Make the launcher more independent of Equinox by using the framework launch APIs

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@794776 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 216 insertions, 84 deletions

diff --git a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/EquinoxHost.java b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/EquinoxHost.java
index 26d57cf11a..e730333cd2 100644
--- a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/EquinoxHost.java
+++ b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/EquinoxHost.java
@@ -33,7 +33,6 @@ import static org.apache.tuscany.sca.node.equinox.launcher.NodeLauncherUtil.thir
 import static org.apache.tuscany.sca.node.equinox.launcher.NodeLauncherUtil.thisBundleLocation;
 
 import java.io.File;
-import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
@@ -55,18 +54,37 @@ import java.util.UUID;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import org.eclipse.core.runtime.adaptor.EclipseStarter;
-import org.eclipse.core.runtime.adaptor.LocationManager;
 import org.osgi.framework.Bundle;
 import org.osgi.framework.BundleContext;
 import org.osgi.framework.BundleException;
+import org.osgi.framework.launch.Framework;
 
 /**
  * Wraps the Equinox runtime.
  */
 public class EquinoxHost {
+    static final String PROP_OSGI_CONTEXT_CLASS_LOADER_PARENT = "osgi.contextClassLoaderParent";
+
+    static final String PROP_OSGI_CLEAN = "osgi.clean";
+
+    static final String PROP_USER_NAME = "user.name";
+
     private static Logger logger = Logger.getLogger(EquinoxHost.class.getName());
 
+    static final String PROP_INSTALL_AREA = "osgi.install.area";
+    static final String PROP_CONFIG_AREA = "osgi.configuration.area";
+    static final String PROP_CONFIG_AREA_DEFAULT = "osgi.configuration.area.default";
+    static final String PROP_SHARED_CONFIG_AREA = "osgi.sharedConfiguration.area";
+    static final String PROP_INSTANCE_AREA = "osgi.instance.area";
+    static final String PROP_INSTANCE_AREA_DEFAULT = "osgi.instance.area.default";
+    static final String PROP_USER_AREA = "osgi.user.area";
+    static final String PROP_USER_AREA_DEFAULT = "osgi.user.area.default";
+
+    /**
+     * If the class is loaded inside OSGi, then the bundle context will be injected by the activator
+     */
+    static BundleContext injectedBundleContext;
+
     static {
         if (getSystemProperty("osgi.debug") != null) {
             logger.setLevel(Level.FINE);
@@ -75,7 +93,6 @@ public class EquinoxHost {
 
     private BundleContext bundleContext;
     private Bundle launcherBundle;
-    private boolean startedEclipse;
     private List<URL> bundleFiles = new ArrayList<URL>();
     private List<String> bundleNames = new ArrayList<String>();
     private Collection<URL> jarFiles = new HashSet<URL>();
@@ -85,6 +102,9 @@ public class EquinoxHost {
     private Set<URL> bundleLocations;
     private boolean aggregateThirdPartyJars = false;
 
+    private FrameworkLauncher frameworkLauncher = new FrameworkLauncher();
+    private Framework framework;
+
     public EquinoxHost() {
         super();
     }
@@ -132,7 +152,7 @@ public class EquinoxHost {
      */
     public BundleContext start() {
         try {
-            if (!EclipseStarter.isRunning()) {
+            if (injectedBundleContext == null) {
 
                 String version = getSystemProperty("java.specification.version");
                 String profile = "J2SE-1.5.profile";
@@ -151,10 +171,10 @@ public class EquinoxHost {
                 // Configure Eclipse properties
 
                 // Use the boot classloader as the parent classloader
-                put(props, "osgi.contextClassLoaderParent", "app");
+                put(props, PROP_OSGI_CONTEXT_CLASS_LOADER_PARENT, "app");
 
                 // Set startup properties
-                put(props, EclipseStarter.PROP_CLEAN, "true");
+                put(props, PROP_OSGI_CLEAN, "true");
 
                 // Set location properties
                 // FIXME Use proper locations
@@ -163,7 +183,7 @@ public class EquinoxHost {
                 // Add user name as the prefix. For multiple users on the same Lunix,
                 // there will be permission issue if one user creates the .tuscany folder
                 // first under /tmp with no write permission for others.
-                String userName = getSystemProperty("user.name");
+                String userName = getSystemProperty(PROP_USER_NAME);
                 if (userName != null) {
                     root = new File(root, userName);
                 }
@@ -172,39 +192,17 @@ public class EquinoxHost {
                     logger.fine("Equinox location: " + root);
                 }
 
-                put(props, LocationManager.PROP_INSTANCE_AREA_DEFAULT, new File(root, "workspace").toURI().toString());
-                put(props, LocationManager.PROP_INSTALL_AREA, new File(root, "install").toURI().toString());
-                put(props, LocationManager.PROP_CONFIG_AREA_DEFAULT, new File(root, "config").toURI().toString());
-                put(props, LocationManager.PROP_USER_AREA_DEFAULT, new File(root, "user").toURI().toString());
+                put(props, PROP_INSTANCE_AREA_DEFAULT, new File(root, "workspace").toURI().toString());
+                put(props, PROP_INSTALL_AREA, new File(root, "install").toURI().toString());
+                put(props, PROP_CONFIG_AREA_DEFAULT, new File(root, "config").toURI().toString());
+                put(props, PROP_USER_AREA_DEFAULT, new File(root, "user").toURI().toString());
 
-                EclipseStarter.setInitialProperties(props);
-
-                // Test if the configuration/config.ini or osgi.bundles has been set
-                // If yes, try to avoid discovery of bundles
-                if (bundleLocations == null) {
-                    if (props.getProperty("osgi.bundles") != null) {
-                        bundleLocations = Collections.emptySet();
-                    } else {
-                        String config = props.getProperty(LocationManager.PROP_CONFIG_AREA);
-                        File ini = new File(config, "config.ini");
-                        if (ini.isFile()) {
-                            Properties iniProps = new Properties();
-                            iniProps.load(new FileInputStream(ini));
-                            if (iniProps.getProperty("osgi.bundles") != null) {
-                                bundleLocations = Collections.emptySet();
-                            }
-                        }
-                    }
-                }
-
-                // Start Eclipse
-                bundleContext = EclipseStarter.startup(new String[] {}, null);
-                startedEclipse = true;
+                startFramework(props);
 
             } else {
 
                 // Get bundle context from the running Eclipse instance
-                bundleContext = EclipseStarter.getSystemBundleContext();
+                bundleContext = injectedBundleContext;
             }
 
             // Determine the runtime classpath entries
@@ -274,7 +272,7 @@ public class EquinoxHost {
             }
 
             // Install all the other bundles that are not already installed
-            for (URL bundleFile: bundleFiles) {
+            for (URL bundleFile : bundleFiles) {
                 fixupBundle(bundleFile.toString());
             }
             for (int i = 0, n = bundleFiles.size(); i < n; i++) {
@@ -321,30 +319,30 @@ public class EquinoxHost {
             throw new IllegalStateException(e);
         }
     }
-    
+
     /**
      * Start all the bundles as a check for class loading issues
      * @param bundleContext - the bundle context
      */
-    private void startBundles( BundleContext bundleContext ) {
-    	
-        for (Bundle bundle: bundleContext.getBundles()) {
-        //    if (bundle.getSymbolicName().startsWith("org.apache.tuscany.sca")) {
-                if ((bundle.getState() & Bundle.ACTIVE) == 0) {
-                    if (logger.isLoggable(Level.FINE)) {
-                        logger.fine("Starting bundle: " + string(bundle, false));
-                    } // end if
-                    try {
-                        bundle.start();
-                    } catch (Exception e) {
-                        logger.log(Level.SEVERE, e.getMessage(), e);
-                        // throw e;
-                    } // end try
-                    if (logger.isLoggable(Level.FINE)) {
-                        logger.fine("Bundle: " + string(bundle, false));
-                    } // end if
-                } //  end if
-        //    } // end if
+    private void startBundles(BundleContext bundleContext) {
+
+        for (Bundle bundle : bundleContext.getBundles()) {
+            //    if (bundle.getSymbolicName().startsWith("org.apache.tuscany.sca")) {
+            if ((bundle.getState() & Bundle.ACTIVE) == 0) {
+                if (logger.isLoggable(Level.FINE)) {
+                    logger.fine("Starting bundle: " + string(bundle, false));
+                } // end if
+                try {
+                    bundle.start();
+                } catch (Exception e) {
+                    logger.log(Level.SEVERE, e.getMessage(), e);
+                    // throw e;
+                } // end try
+                if (logger.isLoggable(Level.FINE)) {
+                    logger.fine("Bundle: " + string(bundle, false));
+                } // end if
+            } //  end if
+            //    } // end if
         } // end for
         logger.fine("Tuscany bundles are started.");
         return;
@@ -379,7 +377,7 @@ public class EquinoxHost {
         if (bundle == null) {
             long installStart = currentTimeMillis();
             String location = bundleFile.toString();
-            if ("file".equals(bundleFile.getProtocol())) {
+            if (frameworkLauncher.isEquinox() && "file".equals(bundleFile.getProtocol())) {
                 File target = file(bundleFile);
                 // Use a special "reference" scheme to install the bundle as a reference
                 // instead of copying the bundle
@@ -410,12 +408,13 @@ public class EquinoxHost {
             InputStream is = thirdPartyLibraryBundle(Collections.singleton(jarFile), symbolicName, version);
             // try/catch and output message added 10/04/2009 Mike Edwards
             try {
-            bundle = bundleContext.installBundle(symbolicName, is);
-            allBundles.put(symbolicName, bundle);
-            installedBundles.add(bundle);
+                bundle = bundleContext.installBundle(symbolicName, is);
+                allBundles.put(symbolicName, bundle);
+                installedBundles.add(bundle);
             } catch (BundleException e) {
-            	System.out.println("EquinoxHost:installAsBundle - BundleException raised when dealing with jar " + symbolicName);
-            	throw (e);
+                System.out
+                    .println("EquinoxHost:installAsBundle - BundleException raised when dealing with jar " + symbolicName);
+                throw (e);
             } // end try
             // end of addition
         }
@@ -424,7 +423,7 @@ public class EquinoxHost {
 
     private Set<URL> findBundleLocations() throws FileNotFoundException, URISyntaxException, MalformedURLException {
         if (bundleLocations == null) {
-            if (!startedEclipse) {
+            if (injectedBundleContext != null) {
 
                 // Use classpath entries from a distribution if there is one and the modules
                 // directories available in a dev environment for example
@@ -433,10 +432,10 @@ public class EquinoxHost {
 
                 // Use classpath entries from a distribution if there is one and the classpath
                 // entries on the current application's classloader
-            	// *** Changed by Mike Edwards, 9th April 2009 ***
-            	// -- this place is reached when starting from within Eclipse so why use the classpath??
-            	// bundleLocations = runtimeClasspathEntries(true, true, false);
-            	// Instead search the modules directory
+                // *** Changed by Mike Edwards, 9th April 2009 ***
+                // -- this place is reached when starting from within Eclipse so why use the classpath??
+                // bundleLocations = runtimeClasspathEntries(true, true, false);
+                // Instead search the modules directory
                 bundleLocations = runtimeClasspathEntries(true, true, true);
             }
         }
@@ -463,17 +462,67 @@ public class EquinoxHost {
             }
             installedBundles.clear();
 
-            // Shutdown Eclipse if we started it ourselves
-            if (startedEclipse) {
-                startedEclipse = false;
-                EclipseStarter.shutdown();
-            }
+            stopFramework();
 
         } catch (Exception e) {
             throw new IllegalStateException(e);
         }
     }
 
+    /*
+    private void startFramework(Properties props) throws Exception {
+        EclipseStarter.setInitialProperties(props);
+
+        // Test if the configuration/config.ini or osgi.bundles has been set
+        // If yes, try to avoid discovery of bundles
+        if (bundleLocations == null) {
+            if (props.getProperty("osgi.bundles") != null) {
+                bundleLocations = Collections.emptySet();
+            } else {
+                String config = props.getProperty(PROP_CONFIG_AREA);
+                File ini = new File(config, "config.ini");
+                if (ini.isFile()) {
+                    Properties iniProps = new Properties();
+                    iniProps.load(new FileInputStream(ini));
+                    if (iniProps.getProperty("osgi.bundles") != null) {
+                        bundleLocations = Collections.emptySet();
+                    }
+                }
+            }
+        }
+
+        // Start Eclipse
+        bundleContext = EclipseStarter.startup(new String[] {}, null);
+    }
+
+    private void stopFramework() throws Exception {
+        // Shutdown Eclipse if we started it ourselves
+        if (injectedBundleContext == null) {
+            EclipseStarter.shutdown();
+        }
+    }
+    */
+    
+    private void startFramework(Map configuration) throws Exception {
+        if (framework != null) {
+            throw new IllegalStateException("The OSGi framework has been started");
+        }
+        framework = frameworkLauncher.newFramework(configuration);
+        framework.start();
+        this.bundleContext = framework.getBundleContext();
+    }
+
+    private void stopFramework() throws Exception {
+        // Shutdown Eclipse if we started it ourselves
+        if (injectedBundleContext == null) {
+            framework.stop();
+            framework.waitForStop(5000);
+            framework = null;
+            bundleContext = null;
+        }
+    }    
+    
+
     public void setBundleLocations(Set<URL> bundleLocations) {
         this.bundleLocations = bundleLocations;
     }
diff --git a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java
new file mode 100644
index 0000000000..858dbe3885
--- /dev/null
+++ b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/FrameworkLauncher.java
@@ -0,0 +1,93 @@
+/*

+ * 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.equinox.launcher;

+

+import java.util.Hashtable;

+import java.util.Map;

+import java.util.logging.Level;

+import java.util.logging.Logger;

+

+import org.eclipse.osgi.framework.console.CommandProvider;

+import org.osgi.framework.BundleActivator;

+import org.osgi.framework.BundleContext;

+import org.osgi.framework.launch.Framework;

+import org.osgi.framework.launch.FrameworkFactory;

+

+/**

+ * Launcher for the OSGi framework using the framework launch APIs

+ */

+public class FrameworkLauncher implements BundleActivator {

+    private static final Logger logger = Logger.getLogger(FrameworkLauncher.class.getName());

+

+    private FrameworkFactory factory;

+    private boolean isEquinox;

+

+    @SuppressWarnings("unchecked")

+    private synchronized FrameworkFactory loadFrameworkFactory() {

+        if (factory == null) {

+            // Use reflection APIs to call ServiceDiscovery to avoid hard dependency to tuscany-extensibility

+            try {

+                Class<?> discoveryClass = Class.forName("org.apache.tuscany.sca.extensibility.ServiceDiscovery");

+                Object instance = discoveryClass.getMethod("getInstance").invoke(null);

+                Object factoryDeclaration =

+                    discoveryClass.getMethod("getServiceDeclaration", String.class).invoke(instance,

+                                                                                           FrameworkFactory.class

+                                                                                               .getName());

+                if (factoryDeclaration != null) {

+                    Class<? extends FrameworkFactory> factoryImplClass =

+                        (Class<? extends FrameworkFactory>)factoryDeclaration.getClass().getMethod("loadClass")

+                            .invoke(factoryDeclaration);

+                    factory = factoryImplClass.newInstance();

+                    if (factory != null && factory.getClass().getName().startsWith("org.eclipse.osgi.")) {

+                        isEquinox = true;

+                    }

+                }

+            } catch (Throwable e) {

+                logger.log(Level.SEVERE, e.getMessage(), e);

+            }

+        }

+        return factory;

+    }

+

+    public Framework newFramework(Map properties) {

+        FrameworkFactory factory = loadFrameworkFactory();

+        return factory.newFramework(properties);

+    }

+

+    public boolean isEquinox() {

+        return isEquinox;

+    }

+

+    public void start(BundleContext context) throws Exception {

+        EquinoxHost.injectedBundleContext = context;

+        if (context.getClass().getName().startsWith("org.eclipse.osgi.")) {

+            isEquinox = true;

+            try {

+                context.registerService(CommandProvider.class.getName(), new NodeLauncherCommand(), new Hashtable());

+            } catch (NoClassDefFoundError e) {

+                // Ignore it

+            }

+        }

+    }

+

+    public void stop(BundleContext context) throws Exception {

+        EquinoxHost.injectedBundleContext = null;

+    }

+}

diff --git a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/NodeLauncherCommand.java b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/NodeLauncherCommand.java
index d4f3da6105..b85e3e4e71 100644
--- a/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/NodeLauncherCommand.java
+++ b/java/sca/modules/node-launcher-equinox/src/main/java/org/apache/tuscany/sca/node/equinox/launcher/NodeLauncherCommand.java
@@ -20,19 +20,16 @@
 package org.apache.tuscany.sca.node.equinox.launcher;

 

 import java.util.ArrayList;

-import java.util.Hashtable;

 import java.util.List;

 

 import org.eclipse.osgi.framework.console.CommandInterpreter;

 import org.eclipse.osgi.framework.console.CommandProvider;

-import org.osgi.framework.BundleActivator;

-import org.osgi.framework.BundleContext;

 

 /**

  * An Equinox console command extension for Tuscany

  * http://www.ibm.com/developerworks/library/os-ecl-osgiconsole/index.html

  */

-public class NodeLauncherCommand implements CommandProvider, BundleActivator {

+public class NodeLauncherCommand implements CommandProvider {

 

     public String getHelp() {

         return "---Apache Tuscany Commands for Equinox---\n"

@@ -57,11 +54,4 @@ public class NodeLauncherCommand implements CommandProvider, BundleActivator {
         NodeLauncher.main(args.toArray(new String[args.size()]));

     }

 

-    public void start(BundleContext context) throws Exception {

-        context.registerService(CommandProvider.class.getName(), this, new Hashtable());

-    }

-

-    public void stop(BundleContext context) throws Exception {

-    }

-

 }