2006-08-14 Mark Wielaard <mark@klomp.org>

       Imported GNU Classpath 0.92
       * HACKING: Add more importing hints. Update automake version
       requirement.

       * configure.ac (gconf-peer): New enable AC argument.
       Add --disable-gconf-peer and --enable-default-preferences-peer
       to classpath configure when gconf is disabled.
       * scripts/makemake.tcl: Set gnu/java/util/prefs/gconf and
       gnu/java/awt/dnd/peer/gtk to bc. Classify
       gnu/java/security/Configuration.java as generated source file.

       * gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java,
       gnu/java/lang/management/VMClassLoadingMXBeanImpl.java,
       gnu/java/lang/management/VMRuntimeMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryManagerMXBeanImpl.java,
       gnu/java/lang/management/VMThreadMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryMXBeanImpl.java,
       gnu/java/lang/management/VMCompilationMXBeanImpl.java: New VM stub
       classes.
       * java/lang/management/VMManagementFactory.java: Likewise.
       * java/net/VMURLConnection.java: Likewise.
       * gnu/java/nio/VMChannel.java: Likewise.

       * java/lang/Thread.java (getState): Add stub implementation.
       * java/lang/Class.java (isEnum): Likewise.
       * java/lang/Class.h (isEnum): Likewise.

       * gnu/awt/xlib/XToolkit.java (getClasspathTextLayoutPeer): Removed.

       * javax/naming/spi/NamingManager.java: New override for StackWalker
       functionality.

       * configure, sources.am, Makefile.in, gcj/Makefile.in,
       include/Makefile.in, testsuite/Makefile.in: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@116139 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 84 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/java/net/loader/URLStreamHandlerCache.java b/libjava/classpath/gnu/java/net/loader/URLStreamHandlerCache.java
new file mode 100644
index 00000000000..295a15d2b53
--- /dev/null
+++ b/libjava/classpath/gnu/java/net/loader/URLStreamHandlerCache.java
@@ -0,0 +1,84 @@
+/* URLStreamHandlerCache.java -- a cache for URLStreamHandlers
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.java.net.loader;
+
+import java.net.URLStreamHandler;
+import java.net.URLStreamHandlerFactory;
+import java.util.HashMap;
+
+/**
+ */
+public class URLStreamHandlerCache
+{
+  /**
+   * A cache to store mappings between handler factory and its
+   * private protocol handler cache (also a HashMap), so we can avoid
+   * creating handlers each time the same protocol comes.
+   */
+  private HashMap factoryCache = new HashMap(5);
+
+  public URLStreamHandlerCache()
+  {
+  }
+
+  public synchronized void add(URLStreamHandlerFactory factory)
+  {
+    // Since we only support three protocols so far, 5 is enough
+    // for cache initial size.
+    if (factory != null && factoryCache.get(factory) == null)
+      factoryCache.put(factory, new HashMap(5));
+  }
+
+  public synchronized URLStreamHandler get(URLStreamHandlerFactory factory,
+                                           String protocol)
+  {
+    if (factory == null)
+      return null;
+    // Check if there're handler for the same protocol in cache.
+    HashMap cache = (HashMap) factoryCache.get(factory);
+    URLStreamHandler handler = (URLStreamHandler) cache.get(protocol);
+    if (handler == null)
+      {
+        // Add it to cache.
+        handler = factory.createURLStreamHandler(protocol);
+        cache.put(protocol, handler);
+      }
+    return handler;
+  }
+}