Java tutorial
/* DA-NRW Software Suite | ContentBroker Copyright (C) 2013 Historisch-Kulturwissenschaftliche Informationsverarbeitung Universitt zu Kln This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. * Adds DOXC Conversion by calling a Webservice for conversion. * Actually, the webservice does a conversion to PDF1.5 by using MS Office(R). * * The webservice has to be deployed on a Windows Server(R) compliant host. * The recieved file is converted by calling the Ghostscript PDF/A conversion. * * The webservice itself is not part of this sourcecode package. * * @Author: Jens Peters * */ package de.uzk.hki.da.format; import java.io.File; import java.io.FileNotFoundException; import java.io.IOException; import java.util.ArrayList; import java.util.Date; import java.util.List; import org.apache.commons.io.FileUtils; import org.apache.commons.io.FilenameUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import de.uzk.hki.da.model.ConversionInstruction; import de.uzk.hki.da.model.DAFile; import de.uzk.hki.da.model.Event; import de.uzk.hki.da.model.Object; import de.uzk.hki.da.model.Package; import de.uzk.hki.da.utils.SimplifiedCommandLineConnector; import de.uzk.hki.da.utils.Utilities; import de.uzk.hki.da.webservice.HttpFileTransmissionClient; /** * The Class DocxConversionStrategy. */ public class DocxConversionStrategy implements ConversionStrategy { /** The logger. */ private static Logger logger = LoggerFactory.getLogger(DocxConversionStrategy.class); /** The cli connector. */ private SimplifiedCommandLineConnector cliConnector; /** The pkg. */ Package pkg; /** The object. */ Object object; private HttpFileTransmissionClient httpclient; /* (non-Javadoc) * @see de.uzk.hki.da.convert.ConversionStrategy#setParam(java.lang.String) */ @Override public void setParam(String param) { } /* (non-Javadoc) * @see de.uzk.hki.da.convert.ConversionStrategy#setCLIConnector(de.uzk.hki.da.convert.CLIConnector) */ @Override public void setCLIConnector(SimplifiedCommandLineConnector cliConnector) { this.cliConnector = cliConnector; } public DocxConversionStrategy() { setHttpclient(new HttpFileTransmissionClient()); } /* (non-Javadoc) * @see de.uzk.hki.da.convert.ConversionStrategy#convertFile(de.uzk.hki.da.model.ConversionInstruction) */ @Override public List<Event> convertFile(ConversionInstruction ci) throws FileNotFoundException { if (ci.getConversion_routine() == null) throw new IllegalStateException("conversionRoutine not set"); if (ci.getConversion_routine().getTarget_suffix().isEmpty()) throw new IllegalStateException("target suffix in conversionRoutine not set"); if (ci.getConversion_routine().getParams() == null) throw new IllegalStateException("add params not set"); if (cliConnector == null) throw new IllegalStateException("Cli Connector is not set"); File result = new File(generateTargetFilePath(ci)); List<Event> results = new ArrayList<Event>(); getHttpclient().setUrl(ci.getConversion_routine().getParams()); getHttpclient() .setSourceMimeType("application/vnd.openxmlformats-officedocument.wordprocessingml.document"); getHttpclient().postFileAndReadResponse(ci.getSource_file().toRegularFile(), result); if (result.exists()) { DAFile daf = new DAFile(pkg, object.getPath("newest").getLastElement(), Utilities.slashize(ci.getTarget_folder()) + result.getName()); logger.debug("new dafile:" + daf); // TODO Doing PDF/A Conversion with a temp file, due to recieve PDF 1.5 from MS instead of PDF/A . // This should be the same command for "normal" PDFs // read it from Database? File tempFile = new File("/" + FilenameUtils.getPath(daf.toRegularFile().getAbsolutePath()) + "_" + daf.toRegularFile().getName()); String commandAsArray[] = new String[] { "gs", "-q", "-dPDFA", "-dPDFACompatibilityPolicy=1", "-dBATCH", "-dNOPAUSE", "-dNOOUTERSAVE", "-dUseCIEColor", "-sProcessColorModel=DeviceCMYK", "-sDEVICE=pdfwrite", "-sOutputFile=" + tempFile.getAbsolutePath(), "conf/PDFA_def.ps", daf.toRegularFile().getAbsolutePath() }; if (!cliConnector.execute(commandAsArray)) { throw new RuntimeException("GS command not succeeded"); } try { if (tempFile.exists()) { result.delete(); FileUtils.moveFile(tempFile, daf.toRegularFile()); } else throw new RuntimeException("temp file " + tempFile.getAbsolutePath() + " was not created!"); } catch (IOException e1) { throw new RuntimeException("MV command not succeeded on temp file " + tempFile.getAbsolutePath(), e1); } PdfService.validatePdfA(daf.toRegularFile()); Event e = new Event(); e.setType("CONVERT"); e.setDetail("Webservice DOCX2PDF " + ci.getConversion_routine().getParams() + " AND " + Utilities.createString(commandAsArray)); e.setSource_file(daf); e.setTarget_file(daf); e.setDate(new Date()); results.add(e); } else throw new RuntimeException("Target File not found! " + result.getAbsolutePath()); return results; } /** * Generate target file path. * * @param ci the ci * @return the string */ public String generateTargetFilePath(ConversionInstruction ci) { String input = ci.getSource_file().toRegularFile().getAbsolutePath(); return object.getPath("newest") + "/" + Utilities.slashize(ci.getTarget_folder()) + FilenameUtils.getBaseName(input) + "." + ci.getConversion_routine().getTarget_suffix(); } /* (non-Javadoc) * @see de.uzk.hki.da.convert.ConversionStrategy#setObject(de.uzk.hki.da.model.Object) */ @Override public void setObject(Object obj) { this.object = obj; this.pkg = obj.getLatestPackage(); } /** * @return the httpclient */ public HttpFileTransmissionClient getHttpclient() { return httpclient; } /** * @param httpclient the httpclient to set */ public void setHttpclient(HttpFileTransmissionClient httpclient) { this.httpclient = httpclient; } }