jdk/src/share/classes/com/sun/script/util/InterfaceImplementor.java
changeset 17462 c1bfafc15e02
parent 17461 84860231159b
parent 17460 19eb5d62770a
child 17463 9392f1567896
--- a/jdk/src/share/classes/com/sun/script/util/InterfaceImplementor.java	Mon May 13 12:26:28 2013 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,111 +0,0 @@
-/*
- * Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code 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
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package com.sun.script.util;
-
-import javax.script.*;
-import java.lang.reflect.*;
-import java.security.*;
-
-/*
- * java.lang.reflect.Proxy based interface implementor. This is meant
- * to be used to implement Invocable.getInterface.
- *
- * @author Mike Grogan
- * @since 1.6
- */
-public class InterfaceImplementor {
-
-    private Invocable engine;
-
-    /** Creates a new instance of Invocable */
-    public InterfaceImplementor(Invocable engine) {
-        this.engine = engine;
-    }
-
-    private final class InterfaceImplementorInvocationHandler
-                        implements InvocationHandler {
-        private Object thiz;
-        private AccessControlContext accCtxt;
-
-        public InterfaceImplementorInvocationHandler(Object thiz,
-            AccessControlContext accCtxt) {
-            this.thiz = thiz;
-            this.accCtxt = accCtxt;
-        }
-
-        public Object invoke(Object proxy , Method method, Object[] args)
-        throws java.lang.Throwable {
-            // give chance to convert input args
-            args = convertArguments(method, args);
-            Object result;
-            final Method m = method;
-            final Object[] a = args;
-            result = AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
-                public Object run() throws Exception {
-                    if (thiz == null) {
-                        return engine.invokeFunction(m.getName(), a);
-                    } else {
-                        return engine.invokeMethod(thiz, m.getName(), a);
-                    }
-                }
-            }, accCtxt);
-            // give chance to convert the method result
-            return convertResult(method, result);
-        }
-    }
-
-    public <T> T getInterface(Object thiz, Class<T> iface)
-    throws ScriptException {
-        if (iface == null || !iface.isInterface()) {
-            throw new IllegalArgumentException("interface Class expected");
-        }
-        if (! isImplemented(thiz, iface)) {
-            return null;
-        }
-        AccessControlContext accCtxt = AccessController.getContext();
-        return iface.cast(Proxy.newProxyInstance(iface.getClassLoader(),
-            new Class[]{iface},
-            new InterfaceImplementorInvocationHandler(thiz, accCtxt)));
-    }
-
-    protected boolean isImplemented(Object thiz, Class<?> iface) {
-        return true;
-    }
-
-    // called to convert method result after invoke
-    protected Object convertResult(Method method, Object res)
-                                   throws ScriptException {
-        // default is identity conversion
-        return res;
-    }
-
-    // called to convert method arguments before invoke
-    protected Object[] convertArguments(Method method, Object[] args)
-                                      throws ScriptException {
-        // default is identity conversion
-        return args;
-    }
-}