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source: branches/3.1/sources/HeuristicLab.CEDMA.Operators/InjectedVariableExtractor.cs @ 15160

Last change on this file since 15160 was 547, checked in by gkronber, 16 years ago

added new operators to add new rdf-statments and to query the stored graph (with statement templates). #261 (Items are stored multiple times in the result entries in the CEDMA DB)

File size: 4.6 KB
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1#region License Information
2/* HeuristicLab
3 * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
4 *
5 * This file is part of HeuristicLab.
6 *
7 * HeuristicLab is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation, either version 3 of the License, or
10 * (at your option) any later version.
11 *
12 * HeuristicLab is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
19 */
20#endregion
21
22using System;
23using System.Collections.Generic;
24using System.Text;
25using HeuristicLab.Core;
26using HeuristicLab.Data;
27using System.Threading;
28using HeuristicLab.CEDMA.DB.Interfaces;
29using System.ServiceModel;
30using HeuristicLab.CEDMA.Core;
31using HeuristicLab.Operators;
32
33namespace HeuristicLab.CEDMA.Operators {
34  public class InjectedVariableExtractor : OperatorBase {
35    public override string Description {
36      get { return "TASK."; }
37    }
38
39    public InjectedVariableExtractor()
40      : base() {
41      AddVariableInfo(new VariableInfo("AgentId", "Id of the agent to extract injected variables from.", typeof(IntData), VariableKind.In));
42      AddVariableInfo(new VariableInfo("CedmaServerUri", "Uri of the CEDMA server", typeof(StringData), VariableKind.In));
43      AddVariableInfo(new VariableInfo("VariableNames", "The names of injected variables that should be extracted", typeof(ItemList<StringData>), VariableKind.In));
44    }
45
46    public override IOperation Apply(IScope scope) {
47      string serverUrl = GetVariableValue<StringData>("CedmaServerUri", scope, true).Data;
48      long agentId = GetVariableValue<IntData>("AgentId", scope, true).Data;
49      ItemList<StringData> variableNames = GetVariableValue<ItemList<StringData>>("VariableNames", scope, true);
50
51      NetTcpBinding binding = new NetTcpBinding();
52      binding.MaxReceivedMessageSize = 10000000; // 10Mbytes
53      binding.ReaderQuotas.MaxStringContentLength = 10000000; // also 10M chars
54      binding.ReaderQuotas.MaxArrayLength = 10000000; // also 10M elements;
55      binding.Security.Mode = SecurityMode.None;
56      using(ChannelFactory<IDatabase> factory = new ChannelFactory<IDatabase>(binding)) {
57        IDatabase database = factory.CreateChannel(new EndpointAddress(serverUrl));
58        IOperatorGraph opGraph = (IOperatorGraph)PersistenceManager.RestoreFromGZip(database.GetAgentRawData(agentId));
59        OperatorLinkPatcher.LinkDatabase(opGraph, database);
60        ItemList<StringData> clone = new ItemList<StringData>();
61        foreach(StringData name in variableNames) clone.Add(name);
62        List<IVariable> vars = FindInjectedVariable(database, clone, opGraph);
63        foreach(IVariable var in vars) {
64          scope.AddVariable(var);
65        }
66      }
67      return null;
68    }
69
70    private List<IVariable> FindInjectedVariable(IDatabase database, ItemList<StringData> variableNames, IOperatorGraph opGraph) {
71      List<IVariable> vars = new List<IVariable>();
72      foreach(IOperator op in opGraph.Operators) {
73        vars.AddRange(FindInjectedVariable(database, variableNames, op));
74      }
75      return vars;
76    }
77
78    private List<IVariable> FindInjectedVariable(IDatabase database, ItemList<StringData> variableNames, IOperator op) {
79      List<IVariable> vars = new List<IVariable>();
80      List<string> missingVariables = new List<string>();
81      foreach(StringData variableName in variableNames) missingVariables.Add(variableName.Data);
82      foreach(string variableName in missingVariables) {
83        IVariable var = op.GetVariable(variableName);
84        if(var != null) {
85          vars.Add(var);
86          variableNames.Remove(new StringData(variableName));
87        }
88      }
89      if(op is CombinedOperator) {
90        vars.AddRange(FindInjectedVariable(database, variableNames, ((CombinedOperator)op).OperatorGraph));
91      } else if(op is OperatorLink) {
92        OperatorLink link = op as OperatorLink;
93        OperatorEntry targetEntry = database.GetOperator(link.Id);
94        IOperator target = (IOperator)PersistenceManager.RestoreFromGZip(targetEntry.RawData);
95        OperatorLinkPatcher.LinkDatabase(target, database);
96        link.Operator = target;
97
98        vars.AddRange(FindInjectedVariable(database, variableNames, link.Operator));
99      }
100      return vars;
101    }
102  }
103}
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