/* * 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.restcomm.media.client.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.restcomm.media.client.mgcp.handlers.MgcpContentHandler; import org.restcomm.media.client.mgcp.handlers.TransactionHandler; import org.restcomm.media.client.mgcp.parser.SplitDetails; import org.restcomm.media.client.mgcp.parser.StringFunctions; import org.restcomm.media.client.mgcp.parser.params.BearerInformationHandler; import org.restcomm.media.client.mgcp.parser.params.ConnectionModeHandler; import org.restcomm.media.client.mgcp.parser.params.DigitMapHandler; import org.restcomm.media.client.mgcp.parser.params.EndpointIdentifierHandler; import org.restcomm.media.client.mgcp.parser.params.EventNameHandler; import org.restcomm.media.client.mgcp.parser.params.LocalOptionValueHandler; import org.restcomm.media.client.mgcp.parser.params.NotificationRequestParamHandler; import org.restcomm.media.client.mgcp.parser.params.NotifiedEntityHandler; import org.restcomm.media.client.mgcp.parser.params.RequestedEventHandler; import org.restcomm.media.client.mgcp.parser.params.ReturnCodeHandler; import org.restcomm.media.client.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; } }