Changeset 1287 for trunk/sources/HeuristicLab.CEDMA.Core/DataSet.cs

Timestamp:

03/08/09 12:48:18 (15 years ago)

Author:

gkronber

Message:

Merged change sets from CEDMA branch to trunk:

• r957:r990 r992 r1003 r1041:1044 (#419)
• r1051:1053 r1060 (#419, #224)
• r1072:1075 r1104:1106 r1108:1109 r1115:1116 r1129:1130 r1151 r1156 (#419)
• r1201:1202 (#224)
• r1208 (#487)
• r1214:1217 r1230:1231 (#419)
• r1235:1236 r1238:1239 r1245 (#224)
• r1246 (#505)
• r1251:1254 r1262:1263 (#224)
• r1265:1266, r1275:1277 (#419)

File:

• trunk/sources/HeuristicLab.CEDMA.Core/DataSet.cs (copied) (copied from branches/CEDMA-Refactoring-Ticket419/HeuristicLab.CEDMA.Core/DataSet.cs) (2 diffs)

trunk/sources/HeuristicLab.CEDMA.Core/DataSet.cs

@@ -30 +30 @@
 
 namespace HeuristicLab.CEDMA.Core {
-  public class DataSet {
+  public class DataSet : IViewable {
     public IStore Store { get; set; }
-    public long Id { get; set; }
-    public string Name { get; set; }
+
+    private Guid guid;
+    public Guid Guid {
+      get { return guid; }
+    }
+
+    private string name;
+    public string Name {
+      get { return name; }
+      set { name = value; }
+    }
+
     private Problem problem;
-
     public Problem Problem {
-      get { return problem; }
+      get {
+        // lazy loading of problem from DB
+        if (problem == null) {
+          //var serializedDataVar = new HeuristicLab.CEDMA.DB.Interfaces.Variable("SerializedData");
+          //var persistedData = Store.Query(
+          //  new Statement[] { new Statement(new Entity(Ontology.CedmaNameSpace + Guid), Ontology.PredicateSerializedData, serializedDataVar)});
+          var persistedData = Store.Query(
+            "<" + Ontology.CedmaNameSpace + Guid + "> <" + Ontology.PredicateSerializedData.Uri + "> ?SerializedData .");
+          if (persistedData.Count() == 1) {
+            Literal persistedLiteral = (Literal)persistedData.First().Get("SerializedData");
+            this.problem = (Problem)PersistenceManager.RestoreFromGZip(Convert.FromBase64String((string)persistedLiteral.Value));
+          } else
+            this.problem = new Problem(); // no entry in the DB => create a new problem
+        }
+        return problem;
+      }
     }
 
     public DataSet()
       : base() {
-      problem = new Problem();
+      guid = Guid.NewGuid();
+      name = "Data set";
     }
 
-    public DataSet(IStore store, long id)
+    public DataSet(IStore store, Entity dataSetEntity)
       : this() {
       Store = store;
-      Id = id;
-    }
-
-    public void Save() {
-      throw new NotImplementedException();
+      guid = new Guid(dataSetEntity.Uri.Remove(0, Ontology.CedmaNameSpace.Length));
+      name = guid.ToString();
     }
 
     public void Activate() {
-      throw new NotImplementedException();
-    }
-
-    private void UpdateDataSet(long Id, byte[] p) {
-      throw new NotImplementedException();
+      Entity myEntity = new Entity(Ontology.CedmaNameSpace + Guid);
+      Store.Add(new Statement(myEntity, Ontology.PredicateInstanceOf, Ontology.TypeDataSet));
+      Store.Add(new Statement(myEntity, Ontology.PredicateSerializedData, new Literal(Convert.ToBase64String(PersistenceManager.SaveToGZip(problem)))));
+      Store.Add(new Statement(myEntity, Ontology.PredicateName, new Literal(name)));
     }
 
@@ -66 +87 @@
       return new DataSetView(this);
     }
+
+    internal Results GetResults() {
+      Results results = new Results(Store);
+      results.FilterDataSet(new Entity(Ontology.CedmaNameSpace + Guid));
+      return results;
+    }
   }
 }