1 /* 2 * Copyright (c) 2004, 2006, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.corba.se.spi.orbutil.proxy ; 27 28 import java.io.Serializable ; 29 30 import java.util.Map ; 31 import java.util.LinkedHashMap ; 32 33 import java.lang.reflect.Proxy ; 34 import java.lang.reflect.Method ; 35 import java.lang.reflect.InvocationHandler ; 36 import java.lang.reflect.InvocationTargetException ; 37 import com.sun.corba.se.impl.presentation.rmi.DynamicAccessPermission ; 38 39 public abstract class DelegateInvocationHandlerImpl 40 { 41 private DelegateInvocationHandlerImpl() {} 42 43 public static InvocationHandler create( final Object delegate ) 44 { 45 SecurityManager s = System.getSecurityManager(); 46 if (s != null) { 47 s.checkPermission(new DynamicAccessPermission("access")); 48 } 49 return new InvocationHandler() { 50 public Object invoke( Object proxy, Method method, Object[] args ) 51 throws Throwable 52 { 53 // This throws an IllegalArgument exception if the delegate 54 // is not assignable from method.getDeclaring class. 55 try { 56 return method.invoke( delegate, args ) ; 57 } catch (InvocationTargetException ite) { 58 // Propagate the underlying exception as the 59 // result of the invocation 60 throw ite.getCause() ; 61 } 62 } 63 } ; 64 } 65 }