- /*
- * 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.security.AccessController;
- import java.security.PrivilegedAction;
- 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 (File file : files) {
- jars.add(file.toURI().toURL());
- }
- }
- String optionalLib = System.getProperty("fop.optional.lib");
- if (optionalLib != null) {
- files = new File(optionalLib).listFiles(filter);
- if (files != null) {
- for (File file : files) {
- jars.add(file.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");
- 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 {
- final URL[] urls = getJARList();
- //System.out.println("CCL: "
- // + Thread.currentThread().getContextClassLoader().toString());
- ClassLoader loader = (ClassLoader)
- AccessController.doPrivileged(new PrivilegedAction() {
- public Object run() {
- return 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();
- // @SuppressFBWarnings("DM_EXIT")
- 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)) {
- // @SuppressFBWarnings("DM_EXIT")
- 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);
- }
- }
-
- }
|