Package com.linkedin.venice.fastclient

Class InternalAvroStoreClient<K,V>

java.lang.Object

com.linkedin.venice.fastclient.InternalAvroStoreClient<K,V>

All Implemented Interfaces:

AvroGenericReadComputeStoreClient<K,V>, AvroGenericStoreClient<K,V>, Closeable, AutoCloseable

Direct Known Subclasses:

DelegatingAvroStoreClient, DispatchingAvroGenericStoreClient

public abstract class InternalAvroStoreClient<K,V>
extends Object
implements AvroGenericReadComputeStoreClient<K,V>

All the internal implementations of different tiers should extend this class. This class adds in RequestContext object for the communication among different tiers.

Constructor Summary

Constructors

Constructor	Description
InternalAvroStoreClient()

Method Summary

Modifier and Type	Method	Description
protected CompletableFuture<Map<K,V>>	batchGet(BatchGetRequestContext<K,V> requestContext, Set<K> keys)
final CompletableFuture<Map<K,V>>	batchGet(Set<K> keys)	Get the values associated with the given keys and return them in a map of keys to values.
final void	compute(ComputeRequestWrapper computeRequestWrapper, Set<K> keys, org.apache.avro.Schema resultSchema, StreamingCallback<K,ComputeGenericRecord> callback, long preRequestTimeInNS)
protected abstract void	compute(ComputeRequestContext<K,V> requestContext, ComputeRequestWrapper computeRequestWrapper, Set<K> keys, org.apache.avro.Schema resultSchema, StreamingCallback<K,ComputeGenericRecord> callback, long preRequestTimeInNS)
final void	computeWithKeyPrefixFilter(byte[] keyPrefix, ComputeRequestWrapper computeRequestWrapper, StreamingCallback<org.apache.avro.generic.GenericRecord,org.apache.avro.generic.GenericRecord> callback)
protected abstract CompletableFuture<V>	get(GetRequestContext requestContext, K key)
CompletableFuture<V>	get(K key)	Lookup the value by given key, and get(key).get() will return null if it doesn't exist.
abstract ClientConfig	getClientConfig()
final boolean	isProjectionFieldValidationEnabled()
protected final CompletableFuture<VeniceResponseMap<K,V>>	streamingBatchGet(BatchGetRequestContext<K,V> requestContext, Set<K> keys)
protected abstract void	streamingBatchGet(BatchGetRequestContext<K,V> requestContext, Set<K> keys, StreamingCallback<K,V> callback)
final CompletableFuture<VeniceResponseMap<K,V>>	streamingBatchGet(Set<K> keys)	Get the values associated with the given keys and return them in a map of keys to values.
final void	streamingBatchGet(Set<K> keys, StreamingCallback<K,V> callback)	Streaming interface for AvroGenericStoreClient.batchGet(Set).

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.linkedin.venice.client.store.AvroGenericReadComputeStoreClient

compute, compute, compute, compute, getSchemaReader

Methods inherited from interface com.linkedin.venice.client.store.AvroGenericStoreClient

close, get, getKeySchema, getLatestValueSchema, getStoreName, start

Constructor Details

InternalAvroStoreClient

public InternalAvroStoreClient()

Method Details

getClientConfig

public abstract ClientConfig getClientConfig()

isProjectionFieldValidationEnabled

public final boolean isProjectionFieldValidationEnabled()

Specified by:

isProjectionFieldValidationEnabled in interface AvroGenericReadComputeStoreClient<K,V>

get

public CompletableFuture<V> get(K key)
                         throws VeniceClientException

Description copied from interface: AvroGenericStoreClient

Lookup the value by given key, and get(key).get() will return null if it doesn't exist. For now, if any backend error/exception happens, get(Object key).get() will throw ExecutionException, which is a wrapper of the real exception.

Specified by:

get in interface AvroGenericStoreClient<K,V>

Returns:

Throws:

VeniceClientException

get

protected abstract CompletableFuture<V> get(GetRequestContext requestContext,
 K key)
                                     throws VeniceClientException

Throws:

VeniceClientException

batchGet

public final CompletableFuture<Map<K,V>> batchGet(Set<K> keys)
                                           throws VeniceClientException

Description copied from interface: AvroGenericStoreClient

Get the values associated with the given keys and return them in a map of keys to values. Note that the returned map will only contain entries for the keys which have a value associated with them.

Specified by:

batchGet in interface AvroGenericStoreClient<K,V>

Returns:

Throws:

VeniceClientException

batchGet

protected CompletableFuture<Map<K,V>> batchGet(BatchGetRequestContext<K,V> requestContext,
 Set<K> keys)
                                        throws VeniceClientException

Throws:

VeniceClientException

streamingBatchGet

public final void streamingBatchGet(Set<K> keys,
 StreamingCallback<K,V> callback)
                             throws VeniceClientException

Description copied from interface: AvroGenericStoreClient

Streaming interface for AvroGenericStoreClient.batchGet(Set). You can find more info in StreamingCallback.

Specified by:

streamingBatchGet in interface AvroGenericStoreClient<K,V>

Throws:

VeniceClientException

streamingBatchGet

public final CompletableFuture<VeniceResponseMap<K,V>> streamingBatchGet(Set<K> keys)
                                                                  throws VeniceClientException

Description copied from interface: AvroGenericStoreClient

Get the values associated with the given keys and return them in a map of keys to values. When time-out happens for the following invocation: streamingBatchGet(keys).get(waitingTime, unit); This function will return the available response instead of throwing a TimeoutException. It means this function could return either full response or partial response.

Specified by:

streamingBatchGet in interface AvroGenericStoreClient<K,V>

Returns:

Throws:

VeniceClientException

streamingBatchGet

protected final CompletableFuture<VeniceResponseMap<K,V>> streamingBatchGet(BatchGetRequestContext<K,V> requestContext,
 Set<K> keys)

streamingBatchGet

protected abstract void streamingBatchGet(BatchGetRequestContext<K,V> requestContext,
 Set<K> keys,
 StreamingCallback<K,V> callback)

compute

public final void compute(ComputeRequestWrapper computeRequestWrapper,
 Set<K> keys,
 org.apache.avro.Schema resultSchema,
 StreamingCallback<K,ComputeGenericRecord> callback,
 long preRequestTimeInNS)
                   throws VeniceClientException

Specified by:

compute in interface AvroGenericReadComputeStoreClient<K,V>

Throws:

VeniceClientException

compute

protected abstract void compute(ComputeRequestContext<K,V> requestContext,
 ComputeRequestWrapper computeRequestWrapper,
 Set<K> keys,
 org.apache.avro.Schema resultSchema,
 StreamingCallback<K,ComputeGenericRecord> callback,
 long preRequestTimeInNS)
                         throws VeniceClientException

Throws:

VeniceClientException

computeWithKeyPrefixFilter

public final void computeWithKeyPrefixFilter(byte[] keyPrefix,
 ComputeRequestWrapper computeRequestWrapper,
 StreamingCallback<org.apache.avro.generic.GenericRecord,org.apache.avro.generic.GenericRecord> callback)

Specified by:

computeWithKeyPrefixFilter in interface AvroGenericReadComputeStoreClient<K,V>