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using System;
using System.Collections.Generic;
namespace Lextm.SharpSnmpLib.Mib
{
public class ValueMap : Dictionary<Int64, string>
{
public ValueMap()
{
}
/// <summary>
/// Returns the values of the map as continuous range. At best as one range.
/// </summary>
/// <returns></returns>
public ValueRanges GetContinousRanges()
{
ValueRanges result = new ValueRanges();
if (this.Count > 0)
{
List<Int64> values = new List<long>(this.Keys);
values.Sort();
Int64 last = values[0];
Int64 offset = values[0];
for (int i=1; i<values.Count; i++)
{
if (values[i] != last + 1)
{
if (last == offset)
{
result.Add(new ValueRange(offset, null));
}
else
{
result.Add(new ValueRange(offset, last));
}
offset = values[i];
}
last = values[i];
}
if (last == offset)
{
result.Add(new ValueRange(offset, null));
}
else
{
result.Add(new ValueRange(offset, last));
}
}
return result;
}
/// <summary>
/// Gets the highest value contained in this value map.
/// </summary>
/// <returns></returns>
public Int64 GetHighestValue()
{
Int64 result = 0;
foreach (Int64 value in this.Keys)
{
if (value > result)
{
result = value;
}
}
return result;
}
/// <summary>
/// Interprets the single values as bit positions and creates a mask of it.
/// </summary>
/// <returns></returns>
public UInt32 GetBitMask()
{
UInt32 result = 0;
foreach (Int64 key in this.Keys)
{
if (key < 0)
{
throw new NotSupportedException("Negative numbers are not allowed for Bits!");
}
if (key > 31)
{
throw new NotSupportedException("Bits with more than 32 bits are not supported!");
}
result |= (UInt32)(1 << (int)key);
}
return result;
}
}
}
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