Package de.otto.synapse.compaction.s3

Class SnapshotMessageConsumer

java.lang.Object

de.otto.synapse.compaction.s3.SnapshotMessageConsumer

All Implemented Interfaces:

de.otto.synapse.consumer.MessageConsumer<String>, Consumer<de.otto.synapse.message.Message<String>>

public class SnapshotMessageConsumer
extends Object
implements de.otto.synapse.consumer.MessageConsumer<String>

A MessageConsumer that is used to update Snapshots.

Constructor Summary

Constructors

Constructor	Description
SnapshotMessageConsumer(de.otto.synapse.translator.MessageFormat messageFormat, de.otto.synapse.state.StateRepository<String> stateRepository)	Creates a StatefulMessageConsumer.

Method Summary

Modifier and Type	Method	Description
void	accept(de.otto.synapse.message.Message<String> message)
Pattern	keyPattern()	Returns the pattern of message keys accepted by this consumer.
Class<String>	payloadType()	Returns the expected payload type of events consumed by this EventConsumer.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Consumer

andThen

Constructor Details

SnapshotMessageConsumer

public SnapshotMessageConsumer(de.otto.synapse.translator.MessageFormat messageFormat,
 de.otto.synapse.state.StateRepository<String> stateRepository)

Creates a StatefulMessageConsumer.

The message's Key.partitionKey() is used as the key for repository entries.

Parameters:

messageFormat - the format used to write messages into the snapshot

stateRepository - the StateRepository that is holding the State

Method Details

payloadType

@Nonnull
public Class<String> payloadType()

Returns the expected payload type of events consumed by this EventConsumer.

Specified by:

payloadType in interface de.otto.synapse.consumer.MessageConsumer<String>

Returns:

payload type

keyPattern

@Nonnull
public Pattern keyPattern()

Returns the pattern of message keys accepted by this consumer.

Specified by:

keyPattern in interface de.otto.synapse.consumer.MessageConsumer<String>

Returns:

Pattern

accept

public void accept(de.otto.synapse.message.Message<String> message)

Specified by:

accept in interface Consumer<de.otto.synapse.message.Message<String>>