jtulach@47: /*
jtulach@47:  * To change this template, choose Tools | Templates
jtulach@47:  * and open the template in the editor.
jtulach@47:  */
jtulach@47: 
jtulach@47: package org.apidesign.api.security;
jtulach@47: 
jtulach@47: import java.nio.ByteBuffer;
jtulach@47: import org.apidesign.spi.security.Digestor;
jtulach@47: 
jtulach@47: /**
jtulach@47:  *
jtulach@47:  * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jtulach@47:  */
jtulach@301: // BEGIN: day.end.bridges.DigestImpl
jtulach@301: final class DigestImpl<Data> {
jtulach@376:     private static final DigestorAccessorImpl ACCESSOR;
jtulach@376:     static {
jtulach@376:         ACCESSOR = new DigestorAccessorImpl();
jtulach@376:     }
jtulach@47:     
jtulach@47:     private final Digestor<Data> digestor;
jtulach@47:     private final String algorithm;
jtulach@47:     private Data data;
jtulach@47:     
jtulach@301:     private DigestImpl(Digestor<Data> digestor, String algorithm, Data d) {
jtulach@47:         this.digestor = digestor;
jtulach@47:         this.algorithm = algorithm;
jtulach@47:         this.data = d;
jtulach@47:     }
jtulach@47:     
jtulach@302:     static <Data> DigestImpl create(
jtulach@302:         Digestor<Data> digestor, String algorithm
jtulach@302:     ) {
jtulach@301:         // indirectly calls digestor.create(algorithm)
jtulach@47:         Data d = ACCESSOR.create(digestor, algorithm);
jtulach@47:         if (d == null) {
jtulach@47:             return null;
jtulach@47:         } else {
jtulach@301:             return new DigestImpl(digestor, algorithm, d);
jtulach@47:         }
jtulach@47:     }
jtulach@47: 
jtulach@47:     byte[] digest(ByteBuffer bb) {
jtulach@301:         // indirectly calls digestor.update(data, bb)
jtulach@47:         ACCESSOR.update(digestor, data, bb);
jtulach@301:         // indirectly calls digestor.digest(data)
jtulach@47:         return ACCESSOR.digest(digestor, data);
jtulach@47:     }
jtulach@47: }
jtulach@301: // END: day.end.bridges.DigestImpl