com.ucb.stylometer.parser.StylemeterParser.java Source code

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Here is the source code for com.ucb.stylometer.parser.StylemeterParser.java

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/*
 * The MIT License
 *
 * Copyright 2014 Filipe Sateles <filipe.sateles@outlook.com>.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.ucb.stylometer.parser;

import java.io.File;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.commons.io.FilenameUtils;

/**
 *
 * @author Filipe Sateles <filipe.sateles@outlook.com>
 */
public class StylemeterParser {

    private final String filePath;

    public StylemeterParser(String filePath) {
        this.filePath = filePath;

        checkFileExistence();
    }

    public String parse() {
        String fileExtension, sample = null;

        try {
            fileExtension = FilenameUtils.getExtension(filePath);
            switch (fileExtension) {
            case "txt":
                sample = new TXTParser().parse(filePath);
                break;
            default:
                throw new UnsupportedOperationException("There is no parser for this type of file.");
            }
        } catch (UnsupportedOperationException ex) {
            Logger.getLogger(StylemeterParser.class.getName()).log(Level.SEVERE, "File parsing failed.", ex);
        }

        return sample;
    }

    private void checkFileExistence() {
        File file;
        try {
            file = new File(filePath);
            if (!file.exists() || file.isDirectory()) {
                throw new IllegalArgumentException(filePath + " does not exists or is not a file.");
            }
        } catch (IllegalArgumentException ex) {
            Logger.getLogger(StylemeterParser.class.getName()).log(Level.SEVERE, "File parsing failed.", ex);
        }
    }
}