java.lang.Object
- org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilderFactory
- - org.apache.logging.log4j.core.config.ConfigurationFactory

Direct Known Subclasses:

JsonConfigurationFactory, Log4j1ConfigurationFactory, PropertiesConfigurationFactory, PropertiesConfigurationFactory, XmlConfigurationFactory, XmlConfigurationFactory
```
public abstract class ConfigurationFactory
extends ConfigurationBuilderFactory
```
Factory class for parsed Configuration objects from a configuration file. ConfigurationFactory allows the configuration implementation to be dynamically chosen in 1 of 3 ways:
1. A system property named "log4j.configurationFactory" can be set with the name of the ConfigurationFactory to be used.
2. setConfigurationFactory(ConfigurationFactory) can be called with the instance of the ConfigurationFactory to be used. This must be called before any other calls to Log4j.
3. A ConfigurationFactory implementation can be added to the classpath and configured as a plugin in the ConfigurationFactory category. The Order annotation should be used to configure the factory to be the first one inspected. See XmlConfigurationFactory for an example.
If the ConfigurationFactory that was added returns null on a call to getConfiguration then any other ConfigurationFactories found as plugins will be called in their respective order. DefaultConfiguration is always called last if no configuration has been returned.

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`AUTHORIZATION_PROVIDER`
`static String`	`CATEGORY`	Plugin category used to inject a ConfigurationFactory `Plugin` class.
`static String`	`CONFIGURATION_FACTORY_PROPERTY`	Allows the ConfigurationFactory class to be specified as a system property.
`static String`	`CONFIGURATION_FILE_PROPERTY`	Allows the location of the configuration file to be specified as a system property.
`protected static String`	`DEFAULT_PREFIX`	File name prefix for standard configurations.
`static String`	`LOG4J1_CONFIGURATION_FILE_PROPERTY`
`static String`	`LOG4J1_EXPERIMENTAL`
`protected static String`	`LOG4J1_VERSION`
`protected static String`	`LOG4J2_VERSION`
`protected static Logger`	`LOGGER`	Allows subclasses access to the status logger without creating another instance.
`protected StrSubstitutor`	`substitutor`
`protected static String`	`TEST_PREFIX`	File name prefix for test configurations.

Constructor Summary

Constructors
Constructor Description

ConfigurationFactory()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static AuthorizationProvider`	`authorizationProvider(PropertiesUtil props)`
`static AuthorizationProvider`	`getAuthorizationProvider()`
`Configuration`	`getConfiguration(LoggerContext loggerContext, String name, URI configLocation)`	Returns the Configuration.
`Configuration`	`getConfiguration(LoggerContext loggerContext, String name, URI configLocation, ClassLoader loader)`	Returns the Configuration obtained using a given ClassLoader.
`abstract Configuration`	`getConfiguration(LoggerContext loggerContext, ConfigurationSource source)`
`protected String`	`getDefaultPrefix()`
`protected ConfigurationSource`	`getInputFromString(String config, ClassLoader loader)`	Loads the configuration from the location represented by the String.
`static ConfigurationFactory`	`getInstance()`	Returns the ConfigurationFactory.
`protected abstract String[]`	`getSupportedTypes()`
`protected String`	`getTestPrefix()`
`protected String`	`getVersion()`
`protected boolean`	`isActive()`
`static void`	`removeConfigurationFactory(ConfigurationFactory factory)`	Removes the ConfigurationFactory.
`static void`	`resetConfigurationFactory()`	Resets the ConfigurationFactory to the default.
`static void`	`setConfigurationFactory(ConfigurationFactory factory)`	Sets the configuration factory.

Methods inherited from class org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilderFactory
newConfigurationBuilder, newConfigurationBuilder

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - CONFIGURATION_FACTORY_PROPERTY
```
public static final String CONFIGURATION_FACTORY_PROPERTY
```
    Allows the ConfigurationFactory class to be specified as a system property.
    
    See Also:
    
    Constant Field Values
  - CONFIGURATION_FILE_PROPERTY
```
public static final String CONFIGURATION_FILE_PROPERTY
```
    Allows the location of the configuration file to be specified as a system property.
    
    See Also:
    
    Constant Field Values
  - LOG4J1_CONFIGURATION_FILE_PROPERTY
```
public static final String LOG4J1_CONFIGURATION_FILE_PROPERTY
```
    See Also:
    
    Constant Field Values
  - LOG4J1_EXPERIMENTAL
```
public static final String LOG4J1_EXPERIMENTAL
```
    See Also:
    
    Constant Field Values
  - AUTHORIZATION_PROVIDER
```
public static final String AUTHORIZATION_PROVIDER
```
    See Also:
    
    Constant Field Values
  - CATEGORY
```
public static final String CATEGORY
```
    Plugin category used to inject a ConfigurationFactory Plugin class.
    
    Since:
    
    2.1
    
    See Also:
    
    Constant Field Values
  - LOGGER
```
protected static final Logger LOGGER
```
    Allows subclasses access to the status logger without creating another instance.
  - TEST_PREFIX
```
protected static final String TEST_PREFIX
```
    File name prefix for test configurations.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_PREFIX
```
protected static final String DEFAULT_PREFIX
```
    File name prefix for standard configurations.
    
    See Also:
    
    Constant Field Values
  - LOG4J1_VERSION
```
protected static final String LOG4J1_VERSION
```
    See Also:
    
    Constant Field Values
  - LOG4J2_VERSION
```
protected static final String LOG4J2_VERSION
```
    See Also:
    
    Constant Field Values
  - substitutor
```
protected final StrSubstitutor substitutor
```
- Constructor Detail
  - ConfigurationFactory
```
public ConfigurationFactory()
```
- Method Detail
  - getInstance
```
public static ConfigurationFactory getInstance()
```
    Returns the ConfigurationFactory.
    
    Returns:
    
    the ConfigurationFactory.
  - authorizationProvider
```
public static AuthorizationProvider authorizationProvider(PropertiesUtil props)
```
  - getAuthorizationProvider
```
public static AuthorizationProvider getAuthorizationProvider()
```
  - setConfigurationFactory
```
public static void setConfigurationFactory(ConfigurationFactory factory)
```
    Sets the configuration factory. This method is not intended for general use and may not be thread safe.
    
    Parameters:
    
    factory - the ConfigurationFactory.
  - resetConfigurationFactory
```
public static void resetConfigurationFactory()
```
    Resets the ConfigurationFactory to the default. This method is not intended for general use and may not be thread safe.
  - removeConfigurationFactory
```
public static void removeConfigurationFactory(ConfigurationFactory factory)
```
    Removes the ConfigurationFactory. This method is not intended for general use and may not be thread safe.
    
    Parameters:
    
    factory - The factory to remove.
  - getSupportedTypes
```
protected abstract String[] getSupportedTypes()
```
  - getTestPrefix
```
protected String getTestPrefix()
```
  - getDefaultPrefix
```
protected String getDefaultPrefix()
```
  - getVersion
```
protected String getVersion()
```
  - isActive
```
protected boolean isActive()
```
  - getConfiguration
```
public abstract Configuration getConfiguration(LoggerContext loggerContext,
                                               ConfigurationSource source)
```
  - getConfiguration
```
public Configuration getConfiguration(LoggerContext loggerContext,
                                      String name,
                                      URI configLocation)
```
    Returns the Configuration.
    
    Parameters:
    
    loggerContext - The logger context
    
    name - The configuration name.
    
    configLocation - The configuration location.
    
    Returns:
    
    The Configuration.
  - getConfiguration
```
public Configuration getConfiguration(LoggerContext loggerContext,
                                      String name,
                                      URI configLocation,
                                      ClassLoader loader)
```
    Returns the Configuration obtained using a given ClassLoader.
    
    Parameters:
    
    loggerContext - The logger context
    
    name - The configuration name.
    
    configLocation - A URI representing the location of the configuration.
    
    loader - The default ClassLoader to use. If this is null, then the default ClassLoader will be used.
    
    Returns:
    
    The Configuration.
  - getInputFromString
```
protected ConfigurationSource getInputFromString(String config,
                                                 ClassLoader loader)
```
    Loads the configuration from the location represented by the String.
    
    Parameters:
    
    config - The configuration location.
    
    loader - The default ClassLoader to use.
    
    Returns:
    
    The InputSource to use to read the configuration.

Class ConfigurationFactory

Field Summary

Constructor Summary

Method Summary

Methods inherited from class org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilderFactory

Methods inherited from class java.lang.Object

Field Detail

CONFIGURATION_FACTORY_PROPERTY

CONFIGURATION_FILE_PROPERTY

LOG4J1_CONFIGURATION_FILE_PROPERTY

LOG4J1_EXPERIMENTAL

AUTHORIZATION_PROVIDER

CATEGORY

LOGGER

TEST_PREFIX

DEFAULT_PREFIX

LOG4J1_VERSION

LOG4J2_VERSION

substitutor

Constructor Detail

ConfigurationFactory

Method Detail

getInstance

authorizationProvider

getAuthorizationProvider

setConfigurationFactory

resetConfigurationFactory

removeConfigurationFactory

getSupportedTypes

getTestPrefix

getDefaultPrefix

getVersion

isActive

getConfiguration

getConfiguration

getConfiguration

getInputFromString