001/* 002 * (C) Copyright 2006-2012 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 * 017 */ 018 019package org.nuxeo.template.processors.convert; 020 021import java.io.Serializable; 022import java.util.ArrayList; 023import java.util.List; 024import java.util.Map; 025 026import org.nuxeo.ecm.core.api.Blob; 027import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 028import org.nuxeo.ecm.core.convert.api.ConversionException; 029import org.nuxeo.ecm.core.convert.api.ConversionService; 030import org.nuxeo.ecm.core.convert.api.ConverterCheckResult; 031import org.nuxeo.ecm.core.convert.extension.ConverterDescriptor; 032import org.nuxeo.ecm.core.convert.extension.ExternalConverter; 033import org.nuxeo.runtime.api.Framework; 034 035/** 036 * Converter used to bridge MarkDown and OpenOffice conversions 037 * 038 * @author Tiry (tdelprat@nuxeo.com) 039 */ 040public class AnyToODTConverter implements ExternalConverter { 041 042 protected ConversionService getConversionService() { 043 return Framework.getLocalService(ConversionService.class); 044 } 045 046 protected List<String> getConverterChain(String srcMT) { 047 List<String> subConverters = new ArrayList<String>(); 048 049 if (srcMT == null) { 050 return null; 051 } 052 053 if (srcMT.equals("text/x-web-markdown")) { 054 subConverters.add("md2html"); 055 } 056 057 subConverters.add("sdttext2odt"); 058 059 return subConverters; 060 } 061 062 public BlobHolder convert(BlobHolder blobHolder, Map<String, Serializable> parameters) throws ConversionException { 063 064 Blob sourceBlob = blobHolder.getBlob(); 065 066 List<String> subConverters = getConverterChain(sourceBlob.getMimeType()); 067 068 if (subConverters == null) { 069 throw new ConversionException("Can not find suitable underlying converters to handle html preview"); 070 } 071 072 BlobHolder result = blobHolder; 073 074 for (String converterName : subConverters) { 075 result = getConversionService().convert(converterName, result, parameters); 076 } 077 return result; 078 } 079 080 public void init(ConverterDescriptor descriptor) { 081 } 082 083 public ConverterCheckResult isConverterAvailable() { 084 try { 085 return getConversionService().isConverterAvailable("sdttext2odt"); 086 } catch (ConversionException e) { 087 ConverterCheckResult result = new ConverterCheckResult(); 088 result.setAvailable(false); 089 return result; 090 } 091 } 092 093}