com.bbn.openmap.layer.link
Class LinkServer

java.lang.Object
  java.lang.Thread
      com.bbn.openmap.layer.link.LinkServer

All Implemented Interfaces:

LinkPropertiesConstants, java.lang.Runnable

Direct Known Subclasses:

ShapeLinkServer, TestLinkServer

public class LinkServer
extends java.lang.Thread
implements LinkPropertiesConstants

The Link Server is the object communicating with the LinkLayer. It is launched within its own thread to handle a specific client. If the server is accessing a database or an object that many LinkServers may be contacting, You'll need to ensure some amount of thread safety for the data if the data is being modified by the LinkServer.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

protected Link

link The Link to use to talk to the client.

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Fields inherited from interface com.bbn.openmap.layer.link.LinkPropertiesConstants

LPC_BACKWARD_DIAG_PATTERN, LPC_CENTER_LAT, LPC_CENTER_LONG, LPC_CLEAR_PROPERTIES, LPC_CLEAR_PROPERTIES_CHAR, LPC_CROSS_PATTERN, LPC_DASH, LPC_DASH_DOT, LPC_DASH_DOT_DOT, LPC_DIAG_CROSS_PATTERN, LPC_DOT, LPC_FILLCOLOR, LPC_FILLPATTERN, LPC_FORWARD_DIAG_PATTERN, LPC_GRAPHICID, LPC_HEIGHT, LPC_HIGHLIGHTCOLOR, LPC_HORIZONTAL_PATTERN, LPC_HTML, LPC_INFO, LPC_LATMAX, LPC_LATMIN, LPC_LINECOLOR, LPC_LINESTYLE, LPC_LINEWIDTH, LPC_LINKRASTERIMAGEURL, LPC_LINKROTATION, LPC_LINKTEXTBASELINE, LPC_LINKTEXTFONT, LPC_LINKTEXTSTRING, LPC_LONG_DASH, LPC_LONMAX, LPC_LONMIN, LPC_MESSAGE, LPC_OLD_FILLCOLOR, LPC_OLD_FILLPATTERN, LPC_OLD_HIGHLIGHTCOLOR, LPC_OLD_LINECOLOR, LPC_OLD_LINESTYLE, LPC_OLD_LINEWIDTH, LPC_OLD_LINKTEXTFONT, LPC_OLD_LINKTEXTSTRING, LPC_PROJECTION, LPC_PROPERY_MANAGEMENT_POLICY, LPC_PROPERY_MANAGEMENT_POLICY_CHAR, LPC_REUSE_PROPERTIES, LPC_REUSE_PROPERTIES_CHAR, LPC_SCALE, LPC_SOLID, LPC_SOLID_PATTERN, LPC_TIME, LPC_URL, LPC_VERTICAL_PATTERN, LPC_WIDTH

Constructor Summary

LinkServer()
Constructor used by the LinkServerStarter in using this class as a LinkServerFactory.

LinkServer(java.net.Socket s)
Create child thread that will handle the client.

Method Summary

void	getRectangle(LinkMapRequest query, Link link) An example of how to handle GraphicsLinkQueries.
void	handleClient() handleClient is a method that listens to the link to a client, and responds to requests that are made.
void	handleGesture(LinkActionRequest lar, Link link) An example of how to handle LinkActionRequest.
void	huh(Link link) If a request is not handled, or not understood, reply with this.
void	run() From the Runnable interface.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

link

protected Link link

The Link to use to talk to the client.

Constructor Detail

LinkServer

public LinkServer()

Constructor used by the LinkServerStarter in using this class as a LinkServerFactory.

LinkServer

public LinkServer(java.net.Socket s)

Create child thread that will handle the client.

Parameters:

s - the socket to communicate over.

Method Detail

run

public void run()

From the Runnable interface. The thread starts here...

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

handleClient

public void handleClient()
                  throws java.io.IOException

handleClient is a method that listens to the link to a client, and responds to requests that are made.

Throws:

java.io.IOException

huh

public void huh(Link link)
         throws java.io.IOException

If a request is not handled, or not understood, reply with this.

Throws:

java.io.IOException

getRectangle

public void getRectangle(LinkMapRequest query,
                         Link link)
                  throws java.io.IOException

An example of how to handle GraphicsLinkQueries.

Parameters:

query - the GraphicsLinkQuery, so you can get more information about the parameters of the map screen of the client.

link - the link to communicate the response back to the client.

Throws:

java.io.IOException

handleGesture

public void handleGesture(LinkActionRequest lar,
                          Link link)
                   throws java.io.IOException

An example of how to handle LinkActionRequest.

Parameters:

lar - the LinkActionRequest, so you can get more information about the parameters of the gesture frome the client.

link - the link to communicate the response back to the client.

Throws:

java.io.IOException