iaik.pkcs.pkcs11.objects.LongAttribute Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of sunpkcs11-wrapper
PKCS#11 wrapper based on sunpkcs11
There is a newer version: 1.4.10
// Copyright (c) 2002 Graz University of Technology. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
//    this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
//
// 3. The end-user documentation included with the redistribution, if any, must
//    include the following acknowledgment:
//
//    "This product includes software developed by IAIK of Graz University of
//     Technology."
//
//    Alternately, this acknowledgment may appear in the software itself, if and
//    wherever such third-party acknowledgments normally appear.
//
// 4. The names "Graz University of Technology" and "IAIK of Graz University of
//    Technology" must not be used to endorse or promote products derived from
//    this software without prior written permission.
//
// 5. Products derived from this software may not be called "IAIK PKCS Wrapper",
//    nor may "IAIK" appear in their name, without prior written permission of
//    Graz University of Technology.
//
// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE LICENSOR BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
// OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
// OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

package iaik.pkcs.pkcs11.objects;

/**
 * Objects of this class represent a long attribute of an PKCS#11 object
 * as specified by PKCS#11.
 *
 * @author  Karl Scheibelhofer 
 * @version 1.0
 * @invariants
 */
public class LongAttribute extends Attribute {

    /**
     * Default constructor - only for internal use in
     * AttributeArrayAttribute.getValueString().
     */
    LongAttribute() {
        super();
    }

    /**
     * Constructor taking the PKCS#11 type of the attribute.
     *
     * @param type
     *          The PKCS#11 type of this attribute; e.g.
     *          PKCS11Constants.CKA_VALUE_LEN.
     * @preconditions (type <> null)
     * @postconditions
     */
    public LongAttribute(Long type) {
        super(type);
    }

    /**
     * Set the long value of this attribute. Null, is also valid.
     * A call to this method sets the present flag to true.
     *
     * @param value
     *          The long value to set. May be null.
     * @preconditions
     * @postconditions
     */
    @SuppressWarnings("restriction")
    public void setLongValue(Long value) {
        ckAttribute_.pValue = value;
        present_ = true;
    }

    /**
     * Get the long value of this attribute. Null, is also possible.
     *
     * @return The long value of this attribute or null.
     * @preconditions
     * @postconditions
     */
    @SuppressWarnings("restriction")
    public Long getLongValue() {
        return (Long) ckAttribute_.pValue;
    }

    /**
     * Get a string representation of the value of this attribute. The radix
     * for the presentation can be specified; e.g. 16 for hex, 10 for decimal.
     *
     * @param radix
     *          The radix for the representation of the value.
     * @return A string representation of the value of this attribute.
     * @preconditions
     * @postconditions (result <> null)
     */
    @SuppressWarnings("restriction")
    protected String getValueString(int radix) {
        String valueString;

        if ((ckAttribute_ != null) && (ckAttribute_.pValue != null)) {
            valueString = Long.toString(
                    ((Long) ckAttribute_.pValue).longValue(), radix);
        } else {
            valueString = "";
        }

        return valueString;
    }

    /**
     * Get a string representation of this attribute. The radix for the
     * presentation of the value can be specified; e.g. 16 for hex, 10 for
     * decimal.
     *
     * @param radix
     *          The radix for the representation of the value.
     * @return A string representation of the value of this attribute.
     * @preconditions
     * @postconditions (result <> null)
     */
    public String toString(int radix) {
        StringBuilder buffer = new StringBuilder(32);

        if (present_) {
            if (sensitive_) {
                buffer.append("");
            } else {
                buffer.append(getValueString(radix));
            }
        } else {
            buffer.append("");
        }

        return buffer.toString();
    }

    @Override
    public void setValue(java.lang.Object value)
        throws UnsupportedOperationException {
        setLongValue((Long) value);
    }

}