com.neurosys.scribble.transformers

Class ScriptTransformer

java.lang.Object

com.neurosys.scribble.transformers.ScriptTransformer

All Implemented Interfaces:

org.apache.commons.collections.Transformer

public class ScriptTransformer
extends Object
implements org.apache.commons.collections.Transformer

Reads a file or a script directly and executed it with the input as the sole parameter to the script.
If called directly, one must call init() once on the instance.

If the input is a direct input then it can use the following variables:

• contextParams - contextParams
• context - Spring Context
• input - Input to transformer

Author:

Arjun Dhar

Constructor Summary

Constructors

Constructor and Description
ScriptTransformer()
ScriptTransformer(ScriptFactory scriptFactory, Object scriptSource)

Method Summary

Modifier and Type	Method and Description
Map	getContextParams() Optional context params to inject into the scripting object (context)
String	getScriptEntryMethod() The method to execute as the entry point for the script that accepts a single or varargs param
ScriptFactory	getScriptFactory()
String	getScriptInitMethod() An optional no parameter void return method in the script that serves as an initializer
Object	getScriptObject()
Object	getScriptSource() File or Text or ScriptSource
void	init()
void	setContextParams(Map contextParams) Optional context params to inject into the scripting object (context)
void	setScriptEntryMethod(String scriptEntryMethod) The method to execute as the entry point for the script that accepts a single or varargs param
void	setScriptFactory(ScriptFactory scriptFactory)
void	setScriptInitMethod(String scriptInitMethod) An optional no parameter void return method in the script that serves as an initializer
void	setScriptObject(Object scriptObject)
void	setScriptSource(Object scriptSource) File or Text or ScriptSource
Object	transform(Object input)

Methods inherited from class java.lang.Object

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

Constructor Detail

ScriptTransformer

public ScriptTransformer()

ScriptTransformer

public ScriptTransformer(ScriptFactory scriptFactory,
                         Object scriptSource)

Method Detail

init

@PostConstruct
public void init()
                         throws IOException

Throws:

IOException

transform

public Object transform(Object input)

Specified by:

transform in interface org.apache.commons.collections.Transformer

getScriptFactory

public ScriptFactory getScriptFactory()

setScriptFactory

public void setScriptFactory(ScriptFactory scriptFactory)

getScriptSource

public Object getScriptSource()

File or Text or ScriptSource

setScriptSource

public void setScriptSource(Object scriptSource)

File or Text or ScriptSource

getContextParams

public Map getContextParams()

Optional context params to inject into the scripting object (context)

Can be null:

true

setContextParams

public void setContextParams(Map contextParams)

Optional context params to inject into the scripting object (context)

Can be null:

true

getScriptEntryMethod

public String getScriptEntryMethod()

The method to execute as the entry point for the script that accepts a single or varargs param

Default value:

execute

setScriptEntryMethod

public void setScriptEntryMethod(String scriptEntryMethod)

The method to execute as the entry point for the script that accepts a single or varargs param

Default value:

execute

getScriptInitMethod

public String getScriptInitMethod()

An optional no parameter void return method in the script that serves as an initializer

Can be null:

true

setScriptInitMethod

public void setScriptInitMethod(String scriptInitMethod)

An optional no parameter void return method in the script that serves as an initializer

Can be null:

true

getScriptObject

public Object getScriptObject()

setScriptObject

public void setScriptObject(Object scriptObject)