package com.opslab.util;

import org.apache.log4j.Logger;

import java.io.File;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.util.List;

import java.util.Properties;

/**

* 配置相关的一些辅助类

*/

public class ConfigUtil {

private static Logger logger = Logger.getLogger(ConfigUtil.class);

/**

* 获取配置文件资源

*

* @return

*/

public static URL findAsResource(final String path) {

URL url = null;

ClassLoader contextClassLoader = ClassUtil.getContextClassLoader();

if (contextClassLoader != null) {

url = contextClassLoader.getResource(path);

}

if (url != null)

return url;

url = ConfigUtil.class.getClassLoader().getResource(path);

if (url != null)

return url;

url = ClassLoader.getSystemClassLoader().getResource(path);

return url;

}

/**

* @param path

* @return

*/

public static String resourcePath(final String path) {

URL asResource = findAsResource(path);

return new File(asResource.getFile()).getPath();

}

private static InputStream getConfigStream(final String path) throws RuntimeException {

try {

URL url = new URL(path);

return url.openStream();

} catch (IOException e) {

throw new RuntimeException("Unable to open config file: " + path);

}

}

/**

* 获取资源流

*

* @param path

* @return

* @throws IOException

*/

private static InputStream resourceStream(final String path) throws IOException {

URL asResource = findAsResource(path);

return asResource.openStream();

}

/**

* 获取资源属性

*

* @param path

* @return

* @throws IOException

*/

public static Properties getConfigProperties(String path) throws IOException {

Properties properties = new Properties();

properties.load(resourceStream(path));

return properties;

}

}