org.mobicents.slee.resource.sip11.Utils Maven / Gradle / Ivy
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* 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.
*/
package org.mobicents.slee.resource.sip11;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Set;
import javax.sip.address.AddressFactory;
import javax.sip.address.URI;
import javax.sip.header.CSeqHeader;
import javax.sip.header.CallIdHeader;
import javax.sip.header.ContactHeader;
import javax.sip.header.ContentLengthHeader;
import javax.sip.header.FromHeader;
import javax.sip.header.HeaderFactory;
import javax.sip.header.RecordRouteHeader;
import javax.sip.header.RouteHeader;
import javax.sip.header.ToHeader;
import javax.sip.header.ViaHeader;
import javax.sip.message.Request;
import javax.sip.message.Response;
public class Utils {
private static Set DIALOG_CREATING_METHODS;
/**
*
* @return
*/
public static Set getDialogCreatingMethods() {
if (DIALOG_CREATING_METHODS == null) {
final Set set = new HashSet();
set.add(Request.INVITE);
set.add(Request.REFER);
set.add(Request.SUBSCRIBE);
DIALOG_CREATING_METHODS = Collections.unmodifiableSet(set);
}
return DIALOG_CREATING_METHODS;
}
private static Set HEADERS_TO_OMMIT_ON_REQUEST_COPY;
/**
*
* @return
*/
public static Set getHeadersToOmmitOnRequestCopy() {
if (HEADERS_TO_OMMIT_ON_REQUEST_COPY == null) {
final Set set = new HashSet();
set.add(RouteHeader.NAME);
set.add(RecordRouteHeader.NAME);
set.add(ViaHeader.NAME);
set.add(CallIdHeader.NAME);
set.add(CSeqHeader.NAME);
set.add(FromHeader.NAME);
set.add(ToHeader.NAME);
set.add(ContentLengthHeader.NAME);
HEADERS_TO_OMMIT_ON_REQUEST_COPY = Collections.unmodifiableSet(set);
}
return HEADERS_TO_OMMIT_ON_REQUEST_COPY;
}
private static Set HEADERS_TO_OMMIT_ON_RESPONSE_COPY;
/**
*
* @return
*/
public static Set getHeadersToOmmitOnResponseCopy() {
if (HEADERS_TO_OMMIT_ON_RESPONSE_COPY == null) {
final Set set = new HashSet();
set.add(RouteHeader.NAME);
set.add(RecordRouteHeader.NAME);
set.add(ViaHeader.NAME);
set.add(CallIdHeader.NAME);
set.add(CSeqHeader.NAME);
set.add(ContactHeader.NAME);
set.add(FromHeader.NAME);
set.add(ToHeader.NAME);
set.add(ContentLengthHeader.NAME);
HEADERS_TO_OMMIT_ON_RESPONSE_COPY = Collections.unmodifiableSet(set);
}
return HEADERS_TO_OMMIT_ON_RESPONSE_COPY;
}
/**
* Generates route list the same way dialog does.
* @param response
* @return
* @throws ParseException
*/
public static List getRouteList(Response response, HeaderFactory headerFactory) throws ParseException {
// we have record route set, as we are client, this is reversed
final ArrayList routeList = new ArrayList();
final ListIterator rrLit = response.getHeaders(RecordRouteHeader.NAME);
while (rrLit.hasNext()) {
final RecordRouteHeader rrh = (RecordRouteHeader) rrLit.next();
final RouteHeader rh = headerFactory.createRouteHeader(rrh.getAddress());
final Iterator pIt = rrh.getParameterNames();
while (pIt.hasNext()) {
final String pName = (String) pIt.next();
rh.setParameter(pName, rrh.getParameter(pName));
}
routeList.add(0, rh);
}
return routeList;
}
/**
* Forges Request-URI using contact and To name par to address URI, this is
* required on dialog fork, this is how target is determined
*
* @param response
* @return
* @throws ParseException
*/
public static URI getRequestUri(Response response, AddressFactory addressFactory) throws ParseException {
final ContactHeader contact = ((ContactHeader) response.getHeader(ContactHeader.NAME));
return (contact != null) ? (URI) contact.getAddress().getURI().clone() : null;
}
}