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.repair.consistent.admin;
  
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  import javax.management.openmbean.ArrayType;
  import javax.management.openmbean.CompositeData;
  import javax.management.openmbean.CompositeDataSupport;
  import javax.management.openmbean.CompositeType;
  import javax.management.openmbean.OpenDataException;
  import javax.management.openmbean.OpenType;
  import javax.management.openmbean.SimpleType;
  
  import com.google.common.base.Preconditions;
  import com.google.common.collect.Sets;
  
  import org.apache.cassandra.db.ColumnFamilyStore;
  import org.apache.cassandra.utils.TimeUUID;
  
  public class CleanupSummary
  {
      private static final String[] COMPOSITE_NAMES = new String[] { "keyspace", "table", "successful", "unsuccessful" };
      private static final OpenType<?>[] COMPOSITE_TYPES;
      private static final CompositeType COMPOSITE_TYPE;
  
      static
      {
          try
          {
              COMPOSITE_TYPES = new OpenType[] { SimpleType.STRING,
                                                 SimpleType.STRING,
                                                 ArrayType.getArrayType(SimpleType.STRING),
                                                 ArrayType.getArrayType(SimpleType.STRING) };
              COMPOSITE_TYPE = new CompositeType(RepairStats.Section.class.getName(), "PendingStats",
                                                 COMPOSITE_NAMES, COMPOSITE_NAMES, COMPOSITE_TYPES);
          }
          catch (OpenDataException e)
          {
              throw new RuntimeException(e);
          }
      }
  
      public final String keyspace;
      public final String table;
  
      public final Set<TimeUUID> successful;
      public final Set<TimeUUID> unsuccessful;
  
      public CleanupSummary(String keyspace, String table, Set<TimeUUID> successful, Set<TimeUUID> unsuccessful)
      {
          this.keyspace = keyspace;
          this.table = table;
          this.successful = successful;
          this.unsuccessful = unsuccessful;
      }
  
      public CleanupSummary(ColumnFamilyStore cfs, Set<TimeUUID> successful, Set<TimeUUID> unsuccessful)
      {
          this(cfs.getKeyspaceName(), cfs.name, successful, unsuccessful);
      }
  
      public static CleanupSummary add(CleanupSummary l, CleanupSummary r)
      {
          Preconditions.checkArgument(l.keyspace.equals(r.keyspace));
          Preconditions.checkArgument(l.table.equals(r.table));
  
          Set<TimeUUID> unsuccessful = new HashSet<>(l.unsuccessful);
          unsuccessful.addAll(r.unsuccessful);
  
          Set<TimeUUID> successful = new HashSet<>(l.successful);
          successful.addAll(r.successful);
          successful.removeAll(unsuccessful);
  
          return new CleanupSummary(l.keyspace, l.table, successful, unsuccessful);
      }
  
      private static String[] uuids2Strings(Set<TimeUUID> uuids)
      {
          String[] strings = new String[uuids.size()];
          int idx = 0;
          for (TimeUUID uuid : uuids)
              strings[idx++] = uuid.toString();
          return strings;
      }
  
      private static Set<TimeUUID> strings2Uuids(String[] strings)
      {
          Set<TimeUUID> uuids = Sets.newHashSetWithExpectedSize(strings.length);
          for (String string : strings)
              uuids.add(TimeUUID.fromString(string));
  
          return uuids;
      }
  
      public CompositeData toComposite()
      {
          Map<String, Object> values = new HashMap<>();
          values.put(COMPOSITE_NAMES[0], keyspace);
          values.put(COMPOSITE_NAMES[1], table);
          values.put(COMPOSITE_NAMES[2], uuids2Strings(successful));
          values.put(COMPOSITE_NAMES[3], uuids2Strings(unsuccessful));
          try
          {
              return new CompositeDataSupport(COMPOSITE_TYPE, values);
          }
          catch (OpenDataException e)
          {
              throw new RuntimeException(e);
          }
      }
  
      public static CleanupSummary fromComposite(CompositeData cd)
      {
          Preconditions.checkArgument(cd.getCompositeType().equals(COMPOSITE_TYPE));
          Object[] values = cd.getAll(COMPOSITE_NAMES);
          return new CleanupSummary((String) values[0],
                                    (String) values[1],
                                    strings2Uuids((String[]) values[2]),
                                    strings2Uuids((String[]) values[3]));
  
      }
  }
  