INTEGRATION: CWS uno2 (1.1.2); FILE ADDED

2003/04/15 09:31:36 sb 1.1.2.3: #107753# Adapted hashCode and equals.
2003/04/10 12:51:51 sb 1.1.2.2: #108678# Fixed handling of proxy's queryInterface when supported type equals requested type.
2003/04/07 08:30:54 sb 1.1.2.1: #108678# Replacement for com.sun.star.lib.uno.environments.java.Proxy.

1 files changed, 180 insertions, 0 deletions

diff --git a/jurt/com/sun/star/lib/uno/bridges/java_remote/ProxyFactory.java b/jurt/com/sun/star/lib/uno/bridges/java_remote/ProxyFactory.java
new file mode 100644
index 000000000000..7f4184f85751
--- /dev/null
+++ b/jurt/com/sun/star/lib/uno/bridges/java_remote/ProxyFactory.java
@@ -0,0 +1,180 @@
+/*************************************************************************
+ *
+ *  $RCSfile: ProxyFactory.java,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: rt $ $Date: 2003-04-23 17:03:38 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library 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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (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.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2002 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+package com.sun.star.lib.uno.bridges.java_remote;
+
+import com.sun.star.uno.IQueryInterface;
+import com.sun.star.uno.Type;
+import com.sun.star.uno.UnoRuntime;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+
+/**
+ * A factory for proxies specific to the <code>java_remote_bridge</code>.
+ *
+ * <p>Eventually, this class should be united with all other proxy classes
+ * specific to certain bridges (for example, the JNI bridge), resulting in a
+ * generic proxy class.</p>
+ */
+final class ProxyFactory {
+    public ProxyFactory(RequestHandler requestHandler) {
+        this.requestHandler = requestHandler;
+    }
+
+    public Object create(String oid, Type type) {
+        return java.lang.reflect.Proxy.newProxyInstance(
+            getClass().getClassLoader(),
+            new Class[] { com.sun.star.lib.uno.Proxy.class,
+                          IQueryInterface.class, type.getZClass() },
+            new Handler(oid, type));
+    }
+
+    static int getDebugCount() {
+        synchronized (debugCountLock) {
+            return debugCount;
+        }
+    }
+
+    private static void incrementDebugCount() {
+        synchronized (debugCountLock) {
+            ++debugCount;
+        }
+    }
+
+    private static void decrementDebugCount() {
+        synchronized (debugCountLock) {
+            --debugCount;
+        }
+    }
+
+    private final class Handler implements InvocationHandler {
+        public Handler(String oid, Type type) {
+            this.oid = oid;
+            this.type = type;
+            incrementDebugCount();
+        }
+
+        public Object invoke(Object proxy, Method method, Object[] args)
+            throws Throwable
+        {
+            if (method.equals(METHOD_EQUALS) || method.equals(METHOD_IS_SAME)) {
+                return new Boolean(
+                    args[0] != null
+                    && oid.equals(UnoRuntime.generateOid(args[0])));
+            } else if (method.equals(METHOD_HASH_CODE)) {
+                return new Integer(oid.hashCode());
+            } else if (method.equals(METHOD_TO_STRING)) {
+                return "[Proxy:" + System.identityHashCode(proxy) + "," + oid
+                    + "," + type + "]";
+            } else if (method.equals(METHOD_QUERY_INTERFACE)) {
+                return args[0].equals(type) ? proxy
+                    : request("queryInterface", args);
+            } else if (method.equals(METHOD_GET_OID)) {
+                return oid;
+            } else {
+                return request(method.getName(), args);
+            }
+        }
+
+        protected void finalize() throws Throwable {
+            try {
+                request("release", null);
+            } finally {
+                decrementDebugCount();
+            }
+        }
+
+        private Object request(String operation, Object[] args) throws Throwable
+        {
+            return requestHandler.sendRequest(oid, type, operation, args);
+        }
+
+        private final String oid;
+        private final Type type;
+    }
+
+    private static final Method METHOD_EQUALS;
+    private static final Method METHOD_HASH_CODE;
+    private static final Method METHOD_TO_STRING;
+    private static final Method METHOD_QUERY_INTERFACE;
+    private static final Method METHOD_IS_SAME;
+    private static final Method METHOD_GET_OID;
+    static {
+        try {
+            METHOD_EQUALS = Object.class.getMethod(
+                "equals", new Class[] { Object.class });
+            METHOD_HASH_CODE = Object.class.getMethod("hashCode", null);
+            METHOD_TO_STRING = Object.class.getMethod("toString", null);
+            METHOD_QUERY_INTERFACE = IQueryInterface.class.getMethod(
+                "queryInterface", new Class[] { Type.class });
+            METHOD_IS_SAME = IQueryInterface.class.getMethod(
+                "isSame", new Class[] { Object.class });
+            METHOD_GET_OID = IQueryInterface.class.getMethod("getOid", null);
+        } catch (NoSuchMethodException e) {
+            throw new ExceptionInInitializerError(e);
+        }
+    }
+
+    private static final Object debugCountLock = new Object();
+    private static int debugCount = 0;
+
+    private final RequestHandler requestHandler;
+}