@Override
public long synchronizeData(final Cache<Object, Object> cache) throws CacheException {
int threads = Runtime.getRuntime().availableProcessors();
PersistenceManager loaderManager = getPersistenceManager(cache);
Set<CLInterfaceLoader> loaders = loaderManager.getStores(CLInterfaceLoader.class);
for (CLInterfaceLoader loader : loaders) {
MarshalledEntry loadedKnownKey = loader.load(KNOWN_KEY);
if (loadedKnownKey != null) {
Set<Object> keys;
try {
keys = jsonMapper.readValue((String) loadedKnownKey.getValue(), HashSet.class);
} catch (IOException e) {
throw new CacheException("Unable to read JSON value: " + loadedKnownKey.getValue(), e);
}
ExecutorService es = Executors.newFixedThreadPool(threads);
final AtomicInteger count = new AtomicInteger(0);
for (final Object key : keys) {
es.submit(
new Runnable() {
@Override
public void run() {
try {
cache.get(key);
int i = count.getAndIncrement();
if (log.isDebugEnabled() && i % 100 == 0)
log.debugf(">> Moved %s keys\n", i);
} catch (Exception e) {
log.keyMigrationFailed(Util.toStr(key), e);
}
}
});
}
es.shutdown();
try {
while (!es.awaitTermination(500, TimeUnit.MILLISECONDS)) ;
} catch (InterruptedException e) {
throw new CacheException(e);
}
return count.longValue();
}
}
throw log.missingMigrationData(cache.getName());
}
