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using System;
using Org.BouncyCastle.Utilities;
namespace Org.BouncyCastle.Asn1.Tsp
{
public class Accuracy
: Asn1Encodable
{
protected const int MinMillis = 1;
protected const int MaxMillis = 999;
protected const int MinMicros = 1;
protected const int MaxMicros = 999;
public static Accuracy GetInstance(object obj)
{
if (obj == null)
return null;
if (obj is Accuracy accuracy)
return accuracy;
return new Accuracy(Asn1Sequence.GetInstance(obj));
}
public static Accuracy GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
{
return new Accuracy(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
}
private readonly DerInteger m_seconds;
private readonly DerInteger m_millis;
private readonly DerInteger m_micros;
public Accuracy(DerInteger seconds, DerInteger millis, DerInteger micros)
{
if (null != millis)
{
int millisValue = millis.IntValueExact;
if (millisValue < MinMillis || millisValue > MaxMillis)
throw new ArgumentException("Invalid millis field : not in (1..999)");
}
if (null != micros)
{
int microsValue = micros.IntValueExact;
if (microsValue < MinMicros || microsValue > MaxMicros)
throw new ArgumentException("Invalid micros field : not in (1..999)");
}
m_seconds = seconds;
m_millis = millis;
m_micros = micros;
}
private Accuracy(Asn1Sequence seq)
{
DerInteger seconds = null;
DerInteger millis = null;
DerInteger micros = null;
for (int i = 0; i < seq.Count; ++i)
{
// seconds
if (seq[i] is DerInteger derInteger)
{
seconds = derInteger;
}
else if (seq[i] is Asn1TaggedObject extra)
{
switch (extra.TagNo)
{
case 0:
millis = DerInteger.GetInstance(extra, false);
int millisValue = millis.IntValueExact;
if (millisValue < MinMillis || millisValue > MaxMillis)
throw new ArgumentException("Invalid millis field : not in (1..999)");
break;
case 1:
micros = DerInteger.GetInstance(extra, false);
int microsValue = micros.IntValueExact;
if (microsValue < MinMicros || microsValue > MaxMicros)
throw new ArgumentException("Invalid micros field : not in (1..999)");
break;
default:
throw new ArgumentException("Invalid tag number");
}
}
}
m_seconds = seconds;
m_millis = millis;
m_micros = micros;
}
public DerInteger Seconds => m_seconds;
public DerInteger Millis => m_millis;
public DerInteger Micros => m_micros;
/**
* <pre>
* Accuracy ::= SEQUENCE {
* seconds INTEGER OPTIONAL,
* millis [0] INTEGER (1..999) OPTIONAL,
* micros [1] INTEGER (1..999) OPTIONAL
* }
* </pre>
*/
public override Asn1Object ToAsn1Object()
{
Asn1EncodableVector v = new Asn1EncodableVector(3);
v.AddOptional(m_seconds);
v.AddOptionalTagged(false, 0, m_millis);
v.AddOptionalTagged(false, 1, m_micros);
return new DerSequence(v);
}
}
}
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