PropertiesUtils.java

/*
 * ApplicationInsights-Java
 * Copyright (c) Microsoft Corporation
 * All rights reserved.
 *
 * MIT License
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the ""Software""), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 * THE SOFTWARE IS PROVIDED *AS IS*, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 * FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package com.microsoft.applicationinsights.test.framework.utils;

import java.io.*;
import java.util.Properties;

/**
 * Created by amnonsh on 5/28/2015.
 */
public class PropertiesUtils {

    public static Properties loadPropertiesFromResource(String resourceName) throws IOException
    {
        ClassLoader classLoader = PropertiesUtils.class.getClassLoader();
        InputStream inputStream = classLoader.getResourceAsStream(resourceName);
        return loadProperties(inputStream);
    }

    public static Properties loadPropertiesFromFile(String filePath) throws IOException
    {
        File configFile = new File(filePath);
        if (!configFile.exists()) {
            throw new FileNotFoundException("Configuration file \"" + filePath + "\" could not be found");
        }
        System.out.println("Configuration file located in " + filePath);

        InputStream inputStream = new FileInputStream(filePath);
        return loadProperties(inputStream);
    }

    private static Properties loadProperties(InputStream inputStream) throws IOException {
        Properties props = new Properties();

        if (inputStream != null)
        {
            try {
                props.load(inputStream);
            } finally {
                inputStream.close();
            }
        }

        return props;
    }
}