1 files changed, 161 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/distribution/tomcat/tomcat-hook/src/main/java/org/apache/tuscany/sca/tomcat/TuscanyLifecycleListener.java b/sca-java-2.x/tags/2.0.1-RC1/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/tags/2.0.1-RC1/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
+ *   <Listener className="org.apache.tuscany.sca.tomcat.TuscanyLifecycleListener"/>
+ */
+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;
+    }
+}