/*

 * Copyright (c) 2015, 2017, 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;

import java.net.URISyntaxException;

import java.net.URL;

/**

 * Represents an alternative catalog entry.

 *

 * @since 9

 */

class AltCatalog extends BaseEntry {

    URI catalogURI;

    AltCatalog(CatalogEntryType type, String base) {

        super(type, base);

    }

    /**

     * Set the catalog attribute. If the value of the catalog attribute is relative, it

     * must be made absolute with respect to the base URI currently in effect.

     *

     * @param catalog The catalog attribute value.

     * @throws CatalogException if converting to catalog URI failed

     */

    void setCatalog(String catalog) {

        URL url = verifyURI("catalog", baseURI, catalog);

        try {

            catalogURI = url.toURI();

        } catch (URISyntaxException ex) {

            CatalogMessages.reportRunTimeError(CatalogMessages.ERR_OTHER, ex);

        }

    }

    /**

     * Returns the catalog attribute as a URI String.

     * @return The value of the catalog attribute

     */

    String getCatalogId() {

        return catalogURI.toASCIIString();

    }

    /**

     * Returns the catalog attribute as a URI.

     * @return The value of the catalog attribute

     */

    URI getCatalogURI() {

        return catalogURI;

    }

    /**

     * Matches the specified id with the entry. Returns the match if it

     * is successful and the length of the start String is longer than the

     * longest of any previous match.

     *

     * @param id The id to be matched.

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

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

     */

    public URI matchURI(String id, int currentMatch) {

        return null;

    }

}