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diff --git a/src/UTMetadataRequestFactory.h b/src/UTMetadataRequestFactory.h
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+/* <!-- copyright */
+/*
+ * aria2 - The high speed download utility
+ *
+ * Copyright (C) 2009 Tatsuhiro Tsujikawa
+ *
+ * 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 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * 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.
+ */
+/* copyright --> */
+#ifndef _UT_METADATA_REQUEST_FACTORY_H_
+#define _UT_METADATA_REQUEST_FACTORY_H_
+
+#include "common.h"
+
+#include <deque>
+
+#include "SharedHandle.h"
+
+namespace aria2 {
+
+class PieceStorage;
+class DownloadContext;
+class Peer;
+class BtMessageDispatcher;
+class BtMessageFactory;
+class UTMetadataRequestTracker;
+class BtMessage;
+class Logger;
+
+class UTMetadataRequestFactory {
+private:
+  SharedHandle<DownloadContext> _dctx;
+
+  SharedHandle<Peer> _peer;
+
+  WeakHandle<BtMessageDispatcher> _dispatcher;
+
+  WeakHandle<BtMessageFactory> _messageFactory;
+
+  WeakHandle<UTMetadataRequestTracker> _tracker;
+
+  Logger* _logger;
+public:
+  UTMetadataRequestFactory();
+
+  // Creates at most num of ut_metadata request message and appends
+  // them to msgs. pieceStorage is used to identify missing piece.
+  void create(std::deque<SharedHandle<BtMessage> >& msgs, size_t num,
+	      const SharedHandle<PieceStorage>& pieceStorage);
+
+  void setDownloadContext(const SharedHandle<DownloadContext>& dctx)
+  {
+    _dctx = dctx;
+  }
+
+  void setBtMessageDispatcher(const WeakHandle<BtMessageDispatcher>& disp)
+  {
+    _dispatcher = disp;
+  }
+
+  void setBtMessageFactory(const WeakHandle<BtMessageFactory>& factory)
+  {
+    _messageFactory = factory;
+  }
+
+  void setPeer(const SharedHandle<Peer>& peer)
+  {
+    _peer = peer;
+  }
+
+  void setUTMetadataRequestTracker
+  (const WeakHandle<UTMetadataRequestTracker>& tracker)
+  {
+    _tracker = tracker;
+  }
+};
+
+} // namespace aria2
+
+#endif // _UT_METADATA_REQUEST_FACTORY_H_