Examples with MetadataStoreListener voldemort.store.metadata.MetadataStoreListener used on opensource projects

Example 1 with MetadataStoreListener

use of voldemort.store.metadata.MetadataStoreListener in project voldemort by voldemort.

the class StorageService method openStore.

public StorageEngine<ByteArray, byte[], byte[]> openStore(StoreDefinition storeDef) {
    logger.info("Opening store '" + storeDef.getName() + "' (" + storeDef.getType() + ").");
    StorageConfiguration config = storageConfigs.get(storeDef.getType());
    if (config == null)
        throw new ConfigurationException("Attempt to open store " + storeDef.getName() + " but " + storeDef.getType() + " storage engine has not been enabled.");
    boolean isReadOnly = storeDef.getType().compareTo(ReadOnlyStorageConfiguration.TYPE_NAME) == 0;
    final RoutingStrategy routingStrategy = new RoutingStrategyFactory().updateRoutingStrategy(storeDef, metadata.getCluster());
    final StorageEngine<ByteArray, byte[], byte[]> engine = config.getStore(storeDef, routingStrategy);
    // Update the routing strategy + add listener to metadata
    if (storeDef.getType().compareTo(ReadOnlyStorageConfiguration.TYPE_NAME) == 0) {
        metadata.addMetadataStoreListener(storeDef.getName(), new MetadataStoreListener() {

            public void updateRoutingStrategy(RoutingStrategy updatedRoutingStrategy) {
                ((ReadOnlyStorageEngine) engine).setRoutingStrategy(updatedRoutingStrategy);
            }

            public void updateStoreDefinition(StoreDefinition storeDef) {
                return;
            }
        });
    }
    // openStore() should have atomic semantics
    try {
        registerEngine(engine, isReadOnly, storeDef.getType(), storeDef);
        if (voldemortConfig.isServerRoutingEnabled())
            registerNodeStores(storeDef, metadata.getCluster(), voldemortConfig.getNodeId());
        if (storeDef.hasRetentionPeriod())
            scheduleCleanupJob(storeDef, engine);
    } catch (Exception e) {
        removeEngine(engine, isReadOnly, storeDef.getType(), false);
        throw new VoldemortException(e);
    }
    return engine;
}