content: /*
   * 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.cassandra.db;
  
  import java.io.IOException;
  import java.nio.ByteBuffer;
  
  import org.apache.cassandra.SchemaLoader;
  import org.apache.cassandra.Util;
  import org.apache.cassandra.schema.ColumnMetadata;
  import org.apache.cassandra.db.rows.Row;
  import org.apache.cassandra.db.partitions.*;
  import org.apache.cassandra.db.marshal.AsciiType;
  import org.apache.cassandra.exceptions.ConfigurationException;
  import org.apache.cassandra.schema.KeyspaceParams;
  import org.apache.cassandra.utils.ByteBufferUtil;
  
  import static org.junit.Assert.assertEquals;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  public class NameSortTest
  {
      private static final String KEYSPACE1 = "NameSortTest";
      private static final String CF = "Standard1";
  
      @BeforeClass
      public static void defineSchema() throws ConfigurationException
      {
          SchemaLoader.prepareServer();
          SchemaLoader.createKeyspace(KEYSPACE1,
                                      KeyspaceParams.simple(1),
                                      SchemaLoader.standardCFMD(KEYSPACE1, CF, 1000, AsciiType.instance));
      }
  
      @Test
      public void testNameSort1() throws IOException
      {
          // single key
          testNameSort(1);
      }
  
      @Test
      public void testNameSort10() throws IOException
      {
          // multiple keys, flushing concurrently w/ inserts
          testNameSort(10);
      }
  
      @Test
      public void testNameSort100() throws IOException
      {
          // enough keys to force compaction concurrently w/ inserts
          testNameSort(100);
      }
  
      private void testNameSort(int N) throws IOException
      {
          Keyspace keyspace = Keyspace.open(KEYSPACE1);
          ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(CF);
          for (int i = 0; i < N; i++)
          {
              ByteBuffer key = ByteBufferUtil.bytes(Integer.toString(i));
              RowUpdateBuilder rub = new RowUpdateBuilder(cfs.metadata(), 0, key);
              rub.clustering("cc");
              for (int j = 0; j < 8; j++)
                  rub.add("val" + j, j % 2 == 0 ? "a" : "b");
              rub.build().applyUnsafe();
          }
          validateNameSort(cfs);
          keyspace.getColumnFamilyStore("Standard1").forceBlockingFlush(ColumnFamilyStore.FlushReason.UNIT_TESTS);
          validateNameSort(cfs);
      }
  
      private void validateNameSort(ColumnFamilyStore cfs) throws IOException
      {
          for (FilteredPartition partition : Util.getAll(Util.cmd(cfs).build()))
          {
              for (Row r : partition)
              {
                  for (ColumnMetadata cd : r.columns())
                  {
                      if (r.getCell(cd) == null)
                          continue;
                      int cellVal = Integer.valueOf(cd.name.toString().substring(cd.name.toString().length() - 1));
                      String expected = cellVal % 2 == 0 ? "a" : "b";
                      assertEquals(expected, ByteBufferUtil.string(r.getCell(cd).buffer()));
                  }
              }
          }
      }
  }
  