Java tutorial
/* * Copyright (C) 2000 - 2013 Silverpeas * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * As a special exception to the terms and conditions of version 3.0 of * the GPL, you may redistribute this Program in connection with Free/Libre * Open Source Software ("FLOSS") applications as described in Silverpeas's * FLOSS exception. You should have recieved a copy of the text describing * the FLOSS exception, and it is also available here: * "http://www.silverpeas.org/docs/core/legal/floss_exception.html" * * 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.silverpeas.viewer.util; import java.io.File; import java.util.HashMap; import java.util.List; import java.util.Map; import org.silverpeas.exec.ExternalExecution; import org.silverpeas.exec.ExternalExecutionException; import org.silverpeas.viewer.SwfToolManager; import org.silverpeas.viewer.exception.PreviewException; import com.silverpeas.util.StringUtil; import org.apache.commons.exec.CommandLine; import org.apache.commons.io.FileUtils; import static org.apache.commons.io.FilenameUtils.*; /** * Some centralized tools to use SwfTools API * * @author Yohann Chastagnier */ public class SwfUtil extends ExternalExecution { public static final String SWF_DOCUMENT_EXTENSION = "swf"; public static final String PAGE_FILENAME_SEPARATOR = "-"; private static final String OUTPUT_COMMAND = "-o"; private static final String TO_SWF_ENDING_COMMAND = "-f -T 9 -t -s storeallcharacters"; /** * Indicates if Swf utils is activated * * @return */ public static boolean isActivated() { return SwfToolManager.isActivated(); } /** * Converts a PDF file into an image file. * * @param fileIn the pdf file * @param fileOut the image file */ public static void fromPdfToImage(final File fileIn, final File fileOut) { // First Step : converting first page of PDF file into a SWF file final File swfFile = changeFileExtension(fileOut, SWF_DOCUMENT_EXTENSION); fromPdfToSwf(fileIn, swfFile, false, "-p 1-1"); // Secong Step : converting SFW file into image file fromSwfToImage(swfFile, fileOut); FileUtils.deleteQuietly(swfFile); } /** * Converts a SWF file into an image file. * * @param fileIn the Swf file * @param fileOut the image file */ public static void fromSwfToImage(final File fileIn, final File fileOut) { try { exec(buildSwfToImageCommandLine(fileIn, fileOut)); } catch (ExternalExecutionException e) { throw new PreviewException(e); } } /** * Converts a PDF file into a SWF file. * * @param fileIn the pdf file * @param fileOut the swf file */ public static void fromPdfToSwf(final File fileIn, final File fileOut) { fromPdfToSwf(fileIn, fileOut, false); } /** * Converts a PDF file into a SWF file. * * @param fileIn the pdf file * @param fileOut the swf file * @param oneFilePerPage if true it activates one swf file per page */ public static void fromPdfToSwf(final File fileIn, final File fileOut, final boolean oneFilePerPage) { fromPdfToSwf(fileIn, fileOut, oneFilePerPage, null); } /** * Converts a PDF file into a SWF file. * * @param fileIn the pdf file * @param fileOut the swf file * @param oneFilePerPage if true it activates one swf file per page * @param endingCommand */ public static void fromPdfToSwf(final File fileIn, final File fileOut, final boolean oneFilePerPage, final String endingCommand) { File outputFile = fileOut; if (oneFilePerPage) { final StringBuilder onePageFile = new StringBuilder(512); onePageFile.append(getFullPath(fileOut.getPath())); onePageFile.append(getBaseName(fileOut.getPath())); onePageFile.append(PAGE_FILENAME_SEPARATOR); onePageFile.append("%."); onePageFile.append(getExtension(fileOut.getPath())); outputFile = new File(onePageFile.toString()); } try { exec(buildPdfToSwfCommandLine(endingCommand, fileIn, outputFile)); } catch (ExternalExecutionException e) { throw new PreviewException(e); } } /** * Return some document info from a PDF file * * @param pdfFile * @return */ public static DocumentInfo getPdfDocumentInfo(final File pdfFile) { List<String> execResult = null; try { execResult = exec(buildPdfDocumentInfoCommandLine(pdfFile)); } catch (ExternalExecutionException e) { throw new ExternalExecutionException(e); } return new DocumentInfo().addFromSwfToolsOutput(execResult); } /** * Changes the extension of a file * * @param fileExtension * @return */ private static File changeFileExtension(final File file, final String fileExtension) { return new File(getFullPath(file.getPath()) + getBaseName(file.getPath()) + '.' + fileExtension); } static CommandLine buildPdfToSwfCommandLine(final String endingCommand, File inputFile, File outputFile) { Map<String, File> files = new HashMap<String, File>(2); files.put("inputFile", inputFile); files.put("outputFile", outputFile); CommandLine commandLine = new CommandLine("pdf2swf"); commandLine.addArgument("${inputFile}", false); commandLine.addArgument(OUTPUT_COMMAND); commandLine.addArgument("${outputFile}", false); commandLine.addArguments(TO_SWF_ENDING_COMMAND, false); if (StringUtil.isDefined(endingCommand)) { commandLine.addArguments(endingCommand, false); } commandLine.setSubstitutionMap(files); return commandLine; } static CommandLine buildPdfDocumentInfoCommandLine(File file) { Map<String, File> files = new HashMap<String, File>(1); files.put("file", file); CommandLine commandLine = new CommandLine("pdf2swf"); commandLine.addArgument("-qq"); commandLine.addArgument("${file}", false); commandLine.addArgument("--info"); commandLine.setSubstitutionMap(files); return commandLine; } static CommandLine buildSwfToImageCommandLine(File inputFile, File outputFile) { Map<String, File> files = new HashMap<String, File>(2); files.put("inputFile", inputFile); files.put("outputFile", outputFile); CommandLine commandLine = new CommandLine("swfrender"); commandLine.addArgument("${inputFile}", false); commandLine.addArgument(OUTPUT_COMMAND); commandLine.addArgument("${outputFile}", false); commandLine.setSubstitutionMap(files); return commandLine; } }