Class ReloadingMultiFileConfigurationBuilder<T extends FileBasedConfiguration>
java.lang.Object
org.apache.commons.configuration2.builder.BasicConfigurationBuilder<T>
org.apache.commons.configuration2.builder.combined.MultiFileConfigurationBuilder<T>
org.apache.commons.configuration2.builder.combined.ReloadingMultiFileConfigurationBuilder<T>
- Type Parameters:
T
- the concrete type ofConfiguration
objects created by this builder
- All Implemented Interfaces:
ConfigurationBuilder<T>
,EventSource
,ReloadingControllerSupport
public class ReloadingMultiFileConfigurationBuilder<T extends FileBasedConfiguration>
extends MultiFileConfigurationBuilder<T>
implements ReloadingControllerSupport
A specialized MultiFileConfigurationBuilder
implementation which adds support for reloading.
This class - as its super class - allows operating on multiple configuration files whose file names are determined
using a file name pattern and a ConfigurationInterpolator
object. It provides the following additional
features:
- Configuration builder for managed configurations have reloading support. So reloading is possible for all configuration sources loaded by this builder instance.
- A
ReloadingController
is provided which can be used to trigger reload checks on all managed configurations.
Although this builder manages an arbitrary number of child configurations, to clients only a single configuration is visible - the one selected by the evaluation of the file name pattern. Builder reset notifications triggered by the reloading mechanism do not really take this fact into account; they are not limited to the currently selected child configuration, but occur for each of the managed configuration.
- Since:
- 2.0
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Constructor Summary
ConstructorDescriptionReloadingMultiFileConfigurationBuilder
(Class<T> resCls) Creates a new instance ofReloadingMultiFileConfigurationBuilder
without setting initialization parameters.Creates a new instance ofReloadingMultiFileConfigurationBuilder
and sets initialization parameters.ReloadingMultiFileConfigurationBuilder
(Class<T> resCls, Map<String, Object> params, boolean allowFailOnInit) Creates a new instance ofReloadingMultiFileConfigurationBuilder
and sets initialization parameters and a flag whether initialization failures should be ignored. -
Method Summary
Modifier and TypeMethodDescriptionprotected FileBasedConfigurationBuilder<T>
createManagedBuilder
(String fileName, Map<String, Object> params) Creates a builder for a managed configuration.Gets theReloadingController
associated with this object.Methods inherited from class org.apache.commons.configuration2.builder.combined.MultiFileConfigurationBuilder
addEventListener, configure, constructFileName, createInitializedManagedBuilder, createInterpolator, getConfiguration, getInterpolator, getManagedBuilder, getManagedBuilders, removeEventListener, resetParameters
Methods inherited from class org.apache.commons.configuration2.builder.BasicConfigurationBuilder
addParameters, connectToReloadingController, copyEventListeners, copyEventListeners, createResult, createResultDeclaration, createResultInstance, fetchBeanHelper, fireBuilderEvent, getParameters, getResultClass, getResultDeclaration, initResultInstance, installEventListener, isAllowFailOnInit, reset, resetResult, setParameters
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Constructor Details
-
ReloadingMultiFileConfigurationBuilder
Creates a new instance ofReloadingMultiFileConfigurationBuilder
without setting initialization parameters.- Parameters:
resCls
- the result configuration class- Throws:
IllegalArgumentException
- if the result class is null
-
ReloadingMultiFileConfigurationBuilder
Creates a new instance ofReloadingMultiFileConfigurationBuilder
and sets initialization parameters.- Parameters:
resCls
- the result configuration classparams
- a map with initialization parameters- Throws:
IllegalArgumentException
- if the result class is null
-
ReloadingMultiFileConfigurationBuilder
public ReloadingMultiFileConfigurationBuilder(Class<T> resCls, Map<String, Object> params, boolean allowFailOnInit) Creates a new instance ofReloadingMultiFileConfigurationBuilder
and sets initialization parameters and a flag whether initialization failures should be ignored.- Parameters:
resCls
- the result configuration classparams
- a map with initialization parametersallowFailOnInit
- a flag whether initialization errors should be ignored- Throws:
IllegalArgumentException
- if the result class is null
-
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Method Details
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createManagedBuilder
protected FileBasedConfigurationBuilder<T> createManagedBuilder(String fileName, Map<String, Object> params) throws ConfigurationExceptionCreates a builder for a managed configuration. This method is called whenever a configuration for a file name is requested which has not yet been loaded. The passed in map with parameters is populated from this builder's configuration (i.e. the basic parameters plus the optional parameters for managed builders). This base implementation creates a standard builder for file-based configurations. Derived classes may override it to create special purpose builders. This implementation returns a file-based configuration builder with reloading support.- Overrides:
createManagedBuilder
in classMultiFileConfigurationBuilder<T extends FileBasedConfiguration>
- Parameters:
fileName
- the name of the file to be loadedparams
- a map with initialization parameters for the new builder- Returns:
- the newly created builder instance
- Throws:
ConfigurationException
- if an error occurs
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getReloadingController
Gets theReloadingController
associated with this object. This implementation returns a specialReloadingController
that delegates to the reloading controllers of the managed builders created so far.- Specified by:
getReloadingController
in interfaceReloadingControllerSupport
- Returns:
- the associated
ReloadingController
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