/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.samza.zk;

import org.apache.samza.config.ApplicationConfig;
import org.apache.samza.config.Config;
import org.apache.samza.coordinator.CoordinationConstants;
import org.apache.samza.metadatastore.MetadataStore;
import org.apache.samza.metadatastore.MetadataStoreFactory;
import org.apache.samza.metrics.MetricsRegistry;

/**
 * Builds the {@link ZkMetadataStore} based upon the provided {@link Config}
 * and {@link MetricsRegistry}.
 */
public class ZkMetadataStoreFactory implements MetadataStoreFactory {

  @Override
  public MetadataStore getMetadataStore(String namespace, Config config, MetricsRegistry metricsRegistry) {
    String globalAppId = new ApplicationConfig(config).getGlobalAppId();
    String metadataStoreBaseDir = "/" + globalAppId + "/" + CoordinationConstants.APPLICATION_RUNNER_PATH_SUFFIX + "/" + namespace;
    return new ZkMetadataStore(metadataStoreBaseDir, config, metricsRegistry);
  }
}