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/*
* 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.osgi.launcher;
import java.lang.reflect.Constructor;
import java.util.logging.Level;
/**
* Common functions and constants used by the admin components.
*
* @version $Rev$ $Date$
*/
final class NodeLauncherUtil {
// private static final Logger logger = Logger.getLogger(NodeLauncherUtil.class.getName());
private static final String DOMAIN_MANAGER_LAUNCHER_BOOTSTRAP =
"org.apache.tuscany.sca.domain.manager.launcher.DomainManagerLauncherBootstrap";
private static final String NODE_IMPLEMENTATION_DAEMON_BOOTSTRAP =
"org.apache.tuscany.sca.implementation.node.launcher.NodeImplementationDaemonBootstrap";
private static final String NODE_IMPLEMENTATION_LAUNCHER_BOOTSTRAP =
"org.apache.tuscany.sca.implementation.node.launcher.NodeImplementationLauncherBootstrap";
/**
* Collect JAR files under the given directory.
*
* @p @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 {
// Use Java reflection to create the node as only the runtime class
// loader knows the runtime classes required by the node
String className = NODE_IMPLEMENTATION_LAUNCHER_BOOTSTRAP;
Class<?> bootstrapClass;
bootstrapClass = Class.forName(className, false, tccl);
Object bootstrap;
if (configurationURI != null) {
// Construct the node with a configuration URI
bootstrap = bootstrapClass.getConstructor(String.class).newInstance(configurationURI);
} else if (contributionClassLoader != null) {
// Construct the node with a compositeURI and a classloader
Constructor<?> constructor = bootstrapClass.getConstructor(String.class, ClassLoader.class);
bootstrap = constructor.newInstance(compositeURI, contributionClassLoader);
} else if (compositeContent != null) {
// Construct the node with a composite URI, the composite content and
// the URIs and locations of a list of contributions
Constructor<?> constructor =
bootstrapClass.getConstructor(String.class, 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();
}
bootstrap = constructor.newInstance(compositeURI, compositeContent, uris, locations);
} else {
// Construct the node with a composite URI and the URIs and
// locations of a list of contributions
Constructor<?> constructor =
bootstrapClass.getConstructor(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();
}
bootstrap = constructor.newInstance(compositeURI, uris, locations);
}
Object node = bootstrapClass.getMethod("getNode").invoke(bootstrap);
try {
Class<?> type = Class.forName("org.apache.tuscany.sca.node.SCANodeFactory");
type = type.getDeclaredClasses()[0];
return type.getMethod("createProxy", Class.class, Object.class).invoke(null, type, node);
} catch (ClassNotFoundException e) {
// Ignore
}
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);
}
}
/**
* Creates a new node daemon.
*
* @throws LauncherException
*/
static Object nodeDaemon() throws LauncherException {
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
try {
// Use Java reflection to create the node daemon as only the runtime class
// loader knows the runtime classes required by the node
String className = NODE_IMPLEMENTATION_DAEMON_BOOTSTRAP;
Class<?> bootstrapClass;
bootstrapClass = Class.forName(className, false, tccl);
Object bootstrap = bootstrapClass.getConstructor().newInstance();
Object nodeDaemon = bootstrapClass.getMethod("getNode").invoke(bootstrap);
return nodeDaemon;
} catch (Exception e) {
NodeLauncher.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 {
// Use Java reflection to create the node daemon as only the runtime class
// loader knows the runtime classes required by the node
String className = DOMAIN_MANAGER_LAUNCHER_BOOTSTRAP;
Class<?> bootstrapClass;
bootstrapClass = Class.forName(className, false, tccl);
Constructor<?> constructor = bootstrapClass.getConstructor(String.class);
Object bootstrap = constructor.newInstance(rootDirectory);
Object domainManager = bootstrapClass.getMethod("getNode").invoke(bootstrap);
return domainManager;
} catch (Exception e) {
NodeLauncher.logger.log(Level.SEVERE, "SCA Domain Manager could not be created", e);
throw new LauncherException(e);
} finally {
Thread.currentThread().setContextClassLoader(tccl);
}
}
static OSGiHost startOSGi() {
OSGiHost host = new FelixOSGiHost();
host.start();
return host;
}
static void stopOSGi(OSGiHost host) {
host.stop();
}
/*
static OSGiHost getOSGiHost() throws Exception {
ServiceDiscovery discovery = ServiceDiscovery.getInstance(Thread.currentThread().getContextClassLoader());
Class<?> hostClass = discovery.loadFirstServiceClass(OSGiHost.class);
if (hostClass != null) {
return (OSGiHost) hostClass.newInstance();
} else {
return null;
}
}
*/
}
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