Package org.marketcetera.marketdata.manual

Class ManualFeedModule

java.lang.Object

org.marketcetera.module.Module

org.marketcetera.marketdata.manual.ManualFeedModule

All Implemented Interfaces:

DataEmitter

public class ManualFeedModule
extends Module
implements DataEmitter

Supplies market data supplied by an upstream module.

Since:

$Release$

Version:

$Id$

Author:

Colin DuPlantis

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	ManualFeedModule.AbstractRequestData	Provides common behavior for data flow requests.
private static class	ManualFeedModule.FeedStatusRequestData	Holds data relevant to a feed status request as part of a module data flow.
private static class	ManualFeedModule.MarketDataRequestData	Holds data relevant to a market data request as part of a module data flow.

Field Summary

Fields

Modifier and Type	Field	Description
private Collection<MarketDataCapabilityBroadcaster>	capabilityBroadcasters	receivers of capabilities of this module
private FeedStatus	feedStatus	current status of the feed
private com.google.common.cache.Cache<DataFlowID,ManualFeedModule.FeedStatusRequestData>	feedStatusRequestDataByDataFlowId	holds feed status requests by data flow id
private static ManualFeedModule	instance	singleton reference value
private org.marketcetera.marketdata.service.MarketDataService	marketDataService	provides access to market data services
private com.google.common.cache.Cache<DataFlowID,ManualFeedModule.MarketDataRequestData>	requestsByDataFlowId	holds market data request info by data flow id
private com.google.common.cache.Cache<String,ManualFeedModule.MarketDataRequestData>	requestsByRequestId	holds data request info keyed by request id
private Collection<MarketDataStatusBroadcaster>	statusBroadcasters	receivers of status of this module

Constructor Summary

Constructors

Constructor	Description
ManualFeedModule(ModuleURN inUrn)	Create a new ManualFeedModule instance.

Method Summary

Modifier and Type	Method	Description
void	cancel(DataFlowID inFlowId, RequestID inRequestID)
private void	doFeedStatusRequest(FeedStatusRequest inPayload, DataRequest inRequest, DataEmitterSupport inSupport)	Execute a feed status request with the given attributes.
private void	doMarketDataRequest(MarketDataRequest inPayload, DataRequest inRequest, DataEmitterSupport inSupport)	Perform the market data request
void	emit(String inRequestId, Collection<Event> inEvents)	Emit the given events to the data flow for the given request id.
void	emit(String inRequestId, Event inEvent)	Emit the given event to the data flow for the given request id.
private void	emit(DataEmitterSupport inDataEmitter, Event inEvent)	Emit the given event to the given data flow.
static ManualFeedModule	getInstance()	Get the instance value.
com.google.common.collect.BiMap<String,MarketDataRequest>	getRequests()	Get the known market data requests indexed by the request id associated with the request.
protected void	preStart()
protected void	preStop()
void	requestData(DataRequest inRequest, DataEmitterSupport inSupport)
private void	updateFeedStatus(FeedStatus inNewStatus)	Update the feed status to the new given value.

Methods inherited from class org.marketcetera.module.Module

getCreated, getLastStartFailure, getLastStopFailure, getStarted, getState, getStopped, getURN, isAutoCreated, isAutoStart

Methods inherited from class java.lang.Object

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

Field Detail

feedStatus

private volatile FeedStatus feedStatus

current status of the feed

feedStatusRequestDataByDataFlowId

private final com.google.common.cache.Cache<DataFlowID,ManualFeedModule.FeedStatusRequestData> feedStatusRequestDataByDataFlowId

holds feed status requests by data flow id

capabilityBroadcasters

@Autowired(required=false)
private Collection<MarketDataCapabilityBroadcaster> capabilityBroadcasters

receivers of capabilities of this module

statusBroadcasters

@Autowired(required=false)
private Collection<MarketDataStatusBroadcaster> statusBroadcasters

receivers of status of this module

marketDataService

@Autowired
private org.marketcetera.marketdata.service.MarketDataService marketDataService

provides access to market data services

requestsByRequestId

private final com.google.common.cache.Cache<String,ManualFeedModule.MarketDataRequestData> requestsByRequestId

holds data request info keyed by request id

requestsByDataFlowId

private final com.google.common.cache.Cache<DataFlowID,ManualFeedModule.MarketDataRequestData> requestsByDataFlowId

holds market data request info by data flow id

instance

private static ManualFeedModule instance

singleton reference value

Constructor Detail

ManualFeedModule

ManualFeedModule(ModuleURN inUrn)

Create a new ManualFeedModule instance.

Parameters:

inUrn - a ModuleURN value

Method Detail

getInstance

public static ManualFeedModule getInstance()

Get the instance value.

Returns:

a ManualFeedModule value

emit

public void emit(String inRequestId,
                 Collection<Event> inEvents)

Emit the given events to the data flow for the given request id.

Parameters:

inRequestId - a String value or null to submit to all data flows

inEvents - a Collection<Event> value

emit

public void emit(String inRequestId,
                 Event inEvent)

Emit the given event to the data flow for the given request id.

Parameters:

inRequestId - a String value or null to submit to all data flows

inEvent - a Event value

getRequests

public com.google.common.collect.BiMap<String,MarketDataRequest> getRequests()

Get the known market data requests indexed by the request id associated with the request.

Returns:

a BiMap<String,MarketDataRequest> value

requestData

public void requestData(DataRequest inRequest,
                        DataEmitterSupport inSupport)
                 throws RequestDataException

Specified by:

requestData in interface DataEmitter

Throws:

RequestDataException

cancel

public void cancel(DataFlowID inFlowId,
                   RequestID inRequestID)

Specified by:

cancel in interface DataEmitter

preStart

protected void preStart()
                 throws ModuleException

Specified by:

preStart in class Module

Throws:

ModuleException

preStop

protected void preStop()
                throws ModuleException

Specified by:

preStop in class Module

Throws:

ModuleException

updateFeedStatus

private void updateFeedStatus(FeedStatus inNewStatus)

Update the feed status to the new given value.

Parameters:

inNewStatus - a FeedStatus value

doFeedStatusRequest

private void doFeedStatusRequest(FeedStatusRequest inPayload,
                                 DataRequest inRequest,
                                 DataEmitterSupport inSupport)

Execute a feed status request with the given attributes.

Parameters:

inPayload - a FeedStatusRequest value

inRequest - a DataRequest value

inSupport - a DataEmitterSupport value

emit

private void emit(DataEmitterSupport inDataEmitter,
                  Event inEvent)

Emit the given event to the given data flow.

Parameters:

inDataEmitter - a DataEmitterSupport value

inEvent - an Event value

doMarketDataRequest

private void doMarketDataRequest(MarketDataRequest inPayload,
                                 DataRequest inRequest,
                                 DataEmitterSupport inSupport)

Perform the market data request

Parameters:

inPayload - a MarketDataRequest value

inRequest - a DataRequest value

inSupport - a DataEmitterSupport value