org.apache.geronimo.util.asn1.x509
Class X509NameEntryConverter

java.lang.Object
  org.apache.geronimo.util.asn1.x509.X509NameEntryConverter

Direct Known Subclasses:

X509DefaultEntryConverter

public abstract class X509NameEntryConverter
extends Object

It turns out that the number of standard ways the fields in a DN should be encoded into their ASN.1 counterparts is rapidly approaching the number of machines on the internet. By default the X509Name class will produce PrintableStrings if the field value will decode to that, next UTF8Strings if the field value will decode to that, and finally BMPStrings if 16 bit characters are required.

The way this is done is with a default encoder which is implemented as follows:

 public class X509DefaultEntryConverter
     extends X509NameEntryConverter
 {
     public DERObject getConvertedValue(
         DERObjectIdentifier  oid,
         String               value)
     {
         if (str.length() != 0 && str.charAt(0) == '#')
         {
             return convertHexEncoded(str, 1);
         }
         if (oid.equals(EmailAddress))
         {
             return new DERIA5String(str);
         }
         else if (canBePrintable(str))
         {
             return new DERPrintableString(str);
         }
         else if (canBeUTF8(str))
         {
             return new DERUTF8String(str);
         }
         else
         {
             return new DERBMPString(str);
         }
     }
 }










Constructor Summary
X509NameEntryConverter()



           
 



Method Summary




protected  boolean
canBePrintable(String str)



          return true if the passed in String can be represented without
 loss as a PrintableString, false otherwise.



protected  boolean
canBeUTF8(String str)



          return true if the passed in String can be represented without
 loss as a UTF8String, false otherwise.



protected  DERObject
convertHexEncoded(String str,
                                   int off)



          Convert an inline encoded hex string rendition of an ASN.1
 object back into its corresponding ASN.1 object.



abstract  DERObject
getConvertedValue(DERObjectIdentifier oid,
                                   String value)



          Convert the passed in String value into the appropriate ASN.1
 encoded object.


 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 





Constructor Detail



X509NameEntryConverter
public X509NameEntryConverter()






Method Detail



convertHexEncoded
protected DERObject convertHexEncoded(String str,
                                      int off)
                               throws IOException

Convert an inline encoded hex string rendition of an ASN.1
 object back into its corresponding ASN.1 object.


Parameters:
str - the hex encoded object
off - the index at which the encoding starts
Returns:
the decoded object
Throws:
IOException





canBePrintable
protected boolean canBePrintable(String str)

return true if the passed in String can be represented without
 loss as a PrintableString, false otherwise.








canBeUTF8
protected boolean canBeUTF8(String str)

return true if the passed in String can be represented without
 loss as a UTF8String, false otherwise.








getConvertedValue
public abstract DERObject getConvertedValue(DERObjectIdentifier oid,
                                            String value)

Convert the passed in String value into the appropriate ASN.1
 encoded object.


Parameters:
oid - the oid associated with the value in the DN.
value - the value of the particular DN component.
Returns:
the ASN.1 equivalent for the value.