Package io.debezium.connector.oracle.olr.client

Class OlrNetworkClient

java.lang.Object
io.debezium.connector.oracle.olr.client.OlrNetworkClient
public class OlrNetworkClient extends Object
An OpenLogReplicator network client that communicates using JSON streaming payloads.
Author:
Chris Cranford

  • Field Details

    • LOGGER

      private static final org.slf4j.Logger LOGGER

    • mapper

      private final com.fasterxml.jackson.databind.ObjectMapper mapper

    • hostName

      private final String hostName

    • port

      private final int port

    • sourceName

      private final String sourceName

    • channel

      private SocketChannel channel

    • skipToStartScn

      private boolean skipToStartScn

    • startScn

      private Scn startScn

    • prevScn

      private long prevScn

  • Constructor Details

    • OlrNetworkClient

      public OlrNetworkClient(OracleConnectorConfig connectorConfig)
      Create the OpenLogReplicator network client.
      Parameters:
      connectorConfig - connector configuration

  • Method Details

    • connect

      public boolean connect(Scn scn, Long index)
      Connect to the OpenLogReplicator process.
      Parameters:
      scn - the checkpoint commit to begin streaming from
      index - the checkpoint commit sequence index to begin streaming from
      Returns:
      true if the connection was established, false if the connection failed

    • disconnect

      public void disconnect()
      Disconnect from the OpenLogReplicator network service.

    • isConnected

      public boolean isConnected()
      Returns whether the network client is connected to the OpenLogReplicator process.
      Returns:
      true if the client is connected, false otherwise.

    • readEvent

      public StreamingEvent readEvent() throws OlrNetworkClientException
      A blocking call that reads the next streaming event from the OpenLogReplicator process.
      Returns:
      the streaming event
      Throws:
      OlrNetworkClientException

    • confirm

      public void confirm(Scn scn, Long index)

    • readNextEventWithStartScnSkip

      private StreamingEvent readNextEventWithStartScnSkip()

    • readNextEvent

      private StreamingEvent readNextEvent()

    • confirm

      private void confirm(long newScn, Long index)

    • startFrom

      private boolean startFrom(Scn scn, Long index)

    • createRequest

      private OpenLogReplicatorProtocol.RedoRequest.Builder createRequest(OpenLogReplicatorProtocol.RequestCode requestCode)

    • readResponse

      private OpenLogReplicatorProtocol.RedoResponse readResponse()

    • read

      private ByteBuffer read()

    • send

      private int send(OpenLogReplicatorProtocol.RedoRequest request)

    • fillBuffer

      private void fillBuffer(ByteBuffer buffer)