Package weka.knowledgeflow

Class JSONFlowLoader

java.lang.Object

weka.knowledgeflow.JSONFlowLoader

All Implemented Interfaces:

FlowLoader

public class JSONFlowLoader
extends Object
implements FlowLoader

Flow loader that wraps the routines in JSONFlowUtils

Version:

$Revision: $

Author:

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

Field Summary

Fields

Modifier and Type	Field	Description
static final String	EXTENSION	The file exetension for JSON-based flows

Constructor Summary

Constructors

Constructor	Description
JSONFlowLoader()

Method Summary

Modifier and Type	Method	Description
String	getFlowFileExtension()	Get the file extension handled by this loader
String	getFlowFileExtensionDescription()	Get the description of the file format handled by this loader
Flow	readFlow(File flowFile)	Read the flow from the supplied file
Flow	readFlow(InputStream is)	Read the flow from the supplied input stream
Flow	readFlow(Reader r)	Read the flow from the supplied reader
void	setLog(Logger log)	Set a log to use

Methods inherited from class java.lang.Object

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

Field Details

EXTENSION

public static final String EXTENSION

The file exetension for JSON-based flows

See Also:

• Constant Field Values

Constructor Details

JSONFlowLoader

public JSONFlowLoader()

Method Details

setLog

public void setLog(Logger log)

Set a log to use

Specified by:

setLog in interface FlowLoader

Parameters:

log - log to use

getFlowFileExtension

public String getFlowFileExtension()

Get the file extension handled by this loader

Specified by:

getFlowFileExtension in interface FlowLoader

Returns:

the file extension

getFlowFileExtensionDescription

public String getFlowFileExtensionDescription()

Get the description of the file format handled by this loader

Specified by:

getFlowFileExtensionDescription in interface FlowLoader

Returns:

the description of the file format handled

readFlow

public Flow readFlow(File flowFile)
              throws WekaException

Read the flow from the supplied file

Specified by:

readFlow in interface FlowLoader

Parameters:

flowFile - the file to load from

Returns:

the Flow read

Throws:

WekaException - if a problem occurs

readFlow

public Flow readFlow(InputStream is)
              throws WekaException

Read the flow from the supplied input stream

Specified by:

readFlow in interface FlowLoader

Parameters:

is - the input stream to load from

Returns:

the Flow read

Throws:

WekaException

readFlow

public Flow readFlow(Reader r)
              throws WekaException

Read the flow from the supplied reader

Specified by:

readFlow in interface FlowLoader

Parameters:

r - the reader to load from

Returns:

the Flow read

Throws:

WekaException - if a problem occurs