344 lines
9 KiB
C#
344 lines
9 KiB
C#
/*
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* MmsValue.cs
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*
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* Copyright 2014 Michael Zillgith
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*
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* This file is part of libIEC61850.
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*
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* libIEC61850 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* libIEC61850 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with libIEC61850. If not, see <http://www.gnu.org/licenses/>.
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*
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* See COPYING file for the complete license text.
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*/
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using System;
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using System.Runtime.InteropServices;
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using System.Collections.Generic;
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using System.Collections;
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namespace IEC61850
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{
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namespace Client
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{
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public class MmsValue : IEnumerable
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{
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_toString (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern float MmsValue_toFloat (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern double MmsValue_toDouble (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern bool MmsValue_getBoolean (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern UInt32 MmsValue_getBitStringAsInteger (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern Int32 MmsValue_toInt32 (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern Int64 MmsValue_toInt64 (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern UInt32 MmsValue_toUint32 (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern int MmsValue_getType (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern void MmsValue_delete (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_getElement (IntPtr complexValue, int index);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern int MmsValue_getArraySize (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern ulong MmsValue_getUtcTimeInMs (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern UInt32 MmsValue_toUnixTimestamp (IntPtr self);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_newBoolean (bool value);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_newFloat (float value);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_newDouble (double value);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_newIntegerFromInt32 (Int32 integer);
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[DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
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static extern IntPtr MmsValue_newIntegerFromInt64 (Int64 integer);
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internal MmsValue (IntPtr value)
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{
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valueReference = value;
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this.responsableForDeletion = false;
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}
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internal MmsValue (IntPtr value, bool responsableForDeletion)
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{
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valueReference = value;
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this.responsableForDeletion = responsableForDeletion;
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}
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public MmsValue (bool value)
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{
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valueReference = MmsValue_newBoolean (value);
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}
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public MmsValue (float value)
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{
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valueReference = MmsValue_newFloat (value);
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}
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public MmsValue (double value)
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{
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valueReference = MmsValue_newDouble (value);
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}
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public MmsValue (int value)
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{
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valueReference = MmsValue_newIntegerFromInt32 (value);
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}
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public MmsValue (long value)
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{
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valueReference = MmsValue_newIntegerFromInt64 (value);
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}
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~MmsValue ()
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{
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if (responsableForDeletion)
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MmsValue_delete (valueReference);
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}
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internal IntPtr valueReference;
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private bool responsableForDeletion;
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public new MmsType GetType ()
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{
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return (MmsType)MmsValue_getType (valueReference);
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}
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public int Size ()
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{
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if ((GetType () == MmsType.MMS_ARRAY) || (GetType () == MmsType.MMS_STRUCTURE)) {
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return MmsValue_getArraySize (valueReference);
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} else
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throw new MmsValueException ("Value is not a complex type");
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}
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public MmsValue GetElement (int index)
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{
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MmsType type = GetType ();
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if ((type == MmsType.MMS_ARRAY) || (type == MmsType.MMS_STRUCTURE)) {
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if ((index >= 0) && (index < Size ())) {
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IntPtr value = MmsValue_getElement (valueReference, index);
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return new MmsValue (value);
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} else
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throw new MmsValueException ("Index out of bounds");
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} else
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throw new MmsValueException ("Value is of wrong type");
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}
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public UInt32 ToUnixTimestamp ()
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{
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if (GetType () == MmsType.MMS_UTC_TIME)
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return MmsValue_toUnixTimestamp (valueReference);
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else
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throw new MmsValueException ("Value is not a time type");
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}
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public ulong GetUtcTimeInMs ()
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{
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if (GetType () == MmsType.MMS_UTC_TIME) {
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return MmsValue_getUtcTimeInMs (valueReference);
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} else
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throw new MmsValueException ("Value is not a time type");
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}
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public static DateTimeOffset MsTimeToDateTimeOffset (UInt64 msTime)
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{
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DateTimeOffset retVal = new DateTimeOffset (1970, 1, 1, 0, 0, 0, TimeSpan.Zero);
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return retVal.AddMilliseconds (msTime);
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}
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public DateTimeOffset GetUtcTimeAsDateTimeOffset ()
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{
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if (GetType () == MmsType.MMS_UTC_TIME)
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return MsTimeToDateTimeOffset (GetUtcTimeInMs ());
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else
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throw new MmsValueException ("Value is not a time type");
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}
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public Int32 ToInt32 ()
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{
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if (GetType () != MmsType.MMS_INTEGER)
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throw new MmsValueException ("Value type is not integer");
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Int32 retVal = MmsValue_toInt32 (valueReference);
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return retVal;
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}
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public Int64 ToInt64 ()
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{
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if (GetType () != MmsType.MMS_INTEGER)
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throw new MmsValueException ("Value type is not integer");
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Int64 retVal = MmsValue_toInt64 (valueReference);
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return retVal;
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}
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public UInt32 ToUint32 ()
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{
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if (GetType () != MmsType.MMS_UNSIGNED)
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throw new MmsValueException ("Value type is not unsigned");
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UInt32 retVal = MmsValue_toUint32 (valueReference);
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return retVal;
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}
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public bool GetBoolean ()
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{
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if (GetType () == MmsType.MMS_BOOLEAN)
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return MmsValue_getBoolean (valueReference);
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else
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throw new MmsValueException ("Value type is not boolean");
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}
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public float ToFloat ()
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{
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if (GetType () == MmsType.MMS_FLOAT)
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return MmsValue_toFloat (valueReference);
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else
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throw new MmsValueException ("Value type is not float");
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}
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public double ToDouble ()
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{
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if (GetType () == MmsType.MMS_FLOAT)
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return MmsValue_toDouble (valueReference);
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else
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throw new MmsValueException ("Value type is not float");
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}
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// override standard ToString() method
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public override string ToString ()
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{
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switch (GetType ()) {
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case MmsType.MMS_VISIBLE_STRING:
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case MmsType.MMS_STRING:
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return Marshal.PtrToStringAnsi (MmsValue_toString (valueReference));
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case MmsType.MMS_BOOLEAN:
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return GetBoolean ().ToString ();
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case MmsType.MMS_INTEGER:
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return ToInt64 ().ToString ();
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case MmsType.MMS_UNSIGNED:
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return ToUint32 ().ToString ();
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case MmsType.MMS_FLOAT:
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return ToDouble ().ToString ();
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case MmsType.MMS_UTC_TIME:
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return GetUtcTimeAsDateTimeOffset ().ToString ();
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default:
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return "unknown";
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}
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}
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IEnumerator IEnumerable.GetEnumerator ()
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{
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return new MmsValueEnumerator (this);
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}
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private class MmsValueEnumerator : IEnumerator
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{
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private MmsValue value;
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private int index = -1;
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public MmsValueEnumerator (MmsValue value)
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{
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this.value = value;
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}
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#region IEnumerator Members
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public void Reset ()
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{
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index = -1;
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}
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public object Current {
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get { return value.GetElement (index);}
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}
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public bool MoveNext ()
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{
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index++;
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if (index >= value.Size ())
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return false;
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else
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return true;
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}
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#endregion
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}
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}
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public class MmsValueException : Exception
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{
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public MmsValueException (string message)
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: base(message)
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{
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}
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}
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public enum MmsType
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{
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MMS_ARRAY = 0,
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MMS_STRUCTURE = 1,
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MMS_BOOLEAN = 2,
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MMS_BIT_STRING = 3,
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MMS_INTEGER = 4,
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MMS_UNSIGNED = 5,
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MMS_FLOAT = 6,
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MMS_OCTET_STRING = 7,
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MMS_VISIBLE_STRING = 8,
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MMS_GENERALIZED_TIME = 9,
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MMS_BINARY_TIME = 10,
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MMS_BCD = 11,
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MMS_OBJ_ID = 12,
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MMS_STRING = 13,
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MMS_UTC_TIME = 14,
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MMS_DATA_ACCESS_ERROR = 15
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}
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}
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}
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