Java Properties Get clearPrefixedSystemProperties(String prefix, Map targetPropertyMap)

Description

clearPrefixedSystemProperties clears System Properties by writing null properties in the targetPropertyMap that match a prefix

License

Open Source License

Parameter

Parameter	Description
prefix	prefix
targetPropertyMap	targetPropertyMap

Declaration

public static void clearPrefixedSystemProperties(String prefix, Map<String, String> targetPropertyMap) 

Method Source Code

//package com.java2s;
/*// w ww  .j  a v a  2 s  .c om
*  Copyright (c) 2005-2012, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
*  WSO2 Inc. 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.
*/

import java.util.*;

public class Main {
    /**
     * clearPrefixedSystemProperties clears System Properties by writing null properties in
     * the targetPropertyMap that match a prefix
     *
     * @param prefix            prefix
     * @param targetPropertyMap targetPropertyMap
     */
    public static void clearPrefixedSystemProperties(String prefix, Map<String, String> targetPropertyMap) {
        for (Object o : System.getProperties().keySet()) {
            String propertyName = (String) o;
            if (propertyName.startsWith(prefix) && !targetPropertyMap.containsKey(propertyName)) {
                targetPropertyMap.put(propertyName, null);
            }
        }
    }
}

Related

1. copyProperties(Hashtable src, Hashtable target)
2. getBoolean(Properties props, String key)
3. getBoolean(Properties props, String name, boolean defaultValue)
4. getInt(Properties props, String name)