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 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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 */

package java.security.cert;

import java.net.URI;

/**

 * Parameters used as input for {@code CertStore} algorithms which use

 * information contained in a URI to retrieve certificates and CRLs.

 * <p>

 * This class is used to provide necessary configuration parameters

 * through a URI as defined in RFC 5280 to implementations of

 * {@code CertStore} algorithms.

 * <p>

 * <b>Concurrent Access</b>

 * <p>

 * Unless otherwise specified, the methods defined in this class are not

 * thread-safe. Multiple threads that need to access a single

 * object concurrently should synchronize amongst themselves and

 * provide the necessary locking. Multiple threads each manipulating

 * separate objects need not synchronize.

 *

 * @since       1.9

 * @see         CertStore

 * @see         java.net.URI

 */

public final class URICertStoreParameters implements CertStoreParameters {

    /**

     * The uri, cannot be null

     */

    private final URI uri;

    /*

     * Hash code for this parameters.

     */

    private int myhash = -1;

    /**

     * Creates an instance of {@code URICertStoreParameters} with the

     * specified URI.

     *

     * @param uri the URI which contains configuration information.

     * @throws NullPointerException if {@code uri} is null

     */

    public URICertStoreParameters(URI uri) {

        if (uri == null) {

            throw new NullPointerException();

        }

        this.uri = uri;

    }

    /**

     * Returns the URI used to construct this

     * {@code URICertStoreParameters} object.

     *

     * @return the URI.

     */

    public URI getURI() {

        return uri;

    }

    /**

     * Returns a copy of this object. Changes to the copy will not affect

     * the original and vice versa.

     *

     * @return the copy

     */

    @Override

    public URICertStoreParameters clone() {

        try {

            return new URICertStoreParameters(uri);

        } catch (NullPointerException e) {

            /* Cannot happen */

            throw new InternalError(e.toString(), e);

        }

    }

    /**

     * Returns a hash code value for this parameters object.

     * The hash code is generated using the URI supplied at construction.

     *

     * @return a hash code value for this parameters.

     */

    @Override

    public int hashCode() {

        if (myhash == -1) {

            myhash = uri.hashCode()*7;

        }

        return myhash;

    }

    /**

     * Compares the specified object with this parameters object for equality.

     * Two URICertStoreParameters are considered equal if the URIs used

     * to construct them are equal.

     *

     * @param p the object to test for equality with this parameters.

     *

     * @return true if the specified object is equal to this parameters object.

     */

    @Override

    public boolean equals(Object p) {

        if (p == null || (!(p instanceof URICertStoreParameters))) {

            return false;

        }

        if (p == this) {

            return true;

        }

        URICertStoreParameters other = (URICertStoreParameters)p;

        return uri.equals(other.getURI());

    }

    /**

     * Returns a formatted string describing the parameters

     * including the URI used to construct this object.

     *

     * @return a formatted string describing the parameters

     */

    @Override

    public String toString() {

        return "URICertStoreParameters: " + uri.toString();

    }

}