/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



package com.sun.star.comp.bridge;

import com.sun.star.uno.Any;
import com.sun.star.uno.Type;
import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.XCurrentContext;
import test.testtools.bridgetest.XCurrentContextChecker;

final class CurrentContextChecker implements XCurrentContextChecker {
    public CurrentContextChecker() {}

    public boolean perform(
        XCurrentContextChecker other, int setSteps, int checkSteps)
    {
        if (setSteps == 0) {
            XCurrentContext old = UnoRuntime.getCurrentContext();
            UnoRuntime.setCurrentContext(
                new XCurrentContext() {
                    public Object getValueByName(String Name) {
                        return Name.equals(KEY)
                            ? (Object) VALUE : (Object) Any.VOID;
                    }
                });
            try {
                return performCheck(other, setSteps, checkSteps);
            } finally {
                UnoRuntime.setCurrentContext(old);
            }
        } else {
            return performCheck(other, setSteps, checkSteps);
        }
    }

    private boolean performCheck(
        XCurrentContextChecker other, int setSteps, int checkSteps)
    {
        // assert other != null && checkSteps >= 0;
        if (checkSteps == 0) {
            XCurrentContext context = UnoRuntime.getCurrentContext();
            if (context == null) {
                return false;
            }
            Any a = Any.complete(context.getValueByName(KEY));
            return
                a.getType().equals(Type.STRING) && a.getObject().equals(VALUE);
        } else {
            return other.perform(
                this, setSteps >= 0 ? setSteps - 1 : -1, checkSteps - 1);
        }
    }

    private static final String KEY = "testtools.bridgetest.Key";
    private static final String VALUE = "good";
}