Java ClassLoader Load getAsProperties(final String name)

Description

Load properties from the given name.

License

BSD License

Parameter

Parameter	Description
name	- properties name

Exception

Parameter	Description
IOException	- IOException in case of failure

Return

Properties

Declaration

public static Properties getAsProperties(final String name) throws IOException 

Method Source Code

//package com.java2s;
/*//from  ww  w.  java2  s  . co  m
 * $Id$
 * $URL$
 * 
 * =============================================================================
 * Ikasan Enterprise Integration Platform
 * 
 * Distributed under the Modified BSD License.
 * Copyright notice: The copyright for this software and a full listing 
 * of individual contributors are as shown in the packaged copyright.txt 
 * file. 
 * 
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 *  - Redistributions of source code must retain the above copyright notice, 
 *    this list of conditions and the following disclaimer.
 *
 *  - Redistributions in binary form must reproduce the above copyright notice, 
 *    this list of conditions and the following disclaimer in the documentation 
 *    and/or other materials provided with the distribution.
 *
 *  - Neither the name of the ORGANIZATION nor the names of its contributors may
 *    be used to endorse or promote products derived from this software without 
 *    specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * =============================================================================
 */

import java.io.FileInputStream;
import java.io.IOException;

import java.net.URL;
import java.util.InvalidPropertiesFormatException;
import java.util.Properties;

public class Main {
    /**
     * Load properties from the given name. Try loading these properties in the following order, (1) load as XML
     * properties from the classpath; (2) load as NVP properties from the classpath; (3) load as XML properties from the
     * file system; (4) load as NVP properties from the file system; If all above fail then throw IOException.
     * 
     * @param name - properties name
     * @return Properties
     * @throws IOException - IOException in case of failure
     */
    public static Properties getAsProperties(final String name) throws IOException {
        Properties props = new Properties();
        //
        // try loading via URL from the CLASSPATH
        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
        URL url = classLoader.getResource(name);
        if (url != null) {
            //
            // try XML properties, failing that try standard NVP.
            try {
                props.loadFromXML(url.openStream());
            } catch (InvalidPropertiesFormatException e) {
                // NOTE: we have to re-open the input stream on exception
                props.load(url.openStream());
            }
        } else
        // nothing on the CLASSPATH, lets try the file system
        {
            //
            // try XML properties, failing that try standard NVP.
            try {
                props.loadFromXML(new FileInputStream(name));
            } catch (InvalidPropertiesFormatException e) {
                // NOTE: we have to re-open the input stream on exception
                props.load(new FileInputStream(name));
            }
        }
        return props;
    }
}

Related

1. get(final String key, final String filename)
2. getAbsoluteBasePath()
3. getAbsolutePath(String file)
4. getAbsolutePathEssenceDesc(String file)
5. getAllArquillianLibs()
6. getBaseDir()
7. getBytes(File file)
8. getConfigFileInputStream(String configFilePath)
9. getContentFromFile(String fileName, Object context)