001/* 002 * (C) Copyright 2006-2007 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.ecm.platform.convert.plugins; 022 023import java.io.File; 024import java.io.IOException; 025import java.io.Serializable; 026import java.util.ArrayList; 027import java.util.HashMap; 028import java.util.List; 029import java.util.Map; 030 031import org.nuxeo.common.utils.Path; 032import org.nuxeo.ecm.core.api.Blob; 033import org.nuxeo.ecm.core.api.Blobs; 034import org.nuxeo.ecm.core.api.blobholder.BlobHolder; 035import org.nuxeo.ecm.core.convert.api.ConversionException; 036import org.nuxeo.ecm.core.convert.cache.SimpleCachableBlobHolder; 037import org.nuxeo.ecm.platform.commandline.executor.api.CmdParameters; 038 039/** 040 * Pdf2Image converter based on imageMagick's convert command-line executable. 041 * 042 * @author ldoguin 043 */ 044public class PDF2ImageConverter extends CommandLineBasedConverter { 045 046 @Override 047 protected BlobHolder buildResult(List<String> cmdOutput, CmdParameters cmdParams) { 048 049 String outputPath = cmdParams.getParameter("outDirPath"); 050 File outputDir = new File(outputPath); 051 File[] files = outputDir.listFiles(); 052 List<Blob> blobs = new ArrayList<Blob>(); 053 054 for (File file : files) { 055 try { 056 Blob blob = Blobs.createBlob(file); 057 blob.setFilename(file.getName()); 058 blobs.add(blob); 059 } catch (IOException e) { 060 throw new ConversionException("Cannot create Blob", e); 061 } 062 } 063 return new SimpleCachableBlobHolder(blobs); 064 } 065 066 @Override 067 protected Map<String, Blob> getCmdBlobParameters(BlobHolder blobHolder, Map<String, Serializable> parameters) 068 throws ConversionException { 069 070 Map<String, Blob> cmdBlobParams = new HashMap<String, Blob>(); 071 cmdBlobParams.put("inputFilePath", blobHolder.getBlob()); 072 return cmdBlobParams; 073 } 074 075 @Override 076 protected Map<String, String> getCmdStringParameters(BlobHolder blobHolder, Map<String, Serializable> parameters) 077 throws ConversionException { 078 079 Map<String, String> cmdStringParams = new HashMap<String, String>(); 080 081 String baseDir = getTmpDirectory(parameters); 082 Path tmpPath = new Path(baseDir).append("pdf2image_" + System.currentTimeMillis()); 083 084 File outDir = new File(tmpPath.toString()); 085 boolean dirCreated = outDir.mkdir(); 086 if (!dirCreated) { 087 throw new ConversionException("Unable to create tmp dir for transformer output"); 088 } 089 090 cmdStringParams.put("outDirPath", outDir.getAbsolutePath()); 091 cmdStringParams.put("outputFilePath", outDir.getAbsolutePath() + System.getProperty("file.separator") 092 + parameters.get("targetFilePath").toString()); 093 return cmdStringParams; 094 } 095 096}