se.natusoft.doc.markdown.parser.ParserProvider.groovy Maven / Gradle / Ivy

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/* 
 * 
 * PROJECT
 *     Name
 *         MarkdownDoc Library
 *     
 *     Code Version
 *         1.2.9
 *     
 *     Description
 *         Parses markdown and generates HTML and PDF.
 *         
 * COPYRIGHTS
 *     Copyright (C) 2012 by Natusoft AB All rights reserved.
 *     
 * LICENSE
 *     Apache 2.0 (Open Source)
 *     
 *     Licensed under the Apache License, Version 2.0 (the "License");
 *     you may not use this file except in compliance with the License.
 *     You may obtain a copy of the License at
 *     
 *       http://www.apache.org/licenses/LICENSE-2.0
 *     
 *     Unless required by applicable law or agreed to in writing, software
 *     distributed under the License is distributed on an "AS IS" BASIS,
 *     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *     See the License for the specific language governing permissions and
 *     limitations under the License.
 *     
 * AUTHORS
 *     Tommy Svensson ([email protected])
 *         Changes:
 *         2013-02-02: Created!
 *         
 */
package se.natusoft.doc.markdown.parser

import se.natusoft.doc.markdown.api.Parser

/**
 * Provides a parser depending on file extension.
 */
class ParserProvider {

    /**
     * Returns a valid parser for the file or null if none match.
     *
     * @param ext The file to get a parser for.
     *
     * @return A parser or null.
     */
    public static Parser getParserForFile(File file) {
        return getParserForFile(file.getName())
    }

    /**
     * Returns a valid parser for the file or null if none match.
     *
     * @param ext The file to get a parser for.
     *
     * @return A parser or null.
     */
    public static Parser getParserForFile(String file) {
        Parser parser = null

        ServiceLoader parserLoader = ServiceLoader.load(Parser.class);
        for (Parser loadedParser : parserLoader) {
            if (loadedParser.validFileExtension(file)) {
                parser = loadedParser
                break
            }
        }

        return parser;
    }

}