[735] | 1 | #region License Information
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| 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 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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[714] | 23 | using System.Collections.Generic;
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| 24 | using System.Linq;
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| 25 | using System.Text;
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[768] | 26 | using HeuristicLab.Hive.Client.ExecutionEngine;
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[735] | 27 | using HeuristicLab.Hive.Client.Common;
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[768] | 28 | using System.Threading;
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[770] | 29 | using System.Reflection;
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| 30 | using System.Diagnostics;
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| 31 | using System.Security.Permissions;
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| 32 | using System.Security.Policy;
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| 33 | using System.Security;
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[790] | 34 | using HeuristicLab.Hive.Client.Communication;
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[793] | 35 | using HeuristicLab.Hive.Contracts.BusinessObjects;
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| 36 | using HeuristicLab.Hive.Contracts;
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[804] | 37 | using System.Runtime.Remoting.Messaging;
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[816] | 38 | using HeuristicLab.PluginInfrastructure;
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[714] | 39 |
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[768] | 40 |
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[714] | 41 | namespace HeuristicLab.Hive.Client.Core {
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| 42 | public class Core {
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[768] | 43 |
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[804] | 44 | public delegate string GetASnapshotDelegate();
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| 45 |
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[768] | 46 | Dictionary<long, Executor> engines = new Dictionary<long, Executor>();
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[770] | 47 | Dictionary<long, AppDomain> appDomains = new Dictionary<long, AppDomain>();
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| 48 |
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| 49 | public static StrongName CreateStrongName(Assembly assembly) {
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| 50 | if (assembly == null)
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| 51 | throw new ArgumentNullException("assembly");
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| 52 |
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| 53 | AssemblyName assemblyName = assembly.GetName();
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| 54 | Debug.Assert(assemblyName != null, "Could not get assembly name");
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| 55 |
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| 56 | // get the public key blob
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| 57 | byte[] publicKey = assemblyName.GetPublicKey();
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| 58 | if (publicKey == null || publicKey.Length == 0)
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| 59 | throw new InvalidOperationException("Assembly is not strongly named");
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| 60 |
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| 61 | StrongNamePublicKeyBlob keyBlob = new StrongNamePublicKeyBlob(publicKey);
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| 62 |
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| 63 | // and create the StrongName
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| 64 | return new StrongName(keyBlob, assemblyName.Name, assemblyName.Version);
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| 65 | }
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| 66 |
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[798] | 67 | private ClientCommunicatorClient clientCommunicator;
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| 68 |
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[790] | 69 | public void Start() {
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[811] | 70 | Heartbeat beat = new Heartbeat { Interval = 5000 };
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[790] | 71 | beat.StartHeartbeat();
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[768] | 72 |
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[793] | 73 | ClientInfo clientInfo = new ClientInfo { ClientId = Guid.NewGuid() };
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[790] | 74 |
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[798] | 75 | clientCommunicator = ServiceLocator.GetClientCommunicator();
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[790] | 76 | clientCommunicator.LoginCompleted += new EventHandler<LoginCompletedEventArgs>(ClientCommunicator_LoginCompleted);
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[808] | 77 | clientCommunicator.PullJobCompleted += new EventHandler<PullJobCompletedEventArgs>(ClientCommunicator_PullJobCompleted);
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[830] | 78 | clientCommunicator.SendJobResultCompleted += new EventHandler<SendJobResultCompletedEventArgs>(ClientCommunicator_SendJobResultCompleted);
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[790] | 79 | clientCommunicator.LoginAsync(clientInfo);
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| 80 |
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[735] | 81 | MessageQueue queue = MessageQueue.GetInstance();
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| 82 | while (true) {
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| 83 | MessageContainer container = queue.GetMessage();
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[779] | 84 | Debug.WriteLine("Main loop received this message: " + container.Message.ToString());
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[790] | 85 | Logging.GetInstance().Info(this.ToString(), container.Message.ToString());
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[768] | 86 | DetermineAction(container);
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[735] | 87 | }
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| 88 | }
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[768] | 89 |
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[798] | 90 | void ClientCommunicator_LoginCompleted(object sender, LoginCompletedEventArgs e) {
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[790] | 91 | if (e.Result.Success) {
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| 92 | Logging.GetInstance().Info(this.ToString(), "Login completed to Hive Server @ " + DateTime.Now);
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| 93 | Status.LoginTime = DateTime.Now;
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| 94 | Status.LoggedIn = true;
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| 95 | } else
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| 96 | Logging.GetInstance().Error(this.ToString(), e.Result.StatusMessage);
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| 97 | }
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| 98 |
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[770] | 99 | private AppDomain CreateNewAppDomain(bool sandboxed) {
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| 100 | PermissionSet pset;
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| 101 | if (sandboxed) {
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| 102 | pset = new PermissionSet(PermissionState.None);
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[790] | 103 | pset.AddPermission(new SecurityPermission(SecurityPermissionFlag.Execution));
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[770] | 104 | } else {
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| 105 | pset = new PermissionSet(PermissionState.Unrestricted);
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| 106 | }
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| 107 | AppDomainSetup setup = new AppDomainSetup();
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| 108 | setup.ApplicationBase = AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
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| 109 | //Temp Fix!
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| 110 | setup.PrivateBinPath = "plugins";
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[790] | 111 | return System.AppDomain.CreateDomain("appD", AppDomain.CurrentDomain.Evidence, setup, pset, CreateStrongName(Assembly.GetExecutingAssembly()));
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[770] | 112 |
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| 113 | }
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| 114 |
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[768] | 115 | private void DetermineAction(MessageContainer container) {
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[779] | 116 | switch (container.Message) {
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| 117 | case MessageContainer.MessageType.AbortJob:
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| 118 | engines[container.JobId].Abort();
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| 119 | break;
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| 120 | case MessageContainer.MessageType.JobAborted:
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| 121 | Debug.WriteLine("-- Job Aborted Message received");
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| 122 | break;
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[790] | 123 |
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[779] | 124 | case MessageContainer.MessageType.RequestSnapshot:
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| 125 | engines[container.JobId].RequestSnapshot();
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| 126 | break;
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| 127 | case MessageContainer.MessageType.SnapshotReady:
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[811] | 128 | Thread ssr = new Thread(new ParameterizedThreadStart(GetSnapshot));
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| 129 | ssr.Start(container.JobId);
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[779] | 130 | break;
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[790] | 131 |
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[811] | 132 | case MessageContainer.MessageType.FetchJob:
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[798] | 133 | clientCommunicator.PullJobAsync(Guid.NewGuid());
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[811] | 134 | break;
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[779] | 135 | case MessageContainer.MessageType.FinishedJob:
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[811] | 136 | Thread finThread = new Thread(new ParameterizedThreadStart(GetFinishedJob));
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| 137 | finThread.Start(container.JobId);
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| 138 | break;
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[779] | 139 | }
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| 140 | }
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[790] | 141 |
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[811] | 142 | private void GetFinishedJob(object jobId) {
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| 143 | long jId = (long)jobId;
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[830] | 144 | byte[] sJob = engines[jId].GetFinishedJob();
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[816] | 145 |
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[830] | 146 | JobResult jobResult = new JobResult { JobId = jId, Result = sJob, Client = null };
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| 147 | clientCommunicator.SendJobResultAsync(jobResult, true);
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| 148 |
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[811] | 149 | AppDomain.Unload(appDomains[jId]);
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| 150 | appDomains.Remove(jId);
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| 151 | engines.Remove(jId);
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[830] | 152 | Status.CurrentJobs--;
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| 153 | Debug.WriteLine("Decrement CurrentJobs to:" + Status.CurrentJobs.ToString());
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[811] | 154 |
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[804] | 155 | }
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| 156 |
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[811] | 157 | private void GetSnapshot(object jobId) {
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| 158 | long jId = (long)jobId;
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[816] | 159 | byte[] obj = engines[jId].GetSnapshot();
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[811] | 160 | }
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| 161 |
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[798] | 162 | void ClientCommunicator_PullJobCompleted(object sender, PullJobCompletedEventArgs e) {
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| 163 | bool sandboxed = false;
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| 164 |
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[830] | 165 | //IJob job = new TestJob { JobId = e.Result.JobId };
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[798] | 166 |
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[816] | 167 | PluginManager pm = PluginManager.Manager;
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| 168 | AppDomain appDomain = pm.CreateAndInitAppDomain("AppDomain");
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| 169 |
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| 170 | //AppDomain appDomain = CreateNewAppDomain(sandboxed);
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[830] | 171 | appDomains.Add(e.Result.JobId, appDomain);
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[798] | 172 |
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| 173 | Executor engine = (Executor)appDomain.CreateInstanceAndUnwrap(typeof(Executor).Assembly.GetName().Name, typeof(Executor).FullName);
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[830] | 174 | engine.JobId = e.Result.JobId;
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[798] | 175 | engine.Queue = MessageQueue.GetInstance();
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[830] | 176 | engine.Start(e.Result.SerializedJob);
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| 177 | engines.Add(e.Result.JobId, engine);
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[798] | 178 |
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| 179 | Status.CurrentJobs++;
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| 180 |
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| 181 | Debug.WriteLine("Increment CurrentJobs to:"+Status.CurrentJobs.ToString());
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| 182 | }
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| 183 |
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[830] | 184 | void ClientCommunicator_SendJobResultCompleted(object sender, SendJobResultCompletedEventArgs e) {
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| 185 | // TODO Removing of the Engines & AppDomains should happen here, not in the GetFinishedJob Method.
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[779] | 186 | }
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[714] | 187 | }
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| 188 | }
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