AfflictionNetworks/narya
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Widening.

Browse Source 
git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4776 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Michael Bayne
2007-07-18 21:58:16 +00:00
parent 6531aa581c
commit b0ec20eff9
1 changed files with 36 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/java/com/threerings/crowd/server/LocationProvider.java
+36 -53
View File
@@ -47,8 +47,7 @@ public class LocationProvider
/**
* Creates a location provider and prepares it for operation.
*/
public LocationProvider (InvocationManager invmgr, RootDObjectManager omgr,
PlaceRegistry plreg)
public LocationProvider (InvocationManager invmgr, RootDObjectManager omgr, PlaceRegistry plreg)
{
// we'll need these later
_invmgr = invmgr;
@@ -57,18 +56,13 @@ public class LocationProvider
}
/**
* Requests that this client's body be moved to the specified
* location.
* 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.
* @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 moveTo (ClientObject caller, int placeId,
LocationService.MoveListener listener)
public void moveTo (ClientObject caller, int placeId, LocationService.MoveListener listener)
throws InvocationException
{
// do the move and send the response
@@ -85,14 +79,13 @@ public class LocationProvider
}
/**
* Moves the specified body from whatever location they currently
* occupy to the location identified by the supplied place id.
* Moves the specified body from whatever location they currently occupy to the location
* identified by the supplied place id.
*
* @return the config object for the new location.
*
* @exception ServiceFaildException thrown if the move was not
* successful for some reason (which will be communicated as an error
* code in the exception's message data).
* @exception ServiceFaildException thrown if the move was not successful for some reason
* (which will be communicated as an error code in the exception's message data).
*/
public PlaceConfig moveTo (BodyObject source, int placeId)
throws InvocationException
@@ -102,18 +95,16 @@ public class LocationProvider
// make sure the place in question actually exists
PlaceManager pmgr = _plreg.getPlaceManager(placeId);
if (pmgr == null) {
Log.info("Requested to move to non-existent place " +
"[who=" + source.who() + ", place=" + placeId + "].");
Log.info("Requested to move to non-existent place [who=" + source.who() +
", place=" + placeId + "].");
throw new InvocationException(NO_SUCH_PLACE);
}
// if they're already in the location they're asking to move to,
// just give them the config because we don't need to update
// anything in distributed object world
// if they're already in the location they're asking to move to, just give them the config
// because we don't need to update anything in distributed object world
if (source.location == placeId) {
Log.debug("Going along with client request to move to where " +
"they already are [source=" + source.who() +
", placeId=" + placeId + "].");
Log.debug("Going along with client request to move to where they already are " +
"[source=" + source.who() + ", placeId=" + placeId + "].");
return pmgr.getConfig();
}
@@ -122,17 +113,14 @@ public class LocationProvider
if ((errmsg = pmgr.ratifyBodyEntry(source)) != null) {
throw new InvocationException(errmsg);
}
// acquire a lock on the body object to ensure that rapid fire
// moveTo requests don't break things
// acquire a lock on the body object to avoid breakage by rapid fire moveTo requests
if (!source.acquireLock("moveToLock")) {
// if we're still locked, a previous moveTo request hasn't
// been fully processed
// if we're still locked, a previous moveTo request hasn't been fully processed
throw new InvocationException(MOVE_IN_PROGRESS);
}
// configure the client accordingly if they're moving to a place
// that uses a custom class loader
// configure the client accordingly if the place uses a custom class loader
PresentsClient client = CrowdServer.clmgr.getClient(source.username);
if (client != null) {
client.setClassLoader(_plreg.getClassLoader(pmgr.getConfig()));
@@ -141,8 +129,8 @@ public class LocationProvider
try {
PlaceObject place = pmgr.getPlaceObject();
// the doubly nested try catch is to prevent failure if one or
// the other of the transactions fails to start
// the doubly nested try catch is to prevent failure if one or the other of the
// transactions fails to start
place.startTransaction();
try {
source.startTransaction();
@@ -150,8 +138,7 @@ public class LocationProvider
// remove them from any previous location
leaveOccupiedPlace(source);
// generate a new occupant info record (which will add
// it to the target location)
// generate a new occinfo record (which will add it to the target location)
pmgr.buildOccupantInfo(source);
// set the body's new location
@@ -168,8 +155,7 @@ public class LocationProvider
}
} finally {
// and finally queue up a lock release event to release the
// lock once all these events are processed
// and finally queue up an event to release the lock once these events are processed
source.releaseLock("moveToLock");
}
@@ -177,8 +163,8 @@ public class LocationProvider
}
/**
* Removes the specified body from the place object they currently
* occupy. Does nothing if the body is not currently in a place.
* Removes the specified body from the place object they currently occupy. Does nothing if the
* body is not currently in a place.
*/
public void leaveOccupiedPlace (BodyObject source)
{
@@ -207,14 +193,13 @@ public class LocationProvider
}
} else {
Log.info("Body's prior location no longer around? " +
"[boid=" + bodoid + ", poid=" + oldloc + "].");
Log.info("Body's prior location no longer around? [boid=" + bodoid +
", poid=" + oldloc + "].");
}
} catch (ClassCastException cce) {
Log.warning("Body claims to occupy non-PlaceObject!? " +
"[boid=" + bodoid + ", poid=" + oldloc +
", error=" + cce + "].");
Log.warning("Body claims to occupy non-PlaceObject!? [boid=" + bodoid +
", poid=" + oldloc + ", error=" + cce + "].");
}
// clear out their location oid
@@ -222,14 +207,12 @@ public class LocationProvider
}
/**
* Forcibly moves the specified body object to the new place. This is
* accomplished by first removing the client from their old location
* and then sending the client a notification, instructing it to move
* to the new location (which it does using the normal moveTo
* service). This has the benefit that the client is removed from
* their old place regardless of whether or not they are cooperating.
* If they choose to ignore the forced move request, they will remain
* in limbo, unable to do much of anything.
* Forcibly moves the specified body object to the new place. This is accomplished by first
* removing the client from their old location and then sending the client a notification,
* instructing it to move to the new location (which it does using the normal moveTo service).
* This has the benefit that the client is removed from their old place regardless of whether
* or not they are cooperating. If they choose to ignore the forced move request, they will
* remain in limbo, unable to do much of anything.
*/
public void moveBody (BodyObject source, int placeId)
{