// **********************************************************************
//
// <copyright>
//
// BBN Technologies
// 10 Moulton Street
// Cambridge, MA 02138
// (617) 873-8000
//
// Copyright (C) BBNT Solutions LLC. All rights reserved.
//
// </copyright>
// **********************************************************************
//
// $Source: /cvs/distapps/openmap/src/corba/com/bbn/openmap/layer/specialist/BufferedCSpecLayer.java,v $
// $RCSfile: BufferedCSpecLayer.java,v $
// $Revision: 1.3.2.2 $
// $Date: 2005/08/09 21:17:53 $
// $Author: dietrick $
//
// **********************************************************************
package com.bbn.openmap.layer.specialist;
/* CORBA */
import org.omg.CORBA.StringHolder;
import com.bbn.openmap.CSpecialist.CProjection;
import com.bbn.openmap.CSpecialist.LLPoint;
import com.bbn.openmap.CSpecialist.Server;
import com.bbn.openmap.CSpecialist.UGraphic;
/* OpenMap */
import com.bbn.openmap.util.Debug;
import com.bbn.openmap.LatLonPoint;
import com.bbn.openmap.proj.Projection;
/**
* BufferedCSpecLayer is a Layer which communicates to CORBA
* Specialists.
*/
public class BufferedCSpecLayer extends CSpecLayer {
// private final static String[] debugTokens = { "debug.cspec" };
// Cached graphics
UGraphic[] graphics = null;
/**
* Default constructor, that sets the MapMouseListener for this
* layer to itself.
*/
public BufferedCSpecLayer() {
super();
}
/**
* perform the getRectangle() call on the specialist.
*
* @param p Projection
* @return UGraphic[] graphic list or null if error
*
*/
protected UGraphic[] getSpecGraphics(Projection p) {
CProjection cproj;
LLPoint ll1, ll2;
StringHolder dynamicArgsHolder;
Server spec = getSpecialist();
if (Debug.debugging("cspec")) {
System.out.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics()");
}
// If we have graphics, return them
if (graphics != null) {
System.out.println("Returning cached graphics");
return graphics;
}
cproj = new CProjection((short) (p.getProjectionType()), new LLPoint(p.getCenter()
.getLatitude(), p.getCenter().getLongitude()), (short) p.getHeight(), (short) p.getWidth(), (int) p.getScale());
// lat-lon "box", (depends on the projection)
LatLonPoint ul = p.getUpperLeft();
LatLonPoint lr = p.getLowerRight();
// ll1 = new LLPoint(ul.getLatitude(), ul.getLongitude());
// ll2 = new LLPoint(lr.getLatitude(), lr.getLongitude());
// Adjust lat/lon for total global area
ll1 = new LLPoint(90.0f, -180.0f);
ll2 = new LLPoint(-90.0f, 180.0f);
// check for cancellation
if (isCancelled()) {
dirtybits |= PREMATURE_FINISH;
if (Debug.debugging("cspec"))
System.out.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics(): aborted.");
return null;
}
// check for null specialist
if (spec == null) {
System.err.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics(): null specialist!");
return null;
}
try {
// Keep the gestures up-to-date
mapGesture.setProjection(p);
// Static Args can't go out null....
String staticArguments = getStaticArgs();
if (staticArguments == null) {
staticArguments = "";
setStaticArgs(staticArguments);
}
// neither can dynamic args
dynamicArgsHolder = new StringHolder(getArgs());
if (dynamicArgsHolder.value == null) {
dynamicArgsHolder.value = "";
}
// call getRectangle();
if (Debug.debugging("cspec")) {
System.out.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics():"
+ " calling getRectangle with projection: " + p
+ " ul=" + ul + " lr=" + lr + " staticArgs=\""
+ staticArguments + "\"" + " dynamicArgs=\""
+ dynamicArgsHolder.value + "\"" + " clientID="
+ clientID);
}
long start = System.currentTimeMillis();
graphics = spec.getRectangle(cproj,
ll1,
ll2,
staticArguments,
dynamicArgsHolder,
selectDist,
wantAreaEvents,
notifyOnChange,
clientID);
long stop = System.currentTimeMillis();
if (Debug.debugging("cspec")) {
System.out.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics(): got "
+ graphics.length + " graphics in "
+ ((stop - start) / 1000d) + " seconds.");
}
} catch (org.omg.CORBA.SystemException e) {
dirtybits |= EXCEPTION;
// don't freak out if we were only interrupted...
if (e.toString().indexOf("InterruptedIOException") != -1) {
System.err.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics(): "
+ "getRectangle() call interrupted!");
} else {
System.err.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics(): "
+ "Caught CORBA exception: " + e);
System.err.println(getName()
+ "|BufferedCSpecLayer.getSpecGraphics(): "
+ "Exception class: " + e.getClass().getName());
e.printStackTrace();
}
// dontcha just love CORBA? reinit later
setSpecialist(null);
if (showDialogs) {
postCORBAErrorMsg("CORBA Exception while getting graphics from\n"
+ getName() + " specialist:\n" + e.getClass().getName());
}
}
return graphics;
}
}