[545] | 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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| 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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| 26 | using System.Data.Linq;
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| 27 | using HeuristicLab.CEDMA.DB.Interfaces;
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| 28 | using System.ServiceModel;
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| 29 | using System.Data;
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| 30 | using System.Data.SQLite;
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| 31 | using System.Data.Common;
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| 32 | using System.Threading;
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| 33 | using HeuristicLab.Data;
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| 34 | using HeuristicLab.Core;
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| 35 | using System.Xml;
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| 36 | using System.IO;
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| 37 |
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| 38 | namespace HeuristicLab.CEDMA.DB {
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| 39 | [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Multiple, UseSynchronizationContext = false)]
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| 40 | public class Store : IStore {
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| 41 | private string connectionString;
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| 42 | private SemWeb.Store store;
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| 43 | public Store(string connectionString) {
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| 44 | this.connectionString = connectionString;
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| 45 | store = SemWeb.Store.Create(connectionString);
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| 46 | }
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| 47 |
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| 48 | public void Add(Statement statement) {
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| 49 | store.Add(Translate(statement));
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| 50 | }
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| 51 |
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| 52 | public IList<Statement> Select(Statement template) {
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| 53 | SemWeb.SelectResult result = store.Select(Translate(template));
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| 54 | List<Statement> r = new List<Statement>();
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| 55 | foreach(SemWeb.Statement resultStatement in result) {
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| 56 | r.Add(Translate(resultStatement));
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| 57 | }
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| 58 | return r;
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| 59 | }
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| 60 |
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| 61 | private Statement Translate(SemWeb.Statement statement) {
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| 62 | if(statement.Object is SemWeb.Literal) {
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| 63 | return new Statement(
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| 64 | new Entity(statement.Subject.Uri),
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| 65 | new Entity(statement.Predicate.Uri),
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| 66 | TranslateLiteral((SemWeb.Literal)statement.Object));
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| 67 | } else {
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| 68 | return new Statement(
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| 69 | new Entity(statement.Subject.Uri),
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| 70 | new Entity(statement.Predicate.Uri),
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| 71 | new Entity(((SemWeb.Entity)statement.Object).Uri));
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| 72 | }
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| 73 | }
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| 74 |
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| 75 | private SemWeb.Statement Translate(Statement statement) {
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| 76 | if(statement.Property is Literal) {
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| 77 | return new SemWeb.Statement(
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| 78 | statement.Subject.Uri == null ? null : new SemWeb.Entity(statement.Subject.Uri),
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| 79 | statement.Predicate.Uri == null ? null : new SemWeb.Entity(statement.Predicate.Uri),
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| 80 | TranslateLiteral((Literal)statement.Property));
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| 81 | } else if(statement.Property is SerializedLiteral) {
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| 82 | return new SemWeb.Statement(
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| 83 | statement.Subject.Uri == null ? null : new SemWeb.Entity(statement.Subject.Uri),
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| 84 | statement.Predicate.Uri == null ? null : new SemWeb.Entity(statement.Predicate.Uri),
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| 85 | TranslateLiteral((SerializedLiteral)statement.Property));
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| 86 | } else {
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| 87 | return new SemWeb.Statement(
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| 88 | statement.Subject.Uri == null ? null : new SemWeb.Entity(statement.Subject.Uri),
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| 89 | statement.Predicate.Uri == null ? null : new SemWeb.Entity(statement.Predicate.Uri),
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| 90 | statement.Property.Uri == null ? null : new SemWeb.Entity(((Entity)statement.Property).Uri));
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| 91 | }
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| 92 | }
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| 93 |
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| 94 | private SemWeb.Literal TranslateLiteral(SerializedLiteral l) {
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| 95 | if(l.RawData == null) return null;
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| 96 | return new SemWeb.Literal(l.RawData, null, "serializedItem");
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| 97 | }
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| 98 |
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| 99 | private SemWeb.Literal TranslateLiteral(Literal l) {
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| 100 | if(l.Value == null) return null;
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| 101 | if(l.Value is double) return SemWeb.Literal.FromValue((double)l.Value);
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| 102 | else if(l.Value is bool) return SemWeb.Literal.FromValue((bool)l.Value);
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| 103 | else if(l.Value is int) return SemWeb.Literal.FromValue((int)l.Value);
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| 104 | else if(l.Value is long) return SemWeb.Literal.FromValue((long)l.Value);
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| 105 | else if(l.Value is string) return SemWeb.Literal.FromValue((string)l.Value);
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| 106 | else return new SemWeb.Literal(l.Value.ToString());
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| 107 | }
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| 108 |
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| 109 | private Resource TranslateLiteral(SemWeb.Literal l) {
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| 110 | if(l.DataType == "serializedItem") {
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| 111 | return new SerializedLiteral(l.Value);
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| 112 | } else if(l.DataType != null) {
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| 113 | return new Literal(l.ParseValue());
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| 114 | } else {
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| 115 | return new Literal(l.Value);
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| 116 | }
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| 117 | }
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| 118 | }
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| 119 | } |
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