Changeset 16946 for branches/2521_ProblemRefactoring/HeuristicLab.Persistence

Timestamp:

05/13/19 13:59:30 (6 years ago)

Author:

mkommend

Message:

#2521: Merged trunk changes up to r16945 into branch.

Location:

branches/2521_ProblemRefactoring

Files:

• . (modified) (1 prop)
• HeuristicLab.Persistence (modified) (1 prop)
• HeuristicLab.Persistence/3.3/Default/Xml/XmlParser.cs (modified) (1 diff)

branches/2521_ProblemRefactoring/HeuristicLab.Persistence/3.3/Default/Xml/XmlParser.cs

@@ -288 +288 @@
       }
     }
+
+    /// <summary>
+    /// Checks if the given file can be opened as <see cref="ZipArchive" />.
+    /// </summary>
+    /// <param name="filename">The filename.</param>
+    /// <returns><see langword="true" /> if the file can be opened as <see cref="ZipArchive" />; otherwise, <see langword="false" />.</returns>
+    public static bool CanOpen(string filename) {
+      try {
+        using (FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read)) {
+          using (ZipArchive zip = new ZipArchive(fs)) {
+            return true;
+          }
+        }
+      } catch (InvalidDataException) {
+        return false;
+      }
+    }
   }
 }