001/*
002 *  Copyright 2012 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.core.util.cocoon;
017
018import java.util.Iterator;
019import java.util.Map;
020
021import javax.servlet.ServletContext;
022
023import org.apache.avalon.framework.configuration.Configuration;
024import org.apache.avalon.framework.configuration.ConfigurationException;
025import org.apache.cocoon.components.modules.input.InputModule;
026import org.apache.cocoon.environment.http.HttpEnvironment;
027
028/**
029 * This input module read in cocoon context attributes<br>
030 * Use it {context-attr:attrName} 
031 */
032public class ContextAttributesInputModule implements InputModule
033{
034    public Object getAttribute(String name, Configuration modeConf, Map objectModel) throws ConfigurationException
035    {
036        ServletContext servletContext = (ServletContext) objectModel.get(HttpEnvironment.HTTP_SERVLET_CONTEXT);
037        return servletContext.getAttribute(name);
038    }
039
040    public Iterator getAttributeNames(Configuration modeConf, Map objectModel) throws ConfigurationException
041    {
042        return null;
043    }
044
045    public Object[] getAttributeValues(String name, Configuration modeConf, Map objectModel) throws ConfigurationException
046    {
047        return new Object[] {getAttribute(name, modeConf, objectModel)};
048    }
049}