Package org.technologybrewery.fermenter.stout.client.service

Class LocalOptimizationUtil

java.lang.Object

org.technologybrewery.fermenter.stout.client.service.LocalOptimizationUtil

public final class LocalOptimizationUtil
extends Object

Utility methods leverages to perform locally optimized delegate calls.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	LocalOptimizationUtil.BusinessObjectCollectionJsonOutputStream	Converts an OutputStream into an InputStream via an underlying Pipes implementation to prevent loading the entire object into memory for a ValueServiceResponse -> ValueServiceResponse transformation.
class	LocalOptimizationUtil.BusinessObjectJsonOutputStream	Converts an OutputStream into an InputStream via an underlying Pipes implementation to prevent loading the entire object into memory for a ValueServiceResponse -> ValueServiceResponse transformation.
class	LocalOptimizationUtil.TransferObjectJsonOutputStream	Converts an OutputStream into an InputStream via an underlying Pipes implementation to prevent loading the entire object into memory for a TransferObject -> BusinessObject transformation.

Method Summary

Modifier and Type	Method	Description
static Object	convertResponseToTransferObjectListViaJson(Object input, Class<?> transferObjectTargetClass, com.fasterxml.jackson.databind.ObjectMapper objectMapper)	Converts a ValueServiceResponse containing BusinessObject(s) to a ValueServiceResponse containing TransferObject(s).
static Object	convertResponseToTransferObjectPageWrapperViaJson(Object input, Class<?> transferObjectTargetClass, com.fasterxml.jackson.databind.ObjectMapper objectMapper)	Converts a ValueServiceResponse containing BusinessObject(s) to a ValueServiceResponse containing TransferObject(s).
static Object	convertResponseToTransferObjectViaJson(Object input, Class<?> transferObjectTargetClass, com.fasterxml.jackson.databind.ObjectMapper objectMapper)	Converts a ValueServiceResponse containing BusinessObject(s) to a ValueServiceResponse containing TransferObject(s).
static Object	convertToBusinessObjectViaJson(Collection<? extends TransferObject> transferObjectList, com.fasterxml.jackson.databind.ObjectMapper objectMapper)	Converts a List of TransferObjects to a List of corresponding BusinessObjects.
static Object	convertToBusinessObjectViaJson(FindByExampleCriteria<? extends TransferObject> criteria, com.fasterxml.jackson.databind.ObjectMapper objectMapper)	Converts FindByExampleCriteria with a TransferObject probe to a one containing the equivalent BusinessObject probe.
static Object	convertToBusinessObjectViaJson(TransferObject transferObject, com.fasterxml.jackson.databind.ObjectMapper objectMapper)	Converts a TransferObject to a corresponding BusinessObject.
static com.fasterxml.jackson.databind.ObjectMapper	getObjectMapper(String objectMapperManagerClassName)	Looks up a ObjectMapperManager via reflection to avoid compile-time coupling between client and domain modules.
static boolean	isLocalServicePresent(String serviceClassName)	Checks to see if a local service is present for optimization.
static Class<?>	lookupBusinessObjectClassByTransferObject(Class<? extends TransferObject> transferObjectClass)	Finds the BusinessObject class corresponding to a given TransferObject class.
static Class<?>	lookupClassByName(String className)	Normal Class.forName(), but with implicit exception handling for cleaner overall code in this and related classes.

Methods inherited from class java.lang.Object

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

Method Detail

isLocalServicePresent

public static boolean isLocalServicePresent(String serviceClassName)

Checks to see if a local service is present for optimization. Requires that the class is in the classpath AND that service is registered and available via Spring. If only the class is available, but the Spring bean is not, will emit a warning.

Parameters:

serviceClassName - fully qualified class name of the service

Returns:

whether or not a local optimization is available

convertToBusinessObjectViaJson

public static Object convertToBusinessObjectViaJson(Collection<? extends TransferObject> transferObjectList,
                                                    com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Converts a List of TransferObjects to a List of corresponding BusinessObjects.

Parameters:

transferObjectList - list of transfer objects

objectMapper - ObjectMapper to perform the transformation

Returns:

list of business objects

convertToBusinessObjectViaJson

public static Object convertToBusinessObjectViaJson(FindByExampleCriteria<? extends TransferObject> criteria,
                                                    com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Converts FindByExampleCriteria with a TransferObject probe to a one containing the equivalent BusinessObject probe.

Parameters:

criteria - criteria containing a TransferObject probe

objectMapper - ObjectMapper to perform the transformation

Returns:

equivalent criteria containing a BusinessObject probe

convertToBusinessObjectViaJson

public static Object convertToBusinessObjectViaJson(TransferObject transferObject,
                                                    com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Converts a TransferObject to a corresponding BusinessObject.

Parameters:

transferObject - list of transfer objects

objectMapper - ObjectMapper to perform the transformation

Returns:

business object

convertResponseToTransferObjectViaJson

public static Object convertResponseToTransferObjectViaJson(Object input,
                                                            Class<?> transferObjectTargetClass,
                                                            com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Converts a ValueServiceResponse containing BusinessObject(s) to a ValueServiceResponse containing TransferObject(s).

Parameters:

input - the inbound ValueServiceResponse

transferObjectTargetClass - the transfer object class we want to have in the result

objectMapper - ObjectMapper to perform the transformation

Returns:

a ValueServiceResponse with a TransferObject-based payload

convertResponseToTransferObjectListViaJson

public static Object convertResponseToTransferObjectListViaJson(Object input,
                                                                Class<?> transferObjectTargetClass,
                                                                com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Converts a ValueServiceResponse containing BusinessObject(s) to a ValueServiceResponse containing TransferObject(s).

Parameters:

input - the inbound ValueServiceResponse

transferObjectTargetClass - the transfer object class we want to have in the result

objectMapper - ObjectMapper to perform the transformation

Returns:

a ValueServiceResponse with a TransferObject-based payload

convertResponseToTransferObjectPageWrapperViaJson

public static Object convertResponseToTransferObjectPageWrapperViaJson(Object input,
                                                                       Class<?> transferObjectTargetClass,
                                                                       com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Converts a ValueServiceResponse containing BusinessObject(s) to a ValueServiceResponse containing TransferObject(s).

Parameters:

input - the inbound ValueServiceResponse

transferObjectTargetClass - the transfer object class we want to have in the result

objectMapper - ObjectMapper to perform the transformation

Returns:

a ValueServiceResponse with a TransferObject-based payload

lookupBusinessObjectClassByTransferObject

public static Class<?> lookupBusinessObjectClassByTransferObject(Class<? extends TransferObject> transferObjectClass)

Finds the BusinessObject class corresponding to a given TransferObject class.

Parameters:

transferObjectClass - the specific Transfer object class (e.g., foo.bar.SimpleDomain)

Returns:

the specific BusinessObject class (e.g., foo.bar.SimpleDomainBO)

lookupClassByName

public static Class<?> lookupClassByName(String className)

Normal Class.forName(), but with implicit exception handling for cleaner overall code in this and related classes.

Parameters:

className - fully qualified class name to lookup

Returns:

the Class for that lookup value (or an UnrecoverableException, if not found)

getObjectMapper

public static com.fasterxml.jackson.databind.ObjectMapper getObjectMapper(String objectMapperManagerClassName)

Looks up a ObjectMapperManager via reflection to avoid compile-time coupling between client and domain modules.

Parameters:

objectMapperManagerClassName - fully qualified class name of the ObjectMapperManager to lookup

Returns:

the resulting instance or an UnrecoverableException, if not found