ClusterStatus.java example

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incubator-blur-master
package org.apache.blur.manager.clusterstatus;

/**
 * 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.
 */
import java.util.ArrayList;
import java.util.List;

import org.apache.blur.thrift.generated.TableDescriptor;


public abstract class ClusterStatus {
  
  public static abstract class Action {
    public abstract void action();
  }

  public abstract List<String> getOnlineShardServers(boolean useCache, String cluster);

  public abstract List<String> getShardServerList(String cluster);

  public abstract List<String> getOnlineControllerList();
 
  public abstract List<String> getControllerServerList();

  public abstract List<String> getClusterList(boolean useCache);

  public abstract TableDescriptor getTableDescriptor(boolean useCache, String cluster, String table);

  public final List<String> getTableList(boolean useCache) {
    List<String> tables = new ArrayList<String>();
    for (String cluster : getClusterList(useCache)) {
      tables.addAll(getTableList(useCache, cluster));
    }
    return tables;
  }

  public abstract String getCluster(boolean useCache, String table);

  public abstract boolean isEnabled(boolean useCache, String cluster, String table);

  public abstract boolean exists(boolean useCache, String cluster, String table);

  public abstract boolean isInSafeMode(boolean useCache, String cluster);

  public List<String> getOfflineShardServers(boolean useCache, String cluster) {
    List<String> shardServerList = new ArrayList<String>(getShardServerList(cluster));
    shardServerList.removeAll(getOnlineShardServers(useCache, cluster));
    return shardServerList;
  }

  public abstract List<String> getTableList(boolean useCache, String cluster);

  public abstract boolean isReadOnly(boolean useCache, String cluster, String table);

  public abstract void createTable(TableDescriptor tableDescriptor);

  public abstract void disableTable(String cluster, String table);

  public abstract void enableTable(String cluster, String table);

  public abstract void removeTable(String cluster, String table, boolean deleteIndexFiles);

  public abstract boolean isOpen();

  public abstract void registerActionOnTableStateChange(Action action);

}