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diff --git a/decoder/tests/snapshot_parser_lib/include/device_parser.h b/decoder/tests/snapshot_parser_lib/include/device_parser.h
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+++ b/decoder/tests/snapshot_parser_lib/include/device_parser.h
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+/*
+ * \file       device_parser.h
+ * \brief      OpenCSD : Snapshot parser library
+ * 
+ * \copyright  Copyright (c) 2015, ARM Limited. All Rights Reserved.
+ */
+
+
+/* 
+ * Redistribution and use in source and binary forms, with or without modification, 
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, 
+ * this list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form must reproduce the above copyright notice, 
+ * this list of conditions and the following disclaimer in the documentation 
+ * and/or other materials provided with the distribution. 
+ * 
+ * 3. Neither the name of the copyright holder nor the names of its contributors 
+ * may be used to endorse or promote products derived from this software without 
+ * specific prior written permission. 
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 'AS IS' AND 
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */ 
+
+#ifndef DEVICE_PARSER_H
+#define DEVICE_PARSER_H
+
+#include "device_info.h"
+#include <memory>
+
+#include <map>
+#include <istream>
+#include <vector>
+#include <cstdint>
+
+#include "snapshot_info.h"
+
+class DeviceParser
+{
+public:
+    virtual ~DeviceParser() {};
+    typedef std::shared_ptr<DeviceInfo> DevPtr;
+    virtual DevPtr getDevice(int devNo) =0;
+    virtual void getDeviceList(std::vector<int> &devices)  const = 0;
+    virtual size_t getDeviceCount() const = 0;
+
+};
+
+class SnapshotParser
+{
+public:
+    virtual ~SnapshotParser() {};
+    virtual std::string getDescription() const = 0;
+    virtual std::string getVersion() const = 0;
+};
+
+class ModernSnapshotParser : public DeviceParser, SnapshotParser
+{
+public:
+    ModernSnapshotParser( std::istream &iss);
+    ModernSnapshotParser();
+    virtual ~ModernSnapshotParser();
+
+    typedef std::shared_ptr<DeviceInfo> DevPtr;
+    DevPtr getDevice(int devNo);
+    void getDeviceList(std::vector<int> &devices) const;
+    
+    bool isInitialised() const;
+    size_t getDeviceCount() const;
+
+    std::string getTraceMetadataFile() const;
+
+    // Snapshot Info
+    std::string getDescription() const;
+    std::string getVersion() const;
+
+
+private:
+    void addDevice(std::string rawName, std::string path);
+    uint32_t getUniqueDeviceID(std::string &rawName);
+    
+    void addSnapshotInfo(SnapshotInfo snap);
+
+    SnapshotInfo snaphotInfo;
+
+    // map stores deviceId and associated data
+    std::map<int, DevPtr> deviceMap;
+    bool initialised;
+
+    std::string traceMetaDataIni;
+};
+
+#endif
+
+/* End of File device_parser.h */