Java Properties Load from File load(String resource)

Description

Load properties from the given name resource.

License

Apache License

Parameter

Parameter	Description
resource	name a of resource.

Return

empty properties if no resource found.

Declaration

public static Map<String, Object> load(String resource) 

Method Source Code

//package com.java2s;
/*//  ww  w.j av a2 s.  c om
 *  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.io.FileInputStream;
import java.io.InputStream;

import java.util.HashMap;

import java.util.Map;
import java.util.Properties;

public class Main {
    /**
     * Load properties from the given name resource.
     * The given named resource is first looked up as resource on the current thread's context
     * and if not found as a file input.
     * 
     * @param resource name a of resource. 
     * 
     * @return empty properties if no resource found.
     */
    public static Map<String, Object> load(String resource) {
        Properties p = new Properties();
        try {
            InputStream stream = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource);
            if (stream == null) {
                stream = new FileInputStream(resource);
            }
            p.load(stream);
        } catch (Exception e) {
            System.err.println("Error reading " + resource + " due to " + e);
        }
        return toMap(p);
    }

    public static Map<String, Object> toMap(Properties p) {
        Map<String, Object> result = new HashMap<String, Object>();
        for (Object k : p.keySet()) {
            result.put(k.toString(), p.get(k));
        }
        return result;
    }
}

Related

1. load(String filename)
2. load(String fileName)
3. load(String path)
4. load(String propertiesString)
5. load(String resource)
6. load(String[] paths, String fileName)
7. loadAccessTokenProperties( InputStream inputStream)
8. loadApiProperties(InputStream inputStream)
9. loadBuildProperties(File projectRootDir)