public static void main(String args[]) {
UAN uan = null;
UAL ual = null;
if (System.getProperty("uan") != null) {
uan = new UAN(System.getProperty("uan"));
ServiceFactory.getTheater();
RunTime.receivedUniversalActor();
}
if (System.getProperty("ual") != null) {
ual = new UAL(System.getProperty("ual"));
if (uan == null) {
System.err.println("Actor Creation Error:");
System.err.println(" uan: " + uan);
System.err.println(" ual: " + ual);
System.err.println(" Identifier: " + System.getProperty("identifier"));
System.err.println(" Cannot specify an actor to have a ual at runtime without a uan.");
System.err.println(
" To give an actor a specific ual at runtime, use the identifier system property.");
System.exit(0);
}
RunTime.receivedUniversalActor();
}
if (System.getProperty("identifier") != null) {
if (ual != null) {
System.err.println("Actor Creation Error:");
System.err.println(" uan: " + uan);
System.err.println(" ual: " + ual);
System.err.println(" Identifier: " + System.getProperty("identifier"));
System.err.println(
" Cannot specify an identifier and a ual with system properties when creating an actor.");
System.exit(0);
}
ual = new UAL(ServiceFactory.getTheater().getLocation() + System.getProperty("identifier"));
}
RunTime.receivedMessage();
CrazyMigration instance = (CrazyMigration) new CrazyMigration(uan, ual, null).construct();
gc.WeakReference instanceRef = new gc.WeakReference(uan, ual);
{
Object[] _arguments = {args};
// preAct() for local actor creation
// act() for remote actor creation
if (ual != null && !ual.getLocation().equals(ServiceFactory.getTheater().getLocation())) {
instance.send(new Message(instanceRef, instanceRef, "act", _arguments, false));
} else {
instance.send(new Message(instanceRef, instanceRef, "preAct", _arguments, false));
}
}
RunTime.finishedProcessingMessage();
}
public JoinDirector(UAN __uan, UAL __ual) {
if (__ual != null && !__ual.getLocation().equals(ServiceFactory.getTheater().getLocation())) {
createRemotely(__uan, __ual, "salsa.language.JoinDirector");
} else {
State state = new State(__uan, __ual);
state.updateSelf(this);
ServiceFactory.getNaming().setEntry(state.getUAN(), state.getUAL(), state);
if (getUAN() != null) ServiceFactory.getNaming().update(state.getUAN(), state.getUAL());
}
}
public CrazyMigration(UAN __uan, UAL __ual, Object obj) {
// decide the type of sourceActor
// if obj is null, the actor must be the startup actor.
// if obj is an actorReference, this actor is created by a remote actor
if (obj instanceof UniversalActor.State || obj == null) {
UniversalActor.State sourceActor;
if (obj != null) {
sourceActor = (UniversalActor.State) obj;
} else {
sourceActor = null;
}
// remote creation message sent to a remote system service.
if (__ual != null && !__ual.getLocation().equals(ServiceFactory.getTheater().getLocation())) {
WeakReference sourceRef;
if (sourceActor != null && sourceActor.getUAL() != null) {
sourceRef = new WeakReference(sourceActor.getUAN(), sourceActor.getUAL());
} else {
sourceRef = null;
}
if (sourceActor != null) {
if (__uan != null) {
sourceActor.getActorMemory().getForwardList().putReference(__uan);
} else if (__ual != null) {
sourceActor.getActorMemory().getForwardList().putReference(__ual);
}
// update the source of this actor reference
setSource(sourceActor.getUAN(), sourceActor.getUAL());
activateGC();
}
createRemotely(__uan, __ual, "tests.distributed.CrazyMigration", sourceRef);
}
// local creation
else {
State state = new State(__uan, __ual);
// assume the reference is weak
muteGC();
// the source actor is the startup actor
if (sourceActor == null) {
state.getActorMemory().getInverseList().putInverseReference("rmsp://me");
}
// the souce actor is a normal actor
else if (sourceActor instanceof UniversalActor.State) {
// this reference is part of garbage collection
activateGC();
// update the source of this actor reference
setSource(sourceActor.getUAN(), sourceActor.getUAL());
/* Garbage collection registration:
* register 'this reference' in sourceActor's forward list @
* register 'this reference' in the forward acquaintance's inverse list
*/
String inverseRefString = null;
if (sourceActor.getUAN() != null) {
inverseRefString = sourceActor.getUAN().toString();
} else if (sourceActor.getUAL() != null) {
inverseRefString = sourceActor.getUAL().toString();
}
if (__uan != null) {
sourceActor.getActorMemory().getForwardList().putReference(__uan);
} else if (__ual != null) {
sourceActor.getActorMemory().getForwardList().putReference(__ual);
} else {
sourceActor.getActorMemory().getForwardList().putReference(state.getUAL());
}
// put the inverse reference information in the actormemory
if (inverseRefString != null)
state.getActorMemory().getInverseList().putInverseReference(inverseRefString);
}
state.updateSelf(this);
ServiceFactory.getNaming().setEntry(state.getUAN(), state.getUAL(), state);
if (getUAN() != null) ServiceFactory.getNaming().update(state.getUAN(), state.getUAL());
}
}
// creation invoked by a remote message
else if (obj instanceof ActorReference) {
ActorReference sourceRef = (ActorReference) obj;
State state = new State(__uan, __ual);
muteGC();
state.getActorMemory().getInverseList().putInverseReference("rmsp://me");
if (sourceRef.getUAN() != null) {
state.getActorMemory().getInverseList().putInverseReference(sourceRef.getUAN());
} else if (sourceRef.getUAL() != null) {
state.getActorMemory().getInverseList().putInverseReference(sourceRef.getUAL());
}
state.updateSelf(this);
ServiceFactory.getNaming().setEntry(state.getUAN(), state.getUAL(), state);
if (getUAN() != null) ServiceFactory.getNaming().update(state.getUAN(), state.getUAL());
}
}