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• PathTemplate.java

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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
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 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 */
package org.glassfish.jersey.uri;

import org.glassfish.jersey.uri.internal.UriTemplateParser;

/**
 * A URI template for a URI path.
 *
 * @author Paul Sandoz
 * @author Yegor Bugayenko (yegor256 at java.net)
 */
public final class PathTemplate extends UriTemplate {

    /**
     * Internal parser of this PathTemplate.
     * @see #PathTemplate(String)
     */
    private static final class PathTemplateParser extends UriTemplateParser {

        /**
         * Public constructor.
         *
         * @param path the URI path template
         */
        public PathTemplateParser(final String path) {
            super(path);
        }

        @Override
        protected String encodeLiteralCharacters(final String literalCharacters) {

            return UriComponent.contextualEncode(
                    literalCharacters,
                    UriComponent.Type.PATH);
        }
    }

    /**
     * Create a URI path template and encode (percent escape) any characters of
     * the template that are not valid URI characters. Paths that don't start with
     * a slash ({@code '/'}) will be automatically prefixed with one.
     *
     * @param path the URI path template.
     */
    public PathTemplate(final String path) {
        super(new PathTemplateParser(PathTemplate.prefixWithSlash(path)));
    }

    /**
     * Converts the path provided to a slash-leading form, no matter what is provided.
     *
     * @param path the URI path template.
     * @return slash-prefixed path.
     * @see #PathTemplate(String)
     */
    private static String prefixWithSlash(final String path) {
        return !path.isEmpty() && path.charAt(0) == '/' ? path : "/" + path;
    }
}