diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca')
8 files changed, 1575 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/Contribution.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/Contribution.java new file mode 100644 index 0000000000..4f4f861e2f --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/Contribution.java @@ -0,0 +1,48 @@ +/* + * 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; + +/** + * Represents an SCA contribution uri + location. + * + * @version $Rev$ $Date$ + */ +public final class Contribution { + private String uri; + private String location; + + /** + * Constructs a new SCA contribution. + * + * @param uri + * @param location + */ + public Contribution(String uri, String location) { + this.uri = uri; + this.location = location; + } + + public String getURI() { + return uri; + } + + public String getLocation() { + return location; + } +}
\ No newline at end of file diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/DomainManagerLauncher.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/DomainManagerLauncher.java new file mode 100644 index 0000000000..ba795216a9 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/DomainManagerLauncher.java @@ -0,0 +1,180 @@ +/* + * 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 static org.apache.tuscany.sca.node.launcher.NodeLauncherUtil.domainManager; + +import java.io.IOException; +import java.util.logging.Level; +import java.util.logging.Logger; + +/** + * Simple launcher for the SCA domain manager. + * + * @version $Rev$ $Date$ + */ +public class DomainManagerLauncher { + + static final Logger logger = Logger.getLogger(DomainManagerLauncher.class.getName()); + + /** + * Constructs a new DomainManagerLauncher. + */ + private DomainManagerLauncher() { + } + + /** + * Returns a new launcher instance. + * + * @return a new launcher instance + */ + public static DomainManagerLauncher newInstance() { + return new DomainManagerLauncher(); + } + + /** + * Creates a new DomainManager. + * + * @return a new DomainManager + * @throws LauncherException + */ + public <T> T createDomainManager() throws LauncherException { + return (T)domainManager("."); + } + + /** + * Creates a new DomainManager. + * + * @param rootDirectory the domain's root configuration directory + * + * @return a new DomainManager + * @throws LauncherException + */ + public <T> T createDomainManager(String rootDirectory) throws LauncherException { + return (T)domainManager(rootDirectory); + } + + public static void main(String[] args) throws Exception { + logger.info("Apache Tuscany SCA Domain Manager is starting..."); + + // Create a launcher + DomainManagerLauncher launcher = newInstance(); + + Object domainManager = null; + ShutdownThread shutdown = null; + try { + while (true) { + + // Start the domain manager + domainManager = launcher.createDomainManager(); + try { + domainManager.getClass().getMethod("start").invoke(domainManager); + } catch (Exception e) { + logger.log(Level.SEVERE, "SCA Domain Manager could not be started", e); + throw e; + } + logger.info("SCA Domain Manager is now started."); + + // Install a shutdown hook + shutdown = new ShutdownThread(domainManager); + Runtime.getRuntime().addShutdownHook(shutdown); + + logger.info("Press 'q' to quit, 'r' to restart."); + int k = 0; + try { + while ((k != 'q') && (k != 'r')) { + k = System.in.read(); + } + } catch (IOException e) { + + // Wait forever + Object lock = new Object(); + synchronized(lock) { + lock.wait(); + } + } + + // Stop the domain manager + if (domainManager != null) { + Object dm = domainManager; + domainManager = null; + stopDomainManager(dm); + } + + // Quit + if (k == 'q' ) { + break; + } + } + } catch (Exception e) { + // Stop the domain manager + if (domainManager != null) { + try { + Object dm = domainManager; + domainManager = null; + stopDomainManager(dm); + } catch (Exception e2) { + } + } + throw e; + + } finally { + + // Remove the shutdown hook + if (shutdown != null) { + Runtime.getRuntime().removeShutdownHook(shutdown); + } + } + } + + /** + * Stop the given domain manager. + * + * @param domainManager + * @throws Exception + */ + private static void stopDomainManager(Object domainManager) throws Exception { + try { + domainManager.getClass().getMethod("stop").invoke(domainManager); + logger.info("SCA Domain Manager is now stopped."); + } catch (Exception e) { + logger.log(Level.SEVERE, "SCA Domain Manager could not be stopped", e); + throw e; + } + } + + private static class ShutdownThread extends Thread { + private Object domainManager; + + public ShutdownThread(Object domainManager) { + super(); + this.domainManager = domainManager; + } + + @Override + public void run() { + try { + stopDomainManager(domainManager); + } catch (Exception e) { + // Ignore + } + } + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/LauncherException.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/LauncherException.java new file mode 100644 index 0000000000..39e8d81139 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/LauncherException.java @@ -0,0 +1,55 @@ +/* + * 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; + + +/** + * Denotes an error launching an SCA domain manager or node. + * + * @version $Rev$ $Date$ + */ +public class LauncherException extends Exception { + private static final long serialVersionUID = 4581189418849190567L; + + public LauncherException() { + super(); + } + + /** + * @param message + * @param cause + */ + public LauncherException(String message, Throwable cause) { + super(message, cause); + } + + /** + * @param message + */ + public LauncherException(String message) { + super(message); + } + + /** + * @param cause + */ + public LauncherException(Throwable cause) { + super(cause); + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java new file mode 100644 index 0000000000..56be9f9921 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java @@ -0,0 +1,169 @@ +/* + * 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 static org.apache.tuscany.sca.node.launcher.NodeLauncherUtil.nodeDaemon; + +import java.io.IOException; +import java.util.logging.Level; +import java.util.logging.Logger; + +/** + * A launcher for the SCA Node daemon. + * + * @version $Rev$ $Date$ + */ +public class NodeDaemonLauncher { + + static final Logger logger = Logger.getLogger(NodeDaemonLauncher.class.getName()); + + /** + * Constructs a new node daemon launcher. + */ + private NodeDaemonLauncher() { + } + + /** + * Returns a new launcher instance. + * + * @return a new launcher instance + */ + public static NodeDaemonLauncher newInstance() { + return new NodeDaemonLauncher(); + } + + /** + * Creates a new node daemon. + * + * @param + * @return a new node daemon + * @throws LauncherException + */ + public <T> T createNodeDaemon() throws LauncherException { + return (T)nodeDaemon(); + } + + public static void main(String[] args) throws Exception { + logger.info("Apache Tuscany SCA Node Daemon is starting..."); + + // Create a node launcher + NodeDaemonLauncher launcher = newInstance(); + + Object node = null; + ShutdownThread shutdown = null; + try { + while (true) { + + // Start the node + node = launcher.createNodeDaemon(); + try { + node.getClass().getMethod("start").invoke(node); + } catch (Exception e) { + logger.log(Level.SEVERE, "SCA Node Daemon could not be started", e); + throw e; + } + logger.info("SCA Node Daemon is now started."); + + // Install a shutdown hook + shutdown = new ShutdownThread(node); + Runtime.getRuntime().addShutdownHook(shutdown); + + logger.info("Press 'q' to quit, 'r' to restart."); + int k = 0; + try { + while ((k != 'q') && (k != 'r')) { + k = System.in.read(); + } + } catch (IOException e) { + + // Wait forever + Object lock = new Object(); + synchronized(lock) { + lock.wait(); + } + } + + // Stop the node + if (node != null) { + Object n = node; + node = null; + stopNode(n); + } + + // Quit + if (k == 'q' ) { + break; + } + } + } catch (Exception e) { + // Stop the node + if (node != null) { + try { + Object n = node; + node = null; + stopNode(n); + } catch (Exception e2) { + } + } + throw e; + + } finally { + + // Remove the shutdown hook + if (shutdown != null) { + Runtime.getRuntime().removeShutdownHook(shutdown); + } + } + } + + /** + * Stop the given node. + * + * @param node + * @throws Exception + */ + private static void stopNode(Object node) throws Exception { + try { + node.getClass().getMethod("stop").invoke(node); + logger.info("SCA Node Daemon is now stopped."); + } catch (Exception e) { + logger.log(Level.SEVERE, "SCA Node Daemon could not be stopped", e); + throw e; + } + } + + private static class ShutdownThread extends Thread { + private Object node; + + public ShutdownThread(Object node) { + super(); + this.node = node; + } + + @Override + public void run() { + try { + stopNode(node); + } catch (Exception e) { + // Ignore + } + } + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncher.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncher.java new file mode 100644 index 0000000000..36fa9e6a21 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncher.java @@ -0,0 +1,364 @@ +/* + * 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 static org.apache.tuscany.sca.node.launcher.NodeLauncherUtil.node; + +import java.io.File; +import java.io.IOException; +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; +import java.net.MalformedURLException; +import java.net.URL; +import java.util.List; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.apache.commons.cli.CommandLine; +import org.apache.commons.cli.CommandLineParser; +import org.apache.commons.cli.HelpFormatter; +import org.apache.commons.cli.Option; +import org.apache.commons.cli.Options; +import org.apache.commons.cli.PosixParser; + +/** + * A launcher for SCA nodes in JSE. + * + * Agruments: + * [-c <compositeURI>]: The composite URI + * [-t <ttl>]: Time to live in milliseconds before the node is started + * contribution1 ... contributionN: A list of contribution files or URLs + * + * @version $Rev$ $Date$ + */ +public class NodeLauncher { + + static final Logger logger = Logger.getLogger(NodeLauncher.class.getName()); + + /** + * Constructs a new node launcher. + */ + private NodeLauncher() { + } + + /** + * Returns a new launcher instance. + * + * @return a new launcher instance + */ + public static NodeLauncher newInstance() { + return new NodeLauncher(); + } + + /** + * Creates a new SCA node from the configuration URL + * + * @param configurationURL the URL of the node configuration which is the ATOM feed + * that contains the URI of the composite and a collection of URLs for the contributions + * + * @return a new SCA node. + * @throws LauncherException + */ + public <T> T createNodeFromURL(String configurationURL) throws LauncherException { + return (T)node(configurationURL, null, null, null, null); + } + + /** + * Creates a new SCA Node. + * + * @param compositeURI the URI of the composite to use + * @param contributions the URI of the contributions that provides the composites and related + * artifacts. If the list is empty, then we will use the thread context classloader to discover + * the contribution on the classpath + * + * @return a new SCA node. + * @throws LauncherException + */ + public <T> T createNode(String compositeURI, Contribution...contributions) throws LauncherException { + return (T)node(null, compositeURI, null, contributions, null); + } + + /** + * Creates a new SCA Node. + * + * @param compositeURI the URI of the composite to use + * @param compositeContent the XML content of the composite to use + * @param contributions the URI of the contributions that provides the composites and related artifacts + * @return a new SCA node. + * @throws LauncherException + */ + public <T> T createNode(String compositeURI, String compositeContent, Contribution...contributions) throws LauncherException { + return (T)node(null, compositeURI, compositeContent, contributions, null); + } + + /** + * Create a SCA node based on the discovery of the contribution on the classpath for the + * given classloader. This method should be treated a convenient shortcut with the following + * assumptions: + * <ul> + * <li>This is a standalone application and there is a deployable composite file on the classpath. + * <li>There is only one contribution which contains the deployable composite file physically in its packaging hierarchy. + * </ul> + * + * @param compositeURI The URI of the composite file relative to the root of the enclosing contribution + * @param classLoader The ClassLoader used to load the composite file as a resource. If the value is null, + * then thread context classloader will be used + * @return A newly created SCA node + */ + public <T> T createNodeFromClassLoader(String compositeURI, ClassLoader classLoader) throws LauncherException { + return (T)node(null, compositeURI, null, null, classLoader); + } + + static Options getCommandLineOptions() { + Options options = new Options(); + Option opt1 = new Option("c", "composite", true, "URI for the composite"); + opt1.setArgName("compositeURI"); + options.addOption(opt1); + Option opt2 = new Option("n", "node", true, "URI for the node configuration"); + opt2.setArgName("nodeConfigurationURI"); + options.addOption(opt2); + Option opt3 = new Option("t", "ttl", true, "Time to live"); + opt3.setArgName("timeToLiveInMilliseconds"); + options.addOption(opt3); + Option opt4 = new Option("s", "service", true, "Service to invoke (componentName/serviceName#operation(arg0,...,argN)"); + options.addOption(opt4); + return options; + } + + public static void main(String[] args) throws Exception { + CommandLineParser parser = new PosixParser(); + Options options = getCommandLineOptions(); + CommandLine cli = parser.parse(options, args); + + Object node = null; + ShutdownThread shutdown = null; + try { + while (true) { + if (cli.hasOption("node")) { + + // Create a node from a configuration URI + String configurationURI = cli.getOptionValue("node"); + logger.info("SCA Node configuration: " + configurationURI); + // Create a node launcher + NodeLauncher launcher = newInstance(); + node = launcher.createNodeFromURL(configurationURI); + } else { + + // Create a node from a composite URI and a contribution location + String compositeURI = cli.getOptionValue("composite"); + List<String> contribs = cli.getArgList(); + Contribution[] contributions = null; + if (!contribs.isEmpty()) { + contributions = new Contribution[contribs.size()]; + int index = 0; + for (String contrib : contribs) { + logger.info("SCA contribution: " + contrib); + URL url = null; + try { + url = new URL(contrib); + } catch(MalformedURLException e) { + url = new File(contrib).toURI().toURL(); + } + contributions[index] = new Contribution("contribution-" + index, url.toString()); + index++; + } + } else { + HelpFormatter formatter = new HelpFormatter(); + formatter.setSyntaxPrefix("Usage: "); + formatter.printHelp("java " + NodeLauncher.class.getName() + + " [-c <compositeURI>]" + + " [-s <service>]" + + " [-t <ttl>]" + + " contribution1 ... contributionN", options); return; + } + // Create a node launcher + logger.info("SCA composite: " + compositeURI); + NodeLauncher launcher = newInstance(); + + node = launcher.createNode(compositeURI, contributions); + } + + logger.info("Apache Tuscany SCA Node is starting..."); + + // Start the node + try { + node.getClass().getMethod("start").invoke(node); + } catch (Exception e) { + logger.log(Level.SEVERE, "SCA Node could not be started", e); + throw e; + } + logger.info("SCA Node is now started."); + + String service = cli.getOptionValue("service"); + String regex = "(#|\\(|,|\\))"; + if (service != null) { + // componentName/serviceName/bindingName#methodName(arg0, ..., agrN) + String tokens[] = service.split(regex); + String serviceName = tokens[0]; + String operationName = tokens[1]; + String params[] = new String[tokens.length - 2]; + System.arraycopy(tokens, 2, params, 0, params.length); + logger.info("Invoking service: " + service); + Method method = node.getClass().getMethod("getService", Class.class, String.class); + Object proxy = method.invoke(node, null, serviceName); + + Object result = invoke(proxy, operationName, params); + if (result != null) { + logger.info("Result is: " + result); + } + break; + } + + // Install a shutdown hook + shutdown = new ShutdownThread(node); + Runtime.getRuntime().addShutdownHook(shutdown); + + long ttl = Long.parseLong(cli.getOptionValue("ttl", "-1")); + if (ttl >= 0) { + logger.info("Waiting for " + ttl + " milliseconds ..."); + Thread.sleep(ttl); + // Stop the node + if (node != null) { + Object n = node; + node = null; + stopNode(n); + } + break; // Exit + } + + logger.info("Press 'q' to quit, 'r' to restart."); + int k = 0; + try { + while ((k != 'q') && (k != 'r')) { + k = System.in.read(); + } + } catch (IOException e) { + + // Wait forever + Object lock = new Object(); + synchronized(lock) { + lock.wait(); + } + } + + // Stop the node + if (node != null) { + Object n = node; + node = null; + stopNode(n); + } + + // Quit + if (k == 'q' ) { + break; + } + } + } catch (Exception e) { + // Stop the node + if (node != null) { + try { + Object n = node; + node = null; + stopNode(n); + } catch (Exception e2) { + } + } + throw e; + + } finally { + + // Remove the shutdown hook + if (shutdown != null) { + Runtime.getRuntime().removeShutdownHook(shutdown); + } + } + } + + static Object invoke(Object proxy, String operationName, String... params) throws IllegalAccessException, + InvocationTargetException { + for (Method m : proxy.getClass().getMethods()) { + if (m.getName().equals(operationName) && m.getParameterTypes().length == params.length) { + Object parameters[] = new Object[params.length]; + int i = 0; + for (Class<?> type : m.getParameterTypes()) { + if (type == byte.class || type == Byte.class) { + parameters[i] = Byte.valueOf(params[i]); + } else if (type == char.class || type == Character.class) { + parameters[i] = params[i].charAt(0); + } else if (type == boolean.class || type == Boolean.class) { + parameters[i] = Boolean.valueOf(params[i]); + } else if (type == short.class || type == Short.class) { + parameters[i] = Short.valueOf(params[i]); + } else if (type == int.class || type == Integer.class) { + parameters[i] = Integer.valueOf(params[i]); + } else if (type == long.class || type == Long.class) { + parameters[i] = Long.valueOf(params[i]); + } else if (type == float.class || type == Float.class) { + parameters[i] = Float.valueOf(params[i]); + } else if (type == double.class || type == Double.class) { + parameters[i] = Double.valueOf(params[i]); + } else if (type == String.class) { + parameters[i] = params[i]; + } else { + throw new IllegalArgumentException("Parameter type is not supported: " + type); + } + i++; + } + Object result = m.invoke(proxy, parameters); + return result; + } + } + throw new IllegalArgumentException("Invalid service operation: " + operationName); + } + + /** + * Stop the given node. + * + * @param node + * @throws Exception + */ + private static void stopNode(Object node) throws Exception { + try { + node.getClass().getMethod("stop").invoke(node); + logger.info("SCA Node is now stopped."); + } catch (Exception e) { + logger.log(Level.SEVERE, "SCA Node could not be stopped", e); + throw e; + } + } + + private static class ShutdownThread extends Thread { + private Object node; + + public ShutdownThread(Object node) { + super(); + this.node = node; + } + + @Override + public void run() { + try { + stopNode(node); + } catch (Exception e) { + // Ignore + } + } + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java new file mode 100644 index 0000000000..38dea77eda --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java @@ -0,0 +1,567 @@ +/* + * 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; + } + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeMain.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeMain.java new file mode 100644 index 0000000000..77751dcc47 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeMain.java @@ -0,0 +1,62 @@ +/* + * 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 org.apache.commons.cli.CommandLine; +import org.apache.commons.cli.CommandLineParser; +import org.apache.commons.cli.Option; +import org.apache.commons.cli.OptionGroup; +import org.apache.commons.cli.Options; +import org.apache.commons.cli.PosixParser; + + +/** + * Main class for this JAR. + * With a "-nodeDaemon or -nd" this class launches the SCA Node Daemon. + * With a "-domainManager or -dm" argument it launches the SCA domain admin node. + * With any other argument it launches an SCA Node. + * + * @version $Rev$ $Date$ + */ +public class NodeMain { + + public static void main(String[] args) throws Exception { + CommandLineParser parser = new PosixParser(); + Options options = new Options(); + OptionGroup group = new OptionGroup(); + group.addOption(new Option("dm", "domainManager", false, "Domain Manager")); + group.addOption(new Option("nd", "nodeDaemon", false, "Node Domain")); + options.addOptionGroup(group); + + // Add options from NodeLauncher to avoid UnrecognizedOptionException + for (Object o : NodeLauncher.getCommandLineOptions().getOptions()) { + options.addOption((Option)o); + } + + CommandLine cli = parser.parse(options, args); + if (cli.hasOption("nd")) { + NodeDaemonLauncher.main(args); + } else if (cli.hasOption("dm")) { + DomainManagerLauncher.main(args); + } else { + NodeLauncher.main(args); + } + } +}
\ No newline at end of file diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeServletFilter.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeServletFilter.java new file mode 100644 index 0000000000..5345363031 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeServletFilter.java @@ -0,0 +1,130 @@ +/* + * 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 static org.apache.tuscany.sca.node.launcher.NodeLauncherUtil.webAppRuntimeClassLoader; + +import java.io.IOException; +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.servlet.Filter; +import javax.servlet.FilterConfig; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; + +/** + * A Servlet filter that forwards service requests to the Servlets registered with + * the Tuscany ServletHost. + * + * @version $Rev$ $Date$ + */ +public class NodeServletFilter implements Filter { + private static final long serialVersionUID = 1L; + + private static final String NODE_WEB_APP_SERVLET_HOST = "org.apache.tuscany.sca.implementation.node.webapp.NodeWebAppServletHost"; + + private static final Logger logger = Logger.getLogger(NodeServletFilter.class.getName()); + + private ClassLoader runtimeClassLoader; + private Class<?> servletHostClass; + private Object servletHost; + private Filter filter; + + public void init(FilterConfig filterConfig) throws ServletException { + logger.info("Apache Tuscany SCA WebApp Node is starting..."); + + try { + // Get the Tuscany runtime ClassLoader + ClassLoader tccl = Thread.currentThread().getContextClassLoader(); + runtimeClassLoader = webAppRuntimeClassLoader(getClass().getClassLoader()); + + try { + if (runtimeClassLoader != null) { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + } + + // Load the Tuscany WebApp Servlet host and get the host instance + // for the current webapp + String className = NODE_WEB_APP_SERVLET_HOST; + if (runtimeClassLoader != null) { + servletHostClass = Class.forName(className, true, runtimeClassLoader); + } else { + servletHostClass = Class.forName(className); + } + servletHost = servletHostClass.getMethod("servletHost").invoke(null); + + // Initialize the Servlet host + servletHostClass.getMethod("init", FilterConfig.class).invoke(servletHost, filterConfig); + + // The Servlet host also implements the filter interface + filter = (Filter)servletHost; + + } finally { + Thread.currentThread().setContextClassLoader(tccl); + } + + } catch (Exception e) { + logger.log(Level.SEVERE, "Error Starting SCA WebApp Node", e); + throw new ServletException(e); + } + + logger.info("SCA WebApp Node started."); + } + + public void destroy() { + logger.info("Apache Tuscany WebApp Node stopping..."); + if (servletHost != null) { + ClassLoader tccl = Thread.currentThread().getContextClassLoader(); + try { + if (runtimeClassLoader != null) { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + } + + servletHostClass.getMethod("destroy").invoke(servletHost); + + } catch (Exception e) { + logger.log(Level.SEVERE, "Error Stopping SCA WebApp Node", e); + } finally { + Thread.currentThread().setContextClassLoader(tccl); + } + } + logger.info("SCA WebApp Node stopped."); + } + + public void doFilter(ServletRequest request, ServletResponse response, javax.servlet.FilterChain chain) + throws IOException, ServletException { + + // Delegate to the Servlet host filter + ClassLoader tccl = Thread.currentThread().getContextClassLoader(); + try { + if (runtimeClassLoader != null) { + Thread.currentThread().setContextClassLoader(runtimeClassLoader); + } + + filter.doFilter(request, response, chain); + + } finally { + Thread.currentThread().setContextClassLoader(tccl); + } + } + +} |