Rename packages in OSGi boot

[lgpl/argeo-commons.git] / osgi / runtime / org.argeo.osgi.boot / src / main / java / org / argeo / osgi / boot / Launcher.java

diff --git a/osgi/runtime/org.argeo.osgi.boot/src/main/java/org/argeo/osgi/boot/Launcher.java b/osgi/runtime/org.argeo.osgi.boot/src/main/java/org/argeo/osgi/boot/Launcher.java
new file mode 100644 (file)
index 0000000..98d7503
--- /dev/null
+++ b/osgi/runtime/org.argeo.osgi.boot/src/main/java/org/argeo/osgi/boot/Launcher.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2010 Mathieu Baudier <mbaudier@argeo.org>
+ *
+ * Licensed 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.argeo.osgi.boot;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.lang.reflect.Method;
+import java.util.List;
+import java.util.Vector;
+
+import org.eclipse.core.runtime.adaptor.EclipseStarter;
+import org.osgi.framework.BundleContext;
+
+public class Launcher {
+
+       public static void main(String[] args) {
+               // Try to load system properties
+               String systemPropertiesFilePath = OsgiBootUtils.getPropertyCompat(
+                               OsgiBoot.PROP_ARGEO_OSGI_BOOT_SYSTEM_PROPERTIES_FILE,
+                               OsgiBoot.PROP_SLC_OSGIBOOT_SYSTEM_PROPERTIES_FILE);
+               if (systemPropertiesFilePath != null) {
+                       FileInputStream in;
+                       try {
+                               in = new FileInputStream(systemPropertiesFilePath);
+                               System.getProperties().load(in);
+                       } catch (IOException e1) {
+                               throw new RuntimeException(
+                                               "Cannot load system properties from "
+                                                               + systemPropertiesFilePath, e1);
+                       }
+                       if (in != null) {
+                               try {
+                                       in.close();
+                               } catch (Exception e) {
+                                       // silent
+                               }
+                       }
+               }
+
+               // Start main class
+               startMainClass();
+
+               // Start Equinox
+               BundleContext bundleContext = null;
+               try {
+                       bundleContext = EclipseStarter.startup(args, null);
+               } catch (Exception e) {
+                       throw new RuntimeException("Cannot start Equinox.", e);
+               }
+
+               // OSGi bootstrap
+               OsgiBoot osgiBoot = new OsgiBoot(bundleContext);
+               osgiBoot.bootstrap();
+       }
+
+       protected static void startMainClass() {
+               // Properties config = System.getProperties();
+               // String className = config.getProperty("slc.osgiboot.appclass");
+               String className = OsgiBootUtils.getPropertyCompat(
+                               OsgiBoot.PROP_ARGEO_OSGI_BOOT_APPCLASS,
+                               OsgiBoot.PROP_SLC_OSGIBOOT_APPCLASS);
+               if (className == null)
+                       return;
+
+               // should use OsgiBootUtils.getPropertyCompat(), but it does not 
+               // work for "" as default value
+               // so no warning displayed if PROP_SLC_OSGIBOOT_APPARGS is used
+               // FIXME: change OsgiBootUtils.getPropertyCompat()
+               String line = System.getProperty(OsgiBoot.PROP_ARGEO_OSGI_BOOT_APPARGS, 
+                               System.getProperty(OsgiBoot.PROP_SLC_OSGIBOOT_APPARGS, ""));            
+               
+               String[] uiArgs = readArgumentsFromLine(line);
+               
+               try {
+                       // Launch main method using reflection
+                       Class clss = Class.forName(className);
+                       Class[] mainArgsClasses = new Class[] { uiArgs.getClass() };
+                       Object[] mainArgs = { uiArgs };
+                       Method mainMethod = clss.getMethod("main", mainArgsClasses);
+                       mainMethod.invoke(null, mainArgs);
+               } catch (Exception e) {
+                       throw new RuntimeException("Cannot start main class.", e);
+               }
+
+       }
+
+       /**
+        * Transform a line into an array of arguments, taking "" as single
+        * arguments. (nested \" are not supported)
+        */
+       private static String[] readArgumentsFromLine(String lineOrig) {
+
+               String line = lineOrig.trim();// remove trailing spaces
+               // System.out.println("line=" + line);
+               List args = new Vector();
+               StringBuffer curr = new StringBuffer("");
+               boolean inQuote = false;
+               char[] arr = line.toCharArray();
+               for (int i = 0; i < arr.length; i++) {
+                       char c = arr[i];
+                       switch (c) {
+                       case '\"':
+                               inQuote = !inQuote;
+                               break;
+                       case ' ':
+                               if (!inQuote) {// otherwise, no break: goes to default
+                                       if (curr.length() > 0) {
+                                               args.add(curr.toString());
+                                               curr = new StringBuffer("");
+                                       }
+                                       break;
+                               }
+                       default:
+                               curr.append(c);
+                               break;
+                       }
+               }
+
+               // Add last arg
+               if (curr.length() > 0) {
+                       args.add(curr.toString());
+                       curr = null;
+               }
+
+               String[] res = new String[args.size()];
+               for (int i = 0; i < args.size(); i++) {
+                       res[i] = args.get(i).toString();
+                       // System.out.println("res[i]=" + res[i]);
+               }
+               return res;
+       }
+
+}