/*

 * 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 javax.xml.catalog;

import java.net.URI;

/**

 * Represents a delegateURI entry.

 *

 * @since 9

 */

final class DelegateUri extends AltCatalog {

    String uriStartString;

    /**

     * Construct a delegateURI entry.

     * @param uriStartString The uriStartString attribute.

     * @param catalog The catalog attribute.

     */

    public DelegateUri(String base, String uriStartString, String catalog) {

        super(CatalogEntryType.DELEGATEURI, base);

        setURIStartString (uriStartString);

        setCatalog(catalog);

    }

    /**

     * Set the uriStartString attribute.

     *

     * @param uriStartString The uriStartString attribute value.

     */

    public void setURIStartString (String uriStartString) {

        CatalogMessages.reportNPEOnNull("uriStartString", uriStartString);

        this.uriStartString = Normalizer.normalizeURI(uriStartString);

        setMatchId(this.uriStartString);

    }

    /**

     * Get the uriStartString attribute.

     * @return The uriStartString

     */

    public String getURIStartString () {

        return uriStartString;

    }

    /**

     * Try to match the specified systemId with the entry.

     *

     * @param systemId The systemId to be matched.

     * @return The URI of the catalog.

     */

    @Override

    public String match(String systemId) {

        return match(systemId, 0);

    }

    /**

     * Matches the specified systemId with the entry. Return the match if it

     * is successful and the length of the uriStartString is longer than the

     * longest of any previous match.

     *

     * @param systemId The systemId to be matched.

     * @param currentMatch The length of uriStartString of previous match if any.

     * @return The replacement URI if the match is successful, null if not.

     */

    @Override

    public URI matchURI(String systemId, int currentMatch) {

        if (uriStartString.length() <= systemId.length() &&

                uriStartString.equals(systemId.substring(0, uriStartString.length()))) {

            if (currentMatch < uriStartString.length()) {

                return catalogURI;

            }

        }

        return null;

    }

}