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.distributed.impl;
  
  import java.net.InetSocketAddress;
  import java.nio.ByteBuffer;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.cassandra.cql3.CQLStatement;
  import org.apache.cassandra.cql3.QueryOptions;
  import org.apache.cassandra.cql3.QueryProcessor;
  import org.apache.cassandra.distributed.api.ConsistencyLevel;
  import org.apache.cassandra.distributed.api.SimpleQueryResult;
  import org.apache.cassandra.service.ClientState;
  import org.apache.cassandra.service.ClientWarn;
  import org.apache.cassandra.service.QueryState;
  import org.apache.cassandra.service.reads.thresholds.CoordinatorWarnings;
  import org.apache.cassandra.transport.Dispatcher;
  import org.apache.cassandra.transport.ProtocolVersion;
  import org.apache.cassandra.transport.messages.ResultMessage;
  import org.apache.cassandra.utils.ByteBufferUtil;
  import org.apache.cassandra.utils.FBUtilities;
  
  import static org.apache.cassandra.distributed.impl.Coordinator.toCassandraCL;
  
  public class CoordinatorHelper
  {
      public static SimpleQueryResult unsafeExecuteInternal(String query, ConsistencyLevel serialConsistencyLevel, ConsistencyLevel commitConsistencyLevel, Object[] boundValues)
      {
          return unsafeExecuteInternal(query, serialConsistencyLevel, commitConsistencyLevel, Dispatcher.RequestTime.forImmediateExecution(), boundValues);
      }
  
      public static SimpleQueryResult unsafeExecuteInternal(String query, ConsistencyLevel serialConsistencyLevel, ConsistencyLevel commitConsistencyLevel, Dispatcher.RequestTime requestTime, Object... boundValues)
      {
          ClientState clientState =  makeFakeClientState();
          CQLStatement prepared = QueryProcessor.getStatement(query, clientState);
          List<ByteBuffer> boundBBValues = new ArrayList<>();
          for (Object boundValue : boundValues)
              boundBBValues.add(ByteBufferUtil.objectToBytes(boundValue));
  
          prepared.validate(QueryState.forInternalCalls().getClientState());
          prepared.validate(clientState);
  
          // Start capturing warnings on this thread. Note that this will implicitly clear out any previous
          // warnings as it sets a new State instance on the ThreadLocal.
          ClientWarn.instance.captureWarnings();
          CoordinatorWarnings.init();
          try
          {
              ResultMessage res = prepared.execute(QueryState.forInternalCalls(),
                                                   QueryOptions.create(toCassandraCL(commitConsistencyLevel),
                                                                       boundBBValues,
                                                                       false,
                                                                       Integer.MAX_VALUE,
                                                                       null,
                                                                       toCassandraSerialCL(serialConsistencyLevel),
                                                                       ProtocolVersion.CURRENT,
                                                                       null),
                                                   requestTime);
              // Collect warnings reported during the query.
              CoordinatorWarnings.done();
              if (res != null)
                  res.setWarnings(ClientWarn.instance.getWarnings());
  
              return RowUtil.toQueryResult(res);
          }
          catch (Exception | Error e)
          {
              CoordinatorWarnings.done();
              throw e;
          }
          finally
          {
              CoordinatorWarnings.reset();
              ClientWarn.instance.resetWarnings();
          }
      }
  
      public static ClientState makeFakeClientState()
      {
          return ClientState.forExternalCalls(new InetSocketAddress(FBUtilities.getJustLocalAddress(), 9042));
      }
  
  
      protected static org.apache.cassandra.db.ConsistencyLevel toCassandraSerialCL(ConsistencyLevel cl)
      {
          return toCassandraCL(cl == null ? ConsistencyLevel.SERIAL : cl);
      }
  }
  