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Merged REPO-2054 (5.2.1) to 5.2.N (5.2.1)
136871 skopf: REPO-2054 - GS Replacement: Implement new transformer to invoke the rasterizer, depending on chosen technology - rename transformer to "alfresco-pdf-renderer" transformer - added code to check availability - formatted source code git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@137097 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
This commit is contained in:
Stefan Kopf
@@ -1,301 +0,0 @@
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/*
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* #%L
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* Alfresco Repository
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||||
* %%
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* Copyright (C) 2005 - 2016 Alfresco Software Limited
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||||
* %%
|
||||
* This file is part of the Alfresco software.
|
||||
* If the software was purchased under a paid Alfresco license, the terms of
|
||||
* the paid license agreement will prevail. Otherwise, the software is
|
||||
* provided under the following open source license terms:
|
||||
*
|
||||
* Alfresco is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* Alfresco is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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* #L%
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*/
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package org.alfresco.repo.content.transform.pdfium;
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import java.io.File;
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import java.util.HashMap;
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import java.util.Map;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.repo.content.transform.ContentTransformerHelper;
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import org.alfresco.repo.content.transform.ContentTransformerWorker;
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import org.alfresco.repo.content.transform.magick.ImageResizeOptions;
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import org.alfresco.repo.content.transform.magick.ImageTransformationOptions;
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import org.alfresco.service.cmr.repository.ContentIOException;
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.alfresco.service.cmr.repository.ContentWriter;
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import org.alfresco.service.cmr.repository.MimetypeService;
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import org.alfresco.service.cmr.repository.PagedSourceOptions;
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import org.alfresco.service.cmr.repository.TransformationOptions;
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import org.alfresco.util.TempFileProvider;
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import org.alfresco.util.exec.RuntimeExec;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.beans.factory.InitializingBean;
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public class PdfiumContentTransformerWorker extends ContentTransformerHelper
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implements ContentTransformerWorker, InitializingBean {
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/** options variable name */
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private static final String KEY_OPTIONS = "options";
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/** source variable name */
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private static final String VAR_SOURCE = "source";
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/** target variable name */
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private static final String VAR_TARGET = "target";
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private static final Log logger = LogFactory.getLog(PdfiumContentTransformerWorker.class);
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/** the system command executer */
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private RuntimeExec executer;
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/** the output from the check command */
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private String versionString;
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private boolean available;
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public PdfiumContentTransformerWorker() {
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this.available = false;
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}
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@Override
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public void afterPropertiesSet() throws Exception {
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if (executer == null) {
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throw new AlfrescoRuntimeException("System runtime executer not set");
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}
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setAvailable(true);
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}
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/**
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* Set the runtime command executer that must be executed in order to run
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* <b>ImageMagick</b>. Whether or not this is the full path to the convertCommand
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* or just the convertCommand itself depends the environment setup.
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* <p>
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* The command must contain the variables <code>${source}</code> and
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* <code>${target}</code>, which will be replaced by the names of the file to
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* be transformed and the name of the output file respectively.
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* <pre>
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* convert ${source} ${target}
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* </pre>
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*
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* @param executer the system command executer
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*/
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public void setExecuter(RuntimeExec executer)
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{
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executer.setProcessProperty(
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"PDFIUM_TMPDIR", TempFileProvider.getTempDir().getAbsolutePath());
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this.executer = executer;
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}
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/**
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* @return Returns true if the transformer is functioning otherwise false
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*/
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@Override
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public boolean isAvailable() {
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return available;
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}
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/**
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* Make the transformer available
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*
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* @param available
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* boolean
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*/
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protected void setAvailable(boolean available) {
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this.available = available;
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}
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@Override
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public String getVersionString() {
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return this.versionString;
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}
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@Override
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public boolean isTransformable(String sourceMimetype, String targetMimetype, TransformationOptions options) {
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if (!available) {
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return false;
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}
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// Add limited support (so lots of other transforms are not supported)
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// for PDF to PNG.
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if ((MimetypeMap.MIMETYPE_PDF.equals(sourceMimetype)
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|| MimetypeMap.MIMETYPE_APPLICATION_ILLUSTRATOR.equals(sourceMimetype))
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&& MimetypeMap.MIMETYPE_IMAGE_PNG.equals(targetMimetype)) {
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return true;
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}
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return false;
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}
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@Override
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public void transform(ContentReader reader, ContentWriter writer, TransformationOptions options) throws Exception {
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// get mimetypes
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String sourceMimetype = getMimetype(reader);
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String targetMimetype = getMimetype(writer);
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// get the extensions to use
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MimetypeService mimetypeService = getMimetypeService();
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String sourceExtension = mimetypeService.getExtension(sourceMimetype);
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String targetExtension = mimetypeService.getExtension(targetMimetype);
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if (sourceExtension == null || targetExtension == null) {
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throw new AlfrescoRuntimeException("Unknown extensions for mimetypes: \n" + " source mimetype: "
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+ sourceMimetype + "\n" + " source extension: " + sourceExtension + "\n" + " target mimetype: "
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+ targetMimetype + "\n" + " target extension: " + targetExtension);
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}
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// create required temp files
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File sourceFile = TempFileProvider.createTempFile(getClass().getSimpleName() + "_source_",
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"." + sourceExtension);
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File targetFile = TempFileProvider.createTempFile(getClass().getSimpleName() + "_target_",
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"." + targetExtension);
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// pull reader file into source temp file
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reader.getContent(sourceFile);
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transformInternal(sourceFile, sourceMimetype, targetFile, targetMimetype, options);
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// check that the file was created
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if (!targetFile.exists() || targetFile.length() == 0) {
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throw new ContentIOException("Pdfium transformation failed to write output file");
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}
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// upload the output image
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writer.putContent(targetFile);
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// done
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if (logger.isDebugEnabled()) {
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logger.debug("Transformation completed: \n" + " source: " + reader + "\n" + " target: " + writer + "\n"
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+ " options: " + options);
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}
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}
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/**
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* Transform the pdf content from the source file to the target file
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*/
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private void transformInternal(File sourceFile, String sourceMimetype, File targetFile, String targetMimetype,
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TransformationOptions options) throws Exception {
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Map<String, String> properties = new HashMap<String, String>(5);
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// set properties
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if (options instanceof ImageTransformationOptions) {
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ImageTransformationOptions imageOptions = (ImageTransformationOptions)options;
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ImageResizeOptions resizeOptions = imageOptions.getResizeOptions();
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String commandOptions = imageOptions.getCommandOptions();
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if (commandOptions == null)
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{
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commandOptions = "";
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}
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if(resizeOptions.getHeight() > -1){
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commandOptions += " --height=" + resizeOptions.getHeight();
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}
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if(resizeOptions.getWidth() > -1){
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commandOptions += " --width=" + resizeOptions.getHeight();
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}
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if(resizeOptions.getAllowEnlargement()){
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commandOptions += " --allow-enlargement";
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}
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if(resizeOptions.isMaintainAspectRatio()){
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commandOptions += " --maintain-aspect-ratio";
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}
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commandOptions += " --page="+ getSourcePageRange(imageOptions, sourceMimetype, targetMimetype);
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properties.put(KEY_OPTIONS, commandOptions);
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}
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properties.put(VAR_SOURCE,
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sourceFile.getAbsolutePath());
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properties.put(VAR_TARGET, targetFile.getAbsolutePath());
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// execute the statement
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long timeoutMs = options.getTimeoutMs();
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RuntimeExec.ExecutionResult result = executer.execute(properties, timeoutMs);
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if (result.getExitValue() != 0 && result.getStdErr() != null && result.getStdErr().length() > 0) {
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throw new ContentIOException("Failed to perform Pdfium transformation: \n" + result);
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}
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// success
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if (logger.isDebugEnabled()) {
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logger.debug("Pdfium executed successfully: \n" + executer);
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}
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}
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@Override
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public String getComments(boolean available) {
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StringBuilder sb = new StringBuilder();
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sb.append("# Supports transformations between mimetypes");
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sb.append("# pdf or ai to png.\n");
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return sb.toString();
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}
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/**
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* Determines whether or not a single page range is required for the given
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* source and target mimetypes.
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*
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* @param sourceMimetype
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* @param targetMimetype
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* @return whether or not a page range must be specified for the transformer
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* to read the target files
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*/
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private boolean isSingleSourcePageRangeRequired(String sourceMimetype, String targetMimetype) {
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return true;
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}
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/**
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* Gets the page range from the source to use in the command line.
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*
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* @param options
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* the transformation options
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* @param sourceMimetype
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* the source mimetype
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* @param targetMimetype
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* the target mimetype
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* @return the source page range for the command line
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*/
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private String getSourcePageRange(TransformationOptions options, String sourceMimetype, String targetMimetype) {
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if (options instanceof ImageTransformationOptions) {
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ImageTransformationOptions imageOptions = (ImageTransformationOptions) options;
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PagedSourceOptions pagedSourceOptions = imageOptions.getSourceOptions(PagedSourceOptions.class);
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if (pagedSourceOptions != null) {
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if (pagedSourceOptions.getStartPageNumber() != null && pagedSourceOptions.getEndPageNumber() != null) {
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if (pagedSourceOptions.getStartPageNumber().equals(pagedSourceOptions.getEndPageNumber())) {
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return "" + (pagedSourceOptions.getStartPageNumber() - 1) ;
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} else {
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if (isSingleSourcePageRangeRequired(sourceMimetype, targetMimetype)) {
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throw new AlfrescoRuntimeException(
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"A single page is required for targets of type " + targetMimetype);
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}
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return "" + (pagedSourceOptions.getStartPageNumber() - 1) + "-"
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+ (pagedSourceOptions.getEndPageNumber() - 1);
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}
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} else {
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// TODO specified start to end of doc and start of doc to
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// specified end not yet supported
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// Just grab a single page specified by either start or end
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if (pagedSourceOptions.getStartPageNumber() != null)
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return "" + (pagedSourceOptions.getStartPageNumber() - 1) ;
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if (pagedSourceOptions.getEndPageNumber() != null)
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return "" + (pagedSourceOptions.getEndPageNumber() - 1) ;
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}
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}
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}
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if (options.getPageLimit() == 1 || isSingleSourcePageRangeRequired(sourceMimetype, targetMimetype)) {
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return "0";
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} else {
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return "";
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}
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}
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}
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@@ -0,0 +1,335 @@
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/*
|
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* #%L
|
||||
* Alfresco Repository
|
||||
* %%
|
||||
* Copyright (C) 2005 - 2016 Alfresco Software Limited
|
||||
* %%
|
||||
* This file is part of the Alfresco software.
|
||||
* If the software was purchased under a paid Alfresco license, the terms of
|
||||
* the paid license agreement will prevail. Otherwise, the software is
|
||||
* provided under the following open source license terms:
|
||||
*
|
||||
* Alfresco is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU Lesser General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* Alfresco is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
|
||||
* #L%
|
||||
*/
|
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package org.alfresco.repo.content.transform.pdfrenderer;
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import java.io.File;
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import java.util.HashMap;
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import java.util.Map;
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|
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import org.alfresco.error.AlfrescoRuntimeException;
|
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.repo.content.transform.ContentTransformerHelper;
|
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import org.alfresco.repo.content.transform.ContentTransformerWorker;
|
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import org.alfresco.repo.content.transform.magick.ImageResizeOptions;
|
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import org.alfresco.repo.content.transform.magick.ImageTransformationOptions;
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import org.alfresco.service.cmr.repository.ContentIOException;
|
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import org.alfresco.service.cmr.repository.ContentReader;
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import org.alfresco.service.cmr.repository.ContentWriter;
|
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import org.alfresco.service.cmr.repository.MimetypeService;
|
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import org.alfresco.service.cmr.repository.PagedSourceOptions;
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import org.alfresco.service.cmr.repository.TransformationOptions;
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import org.alfresco.util.PropertyCheck;
|
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import org.alfresco.util.TempFileProvider;
|
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import org.alfresco.util.exec.RuntimeExec;
|
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import org.alfresco.util.exec.RuntimeExec.ExecutionResult;
|
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.beans.factory.InitializingBean;
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public class AlfrescoPdfRendererContentTransformerWorker extends ContentTransformerHelper implements ContentTransformerWorker, InitializingBean
|
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{
|
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|
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/** options variable name */
|
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private static final String KEY_OPTIONS = "options";
|
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/** source variable name */
|
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private static final String VAR_SOURCE = "source";
|
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/** target variable name */
|
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private static final String VAR_TARGET = "target";
|
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|
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private static final Log logger = LogFactory.getLog(AlfrescoPdfRendererContentTransformerWorker.class);
|
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|
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/** the system command executer */
|
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private RuntimeExec executer;
|
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|
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/** the check command executer */
|
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private RuntimeExec checkCommand;
|
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|
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/** the output from the check command */
|
||||
private String versionString;
|
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|
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private boolean available;
|
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|
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public AlfrescoPdfRendererContentTransformerWorker()
|
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{
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this.available = false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Set the runtime command executer that must be executed in order to run <b>alfresco-pdf-renderer</b>. Whether or not this is
|
||||
* the full path to the command or just the command itself depends the environment setup.
|
||||
* <p>
|
||||
* The command must contain the variables <code>${source}</code> and <code>${target}</code>, which will be replaced
|
||||
* by the names of the file to be transformed and the name of the output file respectively.
|
||||
*
|
||||
* <pre>
|
||||
* alfresco-pdf-renderer ${source} ${target}
|
||||
* </pre>
|
||||
*
|
||||
* @param executer the system command executer
|
||||
*/
|
||||
public void setExecuter(RuntimeExec executer)
|
||||
{
|
||||
this.executer = executer;
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets the command that must be executed in order to retrieve version information from the executable
|
||||
* and thus test that the executable itself is present.
|
||||
*
|
||||
* @param checkCommand
|
||||
* command executer to retrieve version information
|
||||
*/
|
||||
public void setCheckCommand(RuntimeExec checkCommand)
|
||||
{
|
||||
this.checkCommand = checkCommand;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void afterPropertiesSet() throws Exception
|
||||
{
|
||||
PropertyCheck.mandatory(this, "executer", executer);
|
||||
PropertyCheck.mandatory(this, "checkCommand", checkCommand);
|
||||
// check availability
|
||||
try
|
||||
{
|
||||
ExecutionResult result = this.checkCommand.execute();
|
||||
if(result.getSuccess())
|
||||
{
|
||||
this.versionString = result.getStdOut().trim();
|
||||
setAvailable(true);
|
||||
logger.info("Using PDF Renderer: "+this.versionString);
|
||||
}
|
||||
else
|
||||
{
|
||||
setAvailable(false);
|
||||
logger.error("Alfresco-PDF-Renderer is not available for transformations.\n"+result.toString());
|
||||
}
|
||||
}
|
||||
catch (Throwable e)
|
||||
{
|
||||
setAvailable(false);
|
||||
logger.error(getClass().getSimpleName() + " not available: " + (e.getMessage() != null ? e.getMessage() : ""));
|
||||
// debug so that we can trace the issue if required
|
||||
logger.debug(e);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @return Returns true if the transformer is functioning otherwise false
|
||||
*/
|
||||
@Override
|
||||
public boolean isAvailable()
|
||||
{
|
||||
return available;
|
||||
}
|
||||
|
||||
/**
|
||||
* Make the transformer available
|
||||
*
|
||||
* @param available boolean
|
||||
*/
|
||||
protected void setAvailable(boolean available)
|
||||
{
|
||||
this.available = available;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getVersionString()
|
||||
{
|
||||
return this.versionString;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean isTransformable(String sourceMimetype, String targetMimetype, TransformationOptions options)
|
||||
{
|
||||
if (!available)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
// Add limited support (so lots of other transforms are not supported)
|
||||
// for PDF to PNG.
|
||||
if ((MimetypeMap.MIMETYPE_PDF.equals(sourceMimetype) || MimetypeMap.MIMETYPE_APPLICATION_ILLUSTRATOR.equals(sourceMimetype)) &&
|
||||
MimetypeMap.MIMETYPE_IMAGE_PNG.equals(targetMimetype))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void transform(ContentReader reader, ContentWriter writer, TransformationOptions options) throws Exception
|
||||
{
|
||||
// get mimetypes
|
||||
String sourceMimetype = getMimetype(reader);
|
||||
String targetMimetype = getMimetype(writer);
|
||||
|
||||
// get the extensions to use
|
||||
MimetypeService mimetypeService = getMimetypeService();
|
||||
String sourceExtension = mimetypeService.getExtension(sourceMimetype);
|
||||
String targetExtension = mimetypeService.getExtension(targetMimetype);
|
||||
if (sourceExtension == null || targetExtension == null)
|
||||
{
|
||||
throw new AlfrescoRuntimeException("Unknown extensions for mimetypes: \n" +
|
||||
" source mimetype: " + sourceMimetype + "\n" +
|
||||
" source extension: " + sourceExtension + "\n" +
|
||||
" target mimetype: " + targetMimetype + "\n" +
|
||||
" target extension: " + targetExtension);
|
||||
}
|
||||
|
||||
// create required temp files
|
||||
File sourceFile = TempFileProvider.createTempFile(getClass().getSimpleName() + "_source_", "." + sourceExtension);
|
||||
File targetFile = TempFileProvider.createTempFile(getClass().getSimpleName() + "_target_", "." + targetExtension);
|
||||
|
||||
// pull reader file into source temp file
|
||||
reader.getContent(sourceFile);
|
||||
|
||||
transformInternal(sourceFile, sourceMimetype, targetFile, targetMimetype, options);
|
||||
|
||||
// check that the file was created
|
||||
if (!targetFile.exists() || targetFile.length() == 0)
|
||||
{
|
||||
throw new ContentIOException("alfresco-pdf-renderer transformation failed to write output file");
|
||||
}
|
||||
|
||||
// upload the output image
|
||||
writer.putContent(targetFile);
|
||||
|
||||
// done
|
||||
if (logger.isDebugEnabled())
|
||||
{
|
||||
logger.debug("Transformation completed: \n" +
|
||||
" source: " + reader + "\n" +
|
||||
" target: " + writer + "\n" +
|
||||
" options: " + options);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Transform the pdf content from the source file to the target file
|
||||
*/
|
||||
|
||||
private void transformInternal(File sourceFile, String sourceMimetype, File targetFile, String targetMimetype, TransformationOptions options) throws Exception
|
||||
{
|
||||
Map<String, String> properties = new HashMap<String, String>(5);
|
||||
// set properties
|
||||
if (options instanceof ImageTransformationOptions)
|
||||
{
|
||||
ImageTransformationOptions imageOptions = (ImageTransformationOptions) options;
|
||||
ImageResizeOptions resizeOptions = imageOptions.getResizeOptions();
|
||||
String commandOptions = imageOptions.getCommandOptions();
|
||||
if (commandOptions == null)
|
||||
{
|
||||
commandOptions = "";
|
||||
}
|
||||
|
||||
if (resizeOptions.getHeight() > -1)
|
||||
{
|
||||
commandOptions += " --height=" + resizeOptions.getHeight();
|
||||
}
|
||||
if (resizeOptions.getWidth() > -1)
|
||||
{
|
||||
commandOptions += " --width=" + resizeOptions.getHeight();
|
||||
}
|
||||
if (resizeOptions.getAllowEnlargement())
|
||||
{
|
||||
commandOptions += " --allow-enlargement";
|
||||
}
|
||||
if (resizeOptions.isMaintainAspectRatio())
|
||||
{
|
||||
commandOptions += " --maintain-aspect-ratio";
|
||||
}
|
||||
commandOptions += " --page=" + getSourcePageRange(imageOptions, sourceMimetype, targetMimetype);
|
||||
|
||||
properties.put(KEY_OPTIONS, commandOptions);
|
||||
}
|
||||
|
||||
properties.put(VAR_SOURCE, sourceFile.getAbsolutePath());
|
||||
properties.put(VAR_TARGET, targetFile.getAbsolutePath());
|
||||
|
||||
// execute the statement
|
||||
long timeoutMs = options.getTimeoutMs();
|
||||
RuntimeExec.ExecutionResult result = executer.execute(properties, timeoutMs);
|
||||
if (result.getExitValue() != 0 && result.getStdErr() != null && result.getStdErr().length() > 0)
|
||||
{
|
||||
throw new ContentIOException("Failed to perform alfresco-pdf-renderer transformation: \n" + result);
|
||||
}
|
||||
// success
|
||||
if (logger.isDebugEnabled())
|
||||
{
|
||||
logger.debug("alfresco-pdf-renderer executed successfully: \n" + executer);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public String getComments(boolean available)
|
||||
{
|
||||
StringBuilder sb = new StringBuilder();
|
||||
sb.append("# Supports transformations between mimetypes");
|
||||
sb.append("# pdf or ai to png.\n");
|
||||
return sb.toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* Gets the page range from the source to use in the command line.
|
||||
*
|
||||
* @param options the transformation options
|
||||
* @param sourceMimetype the source mimetype
|
||||
* @param targetMimetype the target mimetype
|
||||
* @return the source page range for the command line
|
||||
*/
|
||||
private String getSourcePageRange(TransformationOptions options, String sourceMimetype, String targetMimetype)
|
||||
{
|
||||
if (options instanceof ImageTransformationOptions)
|
||||
{
|
||||
ImageTransformationOptions imageOptions = (ImageTransformationOptions) options;
|
||||
PagedSourceOptions pagedSourceOptions = imageOptions.getSourceOptions(PagedSourceOptions.class);
|
||||
if (pagedSourceOptions != null)
|
||||
{
|
||||
if (pagedSourceOptions.getStartPageNumber() != null && pagedSourceOptions.getEndPageNumber() != null)
|
||||
{
|
||||
if (pagedSourceOptions.getStartPageNumber().equals(pagedSourceOptions.getEndPageNumber()))
|
||||
{
|
||||
return "" + (pagedSourceOptions.getStartPageNumber() - 1);
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new AlfrescoRuntimeException("The alfresco-pdf-renderer can only convert single pages, no page ranges.");
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
throw new AlfrescoRuntimeException("The alfresco-pdf-renderer can only convert single pages, no page ranges.");
|
||||
}
|
||||
}
|
||||
}
|
||||
return "0";
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user