com.alibaba.dubbo.common.utils
Class ConfigUtils

java.lang.Object
  com.alibaba.dubbo.common.utils.ConfigUtils

public class ConfigUtils
extends Object

Author:

ding.lid, william.liangf

Method Summary

static void	addProperties(Properties properties)
static int	getPid()
static Properties	getProperties()
static String	getProperty(String key)
static String	getProperty(String key, String defaultValue)
static String	getSystemProperty(String key) 系统环境变量 -> java命令参数-D
static boolean	isDefault(String value)
static boolean	isEmpty(String value)
static boolean	isNotEmpty(String value)
static Properties	loadProperties(String fileName)
static Properties	loadProperties(String fileName, boolean allowMultiFile)
static Properties	loadProperties(String fileName, boolean allowMultiFile, boolean optional) Load properties file to Properties from class path.
static List<String>	mergeValues(Class<?> type, String cfg, List<String> def) 扩展点列表中插入缺省扩展点。
static String	replaceProperty(String expression, Map<String,String> params)
static void	setProperties(Properties properties)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isNotEmpty

public static boolean isNotEmpty(String value)

isEmpty

public static boolean isEmpty(String value)

isDefault

public static boolean isDefault(String value)

mergeValues

public static List<String> mergeValues(Class<?> type,
                                       String cfg,
                                       List<String> def)

扩展点列表中插入缺省扩展点。

扩展点列表支持

• 特殊值default，表示缺省扩展点插入的位置
• 特殊符号-，表示剔除。 -foo1，剔除添加缺省扩展点foo1。-default，剔除添加所有缺省扩展点。

Parameters:

type - 扩展点类型

cfg - 扩展点名列表

def - 缺省的扩展点的列表

Returns:

完成缺省的扩展点列表插入后的列表

replaceProperty

public static String replaceProperty(String expression,
                                     Map<String,String> params)

getProperties

public static Properties getProperties()

setProperties

public static void setProperties(Properties properties)

addProperties

public static void addProperties(Properties properties)

getProperty

public static String getProperty(String key)

getProperty

public static String getProperty(String key,
                                 String defaultValue)

getSystemProperty

public static String getSystemProperty(String key)

系统环境变量 -> java命令参数-D

Parameters:

key -

Returns:

loadProperties

public static Properties loadProperties(String fileName)

loadProperties

public static Properties loadProperties(String fileName,
                                        boolean allowMultiFile)

loadProperties

public static Properties loadProperties(String fileName,
                                        boolean allowMultiFile,
                                        boolean optional)

Load properties file to Properties from class path.

Parameters:

fileName - properties file name. for example: dubbo.properties, METE-INF/conf/foo.properties

allowMultiFile - if false, throw IllegalStateException when found multi file on the class path.

optional - is optional. if false, log warn when properties config file not found!s

Returns:

loaded Properties content.

• return empty Properties if no file found.
• merge multi properties file if found multi file

Throws:

IllegalStateException - not allow multi-file, but multi-file exsit on class path.

getPid

public static int getPid()