Package org.opennms.netmgt.config.dao.common.impl

Class FileSystemSaveableConfigContainer<T>

java.lang.Object

org.opennms.netmgt.config.dao.common.impl.FileSystemSaveableConfigContainer<T>

All Implemented Interfaces:

ReloadableConfigContainer<T>, SaveableConfigContainer<T>

public class FileSystemSaveableConfigContainer<T>
extends java.lang.Object
implements SaveableConfigContainer<T>

Contains a JAXB annotated entity that is backed by a file on disk. The file is held in a AbstractWritableJaxbConfigDao and is subject to the reloading strategy of that class.

Constructor Summary

Constructors

Constructor	Description
FileSystemSaveableConfigContainer(java.lang.Class<T> clazz, java.lang.String configName, java.util.Collection<java.util.function.Consumer<T>> onConfigChangeCallbacks, java.io.File configFile)

Method Summary

Modifier and Type	Method	Description
T	getConfig()
java.util.concurrent.locks.Lock	getReadLock()
java.util.concurrent.locks.Lock	getWriteLock()
void	reload()	Instruct the container to reload the in-memory configuration from the backing configuration.
void	saveConfig()	Overwrite the backing configuration with the in-memory copy of the configuration.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileSystemSaveableConfigContainer

public FileSystemSaveableConfigContainer(java.lang.Class<T> clazz,
                                         java.lang.String configName,
                                         java.util.Collection<java.util.function.Consumer<T>> onConfigChangeCallbacks,
                                         java.io.File configFile)

Method Detail

saveConfig

public void saveConfig()

Description copied from interface: SaveableConfigContainer

Overwrite the backing configuration with the in-memory copy of the configuration.

Specified by:

saveConfig in interface SaveableConfigContainer<T>

reload

public void reload()

Description copied from interface: ReloadableConfigContainer

Instruct the container to reload the in-memory configuration from the backing configuration. This may block if the backing configuration is not immediately available.

Specified by:

reload in interface ReloadableConfigContainer<T>

getConfig

public T getConfig()

Specified by:

getConfig in interface ReloadableConfigContainer<T>

Returns:

the in-memory copy of the configuration which may be reloaded as part of this request depending on the implementation

getReadLock

public java.util.concurrent.locks.Lock getReadLock()

Specified by:

getReadLock in interface SaveableConfigContainer<T>

getWriteLock

public java.util.concurrent.locks.Lock getWriteLock()

Specified by:

getWriteLock in interface SaveableConfigContainer<T>