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.util.UUID;
  
  import org.apache.cassandra.distributed.api.ConsistencyLevel;
  import org.apache.cassandra.distributed.api.ICoordinator;
  import org.apache.cassandra.distributed.api.SimpleQueryResult;
  import org.apache.cassandra.utils.TimeUUID;
  
  public class Coordinators
  {
      public static class WithTrace
      {
          public final SimpleQueryResult result, trace;
  
          public WithTrace(SimpleQueryResult result, SimpleQueryResult trace)
          {
              this.result = result;
              this.trace = trace;
          }
      }
  
      public static WithTrace withTracing(ICoordinator coordinator, String query, ConsistencyLevel consistencyLevel, Object... boundValues)
      throws WithTraceException
      {
          UUID session = TimeUUID.Generator.nextTimeAsUUID();
          try
          {
              SimpleQueryResult result = coordinator.executeWithTracingWithResult(session, query, consistencyLevel, boundValues);
              return new WithTrace(result, getTrace(coordinator, session));
          }
          catch (Throwable t)
          {
              throw new WithTraceException(t, getTrace(coordinator, session));
          }
      }
  
      public static SimpleQueryResult getTrace(ICoordinator coordinator, UUID session)
      {
          return coordinator.executeWithResult("SELECT * FROM system_traces.events WHERE session_id=?", ConsistencyLevel.LOCAL_QUORUM, session);
      }
  
      public static class WithTraceException extends RuntimeException
      {
          public final SimpleQueryResult trace;
  
          public WithTraceException(Throwable cause, SimpleQueryResult trace)
          {
              super(cause);
              this.trace = trace;
          }
      }
  }
  