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/**
 * Copyright (C) 2011 - 101loops.com 
 *
 * 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.
 */
package com.crashnote.core.util;

import com.crashnote.core.model.data.DataObject;

import java.io.*;
import java.util.Date;

/**
 * Utility class to execute basic file system operations like reading and writing
 */
public class FileUtil {

    // INTERFACE ==================================================================================

    public File getOrCreate(final File f) {
        if (!f.exists()) f.mkdirs();
        return f;
    }

    public static File getTmpFolder() {
        return new File(getTmpFolderPath());
    }

    public static String getTmpFolderPath() {
        return makeFolderPath(System.getProperty("java.io.tmpdir"));
    }

    private static String makeFolderPath(final String path) {
        if (!(path.endsWith("/") || path.endsWith("\\")))
            return path + System.getProperty("file.separator");
        else
            return path;
    }

    /**
     * Return a list of absolute file paths inside a directory -
     * the result can be null if file is not a directory!
     */
    public String[] listFiles(final File dir) {
        return dir.list();
    }

    public int countFiles(final File dir) {
        final String[] files = listFiles(dir);
        return (files != null) ? files.length : 0;
    }

}