/*
 * 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.accumulo.test.functional;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

import org.apache.accumulo.core.cli.BatchWriterOpts;
import org.apache.accumulo.core.client.ClientConfiguration;
import org.apache.accumulo.core.client.ClientConfiguration.ClientProperty;
import org.apache.accumulo.core.client.Connector;
import org.apache.accumulo.harness.AccumuloClusterHarness;
import org.apache.accumulo.test.TestIngest;
import org.apache.hadoop.io.Text;
import org.junit.Test;

/**
 * See ACCUMULO-779
 */
public class FateStarvationIT extends AccumuloClusterHarness {

  @Override
  protected int defaultTimeoutSeconds() {
    return 2 * 60;
  }

  @Test
  public void run() throws Exception {
    String tableName = getUniqueNames(1)[0];
    Connector c = getConnector();
    c.tableOperations().create(tableName);

    c.tableOperations().addSplits(tableName, TestIngest.getSplitPoints(0, 100000, 50));

    TestIngest.Opts opts = new TestIngest.Opts();
    opts.random = 89;
    opts.timestamp = 7;
    opts.dataSize = 50;
    opts.rows = 100000;
    opts.cols = 1;
    opts.setTableName(tableName);
    ClientConfiguration clientConf = cluster.getClientConfig();
    if (clientConf.getBoolean(ClientProperty.INSTANCE_RPC_SASL_ENABLED.getKey(), false)) {
      opts.updateKerberosCredentials(clientConf);
    } else {
      opts.setPrincipal(getAdminPrincipal());
    }
    TestIngest.ingest(c, opts, new BatchWriterOpts());

    c.tableOperations().flush(tableName, null, null, true);

    List<Text> splits = new ArrayList<>(TestIngest.getSplitPoints(0, 100000, 67));
    Random rand = new Random();

    for (int i = 0; i < 100; i++) {
      int idx1 = rand.nextInt(splits.size() - 1);
      int idx2 = rand.nextInt(splits.size() - (idx1 + 1)) + idx1 + 1;

      c.tableOperations().compact(tableName, splits.get(idx1), splits.get(idx2), false, false);
    }

    c.tableOperations().offline(tableName);

    FunctionalTestUtils.assertNoDanglingFateLocks(getConnector().getInstance(), getCluster());
  }

}