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High-Performance FIX Gateway
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/*
* Copyright 2020 Monotonic Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package uk.co.real_logic.artio.ilink;
import iLinkBinary.*;
import io.aeron.logbuffer.ControlledFragmentHandler.Action;
import org.agrona.DirectBuffer;
import uk.co.real_logic.artio.DebugLogger;
import uk.co.real_logic.artio.fixp.AbstractFixPParser;
import uk.co.real_logic.artio.fixp.InternalFixPContext;
import uk.co.real_logic.artio.fixp.SimpleOpenFramingHeader;
import uk.co.real_logic.artio.library.InternalILink3Connection;
import java.util.function.Consumer;
import static uk.co.real_logic.artio.LogTag.FIXP_SESSION;
import static uk.co.real_logic.artio.fixp.SimpleOpenFramingHeader.SOFH_LENGTH;
public class ILink3Parser extends AbstractFixPParser
{
private final MessageHeaderDecoder header = new MessageHeaderDecoder();
private final NegotiationResponse501Decoder negotiationResponse = new NegotiationResponse501Decoder();
private final NegotiationReject502Decoder negotiationReject = new NegotiationReject502Decoder();
private final EstablishmentAck504Decoder establishmentAck = new EstablishmentAck504Decoder();
private final EstablishmentReject505Decoder establishmentReject = new EstablishmentReject505Decoder();
private final Terminate507Decoder terminate = new Terminate507Decoder();
private final Sequence506Decoder sequence = new Sequence506Decoder();
private final NotApplied513Decoder notApplied = new NotApplied513Decoder();
private final RetransmitReject510Decoder retransmitReject = new RetransmitReject510Decoder();
private final Retransmission509Decoder retransmission = new Retransmission509Decoder();
private final Consumer negotiationResponseAppendTo = negotiationResponse::appendTo;
private final Consumer negotiationRejectAppendTo = negotiationReject::appendTo;
private final Consumer establishmentAckAppendTo = establishmentAck::appendTo;
private final Consumer establishmentRejectAppendTo = establishmentReject::appendTo;
private final Consumer terminateAppendTo = terminate::appendTo;
private final Consumer sequenceAppendTo = sequence::appendTo;
private final Consumer notAppliedAppendTo = notApplied::appendTo;
private final Consumer retransmitRejectAppendTo = retransmitReject::appendTo;
private final Consumer retransmissionAppendTo = retransmission::appendTo;
private final InternalILink3Connection handler;
public ILink3Parser(final ILink3Connection handler)
{
this.handler = (InternalILink3Connection)handler;
}
public int templateId(final DirectBuffer buffer, final int offset)
{
header.wrap(buffer, offset);
return header.templateId();
}
public int blockLength(final DirectBuffer buffer, final int offset)
{
header.wrap(buffer, offset);
return header.blockLength();
}
public int version(final DirectBuffer buffer, final int offset)
{
header.wrap(buffer, offset);
return header.version();
}
public InternalFixPContext lookupContext(
final DirectBuffer messageBuffer,
final int messageOffset,
final int messageLength)
{
return Ilink3Protocol.unsupported();
}
public long sessionId(final DirectBuffer buffer, final int offset)
{
return Ilink3Protocol.unsupported();
}
public Action onMessage(final DirectBuffer buffer, final int start)
{
int offset = start + SOFH_LENGTH;
header.wrap(buffer, offset);
final int templateId = header.templateId();
final int blockLength = header.blockLength();
final int version = header.version();
offset += MessageHeaderEncoder.ENCODED_LENGTH;
switch (templateId)
{
case NegotiationResponse501Decoder.TEMPLATE_ID:
{
return onNegotiationResponse(buffer, offset, blockLength, version);
}
case NegotiationReject502Decoder.TEMPLATE_ID:
{
return onNegotiationReject(buffer, offset, blockLength, version);
}
case EstablishmentAck504Decoder.TEMPLATE_ID:
{
return onEstablishmentAck(buffer, offset, blockLength, version);
}
case EstablishmentReject505Decoder.TEMPLATE_ID:
{
return onEstablishmentReject(buffer, offset, blockLength, version);
}
case Terminate507Decoder.TEMPLATE_ID:
{
return onTerminate(buffer, offset, blockLength, version);
}
case Sequence506Decoder.TEMPLATE_ID:
{
return onSequence(buffer, offset, blockLength, version);
}
case NotApplied513Decoder.TEMPLATE_ID:
{
return onNotApplied(buffer, offset, blockLength, version);
}
case RetransmitReject510Decoder.TEMPLATE_ID:
{
return onRetransmitReject(buffer, offset, blockLength, version);
}
case Retransmission509Decoder.TEMPLATE_ID:
{
return onRetransmission(buffer, offset, blockLength, version);
}
default:
{
final int sofhMessageSize = SimpleOpenFramingHeader.readSofhMessageSize(buffer, start);
return handler.onMessage(buffer, offset, templateId, blockLength, version, sofhMessageSize);
}
}
}
private Action onRetransmission(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
retransmission.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", retransmissionAppendTo);
return handler.onRetransmission(
retransmission.uUID(),
retransmission.lastUUID(),
retransmission.requestTimestamp(),
retransmission.fromSeqNo(),
retransmission.msgCount());
// retransmitReject.splitMsg()
}
private Action onRetransmitReject(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
retransmitReject.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", retransmitRejectAppendTo);
return handler.onRetransmitReject(
retransmitReject.reason(),
retransmitReject.uUID(),
retransmitReject.lastUUID(),
retransmitReject.requestTimestamp(),
retransmitReject.errorCodes());
// retransmitReject.splitMsg()
}
private Action onNegotiationResponse(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
negotiationResponse.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", negotiationResponseAppendTo);
return handler.onNegotiationResponse(
negotiationResponse.uUID(),
negotiationResponse.requestTimestamp(),
negotiationResponse.secretKeySecureIDExpiration(),
// negotiationResponse.faultToleranceIndicator()
// negotiationResponse.splitMsg()
negotiationResponse.previousSeqNo(),
negotiationResponse.previousUUID());
}
private Action onNegotiationReject(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
negotiationReject.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", negotiationRejectAppendTo);
return handler.onNegotiationReject(
negotiationReject.reason(),
negotiationReject.uUID(),
negotiationReject.requestTimestamp(),
negotiationReject.errorCodes());
// negotiationResponse.faultToleranceIndicator()
// negotiationResponse.splitMsg());
}
private Action onEstablishmentAck(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
establishmentAck.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", establishmentAckAppendTo);
return handler.onEstablishmentAck(
establishmentAck.uUID(),
establishmentAck.requestTimestamp(),
establishmentAck.nextSeqNo(),
establishmentAck.previousSeqNo(),
establishmentAck.previousUUID(),
establishmentAck.keepAliveInterval(),
establishmentAck.secretKeySecureIDExpiration());
// establishmentAck.faultToleranceIndicator()
// establishmentAck.splitMsg()
}
private Action onEstablishmentReject(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
establishmentReject.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", establishmentRejectAppendTo);
return handler.onEstablishmentReject(
establishmentReject.reason(),
establishmentReject.uUID(),
establishmentReject.requestTimestamp(),
establishmentReject.nextSeqNo(),
establishmentReject.errorCodes());
// establishmentReject.faultToleranceIndicator()
// establishmentReject.splitMsg()
}
private Action onTerminate(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
terminate.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", terminateAppendTo);
return handler.onTerminate(
terminate.reason(),
terminate.uUID(),
terminate.requestTimestamp(),
terminate.errorCodes());
// terminate.splitMsg()
}
private Action onSequence(
final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
sequence.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", sequenceAppendTo);
return handler.onSequence(
sequence.uUID(),
sequence.nextSeqNo(),
sequence.faultToleranceIndicator(),
sequence.keepAliveIntervalLapsed());
}
private Action onNotApplied(final DirectBuffer buffer, final int offset, final int blockLength, final int version)
{
notApplied.wrap(buffer, offset, blockLength, version);
DebugLogger.logSbeDecoder(FIXP_SESSION, "> ", notAppliedAppendTo);
return handler.onNotApplied(
notApplied.uUID(),
notApplied.fromSeqNo(),
notApplied.msgCount());
// notApplied.splitMsg()
}
public int retransmissionTemplateId()
{
return Retransmission509Decoder.TEMPLATE_ID;
}
public boolean isRetransmittedMessage(final DirectBuffer buffer, final int offset)
{
return true;
}
}
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