diff Plugin/Cache/CacheManager.h @ 0:02f7a0400a91

initial commit
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 25 Feb 2015 13:45:35 +0100
parents
children a6492d20b2a8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Plugin/Cache/CacheManager.h	Wed Feb 25 13:45:35 2015 +0100
@@ -0,0 +1,96 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, 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 "../../Orthanc/SQLite/Connection.h"
+#include "../../Orthanc/FileStorage/FilesystemStorage.h"
+
+namespace OrthancPlugins
+{
+  class CacheManager : public boost::noncopyable
+  {
+  private:
+    struct PImpl;
+    boost::shared_ptr<PImpl> pimpl_;
+
+    class Bundle;
+    class BundleQuota;
+
+    typedef std::map<int, Bundle>  Bundles;
+    typedef std::map<int, BundleQuota>  BundleQuotas;
+
+    const BundleQuota& GetBundleQuota(int bundleIndex) const;
+
+    Bundle GetBundle(int bundleIndex) const;
+
+    void MakeRoom(Bundle& bundle,
+                  std::list<std::string>& toRemove,
+                  int bundleIndex,
+                  const BundleQuota& quota);
+
+    void EnsureQuota(int bundleIndex,
+                     const BundleQuota& quota);
+
+    void ReadBundleStatistics();
+
+    void Open();
+
+    bool LocateInCache(std::string& uuid,
+                       uint64_t& size,
+                       int bundle,
+                       const std::string& item);
+
+    void SanityCheck();  // Only for debug
+
+
+  public:
+    CacheManager(Orthanc::SQLite::Connection& db,
+                 Orthanc::FilesystemStorage& storage);
+
+    void SetSanityCheckEnabled(bool enabled);
+
+    void Clear();
+
+    void Clear(int bundle);
+
+    void SetBundleQuota(int bundle,
+                        uint32_t maxCount,
+                        uint64_t maxSpace);
+
+    void SetDefaultQuota(uint32_t maxCount,
+                         uint64_t maxSpace);
+
+    bool IsCached(int bundle,
+                  const std::string& item);
+
+    bool Access(std::string& content,
+                int bundle,
+                const std::string& item);
+
+    void Invalidate(int bundle,
+                    const std::string& item);
+
+    void Store(int bundle,
+               const std::string& item,
+               const std::string& content);
+
+  };
+}