| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.cli; |
| |
| import java.io.File; |
| import java.io.FileFilter; |
| import java.io.OutputStream; |
| import java.lang.reflect.Method; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.util.List; |
| |
| import org.apache.commons.io.IOUtils; |
| |
| import org.apache.fop.apps.FOUserAgent; |
| import org.apache.fop.apps.MimeConstants; |
| |
| /** |
| * Main command-line class for Apache FOP. |
| */ |
| public final class Main { |
| |
| private Main() { |
| } |
| |
| /** |
| * @return the list of URLs to all libraries. |
| * @throws MalformedURLException In case there is a problem converting java.io.File |
| * instances to URLs. |
| */ |
| public static URL[] getJARList() throws MalformedURLException { |
| String fopHome = System.getProperty("fop.home"); |
| File baseDir; |
| if (fopHome != null) { |
| baseDir = new File(fopHome).getAbsoluteFile(); |
| } else { |
| baseDir = new File(".").getAbsoluteFile().getParentFile(); |
| } |
| File buildDir; |
| if ("build".equals(baseDir.getName())) { |
| buildDir = baseDir; |
| baseDir = baseDir.getParentFile(); |
| } else { |
| buildDir = new File(baseDir, "build"); |
| } |
| File fopJar = new File(buildDir, "fop.jar"); |
| if (!fopJar.exists()) { |
| fopJar = new File(baseDir, "fop.jar"); |
| } |
| if (!fopJar.exists()) { |
| throw new RuntimeException("fop.jar not found in directory: " |
| + baseDir.getAbsolutePath() + " (or below)"); |
| } |
| List jars = new java.util.ArrayList(); |
| jars.add(fopJar.toURI().toURL()); |
| File[] files; |
| FileFilter filter = new FileFilter() { |
| public boolean accept(File pathname) { |
| return pathname.getName().endsWith(".jar"); |
| } |
| }; |
| File libDir = new File(baseDir, "lib"); |
| if (!libDir.exists()) { |
| libDir = baseDir; |
| } |
| files = libDir.listFiles(filter); |
| if (files != null) { |
| for (int i = 0, size = files.length; i < size; i++) { |
| jars.add(files[i].toURI().toURL()); |
| } |
| } |
| String optionalLib = System.getProperty("fop.optional.lib"); |
| if (optionalLib != null) { |
| files = new File(optionalLib).listFiles(filter); |
| if (files != null) { |
| for (int i = 0, size = files.length; i < size; i++) { |
| jars.add(files[i].toURI().toURL()); |
| } |
| } |
| } |
| URL[] urls = (URL[])jars.toArray(new URL[jars.size()]); |
| /* |
| for (int i = 0, c = urls.length; i < c; i++) { |
| System.out.println(urls[i]); |
| }*/ |
| return urls; |
| } |
| |
| /** |
| * @return true if FOP's dependecies are available in the current ClassLoader setup. |
| */ |
| public static boolean checkDependencies() { |
| try { |
| //System.out.println(Thread.currentThread().getContextClassLoader()); |
| Class clazz = Class.forName("org.apache.commons.io.IOUtils"); |
| if (clazz != null) { |
| clazz = Class.forName("org.apache.avalon.framework.configuration.Configuration"); |
| } |
| return (clazz != null); |
| } catch (Exception e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Dynamically builds a ClassLoader and executes FOP. |
| * @param args command-line arguments |
| */ |
| public static void startFOPWithDynamicClasspath(String[] args) { |
| try { |
| URL[] urls = getJARList(); |
| //System.out.println("CCL: " |
| // + Thread.currentThread().getContextClassLoader().toString()); |
| ClassLoader loader = new java.net.URLClassLoader(urls, null); |
| Thread.currentThread().setContextClassLoader(loader); |
| Class clazz = Class.forName("org.apache.fop.cli.Main", true, loader); |
| //System.out.println("CL: " + clazz.getClassLoader().toString()); |
| Method mainMethod = clazz.getMethod("startFOP", new Class[] {String[].class}); |
| mainMethod.invoke(null, new Object[] {args}); |
| } catch (Exception e) { |
| System.err.println("Unable to start FOP:"); |
| e.printStackTrace(); |
| System.exit(-1); |
| } |
| } |
| |
| /** |
| * Executes FOP with the given arguments. If no argument is provided, returns its |
| * version number as well as a short usage statement; if '-v' is provided, returns its |
| * version number alone; if '-h' is provided, returns its short help message. |
| * |
| * @param args command-line arguments |
| */ |
| public static void startFOP(String[] args) { |
| //System.out.println("static CCL: " |
| // + Thread.currentThread().getContextClassLoader().toString()); |
| //System.out.println("static CL: " + Fop.class.getClassLoader().toString()); |
| CommandLineOptions options = null; |
| FOUserAgent foUserAgent = null; |
| OutputStream out = null; |
| |
| try { |
| options = new CommandLineOptions(); |
| if (!options.parse(args)) { |
| System.exit(0); |
| } |
| |
| foUserAgent = options.getFOUserAgent(); |
| String outputFormat = options.getOutputFormat(); |
| |
| try { |
| if (options.getOutputFile() != null) { |
| out = new java.io.BufferedOutputStream( |
| new java.io.FileOutputStream(options.getOutputFile())); |
| foUserAgent.setOutputFile(options.getOutputFile()); |
| } else if (options.isOutputToStdOut()) { |
| out = new java.io.BufferedOutputStream(System.out); |
| } |
| if (!MimeConstants.MIME_XSL_FO.equals(outputFormat)) { |
| options.getInputHandler().renderTo(foUserAgent, outputFormat, out); |
| } else { |
| options.getInputHandler().transformTo(out); |
| } |
| } finally { |
| IOUtils.closeQuietly(out); |
| } |
| |
| // System.exit(0) called to close AWT/SVG-created threads, if any. |
| // AWTRenderer closes with window shutdown, so exit() should not |
| // be called here |
| if (!MimeConstants.MIME_FOP_AWT_PREVIEW.equals(outputFormat)) { |
| System.exit(0); |
| } |
| } catch (Exception e) { |
| if (options != null) { |
| options.getLogger().error("Exception", e); |
| if (options.getOutputFile() != null) { |
| options.getOutputFile().delete(); |
| } |
| } |
| System.exit(1); |
| } |
| } |
| |
| /** |
| * The main routine for the command line interface |
| * @param args the command line parameters |
| */ |
| public static void main(String[] args) { |
| if (checkDependencies()) { |
| startFOP(args); |
| } else { |
| startFOPWithDynamicClasspath(args); |
| } |
| } |
| |
| } |