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.util;
  
  import java.net.InetSocketAddress;
  import java.nio.ByteBuffer;
  import java.util.ArrayList;
  import java.util.List;
  
  import com.google.common.collect.Maps;
  
  import com.datastax.driver.core.ColumnDefinitions;
  import com.datastax.driver.core.Host;
  import com.datastax.driver.core.ResultSet;
  import com.datastax.driver.core.Row;
  import com.datastax.driver.core.Session;
  import com.datastax.driver.core.SimpleStatement;
  import com.datastax.driver.core.exceptions.ReadFailureException;
  import com.datastax.driver.core.exceptions.WriteFailureException;
  import org.apache.cassandra.cql3.ast.Statement;
  import org.apache.cassandra.distributed.api.ConsistencyLevel;
  import org.apache.cassandra.distributed.api.IInstance;
  import org.apache.cassandra.exceptions.RequestFailureReason;
  
  import static org.apache.cassandra.distributed.test.JavaDriverUtils.toDriverCL;
  
  public class DriverUtils
  {
      public static ByteBuffer[][] getRowsAsByteBuffer(ResultSet result)
      {
          ColumnDefinitions columns = result.getColumnDefinitions();
          List<ByteBuffer[]> ret = new ArrayList<>();
          for (Row rowVal : result)
          {
              ByteBuffer[] row = new ByteBuffer[columns.size()];
              for (int i = 0; i < columns.size(); i++)
                  row[i] = rowVal.getBytesUnsafe(i);
              ret.add(row);
          }
          ByteBuffer[][] a = new ByteBuffer[ret.size()][];
          return ret.toArray(a);
      }
  
      public static ByteBuffer[][] executeQuery(Session session,
                                                IInstance instance,
                                                int fetchSize,
                                                ConsistencyLevel cl,
                                                Statement stmt)
      {
          SimpleStatement ss = new SimpleStatement(stmt.toCQL(), (Object[]) stmt.bindsEncoded());
          if (fetchSize != Integer.MAX_VALUE)
              ss.setFetchSize(fetchSize);
          if (stmt.kind() == Statement.Kind.MUTATION)
          {
              switch (cl)
              {
                  case SERIAL:
                      ss.setSerialConsistencyLevel(toDriverCL(cl));
                      ss.setConsistencyLevel(com.datastax.driver.core.ConsistencyLevel.QUORUM);
                      break;
                  case LOCAL_SERIAL:
                      ss.setSerialConsistencyLevel(toDriverCL(cl));
                      ss.setConsistencyLevel(com.datastax.driver.core.ConsistencyLevel.LOCAL_QUORUM);
                      break;
                  default:
                      ss.setConsistencyLevel(toDriverCL(cl));
              }
          }
          else
          {
              ss.setConsistencyLevel(toDriverCL(cl));
          }
  
          var host = getHost(session, instance);
          ss.setHost(host);
          ResultSet result;
          try
          {
              result = session.execute(ss);
          }
          catch (ReadFailureException t)
          {
              throw new AssertionError("failed from=" + Maps.transformValues(t.getFailuresMap(), DriverUtils::safeErrorCode), t);
          }
          catch (WriteFailureException t)
          {
              throw new AssertionError("failed from=" + Maps.transformValues(t.getFailuresMap(), DriverUtils::safeErrorCode), t);
          }
          return getRowsAsByteBuffer(result);
      }
  
      private static Host getHost(Session session, IInstance instance)
      {
          InetSocketAddress broadcastAddress = instance.config().broadcastAddress();
          return session.getCluster().getMetadata().getAllHosts().stream()
                        .filter(h -> h.getBroadcastSocketAddress().getAddress().equals(broadcastAddress.getAddress()))
                        .filter(h -> h.getBroadcastSocketAddress().getPort() == broadcastAddress.getPort())
                        .findAny()
                        .get();
      }
  
      private static String safeErrorCode(Integer code)
      {
          try
          {
              return RequestFailureReason.fromCode(code).name();
          }
          catch (IllegalArgumentException e)
          {
              return "Unexpected code " + code + ": " + e.getMessage();
          }
      }
  }
  