org.apache.dubbo.common.utils

Class ConfigUtils

java.lang.Object

org.apache.dubbo.common.utils.ConfigUtils

public class ConfigUtils
extends Object

Method Summary

Modifier and Type	Method and Description
static int	getPid()
static Properties	getProperties(Set<ClassLoader> classLoaders) Get dubbo properties.
static String	getSystemProperty(String key) System environment -> System properties
static boolean	isDefault(String value)
static boolean	isEmpty(String value)
static boolean	isNotEmpty(String value)
static String	loadMigrationRule(Set<ClassLoader> classLoaders, String fileName)
static Properties	loadProperties(Set<ClassLoader> classLoaders, String fileName)
static Properties	loadProperties(Set<ClassLoader> classLoaders, String fileName, boolean allowMultiFile)
static Properties	loadProperties(Set<ClassLoader> classLoaders, String fileName, boolean allowMultiFile, boolean optional) Load properties file to Properties from class path.
static List<String>	mergeValues(ExtensionDirector extensionDirector, Class<?> type, String cfg, List<String> def) Insert default extension into extension list.
static String	replaceProperty(String expression, Configuration configuration)
static String	replaceProperty(String expression, Map<String,String> params)

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(ExtensionDirector extensionDirector,
                                       Class<?> type,
                                       String cfg,
                                       List<String> def)

Insert default extension into extension list.

Extension list support

• Special value default, means the location for default extensions.
• Special symbol-, means remove. -foo1 will remove default extension 'foo'; -default will remove all default extensions.

Parameters:

type - Extension type

cfg - Extension name list

def - Default extension list

Returns:

result extension list

replaceProperty

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

replaceProperty

public static String replaceProperty(String expression,
                                     Configuration configuration)

getProperties

public static Properties getProperties(Set<ClassLoader> classLoaders)

Get dubbo properties. It is not recommended using this method to modify dubbo properties.

Returns:

getSystemProperty

public static String getSystemProperty(String key)

System environment -> System properties

Parameters:

key - key

Returns:

value

loadProperties

public static Properties loadProperties(Set<ClassLoader> classLoaders,
                                        String fileName)

loadProperties

public static Properties loadProperties(Set<ClassLoader> classLoaders,
                                        String fileName,
                                        boolean allowMultiFile)

loadProperties

public static Properties loadProperties(Set<ClassLoader> classLoaders,
                                        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 exist on class path.

loadMigrationRule

public static String loadMigrationRule(Set<ClassLoader> classLoaders,
                                       String fileName)

getPid

public static int getPid()