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using System;
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) =>
new Accuracy(Asn1Sequence.GetInstance(taggedObject, declaredExplicit));
public static Accuracy GetOptional(Asn1Encodable element)
{
if (element == null)
throw new ArgumentNullException(nameof(element));
if (element is Accuracy accuracy)
return accuracy;
Asn1Sequence asn1Sequence = Asn1Sequence.GetOptional(element);
if (asn1Sequence != null)
return new Accuracy(asn1Sequence);
return null;
}
public static Accuracy GetTagged(Asn1TaggedObject taggedObject, bool declaredExplicit) =>
new Accuracy(Asn1Sequence.GetTagged(taggedObject, declaredExplicit));
private readonly DerInteger m_seconds;
private readonly DerInteger m_millis;
private readonly DerInteger m_micros;
private Accuracy(Asn1Sequence seq)
{
int count = seq.Count, pos = 0;
if (count < 0 || count > 3)
throw new ArgumentException("Bad sequence size: " + count, nameof(seq));
m_seconds = Asn1Utilities.ReadOptional(seq, ref pos, DerInteger.GetOptional);
m_millis = Asn1Utilities.ReadOptionalContextTagged(seq, ref pos, 0, false, DerInteger.GetTagged);
m_micros = Asn1Utilities.ReadOptionalContextTagged(seq, ref pos, 1, false, DerInteger.GetTagged);
if (pos != count)
throw new ArgumentException("Unexpected elements in sequence", nameof(seq));
Validate();
}
public Accuracy(DerInteger seconds, DerInteger millis, DerInteger micros)
{
m_seconds = seconds;
m_millis = millis;
m_micros = micros;
Validate();
}
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);
}
private void Validate()
{
if (m_millis != null)
{
int millisValue = m_millis.IntValueExact;
if (millisValue < MinMillis || millisValue > MaxMillis)
throw new ArgumentException("Invalid millis field : not in (1..999)");
}
if (m_micros != null)
{
int microsValue = m_micros.IntValueExact;
if (microsValue < MinMicros || microsValue > MaxMicros)
throw new ArgumentException("Invalid micros field : not in (1..999)");
}
}
}
}
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