/**
* Listen to events coming from all grid nodes.
*
* @throws GridException If failed.
*/
private static void remoteListen() throws GridException {
Grid g = GridGain.grid();
GridCache<Integer, String> cache = g.cache(CACHE_NAME);
// Register remote event listeners on all nodes running cache.
GridFuture<?> fut =
g.forCache(CACHE_NAME)
.events()
.remoteListen(
// This optional local callback is called for each event notification
// that passed remote predicate filter.
new GridBiPredicate<UUID, GridCacheEvent>() {
@Override
public boolean apply(UUID nodeId, GridCacheEvent evt) {
System.out.println();
System.out.println(
"Received event [evt="
+ evt.name()
+ ", key="
+ evt.key()
+ ", oldVal="
+ evt.oldValue()
+ ", newVal="
+ evt.newValue());
return true; // Return true to continue listening.
}
},
// Remote filter which only accepts events for keys that are
// greater or equal than 10 and if local node is primary for this key.
new GridPredicate<GridCacheEvent>() {
/** Auto-inject grid instance. */
@GridInstanceResource private Grid g;
@Override
public boolean apply(GridCacheEvent evt) {
Integer key = evt.key();
return key >= 10
&& g.cache(CACHE_NAME).affinity().isPrimary(g.localNode(), key);
}
},
// Types of events for which listeners are registered.
EVT_CACHE_OBJECT_PUT,
EVT_CACHE_OBJECT_READ,
EVT_CACHE_OBJECT_REMOVED);
// Wait until event listeners are subscribed on all nodes.
fut.get();
int keyCnt = 20;
// Generate cache events.
for (int i = 0; i < keyCnt; i++) cache.putx(i, Integer.toString(i));
}
/** @throws Exception If failed. */
public void testInvalidateFlag() throws Exception {
GridEx g0 = grid(0);
GridCache<String, String> cache = g0.cache(PARTITIONED_CACHE_NAME);
String key = null;
for (int i = 0; i < 10_000; i++) {
if (!cache.affinity().isPrimaryOrBackup(g0.localNode(), String.valueOf(i))) {
key = String.valueOf(i);
break;
}
}
assertNotNull(key);
cache.put(key, key); // Create entry in near cache, it is invalidated if INVALIDATE flag is set.
assertNotNull(cache.peek(key));
GridClientData d = client.data(PARTITIONED_CACHE_NAME);
d.flagsOn(GridClientCacheFlag.INVALIDATE).put(key, "zzz");
for (Grid g : G.allGrids()) {
cache = g.cache(PARTITIONED_CACHE_NAME);
if (cache.affinity().isPrimaryOrBackup(g.localNode(), key))
assertEquals("zzz", cache.peek(key));
else assertNull(cache.peek(key));
}
}
