com.commercetools.sync.commons.helpers

Class BaseReferenceResolver<T,S extends BaseSyncOptions>

java.lang.Object

com.commercetools.sync.commons.helpers.BaseReferenceResolver<T,S>

Type Parameters:

S - a subclass implementation of BaseSyncOptions that is used to allow/deny some specific options, specified by the user, on reference resolution.

Direct Known Subclasses:

AttributeDefinitionReferenceResolver, CustomReferenceResolver, ProductReferenceResolver, ProductTypeReferenceResolver, StateReferenceResolver, VariantReferenceResolver

public abstract class BaseReferenceResolver<T,S extends BaseSyncOptions>
extends java.lang.Object

This class is responsible for providing an abstract implementation of reference resolution on different CTP resources. For concrete reference resolution implementation of the CTP resources, this class should be extended.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	BLANK_ID_VALUE_ON_REFERENCE
static java.lang.String	BLANK_KEY_VALUE_ON_RESOURCE_IDENTIFIER
protected S	options

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BaseReferenceResolver(S options)

Method Summary

Modifier and Type	Method and Description
protected static <T> java.lang.String	getIdFromReference(io.sphere.sdk.models.Reference<T> reference) This method gets the key value on the passed Reference from the id field, if valid.
protected static <T> java.lang.String	getKeyFromResourceIdentifier(io.sphere.sdk.models.ResourceIdentifier<T> resourceIdentifier) This method gets the key value on the passed ResourceIdentifier, if valid.
abstract java.util.concurrent.CompletionStage<T>	resolveReferences(T draft) Given a draft this method attempts to resolve the all the references on the draft to return a CompletionStage which contains a new instance of the draft with the resolved references.

Methods inherited from class java.lang.Object

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

Field Detail

BLANK_KEY_VALUE_ON_RESOURCE_IDENTIFIER

public static final java.lang.String BLANK_KEY_VALUE_ON_RESOURCE_IDENTIFIER

See Also:

Constant Field Values

BLANK_ID_VALUE_ON_REFERENCE

public static final java.lang.String BLANK_ID_VALUE_ON_REFERENCE

See Also:

Constant Field Values

options

protected S extends BaseSyncOptions options

Constructor Detail

BaseReferenceResolver

protected BaseReferenceResolver(@Nonnull
                                S options)

Method Detail

resolveReferences

public abstract java.util.concurrent.CompletionStage<T> resolveReferences(@Nonnull
                                                                          T draft)

Given a draft this method attempts to resolve the all the references on the draft to return a CompletionStage which contains a new instance of the draft with the resolved references.

Parameters:

draft - the productDraft to resolve it's references.

Returns:

a CompletionStage that contains as a result a new draft instance with resolved references or, in case an error occurs during reference resolution, a ReferenceResolutionException.

getIdFromReference

@Nonnull
protected static <T> java.lang.String getIdFromReference(@Nonnull
                                                                  io.sphere.sdk.models.Reference<T> reference)
                                                           throws ReferenceResolutionException

This method gets the key value on the passed Reference from the id field, if valid. If it is not valid, a ReferenceResolutionException will be thrown. The validity checks are:

• Checks if the id value is not null or not empty.

If the above checks pass, the key value is returned. Otherwise a ReferenceResolutionException is thrown.

Type Parameters:

T - the type of the reference.

Parameters:

reference - the reference from which the key value is validated and returned.

Returns:

the Id value on the ResourceIdentifier

Throws:

ReferenceResolutionException - if any of the validation checks fail.

getKeyFromResourceIdentifier

@Nonnull
protected static <T> java.lang.String getKeyFromResourceIdentifier(@Nonnull
                                                                            io.sphere.sdk.models.ResourceIdentifier<T> resourceIdentifier)
                                                                     throws ReferenceResolutionException

This method gets the key value on the passed ResourceIdentifier, if valid. If it is not valid, a ReferenceResolutionException will be thrown. The validity checks are:

• Checks if the key value is not null or not empty.
• Checks if the key value is not equal to KEY_IS_NOT_SET(fetched from cache).

If the above checks pass, the key value is returned. Otherwise a ReferenceResolutionException is thrown.

Type Parameters:

T - the type of the reference.

Parameters:

resourceIdentifier - the resource identifier from which the key value is validated and returned.

Returns:

the key value on the ResourceIdentifier

Throws:

ReferenceResolutionException - if any of the validation checks fail.