--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/OrthancRestApi/OrthancRestChanges.cpp	Wed Apr 16 16:04:55 2014 +0200
@@ -0,0 +1,132 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege,
+ * Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "OrthancRestApi.h"
+
+#include <glog/logging.h>
+
+namespace Orthanc
+{
+  // Changes API --------------------------------------------------------------
+ 
+  static void GetSinceAndLimit(int64_t& since,
+                               unsigned int& limit,
+                               bool& last,
+                               const RestApi::GetCall& call)
+  {
+    static const unsigned int MAX_RESULTS = 100;
+    
+    if (call.HasArgument("last"))
+    {
+      last = true;
+      return;
+    }
+
+    last = false;
+
+    try
+    {
+      since = boost::lexical_cast<int64_t>(call.GetArgument("since", "0"));
+      limit = boost::lexical_cast<unsigned int>(call.GetArgument("limit", "0"));
+    }
+    catch (boost::bad_lexical_cast)
+    {
+      return;
+    }
+
+    if (limit == 0 || limit > MAX_RESULTS)
+    {
+      limit = MAX_RESULTS;
+    }
+  }
+
+  static void GetChanges(RestApi::GetCall& call)
+  {
+    ServerContext& context = OrthancRestApi::GetContext(call);
+
+    //std::string filter = GetArgument(getArguments, "filter", "");
+    int64_t since;
+    unsigned int limit;
+    bool last;
+    GetSinceAndLimit(since, limit, last, call);
+
+    Json::Value result;
+    if ((!last && context.GetIndex().GetChanges(result, since, limit)) ||
+        ( last && context.GetIndex().GetLastChange(result)))
+    {
+      call.GetOutput().AnswerJson(result);
+    }
+  }
+
+
+  static void DeleteChanges(RestApi::DeleteCall& call)
+  {
+    OrthancRestApi::GetIndex(call).DeleteChanges();
+    call.GetOutput().AnswerBuffer("", "text/plain");
+  }
+
+
+  // Exports API --------------------------------------------------------------
+ 
+  static void GetExports(RestApi::GetCall& call)
+  {
+    ServerContext& context = OrthancRestApi::GetContext(call);
+
+    int64_t since;
+    unsigned int limit;
+    bool last;
+    GetSinceAndLimit(since, limit, last, call);
+
+    Json::Value result;
+    if ((!last && context.GetIndex().GetExportedResources(result, since, limit)) ||
+        ( last && context.GetIndex().GetLastExportedResource(result)))
+    {
+      call.GetOutput().AnswerJson(result);
+    }
+  }
+
+
+  static void DeleteExports(RestApi::DeleteCall& call)
+  {
+    OrthancRestApi::GetIndex(call).DeleteExportedResources();
+    call.GetOutput().AnswerBuffer("", "text/plain");
+  }
+  
+
+  void OrthancRestApi::RegisterChanges()
+  {
+    Register("/changes", GetChanges);
+    Register("/changes", DeleteChanges);
+    Register("/exports", GetExports);
+    Register("/exports", DeleteExports);
+  }
+}