Package de.otto.synapse.journal

Class JournalingInterceptor

java.lang.Object
de.otto.synapse.journal.JournalingInterceptor
All Implemented Interfaces:
MessageInterceptor
public class JournalingInterceptor
extends java.lang.Object
implements MessageInterceptor
Interceptor used to add the messages of event-sourced entities to a Journal.

  • Constructor Summary

    Constructors
    Constructor Description
    JournalingInterceptor​(java.lang.String channelName, Journal journal)
    Creates a JournalingInterceptor for a channel, using the given Journal.

  • Method Summary

    Modifier and Type Method Description
    Journal getJournal()  
    TextMessage intercept​(TextMessage message)
    Intercept a message and return the same message, a modified version of the incoming message, or null, if the message should be filtered out and dropped by the AbstractMessageEndpoint

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • JournalingInterceptor

      public JournalingInterceptor​(@Nonnull java.lang.String channelName, @Nonnull Journal journal)
      Creates a JournalingInterceptor for a channel, using the given Journal.
      Parameters:
      channelName - the name of the journaled channel
      journal - the Journal used to record messages for the channel
      Throws:
      java.lang.IllegalStateException - if the Journal's MessageStore does not provide an Index.JOURNAL_KEY

  • Method Details

    • intercept

      @Nonnull public TextMessage intercept​(@Nonnull TextMessage message)
      Description copied from interface: MessageInterceptor
      Intercept a message and return the same message, a modified version of the incoming message, or null, if the message should be filtered out and dropped by the AbstractMessageEndpoint
      Specified by:
      intercept in interface MessageInterceptor
      Parameters:
      message - the channel-layer message with payload-type beeing a String
      Returns:
      intercepted version of the message, or null if the message should be dropped.

    • getJournal

      public Journal getJournal()