/*
 * 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 org.apache.dubbo.config.spring;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Use to set and clear System property
 */
public class SysProps {

    private static Map<String, String> map = new LinkedHashMap<String, String>();

    public static void reset() {
        map.clear();
    }

    public static void setProperty(String key, String value) {
        map.put(key, value);
        System.setProperty(key, value);
    }

    public static void clear() {
        for (String key : map.keySet()) {
            System.clearProperty(key);
        }
        reset();
    }

}
