com.ikon.util.FileUtils.java Source code

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Here is the source code for com.ikon.util.FileUtils.java

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/**
 *  openkm, Open Document Management System (http://www.openkm.com)
 *  Copyright (c) 2006-2013  Paco Avila & Josep Llort
 *
 *  No bytes were intentionally harmed during the development of this application.
 *
 *  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.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

package com.ikon.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;

import org.apache.commons.io.IOUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.ikon.core.Config;
import com.ikon.core.DatabaseException;
import com.ikon.dao.MimeTypeDAO;
import com.ikon.dao.bean.MimeType;
import com.ikon.util.impexp.RepositoryImporter;

public class FileUtils {
    private static Logger log = LoggerFactory.getLogger(FileUtils.class);

    /**
     * Returns the name of the file without the extension.
     */
    public static String getFileName(String file) {
        log.debug("getFileName({})", file);
        int idx = file.lastIndexOf(".");
        String ret = idx >= 0 ? file.substring(0, idx) : file;
        log.debug("getFileName: {}", ret);
        return ret;
    }

    /**
     * Returns the filename extension.
     */
    public static String getFileExtension(String file) {
        log.debug("getFileExtension({})", file);
        int idx = file.lastIndexOf(".");
        String ret = idx >= 0 ? file.substring(idx + 1) : "";
        log.debug("getFileExtension: {}", ret);
        return ret;
    }

    /**
     * Creates a temporal and unique directory
     * 
     * @throws IOException If something fails.
     */
    public static File createTempDir() throws IOException {
        File tmpFile = File.createTempFile("okm", null);

        if (!tmpFile.delete())
            throw new IOException();
        if (!tmpFile.mkdir())
            throw new IOException();
        return tmpFile;
    }

    /**
     * Create temp file
     */
    public static File createTempFile() throws IOException {
        return File.createTempFile("okm", ".tmp");
    }

    /**
     * Create temp file with extension from mime
     */
    public static File createTempFileFromMime(String mimeType) throws DatabaseException, IOException {
        MimeType mt = MimeTypeDAO.findByName(mimeType);
        String ext = mt.getExtensions().iterator().next();
        return File.createTempFile("okm", "." + ext);
    }

    /**
     * Wrapper for FileUtils.deleteQuietly
     * 
     * @param file File or directory to be deleted.
     */
    public static boolean deleteQuietly(File file) {
        return org.apache.commons.io.FileUtils.deleteQuietly(file);
    }

    /**
     * Delete directory if empty
     */
    public static void deleteEmpty(File file) {
        if (file.isDirectory()) {
            if (file.list().length == 0) {
                file.delete();
            }
        }
    }

    /**
     * Count files and directories from a selected directory.
     */
    public static int countFiles(File dir) {
        File[] found = dir.listFiles();
        int ret = 0;

        if (found != null) {
            for (int i = 0; i < found.length; i++) {
                if (found[i].isDirectory()) {
                    ret += countFiles(found[i]);
                }

                ret++;
            }
        }

        return ret;
    }

    /**
     * Count files and directories from a selected directory.
     * This version exclude .okm files
     */
    public static int countImportFiles(File dir) {
        File[] found = dir.listFiles(new RepositoryImporter.NoVersionFilenameFilter());
        int ret = 0;

        if (found != null) {
            for (int i = 0; i < found.length; i++) {
                //log.info("File: {}", found[i].getPath());

                if (found[i].isDirectory()) {
                    ret += countImportFiles(found[i]);
                }

                // NAND
                if (!(found[i].isFile() && found[i].getName().toLowerCase().endsWith(Config.EXPORT_METADATA_EXT))) {
                    ret++;
                }
            }
        }

        return ret;
    }

    /**
     * Copy InputStream to File.
     */
    public static void copy(InputStream input, File output) throws IOException {
        FileOutputStream fos = new FileOutputStream(output);
        IOUtils.copy(input, fos);
        fos.flush();
        fos.close();
    }

    /**
     * Copy Reader to File.
     */
    public static void copy(Reader input, File output) throws IOException {
        FileOutputStream fos = new FileOutputStream(output);
        IOUtils.copy(input, fos);
        fos.flush();
        fos.close();
    }

    /**
     * Copy File to OutputStream
     */
    public static void copy(File input, OutputStream output) throws IOException {
        FileInputStream fis = new FileInputStream(input);
        IOUtils.copy(fis, output);
        fis.close();
    }

    /**
     * Copy File to File
     */
    public static void copy(File input, File output) throws IOException {
        org.apache.commons.io.FileUtils.copyFile(input, output);
    }
}