| /* |
| * 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; |
| } |
| } |
| } |