/**
 * 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.hadoop.hbase.chaos.factories;

import org.apache.hadoop.hbase.chaos.actions.Action;
import org.apache.hadoop.hbase.chaos.actions.AddColumnAction;
import org.apache.hadoop.hbase.chaos.actions.BatchRestartRsAction;
import org.apache.hadoop.hbase.chaos.actions.ChangeCompressionAction;
import org.apache.hadoop.hbase.chaos.actions.ChangeBloomFilterAction;
import org.apache.hadoop.hbase.chaos.actions.ChangeEncodingAction;
import org.apache.hadoop.hbase.chaos.actions.ChangeVersionsAction;
import org.apache.hadoop.hbase.chaos.actions.CompactRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.CompactTableAction;
import org.apache.hadoop.hbase.chaos.actions.DumpClusterStatusAction;
import org.apache.hadoop.hbase.chaos.actions.FlushRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.FlushTableAction;
import org.apache.hadoop.hbase.chaos.actions.MergeRandomAdjacentRegionsOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.MoveRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.MoveRegionsOfTableAction;
import org.apache.hadoop.hbase.chaos.actions.RemoveColumnAction;
import org.apache.hadoop.hbase.chaos.actions.RestartActiveMasterAction;
import org.apache.hadoop.hbase.chaos.actions.RestartRandomRsAction;
import org.apache.hadoop.hbase.chaos.actions.RestartRsHoldingMetaAction;
import org.apache.hadoop.hbase.chaos.actions.RollingBatchRestartRsAction;
import org.apache.hadoop.hbase.chaos.actions.SnapshotTableAction;
import org.apache.hadoop.hbase.chaos.actions.SplitRandomRegionOfTableAction;
import org.apache.hadoop.hbase.chaos.monkies.ChaosMonkey;
import org.apache.hadoop.hbase.chaos.monkies.PolicyBasedChaosMonkey;
import org.apache.hadoop.hbase.chaos.policies.CompositeSequentialPolicy;
import org.apache.hadoop.hbase.chaos.policies.DoActionsOncePolicy;
import org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy;

public class SlowDeterministicMonkeyFactory extends MonkeyFactory {
  @Override
  public ChaosMonkey build() {

    // Actions such as compact/flush a table/region,
    // move one region around. They are not so destructive,
    // can be executed more frequently.
    Action[] actions1 = new Action[] {
        new CompactTableAction(tableName, 0.5f),
        new CompactRandomRegionOfTableAction(tableName, 0.6f),
        new FlushTableAction(tableName),
        new FlushRandomRegionOfTableAction(tableName),
        new MoveRandomRegionOfTableAction(tableName)
    };

    // Actions such as split/merge/snapshot.
    // They should not cause data loss, or unreliability
    // such as region stuck in transition.
    Action[] actions2 = new Action[] {
        new SplitRandomRegionOfTableAction(tableName),
        new MergeRandomAdjacentRegionsOfTableAction(tableName),
        new SnapshotTableAction(tableName),
        new AddColumnAction(tableName),
        new RemoveColumnAction(tableName, columnFamilies),
        new ChangeEncodingAction(tableName),
        new ChangeCompressionAction(tableName),
        new ChangeBloomFilterAction(tableName),
        new ChangeVersionsAction(tableName)
    };

    // Destructive actions to mess things around.
    Action[] actions3 = new Action[] {
        new MoveRegionsOfTableAction(800, tableName),
        new MoveRandomRegionOfTableAction(800, tableName),
        new RestartRandomRsAction(60000),
        new BatchRestartRsAction(5000, 0.5f),
        new RestartActiveMasterAction(5000),
        new RollingBatchRestartRsAction(5000, 1.0f),
        new RestartRsHoldingMetaAction(35000)
    };

    // Action to log more info for debugging
    Action[] actions4 = new Action[] {
        new DumpClusterStatusAction()
    };

    return new PolicyBasedChaosMonkey(util,
        new PeriodicRandomActionPolicy(60 * 1000, actions1),
        new PeriodicRandomActionPolicy(90 * 1000, actions2),
        new CompositeSequentialPolicy(
            new DoActionsOncePolicy(150 * 1000, actions3),
            new PeriodicRandomActionPolicy(150 * 1000, actions3)),
        new PeriodicRandomActionPolicy(90 * 1000, actions4));
  }
}
