Package org.marketcetera.marketdata.yahoo

Class YahooFeed

java.lang.Object

org.marketcetera.marketdata.AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

org.marketcetera.marketdata.yahoo.YahooFeed

All Implemented Interfaces:

IFeedComponent, MarketDataFeed<YahooFeedToken,YahooFeedCredentials>, YahooFeedServices, org.springframework.context.Lifecycle

class YahooFeed
extends AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>
implements YahooFeedServices

Market data feed implementation for the Yahoo market data supplier.

Since:

2.1.4

Version:

$Id$

Author:

Colin DuPlantis

Nested Class Summary

Nested classes/interfaces inherited from interface org.marketcetera.marketdata.IFeedComponent

IFeedComponent.FeedType

Field Summary

Fields

Modifier and Type	Field	Description
private static Set<AssetClass>	assetClasses	asset classes supported by this adapter
private static Set<Capability>	capabilities	capabilities of this adapter
private YahooClient	client	client implementation to use
private AtomicLong	counter	counter used to count requests
private int	refreshInterval	default interval at which to refresh the market data
private Map<String,YahooRequest>	requests	stores the active requests

Fields inherited from class org.marketcetera.marketdata.AbstractMarketDataFeed

DATAFEED_STATUS_MESSAGES, DATAFEED_TRACE_MESSAGES, MARKETDATA_SIMULATION_KEY

Constructor Summary

Constructors

Constructor	Description
YahooFeed(String inProviderName, YahooClientFactory inFactory)	Create a new YahooFeed instance.

Method Summary

Modifier and Type	Method	Description
protected void	doCancel(String inHandle)
void	doDataReceived(String inHandle, Object inData)	Indicates receipt of market data.
protected boolean	doLogin(YahooFeedCredentials inCredentials)
protected void	doLogout()
protected List<String>	doMarketDataRequest(List<YahooRequest> inRequests)
private String	generateHandle()	Generates a request handle.
protected YahooFeedToken	generateToken(MarketDataFeedTokenSpec inTokenSpec)
Set<Capability>	getCapabilities()
protected YahooFeedEventTranslator	getEventTranslator()
protected YahooFeedMessageTranslator	getMessageTranslator()
int	getRefreshInterval()	Gets the interval at which to refresh market data requests.
(package private) long	getRequestCounter()	Gets the current request counter.
Set<AssetClass>	getSupportedAssetClasses()
protected boolean	isLoggedIn()
(package private) void	resetCounter()	Resets the request counter.
(package private) void	setRefreshInterval(int inRefreshInterval)	Sets the refresh interval for retrieving market data.

Methods inherited from class org.marketcetera.marketdata.AbstractMarketDataFeed

addFeedComponentListener, afterDoExecute, beforeDoExecute, dataReceived, doInitialize, doReconnectToFeed, execute, getFeedStatus, getFeedType, getID, getProviderName, getTimeout, isRunning, login, logout, removeFeedComponentListener, setFeedStatus, start, stop

Methods inherited from class java.lang.Object

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

Field Detail

refreshInterval

private volatile int refreshInterval

default interval at which to refresh the market data

assetClasses

private static final Set<AssetClass> assetClasses

asset classes supported by this adapter

capabilities

private static final Set<Capability> capabilities

capabilities of this adapter

requests

private final Map<String,YahooRequest> requests

stores the active requests

counter

private final AtomicLong counter

counter used to count requests

client

private final YahooClient client

client implementation to use

Constructor Detail

YahooFeed

YahooFeed(String inProviderName,
          YahooClientFactory inFactory)
   throws NoMoreIDsException

Create a new YahooFeed instance.

Parameters:

inProviderName - a String value

Throws:

NoMoreIDsException - if the feed cannot be constructed

Method Detail

getCapabilities

public Set<Capability> getCapabilities()

Specified by:

getCapabilities in interface MarketDataFeed<YahooFeedToken,YahooFeedCredentials>

getSupportedAssetClasses

public Set<AssetClass> getSupportedAssetClasses()

Specified by:

getSupportedAssetClasses in interface MarketDataFeed<YahooFeedToken,YahooFeedCredentials>

doDataReceived

public void doDataReceived(String inHandle,
                           Object inData)

Description copied from interface: YahooFeedServices

Indicates receipt of market data.

Specified by:

doDataReceived in interface YahooFeedServices

Parameters:

inHandle - a String value

inData - an Object value

getRefreshInterval

public int getRefreshInterval()

Description copied from interface: YahooFeedServices

Gets the interval at which to refresh market data requests.

Specified by:

getRefreshInterval in interface YahooFeedServices

Returns:

an int value in ms

resetCounter

void resetCounter()

Resets the request counter.

getRequestCounter

long getRequestCounter()

Gets the current request counter.

Returns:

a long value

setRefreshInterval

void setRefreshInterval(int inRefreshInterval)

Sets the refresh interval for retrieving market data.

Changing this value takes effect immediately.

Parameters:

inRefreshInterval - an int value

doCancel

protected void doCancel(String inHandle)

Specified by:

doCancel in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

doLogin

protected boolean doLogin(YahooFeedCredentials inCredentials)

Specified by:

doLogin in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

doLogout

protected void doLogout()

Specified by:

doLogout in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

isLoggedIn

protected boolean isLoggedIn()

Specified by:

isLoggedIn in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

doMarketDataRequest

protected List<String> doMarketDataRequest(List<YahooRequest> inRequests)
                                    throws FeedException

Specified by:

doMarketDataRequest in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

Throws:

FeedException

generateToken

protected YahooFeedToken generateToken(MarketDataFeedTokenSpec inTokenSpec)
                                throws FeedException

Specified by:

generateToken in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

Throws:

FeedException

getEventTranslator

protected YahooFeedEventTranslator getEventTranslator()

Specified by:

getEventTranslator in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

getMessageTranslator

protected YahooFeedMessageTranslator getMessageTranslator()

Specified by:

getMessageTranslator in class AbstractMarketDataFeed<YahooFeedToken,YahooFeedCredentials,YahooFeedMessageTranslator,YahooFeedEventTranslator,List<YahooRequest>,YahooFeed>

generateHandle

private String generateHandle()

Generates a request handle.

Returns:

a String value