/*
* File Name : EndpointConfigurationHandle.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.mgcp.stack;
import jain.protocol.ip.mgcp.JainMgcpCommandEvent;
import jain.protocol.ip.mgcp.JainMgcpResponseEvent;
import jain.protocol.ip.mgcp.message.EndpointConfiguration;
import jain.protocol.ip.mgcp.message.EndpointConfigurationResponse;
import jain.protocol.ip.mgcp.message.parms.BearerInformation;
import jain.protocol.ip.mgcp.message.parms.EndpointIdentifier;
import jain.protocol.ip.mgcp.message.parms.ReturnCode;
import java.net.InetAddress;
import java.text.ParseException;
import org.apache.log4j.Logger;
import org.mobicents.mgcp.stack.parser.MgcpContentHandler;
import org.mobicents.mgcp.stack.parser.MgcpMessageParser;
import org.mobicents.mgcp.stack.parser.Utils;
/**
*
* @author Oleg Kulikov
* @author Pavel Mitrenko
*/
public class EndpointConfigurationHandler extends TransactionHandler {
private EndpointConfiguration command;
private EndpointConfigurationResponse response;
private static final Logger logger = Logger.getLogger(EndpointConfigurationHandler.class);
/** Creates a new instance of EndpointConfigurationHandle */
public EndpointConfigurationHandler(JainMgcpStackImpl stack) {
super(stack);
}
public EndpointConfigurationHandler(JainMgcpStackImpl stack, InetAddress address, int port) {
super(stack, address, port);
}
public JainMgcpCommandEvent decodeCommand(String message) throws ParseException {
Utils utils = utilsFactory.allocate();
MgcpMessageParser parser = new MgcpMessageParser(new CommandContentHandle(utils));
try {
parser.parse(message);
} catch (Exception e) {
// should never happen
logger.error("Parsing of EndpointConfiguration command failed", e);
} finally {
utilsFactory.deallocate(utils);
}
return command;
}
public JainMgcpResponseEvent decodeResponse(String message) throws ParseException {
Utils utils = utilsFactory.allocate();
MgcpMessageParser parser = new MgcpMessageParser(new ResponseContentHandle(utils));
try {
parser.parse(message);
} catch (Exception e) {
// should never happen
logger.error("Parsing of EndpointConfiguration Response failed", e);
} finally {
utilsFactory.deallocate(utils);
}
return response;
}
public String encode(JainMgcpCommandEvent event) {
// encode message header
EndpointConfiguration evt = (EndpointConfiguration) event;
StringBuffer s = new StringBuffer();
s.append("EPCF ").append(evt.getTransactionHandle()).append(SINGLE_CHAR_SPACE).append(
evt.getEndpointIdentifier()).append(MGCP_VERSION).append(NEW_LINE);
// encode mandatory parameters
s.append("B:e:").append(evt.getBearerInformation()).append(NEW_LINE);
return s.toString();
}
public String encode(JainMgcpResponseEvent event) {
EndpointConfigurationResponse response = (EndpointConfigurationResponse) event;
ReturnCode returnCode = response.getReturnCode();
StringBuffer s = new StringBuffer();
s.append(returnCode.getValue()).append(SINGLE_CHAR_SPACE).append(response.getTransactionHandle()).append(
SINGLE_CHAR_SPACE).append(returnCode.getComment()).append(NEW_LINE);
return s.toString();
}
private class CommandContentHandle implements MgcpContentHandler {
private Utils utils = null;
public CommandContentHandle(Utils utils) {
this.utils = utils;
}
/**
* Receive notification of the header of a message. Parser will call
* this method to report about header reading.
*
* @param header
* the header from the message.
*/
public void header(String header) throws ParseException {
command = new EndpointConfiguration(source != null ? source : stack, endpoint, BearerInformation.EncMethod_A_Law);
command.setTransactionHandle(remoteTID);
}
/**
* 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(String name, String value) throws ParseException {
if (name.equalsIgnoreCase("B")) {
command.setBearerInformation(utils.decodeBearerInformation(value));
}
}
/**
* 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 {
}
}
private class ResponseContentHandle implements MgcpContentHandler {
private Utils utils = null;
public ResponseContentHandle(Utils utils) {
this.utils = utils;
}
/**
* Receive notification of the header of a message. Parser will call
* this method to report about header reading.
*
* @param header
* the header from the message.
*/
public void header(String header) throws ParseException {
String[] tokens = utils.splitStringBySpace(header);
int tid = Integer.parseInt(tokens[1]);
response = new EndpointConfigurationResponse(source != null ? source : stack, utils
.decodeReturnCode(Integer.parseInt(tokens[0])));
response.setTransactionHandle(tid);
}
/**
* 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(String name, String value) throws ParseException {
}
/**
* 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 {
}
}
@Override
public JainMgcpResponseEvent getProvisionalResponse() {
EndpointConfigurationResponse provisionalresponse = null;
if (!sent) {
provisionalresponse = new EndpointConfigurationResponse(source != null ? source : stack,
ReturnCode.Transaction_Being_Executed);
}
return provisionalresponse;
}
}