3 files changed, 52 insertions, 8 deletions

diff --git a/netx/net/sourceforge/jnlp/Launcher.java b/netx/net/sourceforge/jnlp/Launcher.java
index 15b1e56..1692b0e 100644
--- a/netx/net/sourceforge/jnlp/Launcher.java
+++ b/netx/net/sourceforge/jnlp/Launcher.java
@@ -536,6 +536,9 @@ public class Launcher {
             try {
                 ServiceUtil.checkExistingSingleInstance(file);
             } catch (InstanceExistsException e) {
+                if (JNLPRuntime.isDebug()) {
+                    System.out.println("Single instance application is already running.");
+                }
                 return null;
             }
 
@@ -653,11 +656,17 @@ public class Launcher {
             throw launchError(new LaunchException(file, null, R("LSFatal"), R("LCClient"), R("LNotApplet"), R("LNotAppletInfo")));
 
         try {
+            ServiceUtil.checkExistingSingleInstance(file);
             AppletInstance applet = createApplet(file, enableCodeBase, cont);
             applet.initialize();
 
             applet.getAppletEnvironment().startApplet(); // this should be a direct call to applet instance
             return applet;
+        } catch (InstanceExistsException ieex) {
+            if (JNLPRuntime.isDebug()) {
+                System.out.println("Single instance applet is already running.");
+            }
+            throw launchError(new LaunchException(file, ieex, R("LSFatal"), R("LCLaunching"), R("LCouldNotLaunch"), R("LSingleInstanceExists")));
         } catch (LaunchException lex) {
             throw launchError(lex);
         } catch (Exception ex) {
@@ -673,9 +682,17 @@ public class Launcher {
             throw launchError(new LaunchException(file, null, R("LSFatal"), R("LCClient"), R("LNotApplet"), R("LNotAppletInfo")));
 
         try {
+            ServiceUtil.checkExistingSingleInstance(file);
+
             AppletInstance applet = createApplet(file, enableCodeBase, cont);
             applet.initialize();
             return applet;
+
+        } catch (InstanceExistsException ieex) {
+            if (JNLPRuntime.isDebug()) {
+                System.out.println("Single instance applet is already running.");
+            }
+            throw launchError(new LaunchException(file, ieex, R("LSFatal"), R("LCLaunching"), R("LCouldNotLaunch"), R("LSingleInstanceExists")));
         } catch (LaunchException lex) {
             throw launchError(lex);
         } catch (Exception ex) {
@@ -688,6 +705,8 @@ public class Launcher {
      * a thread in the application's thread group.
      */
     protected ApplicationInstance launchInstaller(JNLPFile file) throws LaunchException {
+        // TODO Check for an existing single instance once implemented.
+        // ServiceUtil.checkExistingSingleInstance(file);
         throw launchError(new LaunchException(file, null, R("LSFatal"), R("LCNotSupported"), R("LNoInstallers"), R("LNoInstallersInfo")));
     }
 
diff --git a/netx/net/sourceforge/jnlp/resources/Messages.properties b/netx/net/sourceforge/jnlp/resources/Messages.properties
index 3c42cb8..1f3a1e5 100644
--- a/netx/net/sourceforge/jnlp/resources/Messages.properties
+++ b/netx/net/sourceforge/jnlp/resources/Messages.properties
@@ -82,7 +82,8 @@ LSignedAppJarUsingUnsignedJar=Signed application using unsigned jars.
 LSignedAppJarUsingUnsignedJarInfo=The main application jar is signed, but some of the jars it is using aren't.

 LSignedJNLPFileDidNotMatch=The signed JNLP file did not match the launching JNLP file.

 LNoSecInstance=Error: No security instance for {0}. The application may have trouble continuing

-LCertFoundIn={0} found in cacerts ({1})

+LCertFoundIn={0} found in cacerts ({1})
+LSingleInstanceExists=Another instance of this applet already exists and only one may be run at the same time.

  

 JNotApplet=File is not an applet.

 JNotApplication=File is not an application.

diff --git a/netx/net/sourceforge/jnlp/services/XSingleInstanceService.java b/netx/net/sourceforge/jnlp/services/XSingleInstanceService.java
index 1a40794..35da018 100644
--- a/netx/net/sourceforge/jnlp/services/XSingleInstanceService.java
+++ b/netx/net/sourceforge/jnlp/services/XSingleInstanceService.java
@@ -24,11 +24,14 @@ import java.net.Socket;
 import java.net.UnknownHostException;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Map.Entry;
+import java.util.Set;
 
 import javax.jnlp.SingleInstanceListener;
 import javax.management.InstanceAlreadyExistsException;
 
 import net.sourceforge.jnlp.JNLPFile;
+import net.sourceforge.jnlp.PluginBridge;
 import net.sourceforge.jnlp.runtime.JNLPRuntime;
 
 /**
@@ -104,13 +107,14 @@ public class XSingleInstanceService implements ExtendedSingleInstanceService {
      * @throws InstanceAlreadyExistsException if the instance already exists
      */
     public void initializeSingleInstance() {
-        if (!initialized) {
-            // this is called after the application has started. so safe to use
-            // JNLPRuntime.getApplication()
-            checkSingleInstanceRunning(JNLPRuntime.getApplication().getJNLPFile());
+        // this is called after the application has started. so safe to use
+        // JNLPRuntime.getApplication()
+        JNLPFile jnlpFile = JNLPRuntime.getApplication().getJNLPFile();
+        if (!initialized || jnlpFile instanceof PluginBridge) {
+            // Either a new process or a new applet being handled by the plugin.
+            checkSingleInstanceRunning(jnlpFile);
             initialized = true;
             SingleInstanceLock lockFile;
-            JNLPFile jnlpFile = JNLPRuntime.getApplication().getJNLPFile();
             lockFile = new SingleInstanceLock(jnlpFile);
             if (!lockFile.isValid()) {
                 startListeningServer(lockFile);
@@ -127,6 +131,7 @@ public class XSingleInstanceService implements ExtendedSingleInstanceService {
      * @throws InstanceExistsException if an instance of this application
      *         already exists
      */
+    @Override
     public void checkSingleInstanceRunning(JNLPFile jnlpFile) {
         SingleInstanceLock lockFile = new SingleInstanceLock(jnlpFile);
         if (lockFile.isValid()) {
@@ -134,9 +139,28 @@ public class XSingleInstanceService implements ExtendedSingleInstanceService {
             if (JNLPRuntime.isDebug()) {
                 System.out.println("Lock file is valid (port=" + port + "). Exiting.");
             }
+
+            String[] args = null;
+            if (jnlpFile.isApplet()) {
+                // FIXME Proprietary plug-in is unclear about how to handle
+                // applets and their parameters. 
+                //Right now better to forward at least something
+                Set<Entry<String, String>> currentParams = jnlpFile.getApplet().getParameters().entrySet();
+                args = new String[currentParams.size() * 2];
+                int i = 0;
+                for (Entry<String, String> entry : currentParams) {
+                    args[i] = entry.getKey();
+                    args[i+1] = entry.getValue();
+                    i += 2;
+                }
+            } else if (jnlpFile.isInstaller()) {
+                // TODO Implement this once installer service is available.
+            } else {
+                args = jnlpFile.getApplication().getArguments();
+            }
+
             try {
-                sendProgramArgumentsToExistingApplication(port, jnlpFile.getApplication()
-                        .getArguments());
+                sendProgramArgumentsToExistingApplication(port, args);
                 throw new InstanceExistsException(String.valueOf(port));
             } catch (IOException e) {
                 throw new RuntimeException(e);