001/*
002 *  Copyright 2018 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.web.frontoffice.search.metamodel.impl;
017
018import java.io.IOException;
019
020import org.apache.cocoon.components.ContextHelper;
021import org.apache.cocoon.environment.Request;
022import org.slf4j.Logger;
023import org.xml.sax.ContentHandler;
024import org.xml.sax.SAXException;
025
026import org.ametys.cms.repository.Content;
027import org.ametys.plugins.repository.AmetysObject;
028import org.ametys.web.WebConstants;
029import org.ametys.web.frontoffice.search.metamodel.ReturnableSaxer;
030import org.ametys.web.frontoffice.search.requesttime.SearchComponentArguments;
031
032/**
033 * {@link ReturnableSaxer} for {@link ContentReturnable}
034 */
035public class ContentSaxer implements ReturnableSaxer
036{
037    /** The associated returnable on contents */
038    protected AbstractContentBasedReturnable _contentReturnable;
039    /** The view for SAXing contents */
040    protected String _view;
041    
042    /**
043     * Constructor
044     * @param contentReturnable The associated returnable on contents
045     * @param view The view for SAXing contents
046     */
047    public ContentSaxer(AbstractContentBasedReturnable contentReturnable, String view)
048    {
049        _contentReturnable = contentReturnable;
050        _view = view;
051    }
052    
053    @Override
054    public boolean canSax(AmetysObject hit, Logger logger, SearchComponentArguments args)
055    {
056        return hit instanceof Content;
057    }
058
059    @Override
060    public void sax(ContentHandler contentHandler, AmetysObject hit, Logger logger, SearchComponentArguments args) throws SAXException
061    {
062        Content content = (Content) hit;
063        String currentSiteName = null;
064        try
065        {
066            currentSiteName = _getCurrentSiteName();
067            _contentReturnable._contentFilterHelper.saxContent(contentHandler, content, _view, false);
068        }
069        catch (IOException e)
070        {
071            logger.error("The content '{}' could not be saxed.", content.getId(), e);
072        }
073        finally
074        {
075            // Need to do this as contentFilterHelper redirects to a Cocoon URL that gets through 'GetSiteAction' which changes some request attributes
076            if (currentSiteName != null)
077            {
078                _restoreSiteName(currentSiteName);
079            }
080        }
081    }
082    
083    private String _getCurrentSiteName()
084    {
085        Request request = ContextHelper.getRequest(_contentReturnable._context);
086        return (String) request.getAttribute(WebConstants.REQUEST_ATTR_SITE_NAME);
087    }
088    
089    private void _restoreSiteName(String currentSiteName)
090    {
091        Request request = ContextHelper.getRequest(_contentReturnable._context);
092        request.setAttribute(WebConstants.REQUEST_ATTR_SITE_NAME, currentSiteName);
093    }
094}