/*
* 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.servlet.sip.startup.loading.rules.request;
import javax.servlet.sip.SipURI;
import javax.servlet.sip.TelURL;
import javax.servlet.sip.URI;
/**
* @author Thomas Leseney
*/
public class Param implements Extractor {
private String param;
public Param(String token, String param) {
if (!token.equals("uri")) {
throw new IllegalArgumentException("Invalid expression: param after " + token);
}
this.param = param;
}
public Object extract(Object input) {
URI uri = (URI) input;
if (uri.isSipURI()) {
return ((SipURI) uri).getParameter(param);
} else if ("tel".equals(uri.getScheme())) {
return ((TelURL) uri).getParameter(param);
}
return null;
}
}