source: java/net/deterlab/abac/CredentialFactory.java @ 797bebe

package net.deterlab.abac;

import java.io.*;

import java.util.*;


/**
 * XXX:
 * An ABAC credential, with or without an underlying certificate that
 * represents it.  These are edges in proof graphs and can be constructed from
 * their constituent Roles.
 * @author <a href="http://abac.deterlab.net">ISI ABAC team</a>
 * @version 1.3
 */
public class CredentialFactory {
    // XXX register and extend
    static Credential[] newInstance(File fn, Set<Identity> ids) {
        Credential rv = null;
        try {
            rv = new X509Credential(fn, ids);
        }
        catch (Exception e ) {
            rv = null;
        }
        try {
            rv = new GENICredential(fn, ids);
        }
        catch (Exception e ) {
            rv = null;
        }
        if ( rv != null ) 
            return new Credential[] { rv };
        else 
            return null;
    }
    static Credential[] newInstance(String fn, Set<Identity> ids) {
        return newInstance(new File(fn), ids);
    }
}