com.commercetools.sync.services.impl

Class StateServiceImpl

java.lang.Object

com.commercetools.sync.services.impl.StateServiceImpl

All Implemented Interfaces:

StateService

public final class StateServiceImpl
extends java.lang.Object
implements StateService

Field Summary

Fields

Modifier and Type	Field and Description
protected com.github.benmanes.caffeine.cache.Cache<java.lang.String,java.lang.String>	keyToIdCache
protected static int	MAXIMUM_ALLOWED_UPDATE_ACTIONS

Constructor Summary

Constructors

Constructor and Description
StateServiceImpl(StateSyncOptions syncOptions)

Method Summary

Modifier and Type	Method and Description
java.util.concurrent.CompletionStage<java.util.Map<java.lang.String,java.lang.String>>	cacheKeysToIds(java.util.Set<java.lang.String> keys) Filters out the keys which are already cached and fetches only the not-cached state keys from the CTP project defined in an injected SphereClient and stores a mapping for every state to id in the cached map of keys -> ids and returns this cached map.
java.util.concurrent.CompletionStage<java.util.Optional<io.sphere.sdk.states.State>>	createState(io.sphere.sdk.states.StateDraft stateDraft) Given a resource draft of type StateDraft, this method attempts to create a resource State based on it in the CTP project defined by the sync options.
java.util.concurrent.CompletionStage<java.util.Optional<java.lang.String>>	fetchCachedStateId(java.lang.String key) Given a key, this method first checks if a cached map of state keys -> ids is not empty.
java.util.concurrent.CompletionStage<java.util.Set<io.sphere.sdk.states.State>>	fetchMatchingStatesByKeys(java.util.Set<java.lang.String> stateKeys) Given a Set of state keys, this method fetches a set of all the states, matching given set of keys in the CTP project, defined in an injected SphereClient.
java.util.concurrent.CompletionStage<java.util.Set<io.sphere.sdk.states.State>>	fetchMatchingStatesByKeysWithTransitions(java.util.Set<java.lang.String> stateKeys) Given a Set of state keys, this method fetches a set of all the states with expanded transitions, matching given set of keys in the CTP project, defined in an injected SphereClient.
java.util.concurrent.CompletionStage<java.util.Optional<io.sphere.sdk.states.State>>	fetchState(java.lang.String key) Given a state key, this method fetches a state that matches given key in the CTP project defined in a potentially injected SphereClient.
java.util.concurrent.CompletionStage<io.sphere.sdk.states.State>	updateState(io.sphere.sdk.states.State state, java.util.List<io.sphere.sdk.commands.UpdateAction<io.sphere.sdk.states.State>> updateActions) Given a State and a List<UpdateAction<State>>, this method issues an update request with these update actions on this State in the CTP project defined in a potentially injected SphereClient.

Methods inherited from class java.lang.Object

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

Field Detail

keyToIdCache

protected final com.github.benmanes.caffeine.cache.Cache<java.lang.String,java.lang.String> keyToIdCache

MAXIMUM_ALLOWED_UPDATE_ACTIONS

protected static final int MAXIMUM_ALLOWED_UPDATE_ACTIONS

See Also:

Constant Field Values

Constructor Detail

StateServiceImpl

public StateServiceImpl(@Nonnull
                        StateSyncOptions syncOptions)

Method Detail

cacheKeysToIds

@Nonnull
public java.util.concurrent.CompletionStage<java.util.Map<java.lang.String,java.lang.String>> cacheKeysToIds(@Nonnull
                                                                                                                      java.util.Set<java.lang.String> keys)

Description copied from interface: StateService

Filters out the keys which are already cached and fetches only the not-cached state keys from the CTP project defined in an injected SphereClient and stores a mapping for every state to id in the cached map of keys -> ids and returns this cached map.

Note: If all the supplied keys are already cached, the cached map is returned right away with no request to CTP.

Specified by:

cacheKeysToIds in interface StateService

Parameters:

keys - the state keys to fetch and cache the ids for.

Returns:

CompletionStage<Map> in which the result of it's completion contains a map of all state keys -> ids

fetchCachedStateId

@Nonnull
public java.util.concurrent.CompletionStage<java.util.Optional<java.lang.String>> fetchCachedStateId(@Nullable
                                                                                                              java.lang.String key)

Description copied from interface: StateService

Given a key, this method first checks if a cached map of state keys -> ids is not empty. If not, it returns a completed future that contains an optional that contains what this key maps to in the cache. If the cache is empty, the method populates the cache with the mapping of all state keys to ids in the CTP project, by querying the CTP project for all states.

After that, the method returns a CompletionStage<Optional<String>> in which the result of it's completion could contain an Optional with the id inside of it or an empty Optional if no State was found in the CTP project with this key.

Specified by:

fetchCachedStateId in interface StateService

Parameters:

key - the key by which a State id should be fetched from the CTP project.

Returns:

CompletionStage<Optional<String>> in which the result of its completion could contain an Optional with the id inside of it or an empty Optional if no State was found in the CTP project with this key.

fetchMatchingStatesByKeys

@Nonnull
public java.util.concurrent.CompletionStage<java.util.Set<io.sphere.sdk.states.State>> fetchMatchingStatesByKeys(@Nonnull
                                                                                                                          java.util.Set<java.lang.String> stateKeys)

Description copied from interface: StateService

Given a Set of state keys, this method fetches a set of all the states, matching given set of keys in the CTP project, defined in an injected SphereClient. A mapping of the key to the id of the fetched states is persisted in an in-memory map.

Specified by:

fetchMatchingStatesByKeys in interface StateService

Parameters:

stateKeys - set of state keys to fetch matching states by.

Returns:

CompletionStage<Map> in which the result of it's completion contains a Set of all matching states.

fetchMatchingStatesByKeysWithTransitions

@Nonnull
public java.util.concurrent.CompletionStage<java.util.Set<io.sphere.sdk.states.State>> fetchMatchingStatesByKeysWithTransitions(@Nonnull
                                                                                                                                         java.util.Set<java.lang.String> stateKeys)

Description copied from interface: StateService

Given a Set of state keys, this method fetches a set of all the states with expanded transitions, matching given set of keys in the CTP project, defined in an injected SphereClient. A mapping of the key to the id of the fetched states is persisted in an in-memory map.

Specified by:

fetchMatchingStatesByKeysWithTransitions in interface StateService

Parameters:

stateKeys - set of state keys to fetch matching states by.

Returns:

CompletionStage<Map> in which the result of it's completion contains a Set of all matching states with expanded transitions.

fetchState

@Nonnull
public java.util.concurrent.CompletionStage<java.util.Optional<io.sphere.sdk.states.State>> fetchState(@Nullable
                                                                                                                java.lang.String key)

Description copied from interface: StateService

Given a state key, this method fetches a state that matches given key in the CTP project defined in a potentially injected SphereClient. If there is no matching state an empty Optional will be returned in the returned future. A mapping of the key to the id of the fetched state is persisted in an in -memory map.

Specified by:

fetchState in interface StateService

Parameters:

key - the key of the state to fetch.

Returns:

CompletionStage<Optional> in which the result of it's completion contains an Optional that contains the matching State if exists, otherwise empty.

createState

@Nonnull
public java.util.concurrent.CompletionStage<java.util.Optional<io.sphere.sdk.states.State>> createState(@Nonnull
                                                                                                                 io.sphere.sdk.states.StateDraft stateDraft)

Description copied from interface: StateService

Given a resource draft of type StateDraft, this method attempts to create a resource State based on it in the CTP project defined by the sync options.

A completion stage containing an empty option and the error callback will be triggered in those cases:

• the draft has a blank key
• the create request fails on CTP

On the other hand, if the resource gets created successfully on CTP, then the created resource's id and key are cached and the method returns a CompletionStage in which the result of it's completion contains an instance Optional of the resource which was created.

Specified by:

createState in interface StateService

Parameters:

stateDraft - the resource draft to create a resource based off of.

Returns:

a CompletionStage containing an optional with the created resource if successful otherwise an empty optional.

updateState

@Nonnull
public java.util.concurrent.CompletionStage<io.sphere.sdk.states.State> updateState(@Nonnull
                                                                                             io.sphere.sdk.states.State state,
                                                                                             @Nonnull
                                                                                             java.util.List<io.sphere.sdk.commands.UpdateAction<io.sphere.sdk.states.State>> updateActions)

Description copied from interface: StateService

Given a State and a List<UpdateAction<State>>, this method issues an update request with these update actions on this State in the CTP project defined in a potentially injected SphereClient. This method returns CompletionStage<State> in which the result of it's completion contains an instance of the State which was updated in the CTP project.

Specified by:

updateState in interface StateService

Parameters:

state - the State to update.

updateActions - the update actions to update the State with.

Returns:

CompletionStage<State> containing as a result of it's completion an instance of the State which was updated in the CTP project or a SphereException.