com.neurosys.modules.etl

Class VelocityTransformer

java.lang.Object

com.neurosys.modules.etl.VelocityTransformer

All Implemented Interfaces:

Serializable, org.apache.commons.collections.Transformer

public class VelocityTransformer
extends Object
implements org.apache.commons.collections.Transformer, Serializable

For a Given input Map or Context or Object merged with the Template defined @ templatePath, return the Content as String.
One can also refer to the input context, if its an Object as input (input is default but one can change it with contextName) in the Velocity script. One can also refer to the springAppContext by the variable name in the context springAppContext.
For this implementation there is no additional caching provided. One may check or set template caching using Velocity native support/configs for Template caching.

Author:

Arjun Dhar

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
VelocityTransformer()

Method Summary

Modifier and Type	Method and Description
void	autoInitEngine()
String	getContextName() If the input (context) is an Object then one can refer to this object in the Velocity context as the value of this variable.
org.apache.velocity.app.VelocityEngine	getEngine() The Core Velocity Engine
List	getMacroLibraries() macroLibraries is a list of template files containing macros to be used when merging
String	getTemplatePath() Template Path as per velocity conventions
void	setContextName(String contextName) If the input (context) is an Object then one can refer to this object in the Velocity context as the value of this variable.
void	setEngine(org.apache.velocity.app.VelocityEngine engine) The Core Velocity Engine
void	setMacroLibraries(List macroLibraries) macroLibraries is a list of template files containing macros to be used when merging
void	setTemplatePath(String templatePath) Template Path as per velocity conventions
Object	transform(Object input)

Methods inherited from class java.lang.Object

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

Constructor Detail

VelocityTransformer

public VelocityTransformer()

Method Detail

autoInitEngine

@PostConstruct
public void autoInitEngine()

transform

public Object transform(Object input)

Specified by:

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

getTemplatePath

public String getTemplatePath()

Template Path as per velocity conventions

setTemplatePath

public void setTemplatePath(String templatePath)

Template Path as per velocity conventions

getEngine

public org.apache.velocity.app.VelocityEngine getEngine()

The Core Velocity Engine

setEngine

public void setEngine(org.apache.velocity.app.VelocityEngine engine)

The Core Velocity Engine

getMacroLibraries

public List getMacroLibraries()

macroLibraries is a list of template files containing macros to be used when merging

Can be null:

true

setMacroLibraries

public void setMacroLibraries(List macroLibraries)

macroLibraries is a list of template files containing macros to be used when merging

Can be null:

true

getContextName

public String getContextName()

If the input (context) is an Object then one can refer to this object in the Velocity context as the value of this variable.

Default value:

input

setContextName

public void setContextName(String contextName)

If the input (context) is an Object then one can refer to this object in the Velocity context as the value of this variable.

Default value:

input