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using System;
using System.Collections.Generic;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Collections;
namespace Org.BouncyCastle.Asn1.X509
{
/**
* This extension may contain further X.500 attributes of the subject. See also
* RFC 3039.
*
* <pre>
* SubjectDirectoryAttributes ::= Attributes
* Attributes ::= SEQUENCE SIZE (1..MAX) OF Attribute
* Attribute ::= SEQUENCE
* {
* type AttributeType
* values SET OF AttributeValue
* }
*
* AttributeType ::= OBJECT IDENTIFIER
* AttributeValue ::= ANY DEFINED BY AttributeType
* </pre>
*
* @see org.bouncycastle.asn1.x509.X509Name for AttributeType ObjectIdentifiers.
*/
public class SubjectDirectoryAttributes
: Asn1Encodable
{
private readonly IList<AttributeX509> m_attributes;
public static SubjectDirectoryAttributes GetInstance(
object obj)
{
if (obj == null || obj is SubjectDirectoryAttributes)
{
return (SubjectDirectoryAttributes) obj;
}
if (obj is Asn1Sequence)
{
return new SubjectDirectoryAttributes((Asn1Sequence) obj);
}
throw new ArgumentException("unknown object in factory: " + Platform.GetTypeName(obj), "obj");
}
/**
* Constructor from Asn1Sequence.
*
* The sequence is of type SubjectDirectoryAttributes:
*
* <pre>
* SubjectDirectoryAttributes ::= Attributes
* Attributes ::= SEQUENCE SIZE (1..MAX) OF Attribute
* Attribute ::= SEQUENCE
* {
* type AttributeType
* values SET OF AttributeValue
* }
*
* AttributeType ::= OBJECT IDENTIFIER
* AttributeValue ::= ANY DEFINED BY AttributeType
* </pre>
*
* @param seq
* The ASN.1 sequence.
*/
private SubjectDirectoryAttributes(
Asn1Sequence seq)
{
m_attributes = new List<AttributeX509>();
foreach (object o in seq)
{
Asn1Sequence s = Asn1Sequence.GetInstance(o);
m_attributes.Add(AttributeX509.GetInstance(s));
}
}
/**
* Constructor from an ArrayList of attributes.
*
* The ArrayList consists of attributes of type {@link Attribute Attribute}
*
* @param attributes The attributes.
*
*/
public SubjectDirectoryAttributes(IList<AttributeX509> attributes)
{
m_attributes = new List<AttributeX509>(attributes);
}
/**
* Produce an object suitable for an Asn1OutputStream.
*
* Returns:
*
* <pre>
* SubjectDirectoryAttributes ::= Attributes
* Attributes ::= SEQUENCE SIZE (1..MAX) OF Attribute
* Attribute ::= SEQUENCE
* {
* type AttributeType
* values SET OF AttributeValue
* }
*
* AttributeType ::= OBJECT IDENTIFIER
* AttributeValue ::= ANY DEFINED BY AttributeType
* </pre>
*
* @return a DERObject
*/
public override Asn1Object ToAsn1Object()
{
AttributeX509[] v = new AttributeX509[m_attributes.Count];
for (int i = 0; i < m_attributes.Count; ++i)
{
v[i] = m_attributes[i];
}
return new DerSequence(v);
}
/**
* @return Returns the attributes.
*/
public IEnumerable<AttributeX509> Attributes
{
get { return CollectionUtilities.Proxy(m_attributes); }
}
}
}
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