001/**
002 * Copyright 2005-2016 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krad.util;
017
018import org.kuali.rice.krad.util.GlobalVariables;
019
020import java.lang.reflect.InvocationHandler;
021import java.lang.reflect.Method;
022import java.util.concurrent.Callable;
023
024/**
025 * A proxy invocationhandler that implements around advice which pushes a new GlobalVariables frame before
026 * invocation and pops it after invocation.
027 * @see GlobalVariables#doInNewGlobalVariables
028 */
029public class GlobalVariablesContextInvocationHandler implements InvocationHandler {
030    private Object proxied;
031    public GlobalVariablesContextInvocationHandler(Object proxied) {
032        this.proxied = proxied;
033    }
034
035    @Override
036    public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable {
037        return GlobalVariables.doInNewGlobalVariables(new Callable() {
038            @Override
039            public Object call() throws Exception {
040                return method.invoke(proxied, args);
041            }
042        });
043    }
044}