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The great invocation services rethink of 2002! Rearchitected the remote

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method invocation services and converted everything to the new style.
Could this be my biggest checkin ever?


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1642 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2002-08-14 19:08:01 +00:00
parent 4481c5f835
commit e54a4d41f4
161 changed files with 6083 additions and 2805 deletions
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src/java/com/threerings/crowd/server/LocationProvider.java
+40 -48
View File
@@ -1,16 +1,19 @@
//
// $Id: LocationProvider.java,v 1.15 2002/06/20 22:38:58 mdb Exp $
// $Id: LocationProvider.java,v 1.16 2002/08/14 19:07:49 mdb Exp $
package com.threerings.crowd.server;
import com.threerings.presents.dobj.DObject;
import com.threerings.presents.dobj.RootDObjectManager;
import com.threerings.presents.data.ClientObject;
import com.threerings.presents.server.InvocationException;
import com.threerings.presents.server.InvocationManager;
import com.threerings.presents.server.InvocationProvider;
import com.threerings.presents.server.ServiceFailedException;
import com.threerings.crowd.Log;
import com.threerings.crowd.client.LocationService;
import com.threerings.crowd.data.BodyObject;
import com.threerings.crowd.data.LocationCodes;
import com.threerings.crowd.data.OccupantInfo;
@@ -20,42 +23,38 @@ import com.threerings.crowd.data.PlaceObject;
/**
* This class provides the server end of the location services.
*/
public class LocationProvider extends InvocationProvider
implements LocationCodes
public class LocationProvider
implements LocationCodes, InvocationProvider
{
/**
* Constructs a location provider and registers it with the invocation
* manager to handle location services. This is done automatically by
* the {@link PlaceRegistry}.
* Creates a location provider and prepares it for operation.
*/
public static void init (
InvocationManager invmgr, RootDObjectManager omgr, PlaceRegistry plreg)
public LocationProvider (InvocationManager invmgr, RootDObjectManager omgr,
PlaceRegistry plreg)
{
// we'll need these later
_invmgr = invmgr;
_omgr = omgr;
_plreg = plreg;
// register a location provider instance
invmgr.registerProvider(MODULE_NAME, new LocationProvider());
}
/**
* Processes a request from a client to move to a new place.
* Requests that this client's body be moved to the specified
* location.
*
* @param caller the client object of the client that invoked this
* remotely callable method.
* @param placeId the object id of the place object to which the body
* should be moved.
* @param listener the listener that will be informed of success or
* failure.
*/
public void handleMoveToRequest (
BodyObject source, int invid, int placeId)
public void moveTo (ClientObject caller, int placeId,
LocationService.MoveListener listener)
throws InvocationException
{
try {
// do the move
PlaceConfig config = moveTo(source, placeId);
// and send the response
sendResponse(source, invid, MOVE_SUCCEEDED_RESPONSE, config);
} catch (ServiceFailedException sfe) {
sendResponse(source, invid, MOVE_FAILED_RESPONSE,
sfe.getMessage());
}
// do the move and send the response
listener.moveSucceeded(moveTo((BodyObject)caller, placeId));
}
/**
@@ -68,8 +67,8 @@ public class LocationProvider extends InvocationProvider
* successful for some reason (which will be communicated as an error
* code in the exception's message data).
*/
public static PlaceConfig moveTo (BodyObject source, int placeId)
throws ServiceFailedException
public PlaceConfig moveTo (BodyObject source, int placeId)
throws InvocationException
{
int bodoid = source.getOid();
@@ -78,7 +77,7 @@ public class LocationProvider extends InvocationProvider
if (pmgr == null) {
Log.info("Requested to move to non-existent place " +
"[source=" + source + ", place=" + placeId + "].");
throw new ServiceFailedException(NO_SUCH_PLACE);
throw new InvocationException(NO_SUCH_PLACE);
}
// if they're already in the location they're asking to move to,
@@ -97,26 +96,17 @@ public class LocationProvider extends InvocationProvider
if (!source.acquireLock("moveToLock")) {
// if we're still locked, a previous moveTo request hasn't
// been fully processed
throw new ServiceFailedException(MOVE_IN_PROGRESS);
throw new InvocationException(MOVE_IN_PROGRESS);
}
PlaceObject place = pmgr.getPlaceObject();
try {
place.startTransaction();
source.startTransaction();
// remove them from any previous location
leaveOccupiedPlace(source);
// set the body's new location
source.setLocation(place.getOid());
} finally {
source.commitTransaction();
}
try {
place.startTransaction();
// generate a new occupant info record and add it to the
// target location
OccupantInfo info = pmgr.buildOccupantInfo(source);
@@ -124,11 +114,15 @@ public class LocationProvider extends InvocationProvider
place.addToOccupantInfo(info);
}
// set the body's new location
source.setLocation(place.getOid());
// add the body oid to the place object's occupant list
place.addToOccupants(bodoid);
} finally {
place.commitTransaction();
source.commitTransaction();
}
} finally {
@@ -144,7 +138,7 @@ public class LocationProvider extends InvocationProvider
* Removes the specified body from the place object they currently
* occupy. Does nothing if the body is not currently in a place.
*/
public static void leaveOccupiedPlace (BodyObject source)
public void leaveOccupiedPlace (BodyObject source)
{
int oldloc = source.location;
int bodoid = source.getOid();
@@ -200,18 +194,16 @@ public class LocationProvider extends InvocationProvider
// first remove them from their old place
leaveOccupiedPlace(source);
// then send a move notification
_invmgr.sendNotification(
source.getOid(), MODULE_NAME, MOVE_NOTIFICATION,
new Object[] { new Integer(placeId) });
// then send a forced move notification
LocationSender.forcedMove(source, placeId);
}
/** The invocation manager with which we interoperate. */
protected static InvocationManager _invmgr;
protected InvocationManager _invmgr;
/** The distributed object manager with which we interoperate. */
protected static RootDObjectManager _omgr;
protected RootDObjectManager _omgr;
/** The place registry with which we interoperate. */
protected static PlaceRegistry _plreg;
protected PlaceRegistry _plreg;
}