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;
017
018import java.util.HashMap;
019import java.util.Map;
020
021import org.apache.avalon.framework.parameters.Parameters;
022import org.apache.cocoon.acting.AbstractAction;
023import org.apache.cocoon.environment.ObjectModelHelper;
024import org.apache.cocoon.environment.Redirector;
025import org.apache.cocoon.environment.SourceResolver;
026import org.apache.commons.lang.StringUtils;
027
028/**
029 * Action which gets and returns a parent context attribute value.
030 */
031public class GetParentContextAttributeAction extends AbstractAction
032{
033    @Override
034    public Map act(Redirector redirector, SourceResolver resolver, Map objectModel, String source, Parameters parameters) throws Exception
035    {
036        Map parentContextAttr = (Map) objectModel.get(ObjectModelHelper.PARENT_CONTEXT);
037        
038        Map<String, String> result = new HashMap<>();
039        
040        String attributes = parameters.getParameter("attributes", "");
041        
042        String[] attributeArr = StringUtils.split(attributes, ", ");
043        for (String attribute : attributeArr)
044        {
045            String value = StringUtils.defaultString((String) parentContextAttr.get(attribute));
046            result.put(attribute, value);
047        }
048        
049        return result;
050    }
051}