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ONOS-1981: Move expensive work off of event loop thread

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Change-Id: I200d9b727a7d501d5b055574ddb0907b8f4756a2
This commit is contained in:
Madan Jampani 2015-05-29 14:06:27 -07:00 committed by Gerrit Code Review
parent 7d02c081cd
commit 328371db2d
1 changed files with 54 additions and 44 deletions
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98
core/net/src/main/java/org/onosproject/net/device/impl/DeviceManager.java
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@ -613,56 +613,66 @@ public class DeviceManager
} }
} }
private void handleMastershipEvent(MastershipEvent event) {
if (event.type() != MastershipEvent.Type.MASTER_CHANGED) {
// Don't care if backup list changed.
return;
}
final DeviceId did = event.subject();
// myRole suggested by MastershipService
MastershipRole myNextRole;
if (localNodeId.equals(event.roleInfo().master())) {
// confirm latest info
MastershipTerm term = termService.getMastershipTerm(did);
final boolean iHaveControl = term != null && localNodeId.equals(term.master());
if (iHaveControl) {
deviceClockProviderService.setMastershipTerm(did, term);
myNextRole = MASTER;
} else {
myNextRole = STANDBY;
}
} else if (event.roleInfo().backups().contains(localNodeId)) {
myNextRole = STANDBY;
} else {
myNextRole = NONE;
}
final boolean isReachable = isReachable(did);
if (!isReachable) {
// device is not connected to this node
if (myNextRole != NONE) {
log.warn("Node was instructed to be {} role for {}, "
+ "but this node cannot reach the device. "
+ "Relinquishing role. ",
myNextRole, did);
mastershipService.relinquishMastership(did);
}
return;
}
// device is connected to this node:
if (store.getDevice(did) != null) {
reassertRole(did, myNextRole);
} else {
log.debug("Device is not yet/no longer in the store: {}", did);
}
}
// Intercepts mastership events // Intercepts mastership events
private class InternalMastershipListener implements MastershipListener { private class InternalMastershipListener implements MastershipListener {
@Override @Override
public void event(MastershipEvent event) { public void event(MastershipEvent event) {
if (event.type() != MastershipEvent.Type.MASTER_CHANGED) { backgroundService.submit(() -> {
// Don't care if backup list changed. try {
return; handleMastershipEvent(event);
} } catch (Exception e) {
log.warn("Failed to handle {}", event, e);
final DeviceId did = event.subject();
// myRole suggested by MastershipService
MastershipRole myNextRole;
if (localNodeId.equals(event.roleInfo().master())) {
// confirm latest info
MastershipTerm term = termService.getMastershipTerm(did);
final boolean iHaveControl = term != null && localNodeId.equals(term.master());
if (iHaveControl) {
deviceClockProviderService.setMastershipTerm(did, term);
myNextRole = MASTER;
} else {
myNextRole = STANDBY;
} }
} else if (event.roleInfo().backups().contains(localNodeId)) { });
myNextRole = STANDBY;
} else {
myNextRole = NONE;
}
final boolean isReachable = isReachable(did);
if (!isReachable) {
// device is not connected to this node
if (myNextRole != NONE) {
log.warn("Node was instructed to be {} role for {}, "
+ "but this node cannot reach the device. "
+ "Relinquishing role. ",
myNextRole, did);
mastershipService.relinquishMastership(did);
}
return;
}
// device is connected to this node:
if (store.getDevice(did) != null) {
reassertRole(did, myNextRole);
} else {
log.debug("Device is not yet/no longer in the store: {}", did);
}
} }
} }