diff options
Diffstat (limited to 'ridljar/source/unoloader/com/sun/star/lib')
3 files changed, 289 insertions, 0 deletions
diff --git a/ridljar/source/unoloader/com/sun/star/lib/unoloader/UnoClassLoader.java b/ridljar/source/unoloader/com/sun/star/lib/unoloader/UnoClassLoader.java new file mode 100644 index 000000000..822d1609c --- /dev/null +++ b/ridljar/source/unoloader/com/sun/star/lib/unoloader/UnoClassLoader.java @@ -0,0 +1,203 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +package com.sun.star.lib.unoloader; + +import java.io.IOException; +import java.lang.reflect.InvocationTargetException; +import java.net.MalformedURLException; +import java.net.URL; +import java.net.URLClassLoader; +import java.util.jar.Attributes; +import java.util.jar.Manifest; +import java.util.jar.JarInputStream; + +/** + * The root UNO class loader. + * + * <p>This class loader is able to load all published URE classes, including the + * classes representing the published URE UNO types. For consistency, it is + * important that within each Java UNO environment there is one instance of this + * class loader that is the defining class loader of all published URE classes + * (and hence of all unpublished URE classes, too) and of all classes + * representing UNO types (the published URE UNO types, any unpublished URE UNO + * types, and any additional UNO types introduced by components; for the latter, + * {@link #addURL} may be necessary).</p> + * + * <p><em>This is an internal, unstable class of the Uno Runtime Environment; it + * should not be used by client code.</em></p> + * + * @since UDK 3.2.0 + */ +public final class UnoClassLoader extends URLClassLoader { + /** + * Instantiates the root UNO class loader. + * + * @param base a base URL relative to which the URE JARs + * (<code>java_uno.jar</code> and <code>libreoffice.jar</code>) + * can be found; must not be <code>null</code>. + * + * @param classPath an array of URLs that form the class path of this class + * loader; may be <code>null</code>, which is the same as an empty array. + * The URLs are interpreted in the same way as the arguments of a {@link + * URLClassLoader}. + * + * @param parent the parent class loader for delegation. + * + * @throws MalformedURLException if the given <code>base</code> URL is + * malformed. + */ + public UnoClassLoader(URL base, URL[] classPath, ClassLoader parent) + throws MalformedURLException + { + super(createUrls(base, classPath), parent); + } + + /** + * Obtains a class loader for a UNO JAR. + * + * @param jar the URL of a UNO JAR; must not be <code>null</code>. + * + * @param mainAttributes represents the main section of the manifest of the + * given JAR <code>jar</code>; <code>null</code> if the given JAR does not + * have a manifest. (This redundant parameter is there for performance + * reasons, as typically the caller of this method already has this + * information available.) + * + * @return an appropriate class loader; will never be <code>null</code>. + * + * @throws MalformedURLException if the given <code>jar</code> URL or any of + * the UNO-Type-Path URLs specified in the given JAR are malformed. + */ + public ClassLoader getClassLoader(URL jar, Attributes mainAttributes) + throws MalformedURLException + { + String path = mainAttributes == null ? + null : mainAttributes.getValue("UNO-Type-Path"); + if (path == null) { + path = "<>"; + } + for (int i = 0; i < path.length();) { + while (i < path.length() && path.charAt(i) == ' ') { + ++i; + } + if (i < path.length()) { + String url; + if (path.charAt(i) == '<') { + int j = path.indexOf('>', i + 1); + if (j < 0) { + url = path.substring(i + 1); + i = path.length(); + } else { + url = path.substring(i + 1, j); + i = j + 1; + } + } else { + int j = path.indexOf(' ', i + 1); + if (j < 0) { + j = path.length(); + } + url = path.substring(i, j); + i = j; + } + addURL(new URL(jar, url)); + } + } + return URLClassLoader.newInstance(new URL[] { jar }, this); + } + + /** + * Executes a UNO JAR. + * + * @param jar the URL of a UNO JAR that specifies a Main-Class; must not be + * <code>null</code>. + * + * @param arguments any arguments passed to the <code>main</code> method of + * the specified Main-Class of the given JAR <code>jar</code>; must not be + * <code>null</code>. + * + * @throws IOException if there are any problems processing the given JAR + * <code>jar</code>. + * + * @throws ClassNotFoundException if the given JAR <code>jar</code> does not + * specify a Main-Class, or if the specified Main-Class cannot be found. + * + * @throws NoSuchMethodException if the specified Main-Class of the given + * JAR <code>jar</code> does not have an appropriate <code>main</code> + * method. + * + * @throws InvocationTargetException if an exception occurs while executing + * the <code>main</code> method of the specified Main-Class of the given JAR + * <code>jar</code>. + */ + public void execute(URL jar, String[] arguments) + throws IOException, ClassNotFoundException, NoSuchMethodException, + InvocationTargetException + { + Attributes attr = getJarMainAttributes(jar); + String name = attr == null + ? null : attr.getValue(Attributes.Name.MAIN_CLASS); + if (name == null) { + throw new ClassNotFoundException( + jar + " does not specify a main class"); + } + try { + getClassLoader(jar, attr).loadClass(name.replace('/', '.')). + getMethod("main", new Class[] { String[].class }). + invoke(null, new Object[] { arguments }); + } catch (IllegalAccessException e) { + throw new RuntimeException("impossible " + e); + } + } + + /** + * Obtains the main section of the manifest of a JAR. + * + * @param jar the URL of a JAR; must not be <code>null</code>. + * + * @return the representation of the main section of the manifest of the + * given JAR <code>jar</code>, or <code>null</code> if the given JAR does + * not have a manifest. + * + * @throws IOException if there are any problems processing the given JAR + * <code>jar</code>. + */ + public static Attributes getJarMainAttributes(URL jar) throws IOException { + JarInputStream s = new JarInputStream(jar.openStream()); + Manifest mf; + try { + mf = s.getManifest(); + } finally { + s.close(); + } + return mf == null ? null : mf.getMainAttributes(); + } + + private static URL[] createUrls(URL base, URL[] classPath) + throws MalformedURLException + { + final int JARS = 2; + URL[] urls = new URL[JARS + (classPath == null ? 0 : classPath.length)]; + urls[0] = new URL(base, "java_uno.jar"); //TODO get rid of it here + urls[1] = new URL(base, "libreoffice.jar"); + if (classPath != null) { + System.arraycopy(classPath, 0, urls, JARS, classPath.length); + } + return urls; + } +} diff --git a/ridljar/source/unoloader/com/sun/star/lib/unoloader/UnoLoader.java b/ridljar/source/unoloader/com/sun/star/lib/unoloader/UnoLoader.java new file mode 100644 index 000000000..23059b7b4 --- /dev/null +++ b/ridljar/source/unoloader/com/sun/star/lib/unoloader/UnoLoader.java @@ -0,0 +1,85 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ + +package com.sun.star.lib.unoloader; + +import java.io.IOException; +import java.lang.reflect.InvocationTargetException; +import java.net.MalformedURLException; +import java.net.URL; +import java.security.AccessController; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; + +/** + * A helper class for executing UNO JARs. + * + * <p><em>This class is not yet stable.</em></p> + * + * @since UDK 3.2.0 + */ +public final class UnoLoader { + /** + * Executes a UNO JAR. + * + * @param base a base URL relative to which the URE JARs + * (<code>libreoffice.jar</code>, etc.) can be found; must + * not be <code>null</code>. + * + * @param jar the URL of a UNO JAR that specifies a Main-Class; must not be + * <code>null</code>. + * + * @param arguments any arguments passed to the <code>main</code> method of + * the specified Main-Class of the given JAR <code>jar</code>; must not be + * <code>null</code>. + * + * @throws IOException if the given <code>base</code> URL is malformed, or + * if there are any problems processing the given JAR <code>jar</code>. + * + * @throws ClassNotFoundException if the given JAR <code>jar</code> does not + * specify a Main-Class, or if the specified Main-Class cannot be found. + * + * @throws NoSuchMethodException if the specified Main-Class of the given + * JAR <code>jar</code> does not have an appropriate <code>main</code> + * method. + * + * @throws InvocationTargetException if an exception occurs while executing + * the <code>main</code> method of the specified Main-Class of the given JAR + * <code>jar</code>. + */ + public static void execute(final URL base, URL jar, String[] arguments) + throws IOException, ClassNotFoundException, NoSuchMethodException, + InvocationTargetException + { + UnoClassLoader cl; + try { + cl = (UnoClassLoader) AccessController.doPrivileged( + new PrivilegedExceptionAction<Object>() { + public Object run() throws MalformedURLException { + return new UnoClassLoader( + base, null, UnoLoader.class.getClassLoader()); + } + }); + } catch (PrivilegedActionException e) { + throw (MalformedURLException) e.getException(); + } + cl.execute(jar, arguments); + } + + private UnoLoader() {} +} diff --git a/ridljar/source/unoloader/com/sun/star/lib/unoloader/manifest b/ridljar/source/unoloader/com/sun/star/lib/unoloader/manifest new file mode 100644 index 000000000..7ad02e156 --- /dev/null +++ b/ridljar/source/unoloader/com/sun/star/lib/unoloader/manifest @@ -0,0 +1 @@ +Sealed: true |