001/* 002 * (C) Copyright 2015 Nuxeo SA (http://nuxeo.com/) and others. 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-2.1.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 * Thomas Roger 016 */ 017 018package org.nuxeo.ecm.core.convert.service; 019 020import java.io.Serializable; 021import java.util.HashMap; 022import java.util.Map; 023 024import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 025import org.nuxeo.ecm.core.convert.api.ConversionService; 026import org.nuxeo.ecm.core.transientstore.work.TransientStoreWork; 027import org.nuxeo.runtime.api.Framework; 028 029/** 030 * Work executing a given conversion. 031 * 032 * @since 7.4 033 */ 034public class ConversionWork extends TransientStoreWork { 035 036 private static final long serialVersionUID = 14593653977944460L; 037 038 protected String converterName; 039 040 protected String destinationMimeType; 041 042 protected Map<String, Serializable> parameters; 043 044 protected String inputEntryKey; 045 046 public ConversionWork(String converterName, String destinationMimeType, BlobHolder blobHolder, 047 Map<String, Serializable> parameters) { 048 super(); 049 if (converterName == null && destinationMimeType == null) { 050 throw new IllegalArgumentException("'convertName' or 'destinationMimeType' must not be null"); 051 } 052 this.converterName = converterName; 053 this.destinationMimeType = destinationMimeType; 054 this.parameters = parameters; 055 if (this.parameters == null) { 056 this.parameters = new HashMap<>(); 057 } 058 059 storeInputBlobHolder(blobHolder); 060 } 061 062 protected void storeInputBlobHolder(BlobHolder blobHolder) { 063 inputEntryKey = entryKey + "_input"; 064 putBlobHolder(inputEntryKey, blobHolder); 065 } 066 067 @Override 068 public void work() { 069 setStatus("Converting"); 070 071 BlobHolder inputBlobHolder = retrieveInputBlobHolder(); 072 if (inputBlobHolder == null) { 073 return; 074 } 075 076 ConversionService conversionService = Framework.getService(ConversionService.class); 077 BlobHolder result = converterName != null ? conversionService.convert(converterName, inputBlobHolder, 078 parameters) : conversionService.convertToMimeType(destinationMimeType, inputBlobHolder, parameters); 079 if (result == null) { 080 return; 081 } 082 083 putBlobHolder(result); 084 085 setStatus(null); 086 } 087 088 protected BlobHolder retrieveInputBlobHolder() { 089 return getBlobHolder(inputEntryKey); 090 } 091 092 @Override 093 public void cleanUp(boolean ok, Exception e) { 094 super.cleanUp(ok, e); 095 removeBlobHolder(inputEntryKey); 096 } 097 098 @Override 099 public String getTitle() { 100 if (converterName != null) { 101 return String.format("Conversion using '%s' converter", converterName); 102 } else { 103 return String.format("Conversion using '%s' target mime type", destinationMimeType); 104 } 105 } 106}