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      1 package org.bouncycastle.asn1.x509.qualified;
      2 
      3 import org.bouncycastle.asn1.ASN1Choice;
      4 import org.bouncycastle.asn1.ASN1Encodable;
      5 import org.bouncycastle.asn1.DEREncodable;
      6 import org.bouncycastle.asn1.DERInteger;
      7 import org.bouncycastle.asn1.DERObject;
      8 import org.bouncycastle.asn1.DERPrintableString;
      9 
     10 /**
     11  * The Iso4217CurrencyCode object.
     12  * <pre>
     13  * Iso4217CurrencyCode  ::=  CHOICE {
     14  *       alphabetic              PrintableString (SIZE 3), --Recommended
     15  *       numeric              INTEGER (1..999) }
     16  * -- Alphabetic or numeric currency code as defined in ISO 4217
     17  * -- It is recommended that the Alphabetic form is used
     18  * </pre>
     19  */
     20 public class Iso4217CurrencyCode
     21     extends ASN1Encodable
     22     implements ASN1Choice
     23 {
     24     final int ALPHABETIC_MAXSIZE = 3;
     25     final int NUMERIC_MINSIZE = 1;
     26     final int NUMERIC_MAXSIZE = 999;
     27 
     28     DEREncodable obj;
     29     int          numeric;
     30 
     31     public static Iso4217CurrencyCode getInstance(
     32         Object obj)
     33     {
     34         if (obj == null || obj instanceof Iso4217CurrencyCode)
     35         {
     36             return (Iso4217CurrencyCode)obj;
     37         }
     38 
     39         if (obj instanceof DERInteger)
     40         {
     41             DERInteger numericobj = DERInteger.getInstance(obj);
     42             int numeric = numericobj.getValue().intValue();
     43             return new Iso4217CurrencyCode(numeric);
     44         }
     45         else
     46         if (obj instanceof DERPrintableString)
     47         {
     48             DERPrintableString alphabetic = DERPrintableString.getInstance(obj);
     49             return new Iso4217CurrencyCode(alphabetic.getString());
     50         }
     51         throw new IllegalArgumentException("unknown object in getInstance");
     52     }
     53 
     54     public Iso4217CurrencyCode(
     55         int numeric)
     56     {
     57         if (numeric > NUMERIC_MAXSIZE || numeric < NUMERIC_MINSIZE)
     58         {
     59             throw new IllegalArgumentException("wrong size in numeric code : not in (" +NUMERIC_MINSIZE +".."+ NUMERIC_MAXSIZE +")");
     60         }
     61         obj = new DERInteger(numeric);
     62     }
     63 
     64     public Iso4217CurrencyCode(
     65         String alphabetic)
     66     {
     67         if (alphabetic.length() > ALPHABETIC_MAXSIZE)
     68         {
     69             throw new IllegalArgumentException("wrong size in alphabetic code : max size is " + ALPHABETIC_MAXSIZE);
     70         }
     71         obj = new DERPrintableString(alphabetic);
     72     }
     73 
     74     public boolean isAlphabetic()
     75     {
     76         return obj instanceof DERPrintableString;
     77     }
     78 
     79     public String getAlphabetic()
     80     {
     81         return ((DERPrintableString)obj).getString();
     82     }
     83 
     84     public int getNumeric()
     85     {
     86         return ((DERInteger)obj).getValue().intValue();
     87     }
     88 
     89     public DERObject toASN1Object()
     90     {
     91         return obj.getDERObject();
     92     }
     93 }
     94