Class ChainrEntry

java.lang.Object

com.bazaarvoice.jolt.chainr.spec.ChainrEntry

public class ChainrEntry
extends Object

Helper class that encapsulates the information one of the individual transform entries in the Chainr spec's list.

Field Summary

Fields

Modifier and Type	Field	Description
private final int	index
private final boolean	isSpecDriven
private final Class<? extends JoltTransform>	joltTransformClass
static final String	OPERATION_KEY
private final String	operationClassName
private final Object	spec
static final String	SPEC_KEY
static final Map<String,String>	STOCK_TRANSFORMS	Map transform "operation" names to the classes that handle them

Constructor Summary

Constructors

Constructor	Description
ChainrEntry(int index, Object chainrEntryObj, ClassLoader classLoader)	Process an element from the Chainr Spec into a ChainrEntry class.

Method Summary

Modifier and Type	Method	Description
private String	extractOperationString(Map<String,Object> chainrEntryMap)
String	getErrorMessageIndexSuffix()	Generate an error message suffix what lists the index of the ChainrEntry in the overall ChainrSpec.
Class<? extends JoltTransform>	getJoltTransformClass()
Object	getSpec()
boolean	isSpecDriven()
private Class<? extends JoltTransform>	loadJoltTransformClass(ClassLoader classLoader)

Methods inherited from class Object

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

Field Details

STOCK_TRANSFORMS

public static final Map<String,String> STOCK_TRANSFORMS

Map transform "operation" names to the classes that handle them

OPERATION_KEY

public static final String OPERATION_KEY

See Also:

• Constant Field Values

SPEC_KEY

public static final String SPEC_KEY

See Also:

• Constant Field Values

index

private final int index

spec

private final Object spec

operationClassName

private final String operationClassName

joltTransformClass

private final Class<? extends JoltTransform> joltTransformClass

isSpecDriven

private final boolean isSpecDriven

Constructor Details

ChainrEntry

public ChainrEntry(int index,
 Object chainrEntryObj,
 ClassLoader classLoader)

Process an element from the Chainr Spec into a ChainrEntry class. This method tries to validate the syntax of the Chainr spec, whereas the ChainrInstantiator deals with loading the Transform classes.

Parameters:

index - the index of the chainrEntryObj, used in reporting errors

chainrEntryObj - the unknown Object from the Chainr list

Method Details

extractOperationString

private String extractOperationString(Map<String,Object> chainrEntryMap)

loadJoltTransformClass

private Class<? extends JoltTransform> loadJoltTransformClass(ClassLoader classLoader)

getErrorMessageIndexSuffix

public String getErrorMessageIndexSuffix()

Generate an error message suffix what lists the index of the ChainrEntry in the overall ChainrSpec.

getSpec

public Object getSpec()

Returns:

Spec for the transform, can be null

getJoltTransformClass

public Class<? extends JoltTransform> getJoltTransformClass()

Returns:

Class instance specified by this ChainrEntry

isSpecDriven

public boolean isSpecDriven()

Returns:

true if the Jolt Transform specified by this ChainrEntry implements the SpecTransform interface