/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.cocoon.ajax;
import java.util.Collections;
import java.util.Map;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.environment.ObjectModelHelper;
import org.apache.cocoon.environment.Request;
import org.apache.cocoon.matching.Matcher;
import org.apache.cocoon.sitemap.PatternException;
/**
* A matcher that tests if the current request is an Ajax request. This matcher
* provides no sitemap variables.
* <p>
* Example:
* <pre>
* <map:match type="ajax-request">
* ... ajax request ...
* </map:match>
* </pre>
*
* @since 2.1.8
* @version $Id$
*/
public class AjaxRequestMatcher implements Matcher, ThreadSafe {
public Map match(String pattern, Map objectModel, Parameters parameters) throws PatternException {
Request req = ObjectModelHelper.getRequest(objectModel);
return AjaxHelper.isAjaxRequest(req) ? Collections.EMPTY_MAP : null;
}
}