001/* 002 * (C) Copyright 2006-2012 Nuxeo SA (http://nuxeo.com/) and others. 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 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 */ 020 021package org.nuxeo.template.processors.convert; 022 023import java.io.Serializable; 024import java.util.ArrayList; 025import java.util.List; 026import java.util.Map; 027 028import org.nuxeo.ecm.core.api.Blob; 029import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 030import org.nuxeo.ecm.core.convert.api.ConversionException; 031import org.nuxeo.ecm.core.convert.api.ConversionService; 032import org.nuxeo.ecm.core.convert.api.ConverterCheckResult; 033import org.nuxeo.ecm.core.convert.extension.ConverterDescriptor; 034import org.nuxeo.ecm.core.convert.extension.ExternalConverter; 035import org.nuxeo.runtime.api.Framework; 036 037/** 038 * Converter used to bridge MarkDown and OpenOffice conversions 039 * 040 * @author Tiry (tdelprat@nuxeo.com) 041 */ 042public class AnyToODTConverter implements ExternalConverter { 043 044 protected ConversionService getConversionService() { 045 return Framework.getLocalService(ConversionService.class); 046 } 047 048 protected List<String> getConverterChain(String srcMT) { 049 List<String> subConverters = new ArrayList<String>(); 050 051 if (srcMT == null) { 052 return null; 053 } 054 055 if (srcMT.equals("text/x-web-markdown")) { 056 subConverters.add("md2html"); 057 } 058 059 subConverters.add("sdttext2odt"); 060 061 return subConverters; 062 } 063 064 public BlobHolder convert(BlobHolder blobHolder, Map<String, Serializable> parameters) throws ConversionException { 065 066 Blob sourceBlob = blobHolder.getBlob(); 067 068 List<String> subConverters = getConverterChain(sourceBlob.getMimeType()); 069 070 if (subConverters == null) { 071 throw new ConversionException("Can not find suitable underlying converters to handle html preview"); 072 } 073 074 BlobHolder result = blobHolder; 075 076 for (String converterName : subConverters) { 077 result = getConversionService().convert(converterName, result, parameters); 078 } 079 return result; 080 } 081 082 public void init(ConverterDescriptor descriptor) { 083 } 084 085 public ConverterCheckResult isConverterAvailable() { 086 try { 087 return getConversionService().isConverterAvailable("sdttext2odt"); 088 } catch (ConversionException e) { 089 ConverterCheckResult result = new ConverterCheckResult(); 090 result.setAvailable(false); 091 return result; 092 } 093 } 094 095}