| package org.bouncycastle.asn1.ess; |
| |
| import org.bouncycastle.asn1.ASN1Encodable; |
| import org.bouncycastle.asn1.ASN1EncodableVector; |
| import org.bouncycastle.asn1.ASN1Object; |
| import org.bouncycastle.asn1.ASN1ObjectIdentifier; |
| import org.bouncycastle.asn1.ASN1Primitive; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.DERSequence; |
| import org.bouncycastle.asn1.DERUTF8String; |
| |
| public class ContentHints |
| extends ASN1Object |
| { |
| private DERUTF8String contentDescription; |
| private ASN1ObjectIdentifier contentType; |
| |
| public static ContentHints getInstance(Object o) |
| { |
| if (o instanceof ContentHints) |
| { |
| return (ContentHints)o; |
| } |
| else if (o != null) |
| { |
| return new ContentHints(ASN1Sequence.getInstance(o)); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * constructor |
| */ |
| private ContentHints(ASN1Sequence seq) |
| { |
| ASN1Encodable field = seq.getObjectAt(0); |
| if (field.toASN1Primitive() instanceof DERUTF8String) |
| { |
| contentDescription = DERUTF8String.getInstance(field); |
| contentType = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(1)); |
| } |
| else |
| { |
| contentType = ASN1ObjectIdentifier.getInstance(seq.getObjectAt(0)); |
| } |
| } |
| |
| public ContentHints( |
| ASN1ObjectIdentifier contentType) |
| { |
| this.contentType = contentType; |
| this.contentDescription = null; |
| } |
| |
| public ContentHints( |
| ASN1ObjectIdentifier contentType, |
| DERUTF8String contentDescription) |
| { |
| this.contentType = contentType; |
| this.contentDescription = contentDescription; |
| } |
| |
| public ASN1ObjectIdentifier getContentType() |
| { |
| return contentType; |
| } |
| |
| public DERUTF8String getContentDescription() |
| { |
| return contentDescription; |
| } |
| |
| /** |
| * <pre> |
| * ContentHints ::= SEQUENCE { |
| * contentDescription UTF8String (SIZE (1..MAX)) OPTIONAL, |
| * contentType ContentType } |
| * </pre> |
| */ |
| public ASN1Primitive toASN1Primitive() |
| { |
| ASN1EncodableVector v = new ASN1EncodableVector(); |
| |
| if (contentDescription != null) |
| { |
| v.add(contentDescription); |
| } |
| |
| v.add(contentType); |
| |
| return new DERSequence(v); |
| } |
| } |