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using System;
using System.Net.Http.Headers;
namespace Microsoft.TestCommon
{
internal class ParsedMediaTypeHeaderValue
{
private const string MediaRangeAsterisk = "*";
private const char MediaTypeSubTypeDelimiter = '/';
private const string QualityFactorParameterName = "q";
private const double DefaultQualityFactor = 1.0;
private MediaTypeHeaderValue mediaType;
private string type;
private string subType;
private bool? hasNonQualityFactorParameter;
private double? qualityFactor;
public ParsedMediaTypeHeaderValue(MediaTypeHeaderValue mediaType)
{
this.mediaType = mediaType;
string[] splitMediaType = mediaType.MediaType.Split(MediaTypeSubTypeDelimiter);
this.type = splitMediaType[0];
this.subType = splitMediaType[1];
}
public string Type
{
get
{
return this.type;
}
}
public string SubType
{
get
{
return this.subType;
}
}
public bool IsAllMediaRange
{
get
{
return this.IsSubTypeMediaRange && String.Equals(MediaRangeAsterisk, this.Type, StringComparison.Ordinal);
}
}
public bool IsSubTypeMediaRange
{
get
{
return String.Equals(MediaRangeAsterisk, this.SubType, StringComparison.Ordinal);
}
}
public bool HasNonQualityFactorParameter
{
get
{
if (!this.hasNonQualityFactorParameter.HasValue)
{
this.hasNonQualityFactorParameter = false;
foreach (NameValueHeaderValue param in this.mediaType.Parameters)
{
if (!String.Equals(QualityFactorParameterName, param.Name, StringComparison.Ordinal))
{
this.hasNonQualityFactorParameter = true;
}
}
}
return this.hasNonQualityFactorParameter.Value;
}
}
public string CharSet
{
get
{
return this.mediaType.CharSet;
}
}
public double QualityFactor
{
get
{
if (!this.qualityFactor.HasValue)
{
MediaTypeWithQualityHeaderValue mediaTypeWithQuality = this.mediaType as MediaTypeWithQualityHeaderValue;
if (mediaTypeWithQuality != null)
{
this.qualityFactor = mediaTypeWithQuality.Quality;
}
if (!this.qualityFactor.HasValue)
{
this.qualityFactor = DefaultQualityFactor;
}
}
return this.qualityFactor.Value;
}
}
}
}
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