Package de.otto.synapse.compaction.s3

Class SnapshotMessageConsumer

  • All Implemented Interfaces:
    de.otto.synapse.consumer.MessageConsumer<java.lang.String>, java.util.function.Consumer<de.otto.synapse.message.Message<java.lang.String>>
    public class SnapshotMessageConsumer
extends java.lang.Object
implements de.otto.synapse.consumer.MessageConsumer<java.lang.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<java.lang.String> stateRepository)
      Creates a StatefulMessageConsumer.

    • Method Summary

      Modifier and Type Method Description
      void accept​(de.otto.synapse.message.Message<java.lang.String> message)  
      java.util.regex.Pattern keyPattern()
      Returns the pattern of message keys accepted by this consumer.
      java.lang.Class<java.lang.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 Detail

      • SnapshotMessageConsumer

        public SnapshotMessageConsumer​(de.otto.synapse.translator.MessageFormat messageFormat,
                               de.otto.synapse.state.StateRepository<java.lang.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 Detail

      • payloadType

        @Nonnull
public java.lang.Class<java.lang.String> payloadType()
        Returns the expected payload type of events consumed by this EventConsumer.
        Specified by:
        payloadType in interface de.otto.synapse.consumer.MessageConsumer<java.lang.String>
        Returns:
        payload type

      • keyPattern

        @Nonnull
public java.util.regex.Pattern keyPattern()
        Returns the pattern of message keys accepted by this consumer.
        Specified by:
        keyPattern in interface de.otto.synapse.consumer.MessageConsumer<java.lang.String>
        Returns:
        Pattern

      • accept

        public void accept​(de.otto.synapse.message.Message<java.lang.String> message)
        Specified by:
        accept in interface java.util.function.Consumer<de.otto.synapse.message.Message<java.lang.String>>