org.kuali.rice.kew.plugin
Class ZipFilePluginLoader

java.lang.Object
  org.kuali.rice.kew.plugin.BasePluginLoader
      org.kuali.rice.kew.plugin.ZipFilePluginLoader

All Implemented Interfaces:

Modifiable, PluginLoader

public class ZipFilePluginLoader
extends BasePluginLoader

Loads a plugin from a zip file on the file system.

Author:

Kuali Rice Team (rice.collab@kuali.org)

Field Summary

Fields inherited from class org.kuali.rice.kew.plugin.BasePluginLoader

logPrefix, parentClassLoader, parentConfig, pluginConfigPath, sharedPluginDirectory, simplePluginName

Constructor Summary

ZipFilePluginLoader(File pluginZipFile, File sharedPluginDirectory, ClassLoader parentClassLoader, Config parentConfig)

Method Summary

protected PluginClassLoader	createPluginClassLoader() Template method that subclasses should implement to supply an appropriate plugin ClassLoader
protected File	determineExtractionDirectory(String pluginName, File pluginZipFile)
protected void	extractPluginFiles() Extracts the plugin files if necessary.
protected URL	getPluginConfigURL() Template method that subclasses should implement to supply an appropriate URL to the plugin's configuration
protected boolean	isExtractNeeded() An extract is required if the plugin has been modified or the last modified date of the zip file is later than the last modified date of the extraction directory.
boolean	isLoadFailed()
boolean	isModified()
boolean	isRemoved() Returns true if the Plugin loaded by this loader has been removed (for example, it was deleted from the file system which should result in the plugin being undeployed).
protected boolean	isZipFileStillBeingModified()
Plugin	load() Loads and creates the Plugin.
protected void	updateLastModified()

Methods inherited from class org.kuali.rice.kew.plugin.BasePluginLoader

configureExtraClasspath, getLogPrefix, getPluginName, getPluginName, getSimplePluginName, installPluginListeners, installResourceLoader, loadPluginConfig, loadWithinContextClassLoader, setPluginConfigPath

Methods inherited from class java.lang.Object

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

Constructor Detail

ZipFilePluginLoader

public ZipFilePluginLoader(File pluginZipFile,
                           File sharedPluginDirectory,
                           ClassLoader parentClassLoader,
                           Config parentConfig)

Method Detail

isModified

public boolean isModified()

isZipFileStillBeingModified

protected boolean isZipFileStillBeingModified()

isRemoved

public boolean isRemoved()

Description copied from interface: PluginLoader

Returns true if the Plugin loaded by this loader has been removed (for example, it was deleted from the file system which should result in the plugin being undeployed).

Specified by:

isRemoved in interface PluginLoader

Overrides:

isRemoved in class BasePluginLoader

load

public Plugin load()
            throws Exception

Description copied from class: BasePluginLoader

Loads and creates the Plugin.

Specified by:

load in interface PluginLoader

Overrides:

load in class BasePluginLoader

Throws:

Exception

determineExtractionDirectory

protected File determineExtractionDirectory(String pluginName,
                                            File pluginZipFile)

extractPluginFiles

protected void extractPluginFiles()
                           throws Exception

Extracts the plugin files if necessary.

Throws:

Exception

isLoadFailed

public boolean isLoadFailed()

Returns:

the loadFailed

isExtractNeeded

protected boolean isExtractNeeded()

An extract is required if the plugin has been modified or the last modified date of the zip file is later than the last modified date of the extraction directory.

updateLastModified

protected void updateLastModified()

createPluginClassLoader

protected PluginClassLoader createPluginClassLoader()
                                             throws MalformedURLException

Description copied from class: BasePluginLoader

Template method that subclasses should implement to supply an appropriate plugin ClassLoader

Specified by:

createPluginClassLoader in class BasePluginLoader

Returns:

an appropriate PluginClassLoader

Throws:

MalformedURLException

getPluginConfigURL

protected URL getPluginConfigURL()
                          throws PluginException,
                                 MalformedURLException

Description copied from class: BasePluginLoader

Template method that subclasses should implement to supply an appropriate URL to the plugin's configuration

Specified by:

getPluginConfigURL in class BasePluginLoader

Returns:

an appropriate URL to the plugin's configuration

Throws:

PluginException

MalformedURLException