001package org.apache.commons.ssl.org.bouncycastle.asn1.cmp;
002
003import java.util.Enumeration;
004
005import org.apache.commons.ssl.org.bouncycastle.asn1.ASN1EncodableVector;
006import org.apache.commons.ssl.org.bouncycastle.asn1.ASN1Object;
007import org.apache.commons.ssl.org.bouncycastle.asn1.ASN1Primitive;
008import org.apache.commons.ssl.org.bouncycastle.asn1.ASN1Sequence;
009import org.apache.commons.ssl.org.bouncycastle.asn1.ASN1TaggedObject;
010import org.apache.commons.ssl.org.bouncycastle.asn1.DERSequence;
011import org.apache.commons.ssl.org.bouncycastle.asn1.DERUTF8String;
012
013public class PKIFreeText
014    extends ASN1Object
015{
016    ASN1Sequence strings;
017
018    public static PKIFreeText getInstance(
019        ASN1TaggedObject    obj,
020        boolean             explicit)
021    {
022        return getInstance(ASN1Sequence.getInstance(obj, explicit));
023    }
024
025    public static PKIFreeText getInstance(
026        Object obj)
027    {
028        if (obj instanceof PKIFreeText)
029        {
030            return (PKIFreeText)obj;
031        }
032        else if (obj != null)
033        {
034            return new PKIFreeText(ASN1Sequence.getInstance(obj));
035        }
036
037        return null;
038    }
039
040    private PKIFreeText(
041        ASN1Sequence seq)
042    {
043        Enumeration e = seq.getObjects();
044        while (e.hasMoreElements())
045        {
046            if (!(e.nextElement() instanceof DERUTF8String))
047            {
048                throw new IllegalArgumentException("attempt to insert non UTF8 STRING into PKIFreeText");
049            }
050        }
051        
052        strings = seq;
053    }
054
055    public PKIFreeText(
056        DERUTF8String p)
057    {
058        strings = new DERSequence(p);
059    }
060
061    public PKIFreeText(
062        String p)
063    {
064        this(new DERUTF8String(p));
065    }
066
067    public PKIFreeText(
068        DERUTF8String[] strs)
069    {
070        strings = new DERSequence(strs);
071    }
072
073    public PKIFreeText(
074        String[] strs)
075    {
076        ASN1EncodableVector v = new ASN1EncodableVector();
077        for (int i = 0; i < strs.length; i++)
078        {
079            v.add(new DERUTF8String(strs[i]));
080        }
081        strings = new DERSequence(v);
082    }
083
084    /**
085     * Return the number of string elements present.
086     * 
087     * @return number of elements present.
088     */
089    public int size()
090    {
091        return strings.size();
092    }
093    
094    /**
095     * Return the UTF8STRING at index i.
096     * 
097     * @param i index of the string of interest
098     * @return the string at index i.
099     */
100    public DERUTF8String getStringAt(
101        int i)
102    {
103        return (DERUTF8String)strings.getObjectAt(i);
104    }
105    
106    /**
107     * <pre>
108     * PKIFreeText ::= SEQUENCE SIZE (1..MAX) OF UTF8String
109     * </pre>
110     */
111    public ASN1Primitive toASN1Primitive()
112    {
113        return strings;
114    }
115}