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UserNotice.java

package org.bouncycastle.asn1.x509;

import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.DERSequence;

/**
 * <code>UserNotice</code> class, used in
 * <code>CertificatePolicies</code> X509 extensions (in policy
 * qualifiers).
 * <pre>
 * UserNotice ::= SEQUENCE {
 *      noticeRef        NoticeReference OPTIONAL,
 *      explicitText     DisplayText OPTIONAL}
 *
 * </pre>
 * 
 * @see PolicyQualifierId
 * @see PolicyInformation
 */
00023 public class UserNotice 
    extends ASN1Encodable 
{
    private NoticeReference noticeRef;
    private DisplayText     explicitText;
   
    /**
     * Creates a new <code>UserNotice</code> instance.
     *
     * @param noticeRef a <code>NoticeReference</code> value
     * @param explicitText a <code>DisplayText</code> value
     */
00035     public UserNotice(
        NoticeReference noticeRef, 
        DisplayText explicitText) 
    {
        this.noticeRef = noticeRef;
        this.explicitText = explicitText;
    }

    /**
     * Creates a new <code>UserNotice</code> instance.
     *
     * @param noticeRef a <code>NoticeReference</code> value
     * @param str the explicitText field as a String. 
     */
00049     public UserNotice(
        NoticeReference noticeRef, 
        String str) 
    {
        this.noticeRef = noticeRef;
        this.explicitText = new DisplayText(str);
    }

   /**
    * Creates a new <code>UserNotice</code> instance.
    * <p>Useful from reconstructing a <code>UserNotice</code> instance
    * from its encodable/encoded form. 
    *
    * @param as an <code>ASN1Sequence</code> value obtained from either
    * calling @{link toASN1Object()} for a <code>UserNotice</code>
    * instance or from parsing it from a DER-encoded stream. 
    */
00066    public UserNotice(
       ASN1Sequence as) 
   {
       if (as.size() == 2)
       {
           noticeRef = NoticeReference.getInstance(as.getObjectAt(0));
           explicitText = DisplayText.getInstance(as.getObjectAt(1));
       }
       else if (as.size() == 1)
       {
           if (as.getObjectAt(0).getDERObject() instanceof ASN1Sequence)
           {
               noticeRef = NoticeReference.getInstance(as.getObjectAt(0));
           }
           else
           {
               explicitText = DisplayText.getInstance(as.getObjectAt(0));
           }
       }
    }
   
    public NoticeReference getNoticeRef()
    {
        return noticeRef;
    }
    
    public DisplayText getExplicitText()
    {
        return explicitText;
    }
    
    public DERObject toASN1Object() 
    {
        ASN1EncodableVector av = new ASN1EncodableVector();
      
        if (noticeRef != null)
        {
            av.add(noticeRef);
        }
        
        if (explicitText != null)
        {
            av.add(explicitText);
        }
         
        return new DERSequence(av);
    }
}

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