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 if (converterName == null && destinationMimeType == null) { 051 throw new IllegalArgumentException("'convertName' or 'destinationMimeType' must not be null"); 052 } 053 this.converterName = converterName; 054 this.destinationMimeType = destinationMimeType; 055 this.parameters = parameters; 056 if (this.parameters == null) { 057 this.parameters = new HashMap<>(); 058 } 059 060 storeInputBlobHolder(blobHolder); 061 } 062 063 protected void storeInputBlobHolder(BlobHolder blobHolder) { 064 inputEntryKey = entryKey + "_input"; 065 putBlobHolder(inputEntryKey, blobHolder); 066 } 067 068 @Override 069 public void work() { 070 setStatus("Converting"); 071 072 BlobHolder inputBlobHolder = retrieveInputBlobHolder(); 073 if (inputBlobHolder == null) { 074 return; 075 } 076 077 ConversionService conversionService = Framework.getService(ConversionService.class); 078 BlobHolder result = converterName != null ? conversionService.convert(converterName, inputBlobHolder, 079 parameters) : conversionService.convertToMimeType(destinationMimeType, inputBlobHolder, parameters); 080 if (result == null) { 081 return; 082 } 083 084 putBlobHolder(result); 085 086 setStatus(null); 087 } 088 089 protected BlobHolder retrieveInputBlobHolder() { 090 return getBlobHolder(inputEntryKey); 091 } 092 093 @Override 094 public void cleanUp(boolean ok, Exception e) { 095 super.cleanUp(ok, e); 096 removeBlobHolder(inputEntryKey); 097 } 098 099 @Override 100 public String getTitle() { 101 if (converterName != null) { 102 return String.format("Conversion using '%s' converter", converterName); 103 } else { 104 return String.format("Conversion using '%s' target mime type", destinationMimeType); 105 } 106 } 107}