[FOray-commit] SF.net SVN: foray: [7758] trunk/foray/foray-common/src/java/org/foray/common/url/classpath/Handler.java

[<vic...@us...>]

Revision: 7758
Author:   victormote
Date:     2006-07-07 18:23:15 -0700 (Fri, 07 Jul 2006)
ViewCVS:  http://svn.sourceforge.net/foray/?rev=7758&view=rev

Log Message:
-----------
Part of Vincent's patch. Uses the new Broker class to get the predefined Strategy.

Modified Paths:
--------------
    trunk/foray/foray-common/src/java/org/foray/common/url/classpath/Handler.java
Modified: trunk/foray/foray-common/src/java/org/foray/common/url/classpath/Handler.java
===================================================================
--- trunk/foray/foray-common/src/java/org/foray/common/url/classpath/Handler.java	2006-07-08 01:12:47 UTC (rev 7757)
+++ trunk/foray/foray-common/src/java/org/foray/common/url/classpath/Handler.java	2006-07-08 01:23:15 UTC (rev 7758)
@@ -28,7 +28,8 @@
 
 package org.foray.common.url.classpath;
 
-import org.foray.common.url.AbstractURLStreamHandler;
+import org.foray.common.url.ProtocolRegistrationBroker;
+import org.foray.common.url.ProtocolRegistrationStrategy;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -45,10 +46,12 @@
  *   <li><code>classpath:path/to/the/resource</code></li>
  * </ul>
  */
-public class Handler extends AbstractURLStreamHandler {
+public class Handler extends URLStreamHandler {
 
     private static final String PROTOCOL = "classpath";
 
+    private static boolean alreadyRegistered = false;
+
     protected URLConnection openConnection(URL u) {
         return new URLConnection(u) {
             public void connect() {}
@@ -69,13 +72,19 @@
     }
 
     /**
-     * Register an instance of this class with the custom
-     * URLStreamHandlerFactory so that this handler will be used for URLs of
-     * protocol "classpath".
+     * Register an instance of this class with the given ProtocolHandlerRegistry
+     * so that this handler will be used for URLs of protocol "classpath". This
+     * method may be safely called several times; only the first time will be
+     * the registration done.
      */
-    public static void register() {
-        URLStreamHandler handler = new Handler();
-        AbstractURLStreamHandler.register(Handler.PROTOCOL, handler);
+    public static synchronized void register() {
+        if (!alreadyRegistered) {
+            URLStreamHandler handler = new Handler();
+            ProtocolRegistrationStrategy registry =
+                    ProtocolRegistrationBroker.getRegistry();
+            registry.registerProtocolHandler(Handler.PROTOCOL, handler);
+            alreadyRegistered = true;
+        }
     }
 
 }


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