001/*
002 *  Copyright 2014 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.plugins.flipbook;
017
018import java.io.InputStream;
019
020import org.apache.commons.codec.digest.DigestUtils;
021import org.apache.tika.io.IOUtils;
022
023import org.ametys.core.util.FilenameUtils;
024import org.ametys.plugins.explorer.resources.Resource;
025
026/**
027 * Implementation of a {@link AbstractConvertDocument2ImagesComponent} for a content attachment
028 */
029public class ConvertContentAttachment2ImagesComponent extends AbstractConvertDocument2ImagesComponent
030{
031    /** Avalon ROLE. */
032    public static final String ROLE = ConvertContentAttachment2ImagesComponent.class.getName();
033    
034    /**
035     * Put the file in cache
036     * @param resource the resource
037     * @param contentName the name of the content
038     * @param siteName the name of the site
039     * @return The absolute cache path
040     * @throws Exception if an error occurs while caching the file
041     */
042    public String doCache(Resource resource, String contentName, String siteName) throws Exception
043    {
044        // Ensure the base folder exists.
045        String cachePath = _getCacheDirectory (resource, contentName, siteName);
046        
047        InputStream is = null;
048        InputStream is2 = null;
049        try
050        {
051            is = resource.getInputStream();
052            String md5sum = DigestUtils.md5Hex(is);
053            
054            is2 = resource.getInputStream();
055            return cache(cachePath, md5sum, is2, resource.getName(), resource.getId(), resource.getMimeType());
056        }
057        finally
058        {
059            IOUtils.closeQuietly(is);
060            IOUtils.closeQuietly(is2);
061        }
062    }
063    
064    private String _getCacheDirectory(Resource resource, String contentName, String siteName)
065    {
066        StringBuilder buff = new StringBuilder();
067        
068        // Content attachments.
069        buff.append("/");
070        buff.append(siteName);
071        buff.append("/contents/").append(contentName).append("/attachments");
072        buff.append(FilenameUtils.encodePath(resource.getResourcePath()));
073        
074        return buff.toString();
075    }
076}