weka.gui.beans

Class FlowRunner

java.lang.Object

weka.gui.beans.FlowRunner

All Implemented Interfaces:

RevisionHandler

public class FlowRunner
extends java.lang.Object
implements RevisionHandler

Small utility class for executing KnowledgeFlow flows outside of the KnowledgeFlow application

Version:

$Revision: 7059 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}org)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FlowRunner.SimpleLogger

Constructor Summary

Constructors

Constructor and Description
FlowRunner() Constructor

Method Summary

Modifier and Type	Method and Description
Environment	getEnvironment() Get the environment variables that are in use.
java.util.Vector	getFlows() Get the vector holding the flow(s)
java.lang.String	getRevision() Returns the revision string.
boolean	getStartSequentially() Gets whether Startable beans will be launched sequentially or all in parallel.
void	load(java.lang.String fileName) Load a serialized KnowledgeFlow (either binary or xml)
void	loadBinary(java.lang.String fileName) Load a binary serialized KnowledgeFlow
void	loadXML(java.lang.String fileName) Load an XML serialized KnowledgeFlow
static void	main(java.lang.String[] args) Main method for testing this class.
void	run() Launch all loaded KnowledgeFlow
void	setEnvironment(Environment env) Set the environment variables to use.
void	setFlows(java.util.Vector beans) Set the vector holding the flows(s) to run
void	setLog(Logger log)
void	setStartSequentially(boolean s) Set whether to launch Startable beans one after the other or all in parallel.
void	stopAllFlows()
void	waitUntilFinished() Waits until all flows have finished executing before returning

Methods inherited from class java.lang.Object

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

Constructor Detail

FlowRunner

public FlowRunner()

Constructor

Method Detail

setLog

public void setLog(Logger log)

stopAllFlows

public void stopAllFlows()

waitUntilFinished

public void waitUntilFinished()

Waits until all flows have finished executing before returning

load

public void load(java.lang.String fileName)
          throws java.lang.Exception

Load a serialized KnowledgeFlow (either binary or xml)

Parameters:

fileName - the name of the file to load from

Throws:

java.lang.Exception - if something goes wrong

loadBinary

public void loadBinary(java.lang.String fileName)
                throws java.lang.Exception

Load a binary serialized KnowledgeFlow

Parameters:

fileName - the name of the file to load from

Throws:

java.lang.Exception - if something goes wrong

loadXML

public void loadXML(java.lang.String fileName)
             throws java.lang.Exception

Load an XML serialized KnowledgeFlow

Parameters:

fileName - the name of the file to load from

Throws:

java.lang.Exception - if something goes wrong

getFlows

public java.util.Vector getFlows()

Get the vector holding the flow(s)

Returns:

the Vector holding the flow(s)

setFlows

public void setFlows(java.util.Vector beans)

Set the vector holding the flows(s) to run

Parameters:

beans - the Vector holding the flows to run

setEnvironment

public void setEnvironment(Environment env)

Set the environment variables to use. NOTE: this needs to be called BEFORE a load method is invoked to ensure that the ${Internal.knowledgeflow.directory} variable get set in the supplied Environment object.

Parameters:

env - the environment variables to use.

getEnvironment

public Environment getEnvironment()

Get the environment variables that are in use.

Returns:

the environment variables that are in ues.

setStartSequentially

public void setStartSequentially(boolean s)

Set whether to launch Startable beans one after the other or all in parallel.

Parameters:

s - true if Startable beans are to be launched sequentially

getStartSequentially

public boolean getStartSequentially()

Gets whether Startable beans will be launched sequentially or all in parallel.

Returns:

true if Startable beans will be launched sequentially

run

public void run()
         throws java.lang.Exception

Launch all loaded KnowledgeFlow

Throws:

java.lang.Exception - if something goes wrong during execution

main

public static void main(java.lang.String[] args)

Main method for testing this class.

Usage:

Usage:\n\nFlowRunner 

Parameters:

args - command line arguments

getRevision

public java.lang.String getRevision()

Description copied from interface: RevisionHandler

Returns the revision string.

Specified by:

getRevision in interface RevisionHandler

Returns:

the revision