From 55b540f9e811904e259aae9be278bc4e41302619 Mon Sep 17 00:00:00 2001
From: antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68>
Date: Tue, 10 Feb 2009 12:25:54 +0000
Subject: Simplify launcher default config so it can automatically determine to
 use unmanaged jar

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@742952 13f79535-47bb-0310-9956-ffa450edef68
---
 .../all/src/main/release/launcher/default.config   |  2 +-
 .../apache/tuscany/sca/launcher/LauncherMain.java  | 23 ++++++++++++++++++++--
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/java/sca/distribution/all/src/main/release/launcher/default.config b/java/sca/distribution/all/src/main/release/launcher/default.config
index e5cc9b026b..e7e8c2a5ac 100644
--- a/java/sca/distribution/all/src/main/release/launcher/default.config
+++ b/java/sca/distribution/all/src/main/release/launcher/default.config
@@ -1,5 +1,5 @@
 classpath=modules/**
-mainClass=org.apache.tuscany.sca.node.NodeMain2
+mainClass=[firstArgJarManifestMainClass]|org.apache.tuscany.sca.node.NodeMain2
 -Djava.util.logging.config.file={TUSCANY_HOME}/samples/logging.properties
 
 
diff --git a/java/sca/modules/launcher/src/main/java/org/apache/tuscany/sca/launcher/LauncherMain.java b/java/sca/modules/launcher/src/main/java/org/apache/tuscany/sca/launcher/LauncherMain.java
index 35e6060d0f..026ed04055 100644
--- a/java/sca/modules/launcher/src/main/java/org/apache/tuscany/sca/launcher/LauncherMain.java
+++ b/java/sca/modules/launcher/src/main/java/org/apache/tuscany/sca/launcher/LauncherMain.java
@@ -95,6 +95,10 @@ public class LauncherMain {
         } else {
             mainClassName = launcherProperties.getProperty(CONFIG_MAIN_CLASS);
         }
+
+        if (mainClassName.startsWith(CONFIG_ARG_JAR_MAIN + "|")) {
+            mainClassName = mainClassName.substring(CONFIG_ARG_JAR_MAIN.length()+1);
+        }
         
         return mainClassName;
     }
@@ -120,8 +124,10 @@ public class LauncherMain {
             String pn = (String) e.nextElement();
             if (pn.startsWith(CONFIG_CLASSPATH)) {
                 jarURLs.addAll(getJARs(launcherProperties.getProperty(pn), launcherProperties));
-            } else if (pn.equals(CONFIG_MAIN_CLASS) && launcherProperties.getProperty(pn).equals(CONFIG_ARG_JAR_MAIN)) {
-                jarURLs.add(firstArgJarManifestMainClass(launcherProperties));
+            } else if (pn.equals(CONFIG_MAIN_CLASS) && launcherProperties.getProperty(pn).startsWith(CONFIG_ARG_JAR_MAIN)) {
+                if (firstArgJarHasManifestMainClass(launcherProperties)) {
+                    jarURLs.add(firstArgJarManifestMainClass(launcherProperties));
+                }
             }
         }
         ClassLoader parentCL = Thread.currentThread().getContextClassLoader();
@@ -150,6 +156,19 @@ public class LauncherMain {
         return f.toURL();
     }
 
+    private static boolean firstArgJarHasManifestMainClass(Properties launcherProperties) throws IOException {
+        String[] args = (String[])launcherProperties.get(LAUNCHER_ARGS);
+        if (args.length < 1) {
+            return false;
+        }
+        File f = new File(args[0]);
+        if (!f.exists()) {
+            return false;
+        }
+        JarFile jar = new JarFile(f);
+        String mfc = jar.getManifest().getMainAttributes().getValue("Main-Class");
+        return mfc != null && mfc.length() > 0;
+    }
     /**
      * Gets the jars matching a config classpath property
      * property values may be an explicit jar name or use an asterix wildcard for
-- 
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