sunw.demo.quote
Class QuoteServerImpl
java.lang.Object
|
+--java.rmi.server.RemoteObject
|
+--java.rmi.server.RemoteServer
|
+--java.rmi.server.UnicastRemoteObject
|
+--sunw.demo.quote.QuoteServerImpl
- public class QuoteServerImpl
- extends java.rmi.server.UnicastRemoteObject
- implements QuoteServer
The QuoteServer implementation. The QuoteServer object
starts a thread that polls a quote source and delivers
QuoteEvents to QuoteListeners.
Stock information can be collected from one of two sources: "Local"
or "Yahoo". The latter is a real (delayed) data feed that reports
quotes in a format that can be easily parsed. The "Local" quote
source is just a random number generator. The advantage of
the local source is that it can produce quotes quickly, this
can make demos more interesting.
- See Also:
- Serialized Form
Fields inherited from class java.rmi.server.RemoteObject |
ref |
Methods inherited from class java.rmi.server.UnicastRemoteObject |
clone,
exportObject,
exportObject,
exportObject,
unexportObject |
Methods inherited from class java.rmi.server.RemoteServer |
getClientHost,
getLog,
setLog |
Methods inherited from class java.rmi.server.RemoteObject |
equals,
getRef,
hashCode,
toString,
toStub |
Methods inherited from class java.lang.Object |
finalize,
getClass,
notify,
notifyAll,
wait,
wait,
wait |
getQuoteEventRate
public int getQuoteEventRate()
- Returns:
- the quote source polling rate in seconds
setQuoteEventRate
public void setQuoteEventRate(int x)
- Sets the quote source polling rate.
- Parameters:
x
- the polling rate in seconds
addQuoteListener
public void addQuoteListener(QuoteListener x)
throws java.rmi.RemoteException
- The specified QuoteListeners quoteChanged method will
be called each time new quote data is available. The QuoteListener
object is added to a list of QuoteListeners managed by
this server, it can be removed with removeQuoteListener.
- Specified by:
- addQuoteListener in interface QuoteServer
- Parameters:
l
- the QuoteListener- See Also:
removeQuoteListener(sunw.demo.quote.QuoteListener)
removeQuoteListener
public void removeQuoteListener(QuoteListener x)
throws java.rmi.RemoteException
- Remove this QuoteListener from the servers internal list. If the
QuoteListener isn't on the list, silently do nothing.
- Specified by:
- removeQuoteListener in interface QuoteServer
- Parameters:
l
- the QuoteListener- See Also:
addQuoteListener(sunw.demo.quote.QuoteListener)
getHttpProxy
public HttpProxy getHttpProxy()
throws java.rmi.RemoteException
- The HTTP proxy host and port number are stored in the System
property list under "http.proxyHost" and "http.proxyPort".
We just combine the two values into a single object here.
- Specified by:
- getHttpProxy in interface QuoteServer
- Returns:
- the HTTP proxy host and port number for this server
- See Also:
setHttpProxy(sunw.demo.quote.HttpProxy)
setHttpProxy
public void setHttpProxy(HttpProxy x)
throws java.rmi.RemoteException
- If the specified host is valid and the port number is
positive then set the System properties: "http.proxyHost"
and "http.proxyPort". Otherwise throw a RemoteException.
The HTTP proxy values only matter if the quote source is
"Yahoo", i.e. if we're going to the internet for data.
- Specified by:
- setHttpProxy in interface QuoteServer
- Parameters:
x
- the new values for host and port- See Also:
getHttpProxy()
getQuoteSource
public java.lang.String getQuoteSource()
throws java.rmi.RemoteException
- Returns:
- a string that represents the source for quote data
- See Also:
setQuoteSource(java.lang.String)
setQuoteSource
public void setQuoteSource(java.lang.String x)
throws java.rmi.RemoteException
- Specify where quote data will come from. If quoteSource is "Local"
then the sunw.demo.LocalQuote is used, it generates moderately
random data. If quoteSource is "Yahoo" then the sunw.demo.YahooQuote
class is used, it collects quote data from the YahooQuote web site.
- Parameters:
x
- must be "Yahoo" or "Local"- See Also:
getQuoteSource()