcp.message.parms.NotificationRequestParms;
import jain.protocol.ip.mgcp.message.parms.NotifiedEntity;
import jain.protocol.ip.mgcp.message.parms.RequestIdentifier;
import jain.protocol.ip.mgcp.message.parms.ReturnCode;
import java.io.IOException;
import java.net.InetAddress;
import java.text.ParseException;
import org.apache.log4j.Logger;
import org.mobicents.protocols.mgcp.handlers.MgcpContentHandler;
import org.mobicents.protocols.mgcp.handlers.TransactionHandler;
import org.mobicents.protocols.mgcp.parser.StringFunctions;
import org.mobicents.protocols.mgcp.parser.SplitDetails;
import org.mobicents.protocols.mgcp.parser.params.EndpointIdentifierHandler;
import org.mobicents.protocols.mgcp.parser.params.ConnectionModeHandler;
import org.mobicents.protocols.mgcp.parser.params.BearerInformationHandler;
import org.mobicents.protocols.mgcp.parser.params.NotifiedEntityHandler;
import org.mobicents.protocols.mgcp.parser.params.LocalOptionValueHandler;
import org.mobicents.protocols.mgcp.parser.params.NotificationRequestParamHandler;
import org.mobicents.protocols.mgcp.parser.params.ReturnCodeHandler;
import org.mobicents.protocols.mgcp.parser.params.RequestedEventHandler;
import org.mobicents.protocols.mgcp.parser.params.EventNameHandler;
import org.mobicents.protocols.mgcp.parser.params.DigitMapHandler;
import org.mobicents.protocols.mgcp.stack.JainMgcpStackImpl;
/**
*
* @author Oleg Kulikov
* @author Pavel Mitrenko
* @author amit bhayani
* @author yulian oifa
*/
public class CreateConnectionHandler extends TransactionHandler {
public static final byte[] COMMAND_NAME=new byte[] {
StringFunctions.HIGH_C_BYTE,StringFunctions.HIGH_R_BYTE,
StringFunctions.HIGH_C_BYTE,StringFunctions.HIGH_X_BYTE
};
private static final Logger logger = Logger.getLogger(CreateConnectionHandler.class);
private CreateConnection command;
private CreateConnectionResponse response;
/** Creates a new instance of CreateConnectionHandle */
public CreateConnectionHandler(JainMgcpStackImpl stack) {
super(stack);
}
public CreateConnectionHandler(JainMgcpStackImpl stack, InetAddress address, int port) {
super(stack, address, port);
}
public JainMgcpCommandEvent decodeCommand(byte[] data,SplitDetails[] message) throws ParseException
{
command = new CreateConnection(source != null ? source : stack, new CallIdentifier("0"), endpoint,ConnectionMode.Inactive);
command.setTransactionHandle(remoteTID);
try
{
(new CommandContentHandle()).parse(data,message);
}
catch (Exception e)
{
throw new ParseException(e.getMessage(), -1);
}
NotifiedEntity notifiedEntity = command.getNotifiedEntity();
if (command.getNotifiedEntity() != null)
this.stack.provider.setNotifiedEntity(notifiedEntity);
return command;
}
public JainMgcpResponseEvent decodeResponse(byte[] data,SplitDetails[] msg,Integer txID,ReturnCode returnCode) throws ParseException
{
response = new CreateConnectionResponse(source != null ? source : stack, returnCode, new ConnectionIdentifier("00"));
response.setTransactionHandle(txID);
try
{
(new ResponseContentHandle()).parse(data,msg);
}
catch (IOException e)
{
logger.error("Decode of CRCX Response failed ", e);
}
return response;
}
public int encode(JainMgcpCommandEvent event,byte[] array)
{
CreateConnection evt = (CreateConnection) event;
int totalLength=5;
System.arraycopy(COMMAND_NAME, 0, array, 0, 4);
array[4]=StringFunctions.SPACE_BYTE;
totalLength+=StringFunctions.encodeInt(array,5,event.getTransactionHandle());
array[totalLength++]=StringFunctions.SPACE_BYTE;
totalLength+=EndpointIdentifierHandler.encode(array,totalLength,evt.getEndpointIdentifier());
array[totalLength++]=StringFunctions.SPACE_BYTE;
System.arraycopy(MGCP_VERSION, 0, array, totalLength, MGCP_VERSION.length);
totalLength+=MGCP_VERSION.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
// encode mandatory parameters
array[totalLength++]=StringFunctions.HIGH_C_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
byte[] callBytes=evt.getCallIdentifier().toString().getBytes();
System.arraycopy(callBytes, 0, array,totalLength, callBytes.length);
totalLength+=callBytes.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
array[totalLength++]=StringFunctions.HIGH_M_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=ConnectionModeHandler.encode(array,totalLength,evt.getMode());
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
// encode optional parameters
if (evt.getBearerInformation() != null)
{
array[totalLength++]=StringFunctions.HIGH_B_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=BearerInformationHandler.encode(array,totalLength,evt.getBearerInformation());
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
if (evt.getNotifiedEntity() != null)
{
array[totalLength++]=StringFunctions.HIGH_N_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=NotifiedEntityHandler.encode(array,totalLength,evt.getNotifiedEntity());
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
if (evt.getLocalConnectionOptions() != null)
{
array[totalLength++]=StringFunctions.HIGH_L_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=LocalOptionValueHandler.encodeList(array,totalLength,evt.getLocalConnectionOptions());
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
if (evt.getSecondEndpointIdentifier() != null)
{
array[totalLength++]=StringFunctions.HIGH_Z_BYTE;
array[totalLength++]=StringFunctions.TWO_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=EndpointIdentifierHandler.encode(array,totalLength,evt.getSecondEndpointIdentifier());
}
if (evt.getNotificationRequestParms() != null)
{
array[totalLength++]=StringFunctions.HIGH_L_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=NotificationRequestParamHandler.encode(array,totalLength,evt.getNotificationRequestParms());
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
if (evt.getRemoteConnectionDescriptor() != null)
{
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
byte[] rcdBytes=evt.getRemoteConnectionDescriptor().toString().getBytes();
System.arraycopy(rcdBytes, 0, array,totalLength, rcdBytes.length);
totalLength+=rcdBytes.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
return totalLength;
}
public int encode(JainMgcpResponseEvent event,byte[] array)
{
CreateConnectionResponse response = (CreateConnectionResponse) event;
ReturnCode returnCode = response.getReturnCode();
int totalLength=ReturnCodeHandler.encode(array,0,returnCode);
array[totalLength++]=StringFunctions.SPACE_BYTE;
totalLength+=StringFunctions.encodeInt(array,totalLength,response.getTransactionHandle());
array[totalLength++]=StringFunctions.SPACE_BYTE;
byte[] commentBytes=returnCode.getComment().getBytes();
System.arraycopy(commentBytes, 0, array,totalLength, commentBytes.length);
totalLength+=commentBytes.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
if (response.getConnectionIdentifier() != null)
{
array[totalLength++]=StringFunctions.HIGH_I_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
byte[] connectionIdentifierBytes=response.getConnectionIdentifier().toString().getBytes();
System.arraycopy(connectionIdentifierBytes, 0, array,totalLength, connectionIdentifierBytes.length);
totalLength+=connectionIdentifierBytes.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
if (response.getSpecificEndpointIdentifier() != null)
{
array[totalLength++]=StringFunctions.HIGH_Z_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=EndpointIdentifierHandler.encode(array,totalLength,response.getSpecificEndpointIdentifier());
}
if (response.getSecondConnectionIdentifier() != null)
{
array[totalLength++]=StringFunctions.HIGH_I_BYTE;
array[totalLength++]=StringFunctions.TWO_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
byte[] connectionIdentifierBytes=response.getSecondConnectionIdentifier().toString().getBytes();
System.arraycopy(connectionIdentifierBytes, 0, array,totalLength, connectionIdentifierBytes.length);
totalLength+=connectionIdentifierBytes.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
if (response.getSecondEndpointIdentifier() != null)
{
array[totalLength++]=StringFunctions.HIGH_Z_BYTE;
array[totalLength++]=StringFunctions.TWO_BYTE;
array[totalLength++]=StringFunctions.COLON_BYTE;
totalLength+=EndpointIdentifierHandler.encode(array,totalLength,response.getSecondEndpointIdentifier());
}
if (response.getLocalConnectionDescriptor() != null)
{
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
byte[] rcdBytes=response.getLocalConnectionDescriptor().toString().getBytes();
System.arraycopy(rcdBytes, 0, array,totalLength, rcdBytes.length);
totalLength+=rcdBytes.length;
array[totalLength++]=StringFunctions.NEWLINE_BYTE;
}
return totalLength;
}
private class CommandContentHandle extends MgcpContentHandler
{
public CommandContentHandle()
{
}
/**
* Receive notification of the parameter of a message. Parser will call
* this method to report about parameter reading.
*
* @param name
* the name of the paremeter
* @param value
* the value of the parameter.
*/
public void param(byte[] data,SplitDetails name,SplitDetails value) throws ParseException
{
if(name.getLength()==1)
{
switch(data[name.getOffset()])
{
case StringFunctions.LOW_B_BYTE:
case StringFunctions.HIGH_B_BYTE:
command.setBearerInformation(BearerInformationHandler.decode(data,value.getOffset(),value.getLength()));
break;
case StringFunctions.LOW_C_BYTE:
case StringFunctions.HIGH_C_BYTE:
command.setCallIdentifier(new CallIdentifier(new String(data,value.getOffset(),value.getLength())));
break;
case StringFunctions.LOW_L_BYTE:
case StringFunctions.HIGH_L_BYTE:
command.setLocalConnectionOptions(LocalOptionValueHandler.decodeList(data,value.getOffset(),value.getLength()));
break;
case StringFunctions.LOW_M_BYTE:
case StringFunctions.HIGH_M_BYTE:
command.setMode(ConnectionModeHandler.decode(data,value.getOffset(),value.getLength()));
break;
case StringFunctions.LOW_N_BYTE:
case StringFunctions.HIGH_N_BYTE:
command.setNotifiedEntity(NotifiedEntityHandler.decode(data,value.getOffset(),value.getLength(), true));
break;
case StringFunctions.LOW_X_BYTE:
case StringFunctions.HIGH_X_BYTE:
command.setNotificationRequestParms(new NotificationRequestParms(new RequestIdentifier(new String(data,value.getOffset(),value.getLength()))));
break;
case StringFunctions.LOW_D_BYTE:
case StringFunctions.HIGH_D_BYTE:
command.getNotificationRequestParms().setDigitMap(DigitMapHandler.decode(data,value.getOffset(),value.getLength()));
break;
case StringFunctions.LOW_R_BYTE:
case StringFunctions.HIGH_R_BYTE:
command.getNotificationRequestParms().setRequestedEvents(RequestedEventHandler.decodeList(data,value.getOffset(),value.getLength()));
break;
case StringFunctions.LOW_S_BYTE:
case StringFunctions.HIGH_S_BYTE:
command.getNotificationRequestParms().setSignalRequests(EventNameHandler.decodeList(data,value.getOffset(),value.getLength()));
break;
case StringFunctions.LOW_T_BYTE:
case StringFunctions.HIGH_T_BYTE:
command.getNotificationRequestParms().setDetectEvents(EventNameHandler.decodeList(data,value.getOffset(),value.getLength()));
break;
default:
logger.warn("Unidentified CRCX Request parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
break;
}
}
else if(name.getLength()==2)
{
switch(data[name.getOffset()])
{
case StringFunctions.LOW_Z_BYTE:
case StringFunctions.HIGH_Z_BYTE:
if(data[name.getOffset()+1]==StringFunctions.TWO_BYTE)
{
try
{
command.setSecondEndpointIdentifier(EndpointIdentifierHandler.decode(data,value.getOffset(),value.getLength()));
}
catch (ConflictingParameterException e)
{
}
}
else
logger.warn("Unidentified CRCX Request parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
break;
default:
logger.warn("Unidentified CRCX Request parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
break;
}
}
else
logger.warn("Unidentified CRCX Request parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
}
/**
* Receive notification of the session description. Parser will call
* this method to report about session descriptor reading.
*
* @param sd
* the session description from message.
*/
public void sessionDescription(String sd) throws ParseException
{
try
{
command.setRemoteConnectionDescriptor(new ConnectionDescriptor(sd));
} catch (Exception e)
{
logger.error("Unexpected error in session descriptor", e);
}
}
}
private class ResponseContentHandle extends MgcpContentHandler
{
public ResponseContentHandle()
{
}
/**
* Receive notification of the parameter of a message. Parser will call
* this method to report about parameter reading.
*
* @param name
* the name of the paremeter
* @param value
* the value of the parameter.
*/
public void param(byte[] data,SplitDetails name,SplitDetails value) throws ParseException
{
if(name.getLength()==1)
{
switch(data[name.getOffset()])
{
case StringFunctions.LOW_I_BYTE:
case StringFunctions.HIGH_I_BYTE:
response.setConnectionIdentifier(new ConnectionIdentifier(new String(data,value.getOffset(),value.getLength())));
break;
case StringFunctions.LOW_Z_BYTE:
case StringFunctions.HIGH_Z_BYTE:
response.setSpecificEndpointIdentifier(EndpointIdentifierHandler.decode(data,value.getOffset(),value.getLength()));
break;
default:
logger.warn("Unidentified CRCX Response parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
break;
}
}
else if(name.getLength()==2)
{
switch(data[name.getOffset()])
{
case StringFunctions.LOW_I_BYTE:
case StringFunctions.HIGH_I_BYTE:
if(data[name.getOffset()+1]==StringFunctions.TWO_BYTE)
response.setSecondConnectionIdentifier(new ConnectionIdentifier(new String(data,value.getOffset(),value.getLength())));
break;
case StringFunctions.LOW_Z_BYTE:
case StringFunctions.HIGH_Z_BYTE:
if(data[name.getOffset()+1]==StringFunctions.TWO_BYTE)
response.setSecondEndpointIdentifier(EndpointIdentifierHandler.decode(data,value.getOffset(),value.getLength()));
break;
default:
logger.warn("Unidentified CRCX Response parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
break;
}
}
else
logger.warn("Unidentified CRCX Response parameter " + new String(data,name.getOffset(),name.getLength()) + " with value = " + new String(data,value.getOffset(),value.getLength()));
}
/**
* Receive notification of the session description. Parser will call
* this method to report about session descriptor reading.
*
* @param sd
* the session description from message.
*/
public void sessionDescription(String sd) throws ParseException
{
response.setLocalConnectionDescriptor(new ConnectionDescriptor(sd));
}
}
@Override
public JainMgcpResponseEvent getProvisionalResponse()
{
CreateConnectionResponse provisionalResponse = null;
if (!sent)
{
ConnectionIdentifier connectionIdentifier = new ConnectionIdentifier("1");
provisionalResponse = new CreateConnectionResponse(source != null ? source : stack,ReturnCode.Transaction_Being_Executed, connectionIdentifier);
provisionalResponse.setTransactionHandle(remoteTID);
}
return provisionalResponse;
}
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