001/* 002 * (C) Copyright 2015 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 * Thomas Roger 018 */ 019 020package org.nuxeo.ecm.core.convert.service; 021 022import java.io.Serializable; 023import java.util.HashMap; 024import java.util.Map; 025 026import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 027import org.nuxeo.ecm.core.convert.api.ConversionService; 028import org.nuxeo.ecm.core.transientstore.work.TransientStoreWork; 029import org.nuxeo.runtime.api.Framework; 030 031/** 032 * Work executing a given conversion. 033 * 034 * @since 7.4 035 */ 036public class ConversionWork extends TransientStoreWork { 037 038 private static final long serialVersionUID = 14593653977944460L; 039 040 protected String converterName; 041 042 protected String destinationMimeType; 043 044 protected Map<String, Serializable> parameters; 045 046 protected String inputEntryKey; 047 048 public ConversionWork(String converterName, String destinationMimeType, BlobHolder blobHolder, 049 Map<String, Serializable> parameters) { 050 super(); 051 if (converterName == null && destinationMimeType == null) { 052 throw new IllegalArgumentException("'convertName' or 'destinationMimeType' must not be null"); 053 } 054 this.converterName = converterName; 055 this.destinationMimeType = destinationMimeType; 056 this.parameters = parameters; 057 if (this.parameters == null) { 058 this.parameters = new HashMap<>(); 059 } 060 061 storeInputBlobHolder(blobHolder); 062 } 063 064 protected void storeInputBlobHolder(BlobHolder blobHolder) { 065 inputEntryKey = entryKey + "_input"; 066 putBlobHolder(inputEntryKey, blobHolder); 067 } 068 069 @Override 070 public void work() { 071 setStatus("Converting"); 072 073 BlobHolder inputBlobHolder = retrieveInputBlobHolder(); 074 if (inputBlobHolder == null) { 075 return; 076 } 077 078 ConversionService conversionService = Framework.getService(ConversionService.class); 079 BlobHolder result = converterName != null ? conversionService.convert(converterName, inputBlobHolder, 080 parameters) : conversionService.convertToMimeType(destinationMimeType, inputBlobHolder, parameters); 081 if (result == null) { 082 return; 083 } 084 085 putBlobHolder(result); 086 087 setStatus(null); 088 } 089 090 protected BlobHolder retrieveInputBlobHolder() { 091 return getBlobHolder(inputEntryKey); 092 } 093 094 @Override 095 public void cleanUp(boolean ok, Exception e) { 096 super.cleanUp(ok, e); 097 removeBlobHolder(inputEntryKey); 098 } 099 100 @Override 101 public String getTitle() { 102 if (converterName != null) { 103 return String.format("Conversion using '%s' converter", converterName); 104 } else { 105 return String.format("Conversion using '%s' target mime type", destinationMimeType); 106 } 107 } 108}