--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancStone/Sources/Toolbox/ParsedDicomCache.h	Tue Jul 07 16:21:02 2020 +0200
@@ -0,0 +1,80 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2020 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include <Cache/MemoryObjectCache.h>
+#include <DicomParsing/ParsedDicomFile.h>
+
+namespace OrthancStone
+{
+  class ParsedDicomCache : public boost::noncopyable
+  {
+  private:
+    class Item;
+
+    static std::string GetIndex(unsigned int bucket,
+                                const std::string& bucketKey);
+    
+    Orthanc::MemoryObjectCache  cache_;
+
+  public:
+    ParsedDicomCache(size_t size)
+    {
+      cache_.SetMaximumSize(size);
+    }
+
+    void Invalidate(unsigned int bucket,
+                    const std::string& bucketKey)
+    {
+      cache_.Invalidate(GetIndex(bucket, bucketKey));
+    }
+    
+    void Acquire(unsigned int bucket,
+                 const std::string& bucketKey,
+                 Orthanc::ParsedDicomFile* dicom,
+                 size_t fileSize,
+                 bool hasPixelData);
+
+    class Reader : public boost::noncopyable
+    {
+    private:
+      Orthanc::MemoryObjectCache::Accessor accessor_;
+      Item*                                item_;
+
+    public:
+      Reader(ParsedDicomCache& cache,
+             unsigned int bucket,
+             const std::string& bucketKey);
+
+      bool IsValid() const
+      {
+        return item_ != NULL;
+      }
+
+      bool HasPixelData() const;
+
+      Orthanc::ParsedDicomFile& GetDicom() const;
+
+      size_t GetFileSize() const;
+    };
+  };
+}