Package com.broadleafcommerce.dataexchange.service

Class AbstractDataExchangeService<T extends ExchangeObject>

java.lang.Object
com.broadleafcommerce.dataexchange.service.AbstractDataExchangeService<T>
Type Parameters:
T -
All Implemented Interfaces:
DataExchangeService<T>
Direct Known Subclasses:
DefaultComprehensiveProductExchangeService
public abstract class AbstractDataExchangeService<T extends ExchangeObject> extends Object implements DataExchangeService<T>
Abstract base implementation for handling the orchestration of the requisite calls to multiple services and/or service API endpoints.
Author:
Kelly Tisdell (ktisdell)

  • Constructor Details

    • AbstractDataExchangeService

      public AbstractDataExchangeService(org.springframework.core.task.AsyncTaskExecutor executor, org.springframework.retry.support.RetryTemplate retryTemplate, com.broadleafcommerce.common.extension.TypeFactory typeFactory, DataExchangeProperties properties, List<BatchExtensionProcessor> batchExtensionProcessors, BatchItemErrorHandler errorResolver)

  • Method Details

    • saveAll

      public final BatchContext<T> saveAll(@NonNull @NonNull List<T> entities, @NonNull @NonNull com.broadleafcommerce.data.tracking.core.context.ContextInfo contextInfo)
      This method takes the list of entities to be saved, splits them into their individual pieces that have to be saved separately. It then processes the primary or containing entity synchronously first, and then processes child, or secondary, entities asynchronously for better performance. Each additional network call (to additional API endpoints or services) is added overhead, which is why this process attempts to parallelize parts of it.
      Specified by:
      saveAll in interface DataExchangeService<T extends ExchangeObject>
      Parameters:
      entities - the entities to be saved
      Returns:
      the BatchContext which should contain all state for the batch, including all results and errors

    • exceedMaxBatchSizeError

      protected String exceedMaxBatchSizeError(@NotNull @NotNull List<T> entities)

    • split

      protected void split(List<T> entities, BatchContext<T> batchContext)
      This method "flattens" the object graph into a Map of exchange objects. Each key in the map is a correlationId for the ExchangeObject. Each ExchangeObject will be populated with the parent's correlationId: ExchangeObject.getParentCorrelationId(), or null if there is no parent. With this data, items can be collected, processed separately, and reconstructed - or aggregated - at the end of the process.
      Parameters:
      entities - to be split into multiple constituents, presumably to be saved by different API calls
      batchContext - the batch context

    • saveAll

      protected abstract void saveAll(BatchContext<T> batchContext)
      This is the entry point for subclasses to inject logic to handle the structure that has been passed in. This may be called in a different Thread than the calling thread. Typically, the containing object needs to be processed first to ensure that the correct references (e.g. contextIds, pricing keys, etc. are available). It is expected that the values in the Map will be updated when they are created or saved, allowing the aggregate method to aggregate the details.
      Parameters:
      batchContext - the batch context
      See Also:

    • aggregate

      protected void aggregate(BatchContext<T> batchContext)
      This process takes all the entities that have been saved, aggregates or augments them, and returns them. They are all, presumably, saved and can be re-associated with their correlationIds, and their parentCorrelationsIds. The entities may already be composed, but this allows implementors to define errors as well.
      Parameters:
      batchContext - the batch context
      See Also:

    • createCompletableFuture

      protected <R> CompletableFuture<R> createCompletableFuture(Supplier<R> supplier)
      Returns a CompletableFuture that will execute the provided Supplier in another thread provided by getExecutor() when a terminating method is invoked. Implementors of the Supplier interface or lambda should make every effort to avoid throwing exceptions from the supplier so that we can gather exceptions as needed. Consider passing a Retryable to this method, which implements Callable and which will not, by default, throw an exception.
      Parameters:
      supplier - a Supplier implementation that will be executed in another thread
      Returns:
      a CompletableFuture that will manage the execution of the provided Supplier interface

    • createCompletableFuture

      protected CompletableFuture<Void> createCompletableFuture(Runnable runnable)
      Returns a CompletableFuture that will execute the provided Runnable in another thread provided by getExecutor() when a terminating method is invoked. Implementors of the Runnable interface or lambda should make every effort to avoid throwing exceptions from the supplier so that we can gather exceptions as needed. Consider passing a Retryable to this method, which implements Runnable and which will not, by default, throw an exception.
      Parameters:
      runnable - a Runnable implementation that will be executed in another thread
      Returns:
      a CompletableFuture that will manage the execution of the provided Supplier interface

    • retryableSupplier

      protected <R, C extends ExchangeObject> Supplier<R> retryableSupplier(C payload, BatchContext<T> batchContext, Callable<R> supplier)

    • retryableSupplier

      protected <R, C extends ExchangeObject> Supplier<List<R>> retryableSupplier(List<C> payload, BatchContext<T> batchContext, Callable<List<R>> supplier)

    • retryableRunnable

      protected <C extends ExchangeObject> Runnable retryableRunnable(C payload, BatchContext<T> batchContext, Callable<Void> supplier)

    • getExecutor

      protected org.springframework.core.task.AsyncTaskExecutor getExecutor()

    • getTypeFactory

      protected com.broadleafcommerce.common.extension.TypeFactory getTypeFactory()

    • getDefaultRetryTemplate

      protected org.springframework.retry.support.RetryTemplate getDefaultRetryTemplate()

    • getProperties

      protected DataExchangeProperties getProperties()

    • getErrorResolver

      protected BatchItemErrorHandler getErrorResolver()