diff options
Diffstat (limited to 'java/sca/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java')
| -rw-r--r-- | java/sca/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java | 567 |
1 files changed, 0 insertions, 567 deletions
diff --git a/java/sca/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java b/java/sca/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java deleted file mode 100644 index 38dea77eda..0000000000 --- a/java/sca/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java +++ /dev/null @@ -1,567 +0,0 @@ -/* - * 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.tuscany.sca.node.launcher; - -import java.io.File; -import java.io.FileNotFoundException; -import java.io.FilenameFilter; -import java.io.IOException; -import java.io.Reader; -import java.lang.reflect.Constructor; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.net.MalformedURLException; -import java.net.URI; -import java.net.URISyntaxException; -import java.net.URL; -import java.net.URLClassLoader; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collection; -import java.util.Collections; -import java.util.Enumeration; -import java.util.HashSet; -import java.util.List; -import java.util.Set; -import java.util.StringTokenizer; -import java.util.logging.Level; -import java.util.logging.Logger; - -/** - * Common functions and constants used by the admin components. - * - * @version $Rev$ $Date$ - */ -final class NodeLauncherUtil { - private static final String NODE_FACTORY = "org.apache.tuscany.sca.node.NodeFactory"; - - private static final Logger logger = Logger.getLogger(NodeLauncherUtil.class.getName()); - - private static final String TUSCANY_HOME = "TUSCANY_HOME"; - private static final String TUSCANY_PATH = "TUSCANY_PATH"; - - - /** - * Returns a ClassLoader for the Tuscany runtime JARs for use in a standalone - * J2SE environment. - * - * @param parentClassLoader - * - * @return - */ - static ClassLoader standAloneRuntimeClassLoader(ClassLoader parentClassLoader) throws FileNotFoundException, URISyntaxException, MalformedURLException { - return runtimeClassLoader(parentClassLoader, new StandAloneJARFileNameFilter()); - } - - /** - * Returns a ClassLoader for the Tuscany runtime JARs for use in a Webapp - * environment. - * - * @param parentClassLoader - * - * @return - */ - static ClassLoader webAppRuntimeClassLoader(ClassLoader parentClassLoader) throws FileNotFoundException, URISyntaxException, MalformedURLException { - return runtimeClassLoader(parentClassLoader, new WebAppJARFileNameFilter()); - } - - /** - * Returns a ClassLoader for the Tuscany runtime JARs. - * - * @param parentClassLoader - * @param filter - * - * @return - */ - private static ClassLoader runtimeClassLoader(ClassLoader parentClassLoader, FilenameFilter filter) throws FileNotFoundException, URISyntaxException, MalformedURLException { - // First try to see if the runtime classes are already on the classpath - // If yes, skip the discovery to avoid duplicate jars - try { - Class.forName(NODE_FACTORY, false, parentClassLoader); - return parentClassLoader; - } catch (ClassNotFoundException e) { - // Ignore; - } - // Build list of runtime JARs - Set<URL> jarDirectoryURLs = new HashSet<URL>(); - Set<URL> jarURLs = new HashSet<URL>(); - - // First determine the path to the launcher class - String resource = NodeLauncherUtil.class.getName().replace('.', '/') + ".class"; - URL url = NodeLauncherUtil.class.getClassLoader().getResource(resource); - if (url == null) { - throw new FileNotFoundException(resource); - } - URI uri = url.toURI(); - - // If the launcher class is in a JAR, add all runtime JARs from directory containing - // that JAR (e.g. the Tuscany modules directory) as well as the ../modules and - // ../lib directories - String scheme = uri.getScheme(); - if (scheme.equals("jar")) { - String path = uri.toString().substring(4); - int i = path.indexOf("!/"); - if (i != -1) { - path = path.substring(0, i); - uri = URI.create(path); - } - - File file = new File(uri); - if (file.exists()) { - File jarDirectory = file.getParentFile(); - if (jarDirectory != null && jarDirectory.exists()) { - File homeDirectory = jarDirectory.getParentFile(); - if (homeDirectory != null && homeDirectory.exists()) { - collectJARFiles(homeDirectory.getPath(), jarDirectoryURLs, jarURLs, filter); - } - } - } - } - - // Look for a TUSCANY_HOME system property or environment variable - // Add all the JARs found under $TUSCANY_HOME, $TUSCANY_HOME/modules - // and $TUSCANY_HOME/lib - String home = System.getProperty(TUSCANY_HOME); - if (home == null || home.length() == 0) { - home = System.getenv(TUSCANY_HOME); - } - if (home != null && home.length() != 0) { - logger.fine(TUSCANY_HOME + ": " + home); - collectJARFiles(home, jarDirectoryURLs, jarURLs, filter); - } - - // Look for a TUSCANY_PATH system property or environment variable - // Add all the JARs found under $TUSCANY_PATH, $TUSCANY_PATH/modules - // and $TUSCANY_PATH/lib - String ext = System.getProperty(TUSCANY_PATH); - if (ext == null || ext.length() == 0) { - ext = System.getenv(TUSCANY_PATH); - } - if (ext != null && ext.length() != 0) { - logger.fine(TUSCANY_PATH + ": " + ext); - String separator = System.getProperty("path.separator"); - for (StringTokenizer tokens = new StringTokenizer(ext, separator); tokens.hasMoreTokens(); ) { - collectJARFiles(tokens.nextToken(), jarDirectoryURLs, jarURLs, filter); - } - } - - // Return the runtime class loader - if (!jarURLs.isEmpty()) { - // Remove the URLs which are already in the parent classloader - if (parentClassLoader instanceof URLClassLoader) { - URLClassLoader cl = (URLClassLoader)parentClassLoader; - jarURLs.removeAll(Arrays.asList(cl.getURLs())); - } - - // Return a ClassLoader configured with the runtime JARs - ClassLoader classLoader = new RuntimeClassLoader(jarURLs.toArray(new URL[jarURLs.size()]), parentClassLoader); - return classLoader; - - } else { - return null; - } - } - - /** - * Collect JAR files under the given directory. - * - * @param directory - * @param jarDirectoryURLs - * @param jarURLs - * @param filter - * @throws MalformedURLException - */ - private static void collectJARFiles(String directory, Set<URL> jarDirectoryURLs, Collection<URL> jarURLs, FilenameFilter filter) - throws MalformedURLException { - File directoryFile = new File(directory); - URL directoryURL = directoryFile.toURI().toURL(); - if (!jarDirectoryURLs.contains(directoryURL) && directoryFile.exists()) { - - // Collect files under $TUSCANY_HOME - jarDirectoryURLs.add(directoryURL); - collectJARFiles(directoryFile, jarURLs, filter, false); - - // Collect files under $TUSCANY_HOME/modules - File modulesDirectory = new File(directoryFile, "modules"); - URL modulesDirectoryURL = modulesDirectory.toURI().toURL(); - if (!jarDirectoryURLs.contains(modulesDirectoryURL) && modulesDirectory.exists()) { - jarDirectoryURLs.add(modulesDirectoryURL); - collectJARFiles(modulesDirectory, jarURLs, filter, true); - } - - // Collect files under $TUSCANY_HOME/lib - File libDirectory = new File(directoryFile, "lib"); - URL libDirectoryURL = libDirectory.toURI().toURL(); - if (!jarDirectoryURLs.contains(libDirectoryURL) && libDirectory.exists()) { - jarDirectoryURLs.add(libDirectoryURL); - collectJARFiles(libDirectory, jarURLs, filter, true); - } - } - } - - /** - * Collect JAR files in the given directory - * @param directory - * @param urls - * @param filter - * @param recursive - * @throws MalformedURLException - */ - private static void collectJARFiles(File directory, Collection<URL> urls, FilenameFilter filter, boolean recursive) throws MalformedURLException { - File[] files = directory.listFiles(filter); - if (files != null) { - int count = 0; - for (File file: files) { - if (recursive && file.isDirectory()) { - collectJARFiles(file, urls, filter, recursive); - } else if (file.isFile()) { - urls.add(file.toURI().toURL()); - count++; - } - } - if (count != 0 && logger.isLoggable(Level.FINE)) { - logger.fine("Runtime classpath: "+ count + " JAR" + (count > 1? "s":"")+ " from " + directory.toString()); - } - } - } - - /** - * A file name filter used to filter JAR files. - */ - private static class StandAloneJARFileNameFilter implements FilenameFilter { - - public boolean accept(File dir, String name) { - if(new File(dir, name).isDirectory()) { - return true; - } - name = name.toLowerCase(); - - // Exclude tuscany-sca-all and tuscany-sca-manifest as they duplicate - // code in the individual runtime module JARs - if (name.startsWith("tuscany-sca-all")) { - return false; - } - if (name.startsWith("tuscany-sca-manifest")) { - return false; - } - - if ("features".equals(dir.getName()) && name.startsWith("equinox-manifest")) { - return false; - } - - // Filter out the Tomcat and Webapp hosts - if (name.startsWith("tuscany-host-tomcat") || - name.startsWith("tuscany-host-webapp")) { - //FIXME This is temporary - return false; - } - - // Include JAR and MAR files - if (name.endsWith(".jar")) { - return true; - } - if (name.endsWith(".mar")) { - return true; - } - return false; - } - } - - /** - * A file name filter used to filter JAR files. - */ - private static class WebAppJARFileNameFilter extends StandAloneJARFileNameFilter { - - @Override - public boolean accept(File dir, String name) { - if (!super.accept(dir, name)) { - return false; - } - name = name.toLowerCase(); - - // Exclude servlet-api JARs - if (name.startsWith("servlet-api")) { - return false; - } - - // Exclude the Tomcat and Jetty hosts - if (name.startsWith("tuscany-host-tomcat") || name.startsWith("tuscany-host-jetty")) { - //FIXME This is temporary - return false; - } - - return true; - } - } - - - /** - * Creates a new node. - * - * @param compositeURI - * @param contributions - * @throws LauncherException - */ - static Object node(String configurationURI, String compositeURI, String compositeContent, Contribution[] contributions, ClassLoader contributionClassLoader) throws LauncherException { - ClassLoader tccl = Thread.currentThread().getContextClassLoader(); - try { - - // Set up runtime ClassLoader - ClassLoader runtimeClassLoader = runtimeClassLoader(Thread.currentThread().getContextClassLoader(), - new StandAloneJARFileNameFilter()); - if (runtimeClassLoader != null) { - Thread.currentThread().setContextClassLoader(runtimeClassLoader); - } - - // Use Java reflection to create the node as only the runtime class - // loader knows the runtime classes required by the node - String className = NODE_FACTORY; - Class<?> bootstrapClass; - if (runtimeClassLoader != null) { - bootstrapClass = Class.forName(className, true, runtimeClassLoader); - } else { - bootstrapClass = Class.forName(className); - } - - Object node = - createNode(bootstrapClass, - configurationURI, - compositeURI, - compositeContent, - contributions, - contributionClassLoader); - - return node; - - } catch (Exception e) { - NodeLauncher.logger.log(Level.SEVERE, "SCA Node could not be created", e); - throw new LauncherException(e); - } finally { - Thread.currentThread().setContextClassLoader(tccl); - } - } - - private static Object createNode(Class<?> bootstrapClass, - String configurationURI, - String compositeURI, - String compositeContent, - Contribution[] contributions, - ClassLoader contributionClassLoader) throws NoSuchMethodException, - IllegalAccessException, InvocationTargetException, MalformedURLException { - Method newInstance = bootstrapClass.getMethod("newInstance"); - Object nodeFactory = newInstance.invoke(null); - - Object node; - if (configurationURI != null) { - - URL url = null; - URI uri = URI.create(configurationURI); - if (uri.getScheme() == null) { - uri = new File(configurationURI).toURI(); - } - url = uri.toURL(); - - // NodeFactory.createNode(URL) - Method create = bootstrapClass.getMethod("createNode", URL.class); - node = create.invoke(nodeFactory, url); - - } else if (contributionClassLoader != null) { - - // NodeFactory.createNode(String, ClassLoader) - Method create = bootstrapClass.getMethod("createNode", String.class, ClassLoader.class); - node = create.invoke(nodeFactory, compositeURI, contributionClassLoader); - - } else if (compositeContent != null) { - - // NodeFactory.createNode(Reader, Stringp[], String[]) - Method create = bootstrapClass.getMethod("createNode", Reader.class, String[].class, String[].class); - String[] uris = new String[contributions.length]; - String[] locations = new String[contributions.length]; - for (int i = 0; i < contributions.length; i++) { - uris[i] = contributions[i].getURI(); - locations[i] = contributions[i].getLocation(); - } - node = create.invoke(nodeFactory, compositeContent, uris, locations); - - } else { - - // NodeFactory.createNode(String, Stringp[], String[]) - Method create = bootstrapClass.getMethod("createNode", String.class, String[].class, String[].class); - String[] uris = new String[contributions.length]; - String[] locations = new String[contributions.length]; - for (int i = 0; i < contributions.length; i++) { - uris[i] = contributions[i].getURI(); - locations[i] = contributions[i].getLocation(); - } - node = create.invoke(nodeFactory, compositeURI, uris, locations); - } - return node; - } - - /** - * Creates a new node daemon. - * - * @throws LauncherException - */ - static Object nodeDaemon() throws LauncherException { - ClassLoader tccl = Thread.currentThread().getContextClassLoader(); - try { - // Set up runtime ClassLoader - ClassLoader runtimeClassLoader = runtimeClassLoader(Thread.currentThread().getContextClassLoader(), - new StandAloneJARFileNameFilter()); - if (runtimeClassLoader != null) { - Thread.currentThread().setContextClassLoader(runtimeClassLoader); - } - - // Use Java reflection to create the node daemon as only the runtime class - // loader knows the runtime classes required by the node - String className = "org.apache.tuscany.sca.implementation.node.launcher.NodeImplementationDaemonBootstrap"; - Class<?> bootstrapClass; - if (runtimeClassLoader != null) { - bootstrapClass = Class.forName(className, true, runtimeClassLoader); - } else { - bootstrapClass = Class.forName(className); - } - Object bootstrap = bootstrapClass.getConstructor().newInstance(); - - Object nodeDaemon = bootstrapClass.getMethod("getNode").invoke(bootstrap); - return nodeDaemon; - - } catch (Exception e) { - NodeDaemonLauncher.logger.log(Level.SEVERE, "SCA Node Daemon could not be created", e); - throw new LauncherException(e); - } finally { - Thread.currentThread().setContextClassLoader(tccl); - } - } - - /** - * Creates a new domain manager. - * - * @throws LauncherException - */ - static Object domainManager(String rootDirectory) throws LauncherException { - ClassLoader tccl = Thread.currentThread().getContextClassLoader(); - try { - // Set up runtime ClassLoader - ClassLoader runtimeClassLoader = runtimeClassLoader(Thread.currentThread().getContextClassLoader(), - new StandAloneJARFileNameFilter()); - if (runtimeClassLoader != null) { - Thread.currentThread().setContextClassLoader(runtimeClassLoader); - } - - // Use Java reflection to create the node daemon as only the runtime class - // loader knows the runtime classes required by the node - String className = "org.apache.tuscany.sca.domain.manager.launcher.DomainManagerLauncherBootstrap"; - Class<?> bootstrapClass; - if (runtimeClassLoader != null) { - bootstrapClass = Class.forName(className, true, runtimeClassLoader); - } else { - bootstrapClass = Class.forName(className); - } - Constructor<?> constructor = bootstrapClass.getConstructor(String.class); - Object bootstrap = constructor.newInstance(rootDirectory); - - Object domainManager = bootstrapClass.getMethod("getNode").invoke(bootstrap); - return domainManager; - - } catch (Exception e) { - DomainManagerLauncher.logger.log(Level.SEVERE, "SCA Domain Manager could not be created", e); - throw new LauncherException(e); - } finally { - Thread.currentThread().setContextClassLoader(tccl); - } - } - - /** - * Simple URL class loader for the runtime JARs - */ - private static class RuntimeClassLoader extends URLClassLoader { - private static final ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader(); - private ClassLoader parent; - - /** - * Constructs a new class loader. - * @param urls - * @param parent - */ - private RuntimeClassLoader(URL[] urls, ClassLoader parent) { - super(urls); - this.parent = parent; - } - - @Override - public URL findResource(String name) { - URL url = super.findResource(name); - if (url == null) { - url = parent.getResource(name); - } - return url; - } - - @Override - public Enumeration<URL> findResources(String name) throws IOException { - Enumeration<URL> resources = super.findResources(name); - Enumeration<URL> parentResources = parent.getResources(name); - List<URL> allResources = new ArrayList<URL>(); - for (; resources.hasMoreElements(); ) { - allResources.add(resources.nextElement()); - } - for (; parentResources.hasMoreElements(); ) { - allResources.add(parentResources.nextElement()); - } - return Collections.enumeration(allResources); - } - - @Override - protected Class<?> findClass(String name) throws ClassNotFoundException { - Class<?> cl; - - // First try to load the class using the parent classloader - try { - cl = parent.loadClass(name); - ClassLoader loadedBy = cl.getClassLoader(); - - // If the class was not loaded directly by the parent classloader - // or the system classloader try to load a local version of the class - // using our RuntimeClassloader instead - if (loadedBy != parent && - loadedBy != systemClassLoader && - loadedBy != null) { - - try { - cl = super.findClass(name); - } catch (ClassNotFoundException e) { - // No class alternative was found in our RuntimeClassloader, - // use the class found in the parent classloader hierarchy - } - } - } catch (ClassNotFoundException e) { - - // The class was not found by the parent class loader, try - // to load it using our RuntimeClassloader - cl = super.findClass(name); - } - - return cl; - } - } - -} |