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.cocoon;
017
018import java.io.IOException;
019
020import org.apache.avalon.framework.service.ServiceException;
021import org.apache.avalon.framework.service.ServiceManager;
022import org.apache.cocoon.ProcessingException;
023import org.apache.cocoon.environment.ObjectModelHelper;
024import org.apache.cocoon.environment.Request;
025import org.apache.cocoon.reading.ServiceableReader;
026import org.xml.sax.SAXException;
027
028import org.ametys.core.util.JSONUtils;
029
030/**
031 * Serialize as json
032 */
033public class JSonReader extends ServiceableReader
034{
035    /** The map to */
036    public static final String OBJECT_TO_READ = JSonReader.class.getName() + "$result-map";
037    
038    private JSONUtils _jsonUtils;
039    
040    @Override
041    public String getMimeType()
042    {
043        // RUNTIME-1063 The JSON reader should expose the standard MIME type "application/json"
044        // Keep "text/plain" since IE does not know how to deal with "application/json" by default
045        return "text/plain";
046    }
047    
048    @Override
049    public void service(ServiceManager smanager) throws ServiceException
050    {
051        super.service(smanager);
052        _jsonUtils = (JSONUtils) smanager.lookup(JSONUtils.ROLE);
053    }
054    
055    @Override
056    public void generate() throws IOException, SAXException, ProcessingException
057    {
058        Request request = ObjectModelHelper.getRequest(objectModel);
059        Object objectToRead = request.getAttribute(OBJECT_TO_READ);
060     
061        _jsonUtils.convertObjectToJson(out, objectToRead);
062    }
063    
064}