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Carry previous location information in HostEvent

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Change-Id: I06957d368a8a547cc3adb36bce4aaf96c432f4c8
This commit is contained in:
Charles Chan 2015-11-11 12:09:38 -08:00
parent 0fc6134f16
commit ec0425c18c
2 changed files with 40 additions and 4 deletions
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37
core/api/src/main/java/org/onosproject/net/host/HostEvent.java
View File

@ -15,8 +15,12 @@
*/
package org.onosproject.net.host;
import org.joda.time.LocalDateTime;
import org.onosproject.event.AbstractEvent;
import org.onosproject.net.Host;
import org.onosproject.net.HostLocation;
import static com.google.common.base.MoreObjects.toStringHelper;
/**
* Describes end-station host event.
@ -48,6 +52,8 @@ public class HostEvent extends AbstractEvent<HostEvent.Type, Host> {
HOST_MOVED
}
private HostLocation prevLocation;
/**
* Creates an event of a given type and for the specified host and the
* current time.
@ -70,4 +76,35 @@ public class HostEvent extends AbstractEvent<HostEvent.Type, Host> {
super(type, host, time);
}
/**
* Creates an event with HOST_MOVED type along with the previous location
* of the host.
*
* @param host event host subject
* @param prevLocation previous location of the host
*/
public HostEvent(Host host, HostLocation prevLocation) {
super(Type.HOST_MOVED, host);
this.prevLocation = prevLocation;
}
/**
* Gets the previous location information in this host event.
*
* @return the previous location, or null if previous location is not
* specified.
*/
public HostLocation prevLocation() {
return this.prevLocation;
}
@Override
public String toString() {
return toStringHelper(this)
.add("time", new LocalDateTime(time()))
.add("type", type())
.add("subject", subject())
.add("prevLocation", prevLocation())
.toString();
}
}

7
core/store/dist/src/main/java/org/onosproject/store/host/impl/ECHostStore.java vendored
View File

@ -20,7 +20,6 @@ import static com.google.common.base.Preconditions.checkState;
import static org.onosproject.net.DefaultAnnotations.merge;
import static org.onosproject.net.host.HostEvent.Type.HOST_ADDED;
import static org.onosproject.net.host.HostEvent.Type.HOST_REMOVED;
import static org.onosproject.net.host.HostEvent.Type.HOST_MOVED;
import static org.onosproject.net.host.HostEvent.Type.HOST_UPDATED;
import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.PUT;
import static org.onosproject.store.service.EventuallyConsistentMapEvent.Type.REMOVE;
@ -89,7 +88,7 @@ public class ECHostStore
private EventuallyConsistentMap<HostId, DefaultHost> hosts;
private final ConcurrentHashMap<HostId, ConnectPoint> locations =
private final ConcurrentHashMap<HostId, HostLocation> locations =
new ConcurrentHashMap<>();
private EventuallyConsistentMapListener<HostId, DefaultHost> hostLocationTracker =
@ -254,11 +253,11 @@ public class ECHostStore
public void event(EventuallyConsistentMapEvent<HostId, DefaultHost> event) {
DefaultHost host = checkNotNull(event.value());
if (event.type() == PUT) {
ConnectPoint prevLocation = locations.put(host.id(), host.location());
HostLocation prevLocation = locations.put(host.id(), host.location());
if (prevLocation == null) {
notifyDelegate(new HostEvent(HOST_ADDED, host));
} else if (!Objects.equals(prevLocation, host.location())) {
notifyDelegate(new HostEvent(HOST_MOVED, host));
notifyDelegate(new HostEvent(host, prevLocation));
} else {
notifyDelegate(new HostEvent(HOST_UPDATED, host));
}