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## com.bbn.openmap.layer.link
Class LinkListener

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

All Implemented Interfaces:
  LinkPropertiesConstants, java.lang.Runnable

public class LinkListener
extends java.lang.Thread
implements LinkPropertiesConstants

The Link Listener is the object listening from input from the link server, asynchronously. It is launched within its own thread to handle a specific link layer.

Field Summary
`protected OMGridGenerator` | `currentGenerator` The generator to use with LinkGrid objects.
`protected LinkLayer` | `layer` The LinkLayer to use to do the work.
`protected LinkManager` | `linkManager` The Link to use to talk to the client.
`protected boolean` | `listening` Used by outsiders to find out if the listener should be started.

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
`LinkListener(LinkManager linkManager, LinkLayer layer, OMGridGenerator generator)` Create child thread that will handle the client.

Method Summary
`protected LinkListener` | `getListener()`
`boolean` | `isListening()` A method used by outsiders to figure out if the LinkListener is listening to the server.
`void` | `listen()` listen is a method that listens to the server and responds to requests that are made.
`void` | `run()` From the Runnable interface.
`protected void` | `setListening(boolean value)`
`void` | `startUp()` Use a SwingWorker to launch the listener.

Methods inherited from class java.lang.Thread
`activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Field Detail

### linkManager

    protected LinkManager linkManager

  The Link to use to talk to the client.

### layer

    protected LinkLayer layer

  The LinkLayer to use to do the work.

### currentGenerator

    protected OMGridGenerator currentGenerator

  The generator to use with LinkGrid objects.

### listening

    protected boolean listening

  Used by outsiders to find out if the listener should be started.

Constructor Detail

### LinkListener

    public LinkListener(LinkManager linkManager,
                        LinkLayer layer,
                        OMGridGenerator generator)

  Create child thread that will handle the client.

Parameters:
  `linkManager` - the LinkManager to communicate over.
  `layer` - the LinkLayer to do the work.
  `generator` - the OMGridGenerator.

Method Detail

### isListening

    public boolean isListening()

  A method used by outsiders to figure out if the LinkListener is listening to the server. If false, start() may need to be called to get the listener listening.

### setListening

    protected void setListening(boolean value)

### getListener

    protected LinkListener getListener()

### startUp

    public void startUp()

  Use a SwingWorker to launch the listener. Calls start() on the LinkListener from a new thread.

### run

    public void run()

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

  Specified by:
    `run` in interface `java.lang.Runnable`

### listen

    public void listen()
                throws java.io.IOException

  listen is a method that listens to the server and responds to requests that are made.

  Throws:
    `java.io.IOException`

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