// ========================================================================
// Copyright 2008-2009 NEXCOM Systems
// ------------------------------------------------------------------------
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========================================================================
package org.cipango.sipapp.rules.request;
import javax.servlet.sip.SipServletRequest;
public class Route implements Extractor
{
public Route(String token)
{
if (!token.equals("request"))
throw new IllegalArgumentException("Invalid expression: route after " + token);
}
public Object extract(Object input)
{
SipServletRequest request = (SipServletRequest) input;
return request.getPoppedRoute();
}
}