Java Properties to Map toMap(Properties properties)

Description

to Map

License

Apache License

Declaration

public static Map<String, String> toMap(Properties properties) 

Method Source Code

//package com.java2s;
/*//from   w ww.j  a v a 2 s .com
 * #!
 * Ontopia Engine
 * #-
 * Copyright (C) 2001 - 2013 The Ontopia Project
 * #-
 * Licensed 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.HashMap;
import java.util.Map;
import java.util.Properties;

public class Main {
    public static Map<String, String> toMap(Properties properties) {
        Map<String, String> result = new HashMap<String, String>(properties.size());
        for (String key : properties.stringPropertyNames()) {
            result.put(key, properties.getProperty(key));
        }
        return result;
    }

    /**
     * INTERNAL: Helper method used to get better error messages with
     * less typing.
     */
    public static String getProperty(Map<String, String> properties, String name) {
        return getProperty(properties, name, true);
    }

    /**
     * INTERNAL: Helper method used to get better error messages with
     * less typing.
     */
    public static String getProperty(Map<String, String> properties, String name, boolean required) {
        String value = properties.get(name);
        if (value == null) {
            if (!required)
                return null;
            else
                throw new IllegalArgumentException("No value for required property '" + name + "'");
        }
        return value;
    }
}

Related

1. toMap(Properties properties)
2. toMap(Properties properties)
3. toMap(Properties properties)
4. toMap(Properties properties)
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8. toMap(Properties props)
9. toMap(Properties props)