net.sourceforge.atunes.kernel.modules.repository.LocalAudioObjectValidator.java Source code

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Here is the source code for net.sourceforge.atunes.kernel.modules.repository.LocalAudioObjectValidator.java

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/*
 * aTunes
 * Copyright (C) Alex Aranda, Sylvain Gaudard and contributors
 *
 * See http://www.atunes.org/wiki/index.php?title=Contributing for information about contributors
 *
 * http://www.atunes.org
 * http://sourceforge.net/projects/atunes
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 for more details.
 */

package net.sourceforge.atunes.kernel.modules.repository;

import java.io.File;
import java.io.FileFilter;
import java.util.HashSet;
import java.util.Set;

import net.sourceforge.atunes.model.IFileManager;
import net.sourceforge.atunes.model.ILocalAudioObject;
import net.sourceforge.atunes.model.ILocalAudioObjectValidator;
import net.sourceforge.atunes.model.LocalAudioObjectFormat;

import org.apache.commons.io.FilenameUtils;

/**
 * Validates a file is a local audio object
 * 
 * @author alex
 * 
 */
public class LocalAudioObjectValidator implements ILocalAudioObjectValidator {

    private FileFilter validLocalAudioObjectFileFilter;

    private Set<String> extensions;

    private IFileManager fileManager;

    /**
     * @param fileManager
     */
    public void setFileManager(final IFileManager fileManager) {
        this.fileManager = fileManager;
    }

    /**
     * Initializes validator
     */
    public void initialize() {
        this.extensions = new HashSet<String>();
        for (LocalAudioObjectFormat format : LocalAudioObjectFormat.values()) {
            this.extensions.add(format.getExtension().toLowerCase());
        }
    }

    /**
     * @param validLocalAudioObjectFileFilter
     */
    public void setValidLocalAudioObjectFileFilter(final FileFilter validLocalAudioObjectFileFilter) {
        this.validLocalAudioObjectFileFilter = validLocalAudioObjectFileFilter;
    }

    /**
     * Checks if is valid audio file.
     * 
     * @param file
     *            the file
     * 
     * @return true, if is valid audio file
     */
    @Override
    public boolean isValidAudioFile(final String file) {
        return isValidAudioFile(new File(file));
    }

    /**
     * Checks if is valid audio file.
     * 
     * @param file
     *            the file
     * 
     * @return true, if is valid audio file
     */
    @Override
    public boolean isValidAudioFile(final File file) {
        return file != null && file.exists() && !file.isDirectory() && isOneOfValidFormats(file);
    }

    @Override
    public boolean isOneOfTheseFormats(final ILocalAudioObject localAudioObject,
            final LocalAudioObjectFormat... formats) {
        if (localAudioObject == null) {
            return false;
        }
        String extension = FilenameUtils.getExtension(this.fileManager.getFileName(localAudioObject));
        for (LocalAudioObjectFormat format : formats) {
            if (extension.equalsIgnoreCase(format.getExtension())) {
                return true;
            }
        }
        return false;
    }

    /**
     * Checks if a file is a valid audio file given its name This method does
     * not check if file exists or it's a directory or even if file is null
     * 
     * @param file
     * @return if the file is a valid audio file
     */
    @Override
    public boolean isOneOfValidFormats(final File file) {
        return this.extensions.contains(FilenameUtils.getExtension(file.getName()).toLowerCase());
    }

    @Override
    public FileFilter getValidLocalAudioObjectFileFilter() {
        return this.validLocalAudioObjectFileFilter;
    }
}