[12468] | 1 | #region License Information
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| 2 | /* HeuristicLab
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[17180] | 3 | * Copyright (C) Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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[12468] | 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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[12691] | 23 | using System.Collections.Generic;
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[12468] | 24 | using System.Data.Linq;
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| 25 | using System.Linq;
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| 26 |
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| 27 | namespace HeuristicLab.Services.Hive.DataAccess.Daos {
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| 28 | public class TaskDao : GenericDao<Guid, Task> {
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| 29 | public TaskDao(DataContext dataContext) : base(dataContext) { }
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| 30 |
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| 31 | public override Task GetById(Guid id) {
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[12691] | 32 | return GetByIdQuery(DataContext, id);
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[12468] | 33 | }
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| 34 |
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| 35 | public IQueryable<Task> GetAllChildTasks() {
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| 36 | return Table.Where(x => !x.IsParentTask);
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| 37 | }
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[12516] | 38 |
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[12584] | 39 | public IQueryable<Task> GetByJobId(Guid id) {
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[12516] | 40 | return Table.Where(x => x.JobId == id);
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| 41 | }
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[12691] | 42 | public class TaskPriorityInfo {
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| 43 | public Guid JobId { get; set; }
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| 44 | public Guid TaskId { get; set; }
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| 45 | public int Priority { get; set; }
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| 46 | }
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| 47 |
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| 48 | public IEnumerable<TaskPriorityInfo> GetWaitingTasks(Slave slave) {
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| 49 | //Originally we checked here if there are parent tasks which should be calculated (with GetParentTasks(resourceIds, count, false);).
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| 50 | //Because there is at the moment no case where this makes sense (there don't exist parent tasks which need to be calculated),
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| 51 | //we skip this step because it's wasted runtime
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[16117] | 52 | return DataContext.ExecuteQuery<TaskPriorityInfo>(GetWaitingTasksQueryString,
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| 53 | slave.ResourceId,
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| 54 | Enum.GetName(typeof(TaskState), TaskState.Waiting),
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| 55 | slave.FreeCores,
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| 56 | slave.FreeMemory).ToList();
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[12691] | 57 | }
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| 58 |
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[12789] | 59 | /// <summary>
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| 60 | /// returns all parent tasks which are waiting for their child tasks to finish
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| 61 | /// </summary>
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| 62 | /// <param name="resourceIds">list of resourceids which for which the task should be valid</param>
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| 63 | /// <param name="count">maximum number of task to return</param>
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[16117] | 64 | /// <param name="finished">if true, all parent tasks which have FinishWhenChildJobsFinished=true are returned, otherwise only FinishWhenChildJobsFinished=false are returned</param>
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[12789] | 65 | /// <returns></returns>
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| 66 | public IEnumerable<Task> GetParentTasks(IEnumerable<Guid> resourceIds, int count, bool finished) {
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[16117] | 67 | var query = from t in Table
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| 68 | where t.State == TaskState.Waiting
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| 69 | && t.IsParentTask
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| 70 | && t.Job.AssignedJobResources.All(x => resourceIds.ToList().Contains(x.ResourceId))
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| 71 | && t.FinishWhenChildJobsFinished == finished
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| 72 | && t.ChildJobs.Any()
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| 73 | && t.ChildJobs.All(x =>
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| 74 | x.State == TaskState.Finished
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| 75 | || x.State == TaskState.Aborted
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| 76 | || x.State == TaskState.Failed)
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| 77 | orderby t.Priority descending
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| 78 | select t;
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[12789] | 79 | return count == 0 ? query.ToArray() : query.Take(count).ToArray();
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| 80 | }
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| 81 |
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[12691] | 82 | public void UpdateExecutionTime(Guid taskId, double executionTime) {
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| 83 | DataContext.ExecuteCommand(UpdateExecutionTimeQuery, executionTime, DateTime.Now, taskId);
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| 84 | }
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| 85 |
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| 86 | #region Compiled queries
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| 87 | private static readonly Func<DataContext, Guid, Task> GetByIdQuery =
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| 88 | CompiledQuery.Compile((DataContext db, Guid taskId) =>
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| 89 | (from task in db.GetTable<Task>()
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| 90 | where task.TaskId == taskId
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| 91 | select task).SingleOrDefault());
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| 92 | #endregion
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| 93 |
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| 94 | #region String queries
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[16117] | 95 | private const string GetCalculatingChildTasksByProjectId = @"
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| 96 | SELECT t.* FROM [Task] t, [Job] j
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| 97 | WHERE t.IsParentTask = 0
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| 98 | AND t.TaskState = 'Calculating'
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| 99 | AND t.JobId = j.JobId
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| 100 | AND j.ProjectId = {0}
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| 101 | ORDER BY j.ProjectId
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| 102 | ";
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[12691] | 103 | private const string GetWaitingTasksQueryString = @"
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[16117] | 104 | WITH rbranch AS (
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[12691] | 105 | SELECT ResourceId, ParentResourceId
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| 106 | FROM [Resource]
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| 107 | WHERE ResourceId = {0}
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| 108 | UNION ALL
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| 109 | SELECT r.ResourceId, r.ParentResourceId
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[16117] | 110 | FROM [Resource] r
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| 111 | JOIN rbranch rb ON rb.ParentResourceId = r.ResourceId
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[12691] | 112 | )
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| 113 | SELECT DISTINCT t.TaskId, t.JobId, t.Priority
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[16117] | 114 | FROM [Task] t, [Job] j, [AssignedJobResource] ajr, rbranch
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[12691] | 115 | WHERE NOT (t.IsParentTask = 1 AND t.FinishWhenChildJobsFinished = 1)
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[16117] | 116 | AND t.TaskState = {1}
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| 117 | AND t.CoresNeeded <= {2}
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| 118 | AND t.MemoryNeeded <= {3}
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| 119 | AND t.JobId = j.JobId
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| 120 | AND j.JobState = 'Online'
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| 121 | AND j.JobId = ajr.JobId
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| 122 | AND ajr.ResourceId = rbranch.ResourceId
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[12691] | 123 | ";
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| 124 |
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| 125 | private const string UpdateExecutionTimeQuery = @"
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| 126 | UPDATE [Task]
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| 127 | SET ExecutionTimeMs = {0},
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| 128 | LastHeartbeat = {1}
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| 129 | WHERE TaskId = {2}
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| 130 | ";
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| 131 | #endregion
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[12468] | 132 | }
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[12691] | 133 | } |
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