certificatefactory.java

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			    }
			});
		    implMethod2Set = new Boolean(true);
		}		
	    }
	}

	if (implMethod2 == null) {
	    throw new CertificateException(type + " not found");
	}

	try {
	    // The underlying method is static, so we set the object
	    // argument to null.
	    Object[] objs = (Object[])implMethod2.invoke(null,
					       new Object[]
					       { type,
						 "CertificateFactory",
						 provider
					       } );
	    return new CertificateFactory((CertificateFactorySpi)objs[0],
					  (Provider)objs[1], type);
	} catch (IllegalAccessException iae) {
	    CertificateException ce = new 
                       CertificateException(type + " not found");
	    ce.initCause(iae);
	    throw ce;
	} catch (InvocationTargetException ite) {
	    CertificateException ce = new 
                       CertificateException(type + " not found");
	    ce.initCause(ite);
	    throw ce;
	}
    }    
	    
    /**
     * Returns the provider of this certificate factory.
     *
     * @return the provider of this certificate factory.
     */
    public final Provider getProvider() {
	return this.provider;
    }

    /**
     * Returns the name of the certificate type associated with this
     * certificate factory.
     *
     * @return the name of the certificate type associated with this
     * certificate factory.
     */
    public final String getType() {
	return this.type;
    }

    /**
     * Generates a certificate object and initializes it with
     * the data read from the input stream <code>inStream</code>.
     *
     * <p>In order to take advantage of the specialized certificate format
     * supported by this certificate factory,
     * the returned certificate object can be typecast to the corresponding
     * certificate class. For example, if this certificate
     * factory implements X.509 certificates, the returned certificate object
     * can be typecast to the <code>X509Certificate</code> class.
     *
     * <p>In the case of a certificate factory for X.509 certificates, the
     * certificate provided in <code>inStream</code> must be DER-encoded and
     * may be supplied in binary or printable (Base64) encoding. If the
     * certificate is provided in Base64 encoding, it must be bounded at
     * the beginning by -----BEGIN CERTIFICATE-----, and must be bounded at
     * the end by -----END CERTIFICATE-----.
     *
     * <p>Note that if the given input stream does not support
     * {@link java.io.InputStream#mark(int) mark} and
     * {@link java.io.InputStream#reset() reset}, this method will
     * consume the entire input stream. Otherwise, each call to this 
     * method consumes one certificate and the read position of the
     * input stream is positioned to the next available byte after
     * the inherent end-of-certificate marker. If the data in the input stream
     * does not contain an inherent end-of-certificate marker (other
     * than EOF) and there is trailing data after the certificate is parsed, a 
     * <code>CertificateException</code> is thrown.
     *
     * @param inStream an input stream with the certificate data.
     *
     * @return a certificate object initialized with the data
     * from the input stream.
     *
     * @exception CertificateException on parsing errors.
     */
    public final Certificate generateCertificate(InputStream inStream)
        throws CertificateException
    {
	return certFacSpi.engineGenerateCertificate(inStream);
    }

    /**
     * Returns an iteration of the <code>CertPath</code> encodings supported 
     * by this certificate factory, with the default encoding first. See 
     * Appendix A in the 
     * <a href="../../../../guide/security/certpath/CertPathProgGuide.html#AppA">
     * Java Certification Path API Programmer's Guide</a> for information about 
     * standard encoding names and their formats. 
     * <p>
     * Attempts to modify the returned <code>Iterator</code> via its 
     * <code>remove</code> method result in an 
     * <code>UnsupportedOperationException</code>.
     *
     * @return an <code>Iterator</code> over the names of the supported
     *         <code>CertPath</code> encodings (as <code>String</code>s)
     * @since 1.4
     */
    public final Iterator getCertPathEncodings() {
        return(certFacSpi.engineGetCertPathEncodings());
    }

    /**
     * Generates a <code>CertPath</code> object and initializes it with
     * the data read from the <code>InputStream</code> inStream. The data
     * is assumed to be in the default encoding. The name of the default
     * encoding is the first element of the <code>Iterator</code> returned by
     * the {@link #getCertPathEncodings getCertPathEncodings} method.
     *
     * @param inStream an <code>InputStream</code> containing the data
     * @return a <code>CertPath</code> initialized with the data from the
     *   <code>InputStream</code>
     * @exception CertificateException if an exception occurs while decoding
     * @since 1.4
     */
    public final CertPath generateCertPath(InputStream inStream)
        throws CertificateException
    {
        return(certFacSpi.engineGenerateCertPath(inStream));
    }

    /**
     * Generates a <code>CertPath</code> object and initializes it with
     * the data read from the <code>InputStream</code> inStream. The data
     * is assumed to be in the specified encoding. See Appendix A in the 
     * <a href="../../../../guide/security/certpath/CertPathProgGuide.html#AppA">
     * Java Certification Path API Programmer's Guide</a>
     * for information about standard encoding names and their formats.
     *
     * @param inStream an <code>InputStream</code> containing the data
     * @param encoding the encoding used for the data
     * @return a <code>CertPath</code> initialized with the data from the
     *   <code>InputStream</code>
     * @exception CertificateException if an exception occurs while decoding or
     *   the encoding requested is not supported
     * @since 1.4
     */
    public final CertPath generateCertPath(InputStream inStream,
        String encoding) throws CertificateException
    {
        return(certFacSpi.engineGenerateCertPath(inStream, encoding));
    }

    /**
     * Generates a <code>CertPath</code> object and initializes it with
     * a <code>List</code> of <code>Certificate</code>s.
     * <p>
     * The certificates supplied must be of a type supported by the
     * <code>CertificateFactory</code>. They will be copied out of the supplied
     * <code>List</code> object.
     *
     * @param certificates a <code>List</code> of <code>Certificate</code>s
     * @return a <code>CertPath</code> initialized with the supplied list of
     *   certificates
     * @exception CertificateException if an exception occurs
     * @since 1.4
     */
    public final CertPath generateCertPath(List certificates)
        throws CertificateException
    {
        return(certFacSpi.engineGenerateCertPath(certificates));
    }

    /**
     * Returns a (possibly empty) collection view of the certificates read
     * from the given input stream <code>inStream</code>.
     *
     * <p>In order to take advantage of the specialized certificate format
     * supported by this certificate factory, each element in
     * the returned collection view can be typecast to the corresponding
     * certificate class. For example, if this certificate
     * factory implements X.509 certificates, the elements in the returned
     * collection can be typecast to the <code>X509Certificate</code> class.
     *
     * <p>In the case of a certificate factory for X.509 certificates,
     * <code>inStream</code> may contain a sequence of DER-encoded certificates
     * in the formats described for
     * {@link #generateCertificate(java.io.InputStream) generateCertificate}.
     * In addition, <code>inStream</code> may contain a PKCS#7 certificate
     * chain. This is a PKCS#7 <i>SignedData</i> object, with the only
     * significant field being <i>certificates</i>. In particular, the
     * signature and the contents are ignored. This format allows multiple
     * certificates to be downloaded at once. If no certificates are present,
     * an empty collection is returned.
     *
     * <p>Note that if the given input stream does not support
     * {@link java.io.InputStream#mark(int) mark} and
     * {@link java.io.InputStream#reset() reset}, this method will
     * consume the entire input stream.
     *
     * @param inStream the input stream with the certificates.
     *
     * @return a (possibly empty) collection view of
     * java.security.cert.Certificate objects
     * initialized with the data from the input stream.
     *
     * @exception CertificateException on parsing errors.
     */
    public final Collection generateCertificates(InputStream inStream)
        throws CertificateException
    {
	return certFacSpi.engineGenerateCertificates(inStream);
    }

    /**
     * Generates a certificate revocation list (CRL) object and initializes it
     * with the data read from the input stream <code>inStream</code>.
     *
     * <p>In order to take advantage of the specialized CRL format
     * supported by this certificate factory,
     * the returned CRL object can be typecast to the corresponding
     * CRL class. For example, if this certificate
     * factory implements X.509 CRLs, the returned CRL object
     * can be typecast to the <code>X509CRL</code> class.
     *
     * <p>Note that if the given input stream does not support
     * {@link java.io.InputStream#mark(int) mark} and
     * {@link java.io.InputStream#reset() reset}, this method will
     * consume the entire input stream. Otherwise, each call to this 
     * method consumes one CRL and the read position of the input stream
     * is positioned to the next available byte after the the inherent 
     * end-of-CRL marker. If the data in the
     * input stream does not contain an inherent end-of-CRL marker (other
     * than EOF) and there is trailing data after the CRL is parsed, a 
     * <code>CRLException</code> is thrown.
     *
     * @param inStream an input stream with the CRL data.
     *
     * @return a CRL object initialized with the data
     * from the input stream.
     *
     * @exception CRLException on parsing errors.
     */
    public final CRL generateCRL(InputStream inStream)
        throws CRLException
    {
	return certFacSpi.engineGenerateCRL(inStream);
    }

    /**
     * Returns a (possibly empty) collection view of the CRLs read
     * from the given input stream <code>inStream</code>.
     *
     * <p>In order to take advantage of the specialized CRL format
     * supported by this certificate factory, each element in
     * the returned collection view can be typecast to the corresponding
     * CRL class. For example, if this certificate
     * factory implements X.509 CRLs, the elements in the returned
     * collection can be typecast to the <code>X509CRL</code> class.
     *
     * <p>In the case of a certificate factory for X.509 CRLs,
     * <code>inStream</code> may contain a sequence of DER-encoded CRLs.
     * In addition, <code>inStream</code> may contain a PKCS#7 CRL
     * set. This is a PKCS#7 <i>SignedData</i> object, with the only
     * significant field being <i>crls</i>. In particular, the
     * signature and the contents are ignored. This format allows multiple
     * CRLs to be downloaded at once. If no CRLs are present,
     * an empty collection is returned.
     *
     * <p>Note that if the given input stream does not support
     * {@link java.io.InputStream#mark(int) mark} and
     * {@link java.io.InputStream#reset() reset}, this method will
     * consume the entire input stream.
     *
     * @param inStream the input stream with the CRLs.
     *
     * @return a (possibly empty) collection view of
     * java.security.cert.CRL objects initialized with the data from the input
     * stream.
     *
     * @exception CRLException on parsing errors.
     */
    public final Collection generateCRLs(InputStream inStream)
        throws CRLException
    {
	return certFacSpi.engineGenerateCRLs(inStream);
    }
}