org.pentaho.di.shared

Class SharedObjects

java.lang.Object

org.pentaho.di.shared.SharedObjects

public class SharedObjects
extends Object

Based on a piece of XML, this factory will give back a list of objects. In other words, it does XML de-serialisation

Author:

Matt

Constructor Summary

Constructors

Constructor and Description
SharedObjects()
SharedObjects(String sharedObjectsFile)

Method Summary

Modifier and Type	Method and Description
static String	createFilename(String sharedObjectsFile)
String	getFilename()
Map<org.pentaho.di.shared.SharedObjects.SharedEntry,SharedObjectInterface>	getObjectsMap()
DatabaseMeta	getSharedDatabase(String name) Get the shared database with the specified name
SharedObjectInterface	getSharedObject(Class<SharedObjectInterface> clazz, String objectName) Return the shared object with the given class and name
SharedObjectInterface	getSharedObject(String className, String objectName) Return the shared object with the given class name and object name
protected OutputStream	initOutputStreamUsingKettleVFS(org.apache.commons.vfs2.FileObject fileObject)
void	removeObject(SharedObjectInterface sharedObject) Remove the sharedObject from the object map.
protected void	restoreFileFromBackup(String backupFileName) Call copyFile(String, String) method to restore file from backup
void	saveToFile()
void	setFilename(String filename)
void	setObjectsMap(Map<org.pentaho.di.shared.SharedObjects.SharedEntry,SharedObjectInterface> objects)
void	storeObject(SharedObjectInterface sharedObject) Store the sharedObject in the object map.
String	toString()
protected void	writeToFile(org.apache.commons.vfs2.FileObject fileObject, String backupFileName) Write sharedObjects to file.

Methods inherited from class java.lang.Object

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

Constructor Detail

SharedObjects

public SharedObjects(String sharedObjectsFile)
              throws KettleXMLException

Throws:

KettleXMLException

SharedObjects

public SharedObjects()
              throws KettleXMLException

Throws:

KettleXMLException

Method Detail

createFilename

public static final String createFilename(String sharedObjectsFile)

getObjectsMap

public Map<org.pentaho.di.shared.SharedObjects.SharedEntry,SharedObjectInterface> getObjectsMap()

setObjectsMap

public void setObjectsMap(Map<org.pentaho.di.shared.SharedObjects.SharedEntry,SharedObjectInterface> objects)

storeObject

public void storeObject(SharedObjectInterface sharedObject)

Store the sharedObject in the object map. It is possible to have 2 different types of shared object with the same name. They will be stored separately.

Parameters:

sharedObject -

removeObject

public void removeObject(SharedObjectInterface sharedObject)

Remove the sharedObject from the object map.

Parameters:

sharedObject -

saveToFile

public void saveToFile()
                throws IOException,
                       KettleException

Throws:

IOException

KettleException

getSharedObject

public SharedObjectInterface getSharedObject(Class<SharedObjectInterface> clazz,
                                             String objectName)

Return the shared object with the given class and name

Parameters:

clazz - The class of the shared object

objectName - the name of the object

Returns:

The shared object or null if none was found.

getSharedObject

public SharedObjectInterface getSharedObject(String className,
                                             String objectName)

Return the shared object with the given class name and object name

Parameters:

className - The class name of the shared object

objectName - the name of the object

Returns:

The shared object or null if none was found.

getSharedDatabase

public DatabaseMeta getSharedDatabase(String name)

Get the shared database with the specified name

Parameters:

name - The name of the shared database

Returns:

The database or null if nothing was found.

getFilename

public String getFilename()

Returns:

the filename

setFilename

public void setFilename(String filename)

Parameters:

filename - the filename to set

writeToFile

protected void writeToFile(org.apache.commons.vfs2.FileObject fileObject,
                           String backupFileName)
                    throws IOException,
                           KettleException

Write sharedObjects to file. In case of an exception are caught save backup file instead of new one.

Parameters:

fileObject - is file for writing

backupFileName - is backup file name

Throws:

IOException

KettleException

initOutputStreamUsingKettleVFS

protected OutputStream initOutputStreamUsingKettleVFS(org.apache.commons.vfs2.FileObject fileObject)
                                               throws IOException

Throws:

IOException

restoreFileFromBackup

protected void restoreFileFromBackup(String backupFileName)
                              throws IOException,
                                     KettleFileException

Call copyFile(String, String) method to restore file from backup

Parameters:

backupFileName -

Throws:

IOException

KettleFileException

toString

public String toString()

Overrides:

toString in class Object