Java tutorial
/***************************************************************************** * * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * ****************************************************************************/ package org.apache.pdfbox.preflight; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import javax.activation.FileDataSource; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import org.apache.commons.io.IOUtils; import org.apache.pdfbox.preflight.ValidationResult.ValidationError; import org.apache.pdfbox.preflight.exception.SyntaxValidationException; import org.apache.pdfbox.preflight.parser.PreflightParser; import org.apache.pdfbox.preflight.parser.XmlResultParser; import org.apache.pdfbox.util.Version; import org.w3c.dom.Document; import org.w3c.dom.Element; /** * This class is a simple main class used to check the validity of a pdf file. * * Usage : java net.awl.edoc.pdfa.Validator <file path> * * @author gbailleul * */ public class Validator_A1b { public static void main(String[] args) throws IOException, TransformerException, ParserConfigurationException { if (args.length == 0) { usage(); System.exit(1); } // is output xml ? int posFile = 0; boolean outputXml = "xml".equals(args[posFile]); posFile += outputXml ? 1 : 0; // list boolean isGroup = "group".equals(args[posFile]); posFile += isGroup ? 1 : 0; // list boolean isBatch = "batch".equals(args[posFile]); posFile += isBatch ? 1 : 0; if (isGroup || isBatch) { // prepare the list List<File> ftp = listFiles(args[posFile]); int status = 0; if (!outputXml) { // simple list of files for (File file2 : ftp) { status |= runSimple(file2); } System.exit(status); } else { Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); XmlResultParser xrp = new XmlResultParser(); if (isGroup) { Document document = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument(); Element root = document.createElement("preflights"); document.appendChild(root); root.setAttribute("count", String.format("%d", ftp.size())); for (File file : ftp) { Element result = xrp.validate(document, new FileDataSource(file)); root.appendChild(result); } transformer.transform(new DOMSource(document), new StreamResult(new File(args[posFile] + ".preflight.xml"))); } else { // isBatch for (File file : ftp) { Element result = xrp.validate(new FileDataSource(file)); Document document = result.getOwnerDocument(); document.appendChild(result); transformer.transform(new DOMSource(document), new StreamResult(new File(file.getAbsolutePath() + ".preflight.xml"))); } } } } else { if (!outputXml) { // simple validation System.exit(runSimple(new File(args[posFile]))); } else { // generate xml output XmlResultParser xrp = new XmlResultParser(); Element result = xrp.validate(new FileDataSource(args[posFile])); Document document = result.getOwnerDocument(); document.appendChild(result); Transformer transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.INDENT, "yes"); transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2"); transformer.transform(new DOMSource(document), new StreamResult(System.out)); } } } private static void usage() throws IOException { String version = Version.getVersion(); System.out.println("Usage : java org.apache.pdfbox.preflight.Validator_A1b [xml] [<mode>] <file path>"); System.out.println(); System.out.println(" * xml : if set, generate xml output instead of text"); System.out.println( " * <mode> : if set, <file path> must be a file containing the PDF files to parse. <mode> can have 2 values:"); System.out.println(" batch : generate xml result files for each PDF file in the list"); System.out.println(" group : generate one xml result file for all the PDF files in the list."); System.out.println("Version : " + version); } private static int runSimple(File file) throws IOException { ValidationResult result; PreflightParser parser = new PreflightParser(file); try { parser.parse(); PreflightDocument document = parser.getPreflightDocument(); document.validate(); result = document.getResult(); document.close(); } catch (SyntaxValidationException e) { result = e.getResult(); } if (result.isValid()) { System.out.println("The file " + file.getName() + " is a valid PDF/A-1b file"); System.out.println(); return 0; } else { System.out.println("The file " + file.getName() + " is not valid, error(s) :"); for (ValidationError error : result.getErrorsList()) { System.out.print(error.getErrorCode() + " : " + error.getDetails()); if (error.getPageNumber() != null) { System.out.println(" on page " + (error.getPageNumber() + 1)); } else { System.out.println(); } } System.out.println(); return -1; } } private static List<File> listFiles(String path) throws IOException { List<File> files = new ArrayList<File>(); File f = new File(path); if (f.isFile()) { FileReader fr = new FileReader(f); BufferedReader buf = new BufferedReader(fr); while (buf.ready()) { File fn = new File(buf.readLine()); if (fn.exists()) { files.add(fn); } // else warn ? } IOUtils.closeQuietly(buf); } else { File[] fileList = f.listFiles(); if (fileList != null) { files.addAll(Arrays.asList(fileList)); } } return files; } }