From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001 From: lresende Date: Thu, 26 Sep 2013 20:33:20 +0000 Subject: 2.0 branch for possible maintenance release git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68 --- .../sca/tomcat/TuscanyAnnotationsProcessor.java | 85 +++++++++ .../tuscany/sca/tomcat/TuscanyContextConfig.java | 183 +++++++++++++++++++ .../tuscany/sca/tomcat/TuscanyHostConfig.java | 167 ++++++++++++++++++ .../sca/tomcat/TuscanyLifecycleListener.java | 161 +++++++++++++++++ .../tuscany/sca/tomcat/TuscanyStandardContext.java | 196 +++++++++++++++++++++ 5 files changed, 792 insertions(+) create mode 100644 sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyAnnotationsProcessor.java create mode 100644 sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyContextConfig.java create mode 100644 sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyHostConfig.java create mode 100644 sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyLifecycleListener.java create mode 100644 sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyStandardContext.java (limited to 'sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java') diff --git a/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyAnnotationsProcessor.java b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyAnnotationsProcessor.java new file mode 100644 index 0000000000..54947d6492 --- /dev/null +++ b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyAnnotationsProcessor.java @@ -0,0 +1,85 @@ +/* + * 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.tomcat; + +import java.lang.reflect.InvocationTargetException; +import java.lang.reflect.Method; + +import javax.naming.NamingException; +import javax.servlet.ServletContext; + +import org.apache.AnnotationProcessor; +import org.apache.catalina.util.DefaultAnnotationProcessor; + +public class TuscanyAnnotationsProcessor implements AnnotationProcessor { + + private TuscanyStandardContext tuscanyStandardContext; + private AnnotationProcessor tomcatAnnotationProcessor; + private Method tuscanyInjectMethod; + + public TuscanyAnnotationsProcessor(TuscanyStandardContext tuscanyStandardContext, javax.naming.Context context) { + this.tuscanyStandardContext = tuscanyStandardContext; + this.tomcatAnnotationProcessor = new DefaultAnnotationProcessor(context); + initInjectMethod(tuscanyStandardContext); + } + + private void initInjectMethod(TuscanyStandardContext tuscanyStandardContext) { + + // this needs to use reflection as the tuscany-hook module can't have any + // dependencies on the tuscany runtime modules as they're not + // in the server classpath + // TODO: is there a nicer way ? + + ClassLoader cl = tuscanyStandardContext.getParentClassLoader(); + try { + Class c = Class.forName("org.apache.tuscany.sca.implementation.web.runtime.utils.ContextHelper", true, cl); + if (c != null) { + this.tuscanyInjectMethod = c.getMethod("inject", new Class[]{Object.class, ServletContext.class}); + } + } catch (Exception e){ + // ignore + } + } + + public void postConstruct(Object instance) throws IllegalAccessException, InvocationTargetException { + tomcatAnnotationProcessor.postConstruct(instance); + } + + public void preDestroy(Object instance) throws IllegalAccessException, InvocationTargetException { + tomcatAnnotationProcessor.preDestroy(instance); + } + + public void processAnnotations(Object instance) throws IllegalAccessException, InvocationTargetException, NamingException { + if (tuscanyInjectMethod != null) { + ServletContext sc = tuscanyStandardContext.getServletContext(); + if (sc != null) { + Object rc = sc.getAttribute("org.apache.tuscany.sca.implementation.web.RuntimeComponent"); + if (rc != null) { + try { + tuscanyInjectMethod.invoke(null, instance, sc); + } catch (Exception e) { + throw new InvocationTargetException(e); + } + } + } + } + tomcatAnnotationProcessor.processAnnotations(instance); + } +} diff --git a/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyContextConfig.java b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyContextConfig.java new file mode 100644 index 0000000000..5e7905d246 --- /dev/null +++ b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyContextConfig.java @@ -0,0 +1,183 @@ +/* + * 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.tomcat; + +import java.io.File; +import java.io.IOException; +import java.net.URL; + +import org.apache.catalina.Host; +import org.apache.catalina.core.StandardContext; +import org.apache.catalina.core.StandardHost; +import org.apache.catalina.startup.ContextConfig; +import org.apache.catalina.startup.ExpandWar; + +public class TuscanyContextConfig extends ContextConfig{ + + /** + * Return the location of the default deployment descriptor + * + * Override the super class method to use the Tuscany specific + * default web.xml which has the Tuscany listener and filer config + */ + @Override + public String getDefaultWebXml() { + if( defaultWebXml == null ) { + defaultWebXml="conf/tuscany-web.xml"; + } + return (this.defaultWebXml); + } + + /** + * Adjust docBase. + * + * This is cutNpaste of the Tomcat method but changed on the lines marked with // TUSCANY: + * to override the default that only works for file names ending with .war + * + */ + @Override + protected void fixDocBase() + throws IOException { + + Host host = (Host) context.getParent(); + String appBase = host.getAppBase(); + + boolean unpackWARs = true; + if (host instanceof StandardHost) { + unpackWARs = ((StandardHost) host).isUnpackWARs() + && ((StandardContext) context).getUnpackWAR(); + } + + File canonicalAppBase = new File(appBase); + if (canonicalAppBase.isAbsolute()) { + canonicalAppBase = canonicalAppBase.getCanonicalFile(); + } else { + canonicalAppBase = + new File(System.getProperty("catalina.base"), appBase) + .getCanonicalFile(); + } + + String docBase = context.getDocBase(); + if (docBase == null) { + // Trying to guess the docBase according to the path + String path = context.getPath(); + if (path == null) { + return; + } + if (path.equals("")) { + docBase = "ROOT"; + } else { + if (path.startsWith("/")) { + docBase = path.substring(1); + } else { + docBase = path; + } + } + } + + File file = new File(docBase); + if (!file.isAbsolute()) { + docBase = (new File(canonicalAppBase, docBase)).getPath(); + } else { + docBase = file.getCanonicalPath(); + } + file = new File(docBase); + String origDocBase = docBase; + + String contextPath = context.getPath(); + if (contextPath.equals("")) { + contextPath = "ROOT"; + } else { + if (contextPath.lastIndexOf('/') > 0) { + contextPath = "/" + contextPath.substring(1).replace('/','#'); + } + } + // TUSCANY: update from .war to also support .jar and .zip SCA contributions + if ((docBase.toLowerCase().endsWith(".war") || docBase.toLowerCase().endsWith(".jar")||docBase.toLowerCase().endsWith(".zip")) && !file.isDirectory() && unpackWARs) { + URL war = new URL("jar:" + (new File(docBase)).toURI().toURL() + "!/"); + docBase = ExpandWar.expand(host, war, contextPath); + file = new File(docBase); + docBase = file.getCanonicalPath(); + if (context instanceof StandardContext) { + ((StandardContext) context).setOriginalDocBase(origDocBase); + } + } else { + File docDir = new File(docBase); + if (!docDir.exists()) { + // TUSCANY: update from .war to also support .jar and .zip SCA contributions + File warFile = new File(docBase + ".war"); + if (warFile.exists()) { + if (unpackWARs) { + URL war = + new URL("jar:" + warFile.toURI().toURL() + "!/"); + docBase = ExpandWar.expand(host, war, contextPath); + file = new File(docBase); + docBase = file.getCanonicalPath(); + } else { + docBase = warFile.getCanonicalPath(); + } + } else { + warFile = new File(docBase + ".jar"); + if (warFile.exists()) { + if (unpackWARs) { + URL war = + new URL("jar:" + warFile.toURI().toURL() + "!/"); + docBase = ExpandWar.expand(host, war, contextPath); + file = new File(docBase); + docBase = file.getCanonicalPath(); + } else { + docBase = warFile.getCanonicalPath(); + } + } else { + warFile = new File(docBase + ".zip"); + if (warFile.exists()) { + if (unpackWARs) { + URL war = + new URL("jar:" + warFile.toURI().toURL() + "!/"); + docBase = ExpandWar.expand(host, war, contextPath); + file = new File(docBase); + docBase = file.getCanonicalPath(); + } else { + docBase = warFile.getCanonicalPath(); + } + } + } + } + if (context instanceof StandardContext) { + ((StandardContext) context).setOriginalDocBase(origDocBase); + } + } + } + + if (docBase.startsWith(canonicalAppBase.getPath())) { + docBase = docBase.substring(canonicalAppBase.getPath().length()); + docBase = docBase.replace(File.separatorChar, '/'); + if (docBase.startsWith("/")) { + docBase = docBase.substring(1); + } + } else { + docBase = docBase.replace(File.separatorChar, '/'); + } + + context.setDocBase(docBase); + + } + +} diff --git a/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyHostConfig.java b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyHostConfig.java new file mode 100644 index 0000000000..e92d7a0bf6 --- /dev/null +++ b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyHostConfig.java @@ -0,0 +1,167 @@ +/* + * 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.tomcat; + +import java.io.File; +import java.util.zip.ZipEntry; +import java.util.zip.ZipFile; + +import org.apache.catalina.Context; +import org.apache.catalina.Lifecycle; +import org.apache.catalina.LifecycleListener; +import org.apache.catalina.startup.HostConfig; + +/** + * A Tuscany customized HostConfig that adds support for SCA contributions + * to be deployed along with the usual .war files. + */ +public class TuscanyHostConfig extends HostConfig { + + protected File scaBase = null; + + @Override + protected void deployApps() { + + File appBase = appBase(); + File configBase = configBase(); + // Deploy XML descriptors from configBase + deployDescriptors(configBase, configBase.list()); + // Deploy WARs, and loop if additional descriptors are found + deployWARs(appBase, appBase.list()); + // TUSCANY: Deploy any SCA contibutions + deploySCAContributions(appBase, appBase.list()); + // Deploy expanded folders + deployDirectories(appBase, appBase.list()); + } + + protected void deploySCAContributions(File appBase, String[] files) { + if (files == null) + return; + + for (int i = 0; i < files.length; i++) { + + File scafile = new File(appBase, files[i]); + + if (scafile.isFile() && isSCAContribution(scafile)) { + + // Calculate the context path and make sure it is unique + String contextPath = "/" + files[i].replace('#','/'); + int period = contextPath.lastIndexOf("."); + if (period >= 0) + contextPath = contextPath.substring(0, period); + + if (isServiced(contextPath)) + continue; + + String file = files[i]; + + deploySCAContribution(contextPath, scafile, file); + + } + + } + + } + + protected String tuscanyContextClass = "org.apache.tuscany.sca.tomcat.TuscanyContextConfig"; + + protected void deploySCAContribution(String contextPath, File dir, String file) { + if (deploymentExists(contextPath)) + return; + + DeployedApplication deployedApp = new DeployedApplication(contextPath); + + // Deploy the application in this WAR file + if(log.isInfoEnabled()) + log.info("Deploying SCA contibution: " + file); + + // Populate redeploy resources with the WAR file + deployedApp.redeployResources.put(dir.getAbsolutePath(), new Long(dir.lastModified())); + + try { + Context context = (Context) Class.forName(contextClass).newInstance(); + if (context instanceof Lifecycle) { + + // Tuscany: change to use the Tuscany ContextConfig class + Class clazz = Class.forName(tuscanyContextClass); + + LifecycleListener listener = + (LifecycleListener) clazz.newInstance(); + ((Lifecycle) context).addLifecycleListener(listener); + } + context.setPath(contextPath); + context.setDocBase(file); + + host.addChild(context); + // If we're unpacking WARs, the docBase will be mutated after + // starting the context + if (unpackWARs && (context.getDocBase() != null)) { + String name = null; + String path = context.getPath(); + if (path.equals("")) { + name = "ROOT"; + } else { + if (path.startsWith("/")) { + name = path.substring(1); + } else { + name = path; + } + } + name = name.replace('/', '#'); + File docBase = new File(name); + if (!docBase.isAbsolute()) { + docBase = new File(appBase(), name); + } + deployedApp.redeployResources.put(docBase.getAbsolutePath(), + new Long(docBase.lastModified())); + addWatchedResources(deployedApp, docBase.getAbsolutePath(), context); + } else { + addWatchedResources(deployedApp, null, context); + } + } catch (Throwable t) { + log.error(sm.getString("hostConfig.deployJar.error", file), t); + } + + deployed.put(contextPath, deployedApp); + } + + protected boolean isSCAContribution(File file) { + ZipFile zip = null; + ZipEntry entry = null; + try { + try { + zip = new ZipFile(file); + entry = zip.getEntry("META-INF/sca-contribution.xml"); + } catch (Exception e) { + } + + return (entry != null); + + } finally { + if (zip != null) { + try { + zip.close(); + } catch (Throwable t) { + } + } + } + } + +} diff --git a/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyLifecycleListener.java b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyLifecycleListener.java new file mode 100644 index 0000000000..a9eee9687e --- /dev/null +++ b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyLifecycleListener.java @@ -0,0 +1,161 @@ +/* + * 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.tomcat; + +import java.io.File; +import java.util.logging.Logger; + +import org.apache.catalina.Container; +import org.apache.catalina.LifecycleEvent; +import org.apache.catalina.LifecycleListener; +import org.apache.catalina.ServerFactory; +import org.apache.catalina.Service; +import org.apache.catalina.connector.Connector; +import org.apache.catalina.core.StandardEngine; +import org.apache.catalina.core.StandardHost; +import org.apache.catalina.core.StandardServer; +import org.apache.catalina.core.StandardService; +import org.apache.catalina.startup.HostConfig; + +/** + * A Tomcat LifecycleListener that initilizes the Tuscany Tomcat integration. + * It sets a System property with the location of the Tuscany runtime .war + * and configures each Tomcat Connector to use the TuscanyStandardContext. + * + * To configure Tomcat to use this add the following to the Tomcat conf/server.xml + * + */ +public class TuscanyLifecycleListener implements LifecycleListener { + private static final Logger log = Logger.getLogger(TuscanyLifecycleListener.class.getName()); + + public static final String TUSCANY_WAR_PROP = "org.apache.tuscany.sca.tomcat.war"; + + private static boolean running; + + public static boolean isRunning() { + return running; + } + + static final String TUSCANY_SHARED_PROP = "org.apache.tuscany.sca.tomcat.shared"; + + private static String domainURI = "tuscany:default"; + + public TuscanyLifecycleListener() { + running = true; + log.info("Apache Tuscany initilizing"); + } + + public void lifecycleEvent(LifecycleEvent event) { + if ("init".equals(event.getType()) && (event.getSource() instanceof StandardServer)) { + File webappDir = findTuscanyWar(); + if (webappDir == null) { + log.severe("Tuscany disabled as Tuscany webapp not found"); + } else { + System.setProperty(TUSCANY_WAR_PROP, webappDir.getAbsolutePath()); + log.info("Using Tuscany webapp: " + webappDir.getAbsolutePath()); + StandardServer server = (StandardServer)event.getSource(); + StandardService catalina = (StandardService)server.findService("Catalina"); + for (Connector connector : catalina.findConnectors()) { + for (Container container : connector.getContainer().findChildren()) { + if (container instanceof StandardHost) { + for (LifecycleListener listener : ((StandardHost)container).findLifecycleListeners()) { + if (listener instanceof HostConfig) { + ((HostConfig)listener).setContextClass("org.apache.tuscany.sca.tomcat.TuscanyStandardContext"); + log.info("Tuscany enabled on connector: " + container.getName() + ":" + connector.getPort()); + } + } + } + } + } + } + } + } + + private static File findTuscanyWar() { + + // in Tomcat 5.5 the Tuscany war is in the server/webapps director + String catalinaBase = System.getProperty("catalina.base"); + File serverWebapps = new File(catalinaBase, "server/webapps"); + File tuscanyWar = findTuscanyWar(serverWebapps); + if (tuscanyWar != null) { + return tuscanyWar; + } + + // in Tomcat 6 the Tuscany war is normally in webapps, but we just scan all hosts directories + for (Service service : ServerFactory.getServer().findServices()) { + Container container = service.getContainer(); + if (container instanceof StandardEngine) { + StandardEngine engine = (StandardEngine)container; + for (Container child : engine.findChildren()) { + if (child instanceof StandardHost) { + StandardHost host = (StandardHost)child; + String appBase = host.getAppBase(); + + // determine the host dir (normally webapps) + File hostDir = new File(appBase); + if (!hostDir.isAbsolute()) { + hostDir = new File(catalinaBase, appBase); + } + + tuscanyWar = findTuscanyWar(hostDir); + if (tuscanyWar != null) { + return tuscanyWar; + } + } + } + } + } + return null; + } + + private static File findTuscanyWar(File hostDir) { + if (!hostDir.isDirectory()) { + return null; + } + + // iterate over the contexts + for (File contextDir : hostDir.listFiles()) { + // does this war have a web-inf lib dir + File hookLib = new File(contextDir, "tomcat-lib"); + if (!hookLib.isDirectory()) { + continue; + } + // iterate over the libs looking for the tuscany-tomcat-*.jar + for (File file : hookLib.listFiles()) { + if (file.getName().startsWith("tuscany-tomcat-hook-") && file.getName().endsWith(".jar")) { + // this should be in the Tuscany war... + // make sure it has a runtime directory + if (new File(contextDir, "tuscany-lib").isDirectory()) { + return contextDir; + } + } + } + } + return null; + } + + public void setDomainURI(String domainURI) { + TuscanyLifecycleListener.domainURI = domainURI; + } + + public static String getDomainURI() { + return domainURI; + } +} diff --git a/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyStandardContext.java b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyStandardContext.java new file mode 100644 index 0000000000..ca9c81f1c3 --- /dev/null +++ b/sca-java-2.x/branches/2.0/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyStandardContext.java @@ -0,0 +1,196 @@ +/* + * 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.tomcat; + +import java.io.File; +import java.lang.reflect.Method; +import java.net.URI; +import java.net.URL; +import java.net.URLClassLoader; +import java.util.logging.Logger; + +import javax.naming.NameClassPair; +import javax.naming.NamingEnumeration; +import javax.naming.NamingException; + +import org.apache.catalina.LifecycleException; +import org.apache.catalina.Loader; +import org.apache.catalina.core.StandardContext; + +/** + * A Tuscany StandardContext to initilize SCA applications. + * There is a StandardContext instance for each webapp and its + * called to handle all start/stop/etc requests. This intercepts + * the start and inserts any required Tuscany configuration. + */ +public class TuscanyStandardContext extends StandardContext { + private static final long serialVersionUID = 1L; + private static final Logger log = Logger.getLogger(TuscanyStandardContext.class.getName()); + + private boolean isSCAApp; + + // TODO: this gives an instance per webapp, work out how to have only one per server + // ?? is that comment still true? + private static URLClassLoader tuscanyClassLoader; + private static Object node; + private static Class nodeClass; + private static Method nodeStopMethod; + + public TuscanyStandardContext() { + } + + /** + * Overrides the getLoader method in the Tomcat StandardContext as its a convenient + * point to insert the Tuscany initilization. This gets called the first time during + * StandardContext.start after the webapp resources have been created so this can + * use getResources() to look for the SCA web.composite or sca-contribution.xml files, + * but its still early enough in start to insert the required Tuscany config. + */ + @Override + public Loader getLoader() { + if (loader != null) { + return loader; + } + + ClassLoader parent = getParentClassLoader(); + if (isSCAApp = isSCAApplication()) { + if (tuscanyClassLoader == null) { + initTuscany(); + } + setParentClassLoader(getTuscanyClassloader(parent)); + setDefaultWebXml("conf/tuscany-web.xml"); + } + + return super.getLoader(); + } + + @Override + public boolean listenerStart() { + if (isSCAApp) { + enableTuscany(); + } + return super.listenerStart(); + } + + private void enableTuscany() { + + if (isUseNaming() && getNamingContextListener() != null) { + setAnnotationProcessor(new TuscanyAnnotationsProcessor(this, getNamingContextListener().getEnvContext())); + } else { + setAnnotationProcessor(new TuscanyAnnotationsProcessor(this, null)); + } + + log.info("Tuscany SCA is enabled for: " + this.getName()); + } + + private boolean isSCAApplication() { + Object o = null; + try { + o = getResources().lookup("WEB-INF/web.composite"); + } catch (NamingException e) { + } + if (o == null) { + try { + o = getResources().lookup("META-INF/sca-contribution.xml"); + } catch (NamingException e) { + } + } + if (o == null) { + return false; + } + + // Try to see if the Tuscany jars are packaged in the webapp + NamingEnumeration enumeration; + try { + enumeration = getResources().list("WEB-INF/lib"); + while (enumeration.hasMoreElements()) { + String jar = enumeration.nextElement().getName(); + if (jar.startsWith("tuscany-")) { + // Do not alter is + log.info("Tuscany SCA ignoring webapp with embedded Tuscany runtime: " + this.getName()); + return false; + } + } + } catch (NamingException e) { + } + return true; + } + + private URLClassLoader getTuscanyClassloader(ClassLoader parent) { + return tuscanyClassLoader; + } + + private void initTuscany() { + initTuscanyClassloader(getParentClassLoader()); + initDomain(); + } + + private void initTuscanyClassloader(ClassLoader parent) { + if (tuscanyClassLoader == null) { + File tuscanyWar = new File(System.getProperty(TuscanyLifecycleListener.TUSCANY_WAR_PROP)); + File[] runtimeJars = new File(tuscanyWar, "tuscany-lib").listFiles(); + try { + URL[] jarURLs = new URL[runtimeJars.length]; + for (int i = 0; i < jarURLs.length; i++) { + jarURLs[i] = runtimeJars[i].toURI().toURL(); + } + tuscanyClassLoader = new URLClassLoader(jarURLs, parent); + + } catch (Exception e) { + throw new RuntimeException(e); + } + } + } + + private void initDomain() { + ClassLoader oldCL = Thread.currentThread().getContextClassLoader(); + try { + Thread.currentThread().setContextClassLoader(tuscanyClassLoader); + Class nodeFactoryClass = Class.forName("org.apache.tuscany.sca.node.NodeFactory", true, tuscanyClassLoader); + Method getInstanceMethod = nodeFactoryClass.getMethod("getInstance", new Class[0]); + Object instance = getInstanceMethod.invoke(null); + Method createNodeMethod = nodeFactoryClass.getMethod("createNode", new Class[]{URI.class, new String[0].getClass()}); + URI domainURI = URI.create(TuscanyLifecycleListener.getDomainURI()); + this.node = createNodeMethod.invoke(instance, new Object[]{domainURI, new String[0]}); + this.nodeClass = Class.forName("org.apache.tuscany.sca.node.Node", true, tuscanyClassLoader); + Method nodeStartMethod = nodeClass.getMethod("start", new Class[0]); + this.nodeStopMethod = nodeClass.getMethod("stop", new Class[0]); + nodeStartMethod.invoke(node); + } catch (Exception e) { + throw new RuntimeException(e); + } finally { + Thread.currentThread().setContextClassLoader(oldCL); + } + } + + @Override + public synchronized void stop() throws LifecycleException { + super.stop(); + + if (node != null && nodeStopMethod != null) { + try { + nodeStopMethod.invoke(node); + node = null; + } catch (Exception e) { + throw new RuntimeException(e); + } + } + } +} -- cgit v1.2.3