/**
* Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
*
* Please see distribution for license.
*/
package com.opengamma.livedata.server;
import org.fudgemsg.FudgeMsg;
import org.fudgemsg.FudgeMsgEnvelope;
import org.fudgemsg.mapping.FudgeDeserializer;
import org.fudgemsg.mapping.FudgeSerializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.transaction.annotation.Transactional;
import com.opengamma.livedata.msg.LiveDataSubscriptionRequest;
import com.opengamma.livedata.msg.LiveDataSubscriptionResponseMsg;
import com.opengamma.transport.FudgeRequestReceiver;
import com.opengamma.util.ArgumentChecker;
/**
* Receives market data subscription requests from clients.
*/
public class SubscriptionRequestReceiver implements FudgeRequestReceiver {
/** Logger. */
private static final Logger s_logger = LoggerFactory.getLogger(SubscriptionRequestReceiver.class);
/**
* The underlying server.
*/
private final StandardLiveDataServer _liveDataServer;
/**
* Creates an instance wrapping an underlying server.
*
* @param liveDataServer the server, not null
*/
public SubscriptionRequestReceiver(StandardLiveDataServer liveDataServer) {
ArgumentChecker.notNull(liveDataServer, "liveDataServer");
_liveDataServer = liveDataServer;
}
//-------------------------------------------------------------------------
/**
* Gets the underlying server.
*
* @return the server, not null
*/
public StandardLiveDataServer getLiveDataServer() {
return _liveDataServer;
}
//-------------------------------------------------------------------------
@Override
@Transactional
public FudgeMsg requestReceived(FudgeDeserializer deserializer, FudgeMsgEnvelope requestEnvelope) {
try {
FudgeMsg requestFudgeMsg = requestEnvelope.getMessage();
LiveDataSubscriptionRequest subscriptionRequest = LiveDataSubscriptionRequest.fromFudgeMsg(deserializer, requestFudgeMsg);
s_logger.debug("Received subscription request {}", subscriptionRequest);
LiveDataSubscriptionResponseMsg subscriptionResponse = getLiveDataServer().subscriptionRequestMade(subscriptionRequest);
s_logger.debug("Sending subscription response {}", subscriptionResponse);
FudgeMsg responseFudgeMsg = subscriptionResponse.toFudgeMsg(new FudgeSerializer(deserializer.getFudgeContext()));
return responseFudgeMsg;
} catch (RuntimeException e) {
s_logger.error("Unexpected exception when processing subscription request", e);
throw e;
}
}
}