// ========================================================================
// 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.SipURI;
import javax.servlet.sip.TelURL;
import javax.servlet.sip.URI;
public class Tel implements Extractor
{
public Tel(String token)
{
if (!token.equals("uri"))
throw new IllegalArgumentException("Invalid expression: tel after " + token);
}
public Object extract(Object input)
{
URI uri = (URI) input;
if (uri.isSipURI())
{
SipURI sipuri = (SipURI) uri;
if ("phone".equals(sipuri.getParameter("user")))
return stripVisuals(sipuri.getUser());
}
else if ("tel".equals(uri.getScheme()))
{
return stripVisuals(((TelURL) uri).getPhoneNumber());
}
return null;
}
private String stripVisuals(String s)
{
StringBuffer buf = new StringBuffer(s.length());
for (int i = 0; i < s.length(); i++)
{
char c = s.charAt(i);
if ("-.()".indexOf(c) < 0)
buf.append(c);
}
return buf.toString();
}
}