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package sun.security.x509;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;

import javax.security.auth.x500.X500Principal;

import sun.security.util.*;

This class defines the X500Name attribute for the Certificate.
Author:Amit Kapoor, Hemma Prafullchandra
See Also:
/** * This class defines the X500Name attribute for the Certificate. * * @author Amit Kapoor * @author Hemma Prafullchandra * @see CertAttrSet */
public class CertificateIssuerName implements CertAttrSet<String> {
Identifier for this attribute, to be used with the get, set, delete methods of Certificate, x509 type.
/** * Identifier for this attribute, to be used with the * get, set, delete methods of Certificate, x509 type. */
public static final String IDENT = "x509.info.issuer";
Sub attributes name for this CertAttrSet.
/** * Sub attributes name for this CertAttrSet. */
public static final String NAME = "issuer"; public static final String DN_NAME = "dname"; // accessor name for cached X500Principal only // do not allow a set() of this value, do not advertise with getElements() public static final String DN_PRINCIPAL = "x500principal"; // Private data member private X500Name dnName; // cached X500Principal version of the name private X500Principal dnPrincipal;
Default constructor for the certificate attribute.
Params:
  • name – the X500Name
/** * Default constructor for the certificate attribute. * * @param name the X500Name */
public CertificateIssuerName(X500Name name) { this.dnName = name; }
Create the object, decoding the values from the passed DER stream.
Params:
  • in – the DerInputStream to read the X500Name from.
Throws:
/** * Create the object, decoding the values from the passed DER stream. * * @param in the DerInputStream to read the X500Name from. * @exception IOException on decoding errors. */
public CertificateIssuerName(DerInputStream in) throws IOException { dnName = new X500Name(in); }
Create the object, decoding the values from the passed stream.
Params:
  • in – the InputStream to read the X500Name from.
Throws:
/** * Create the object, decoding the values from the passed stream. * * @param in the InputStream to read the X500Name from. * @exception IOException on decoding errors. */
public CertificateIssuerName(InputStream in) throws IOException { DerValue derVal = new DerValue(in); dnName = new X500Name(derVal); }
Return the name as user readable string.
/** * Return the name as user readable string. */
public String toString() { if (dnName == null) return ""; return(dnName.toString()); }
Encode the name in DER form to the stream.
Params:
  • out – the DerOutputStream to marshal the contents to.
Throws:
/** * Encode the name in DER form to the stream. * * @param out the DerOutputStream to marshal the contents to. * @exception IOException on errors. */
public void encode(OutputStream out) throws IOException { DerOutputStream tmp = new DerOutputStream(); dnName.encode(tmp); out.write(tmp.toByteArray()); }
Set the attribute value.
/** * Set the attribute value. */
public void set(String name, Object obj) throws IOException { if (!(obj instanceof X500Name)) { throw new IOException("Attribute must be of type X500Name."); } if (name.equalsIgnoreCase(DN_NAME)) { this.dnName = (X500Name)obj; this.dnPrincipal = null; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:CertificateIssuerName."); } }
Get the attribute value.
/** * Get the attribute value. */
public Object get(String name) throws IOException { if (name.equalsIgnoreCase(DN_NAME)) { return(dnName); } else if (name.equalsIgnoreCase(DN_PRINCIPAL)) { if ((dnPrincipal == null) && (dnName != null)) { dnPrincipal = dnName.asX500Principal(); } return dnPrincipal; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:CertificateIssuerName."); } }
Delete the attribute value.
/** * Delete the attribute value. */
public void delete(String name) throws IOException { if (name.equalsIgnoreCase(DN_NAME)) { dnName = null; dnPrincipal = null; } else { throw new IOException("Attribute name not recognized by " + "CertAttrSet:CertificateIssuerName."); } }
Return an enumeration of names of attributes existing within this attribute.
/** * Return an enumeration of names of attributes existing within this * attribute. */
public Enumeration<String> getElements() { AttributeNameEnumeration elements = new AttributeNameEnumeration(); elements.addElement(DN_NAME); return (elements.elements()); }
Return the name of this attribute.
/** * Return the name of this attribute. */
public String getName() { return(NAME); } }