Subversion Repositories bacoAlunos

package jomm.utils;

import org.apache.log4j.Logger;

import java.io.*;

import java.net.URISyntaxException;

import java.net.URL;

import java.net.URLDecoder;

import java.security.DigestInputStream;

import java.security.MessageDigest;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

import java.util.zip.ZipOutputStream;

/**

 * @author Jorge Machado

 * @date 20/Jun/2008

 * @see jomm.utils

 */

public class FilesUtils

{

    private static final 1.5.0/docs/api/java/util/logging/Logger.html">Logger logger = 1.5.0/docs/api/java/util/logging/Logger.html">Logger.getLogger(FilesUtils.class);

    public static 1.5.0/docs/api/java/lang/String.html">String getExtension(1.5.0/docs/api/java/lang/String.html">String filename)

    {

        1.5.0/docs/api/java/lang/String.html">String extension = "";

        if(filename == null)

            return extension;

        if(filename.indexOf(".")>=0)

            extension = filename.substring(filename.lastIndexOf(".") + 1);

        return extension;

    }

    public static void copy(5+0%2Fdocs%2Fapi+InputStream">InputStream src, 1.5.0/docs/api/java/lang/String.html">String outputPath) throws 1.5.0/docs/api/java/io/IOException.html">IOException

    {

        1.5.0/docs/api/java/io/FileOutputStream.html">FileOutputStream out = new 1.5.0/docs/api/java/io/FileOutputStream.html">FileOutputStream(new 1.5.0/docs/api/java/io/File.html">File(outputPath));

        StreamsUtils.inputStream2OutputStream(src,out);

    }

    public static void zipFolder(1.5.0/docs/api/java/lang/String.html">String folder, 1.5.0/docs/api/java/lang/String.html">String outFilename) throws 1.5.0/docs/api/java/io/IOException.html">IOException

    {

        1.5.0/docs/api/java/util/zip/ZipOutputStream.html">ZipOutputStream out = new 1.5.0/docs/api/java/util/zip/ZipOutputStream.html">ZipOutputStream(new 1.5.0/docs/api/java/io/FileOutputStream.html">FileOutputStream(outFilename));

        zipFolder(folder,"",out);

        out.close();

    }

    private static void zipFolder(1.5.0/docs/api/java/lang/String.html">String folder, 1.5.0/docs/api/java/lang/String.html">String relativePath, 1.5.0/docs/api/java/util/zip/ZipOutputStream.html">ZipOutputStream out) throws 1.5.0/docs/api/java/io/IOException.html">IOException

    {

        1.5.0/docs/api/java/io/File.html">File zipFolder = new 1.5.0/docs/api/java/io/File.html">File(folder);

        // Compress the files

        1.5.0/docs/api/java/io/File.html">File[] files = zipFolder.listFiles();

        for(1.5.0/docs/api/java/io/File.html">File file : files)

        {

            if (file.isDirectory())

            {

                zipFolder(folder + "/" + file.getName(), relativePath + "/" + file.getName(),out);

            }

            else

            {

                1.5.0/docs/api/java/io/FileInputStream.html">FileInputStream in = new 1.5.0/docs/api/java/io/FileInputStream.html">FileInputStream(file);

                // Add ZIP entry to output stream.

                out.putNextEntry(new 1.5.0/docs/api/java/util/zip/ZipEntry.html">ZipEntry(relativePath + "/" +  file.getName()));

                // Transfer bytes from the file to the ZIP file

                int len;

                byte[] buf = new byte[1024];

                while ((len = in.read(buf)) > 0)

                {

                    out.write(buf, 0, len);

                }

                // Complete the entry

                out.closeEntry();

                in.close();

            }

        }

    }

    public static void uzip2Folder(1.5.0/docs/api/java/lang/String.html">String folder, 1.5.0/docs/api/java/util/zip/ZipInputStream.html">ZipInputStream input) throws 1.5.0/docs/api/java/io/IOException.html">IOException

    {

        1.5.0/docs/api/java/io/File.html">File zipFolder = new 1.5.0/docs/api/java/io/File.html">File(folder);

        if(!zipFolder.exists()) zipFolder.mkdirs();

        1.5.0/docs/api/java/io/FileInputStream.html">FileInputStream fis;

        //buffer for read and write data to file

        byte[] buffer = new byte[1024];

        try {

            1.5.0/docs/api/java/util/zip/ZipEntry.html">ZipEntry ze = input.getNextEntry();

            while(ze != null){

                1.5.0/docs/api/java/lang/String.html">String fileName = ze.getName();

                1.5.0/docs/api/java/io/File.html">File newFile = new 1.5.0/docs/api/java/io/File.html">File(folder + 1.5.0/docs/api/java/io/File.html">File.separator + fileName);

                1.5.0/docs/api/java/lang/System.html">System.out.println("Unzipping to "+newFile.getAbsolutePath());

                //create directories for sub directories in zip

                new 1.5.0/docs/api/java/io/File.html">File(newFile.getParent()).mkdirs();

                1.5.0/docs/api/java/io/FileOutputStream.html">FileOutputStream fos = new 1.5.0/docs/api/java/io/FileOutputStream.html">FileOutputStream(newFile);

                int len;

                while ((len = input.read(buffer)) > 0) {

                    fos.write(buffer, 0, len);

                }

                fos.close();

                //close this ZipEntry

                input.closeEntry();

                ze = input.getNextEntry();

            }

            //close last ZipEntry

            input.closeEntry();

            input.close();

        } catch (1.5.0/docs/api/java/io/IOException.html">IOException e) {

            e.printStackTrace();

        }

    }

    public static synchronized void deleteOldContent(1.5.0/docs/api/java/lang/String.html">String folder)

    {

        deleteOldContent(new 1.5.0/docs/api/java/io/File.html">File(folder));

    }

    public static synchronized void deleteOldContent(1.5.0/docs/api/java/io/File.html">File folder)

    {

        if(folder.isDirectory())

        {

            for(1.5.0/docs/api/java/io/File.html">File f : folder.listFiles())

            {

                deleteOld(f);

            }

        }

    }

    public static void delete(1.5.0/docs/api/java/lang/String.html">String deleteFile)

    {

        delete(new 1.5.0/docs/api/java/io/File.html">File(deleteFile));

    }

    public static void delete(1.5.0/docs/api/java/io/File.html">File toDelete)

    {

        if(toDelete.isFile())

            toDelete.delete();

        else

        {

            for(1.5.0/docs/api/java/io/File.html">File f : toDelete.listFiles())

            {

                delete(f);

            }

            toDelete.delete();

        }

    }

    public static final long hourMili = 1000 * 60 * 60 * 24;

    public static boolean deleteOld(1.5.0/docs/api/java/io/File.html">File toDelete)

    {

        boolean allEliminated = true;

        if(toDelete.isFile() && 1.5.0/docs/api/java/lang/System.html">System.currentTimeMillis() - toDelete.lastModified() > hourMili)

            toDelete.delete();

        else if(toDelete.isFile())

            allEliminated = false;

        else

        {

            for(1.5.0/docs/api/java/io/File.html">File f : toDelete.listFiles())

            {

                if(!deleteOld(f))

                    allEliminated = false;

            }

            if(allEliminated)

                toDelete.delete();

        }

        return allEliminated;

    }

    public static byte[] createChecksum(1.5.0/docs/api/java/io/File.html">File file) throws 1.5.0/docs/api/java/lang/Exception.html">Exception

    {

        1.5.0/docs/api/java/security/MessageDigest.html">MessageDigest digestMd5 = 1.5.0/docs/api/java/security/MessageDigest.html">MessageDigest.getInstance("MD5");

        1.5.0/docs/api/java/security/DigestInputStream.html">DigestInputStream fis =  new 1.5.0/docs/api/java/security/DigestInputStream.html">DigestInputStream(new 1.5.0/docs/api/java/io/FileInputStream.html">FileInputStream(file),digestMd5);

        byte[] buffer = new byte[1024];

        int numRead;

        do {

            numRead = fis.read(buffer);

        } while (numRead != -1);

        digestMd5 = fis.getMessageDigest();

        fis.close();

        return digestMd5.digest();

    }

    // see this How-to for a faster way to convert

    // a byte array to a HEX string

    public static 1.5.0/docs/api/java/lang/String.html">String getMD5Checksum(1.5.0/docs/api/java/io/File.html">File file) throws 1.5.0/docs/api/java/lang/Exception.html">Exception {

        byte[] b = createChecksum(file);

        1.5.0/docs/api/java/lang/String.html">String result = "";

        for (int i=0; i < b.length; i++) {

            result += 1.5.0/docs/api/java/lang/Integer.html">Integer.toString( ( b[i] & 0xff ) + 0x100, 16).substring( 1 );

        }

        return result;

    }

    /**

     * Return true if files are the same in terms of bytes

     * @param file1

     * @param file2

     * @return

     */

    public static boolean compareTwoFiles(1.5.0/docs/api/java/io/File.html">File file1, 1.5.0/docs/api/java/io/File.html">File file2)

    {

        if(file1.length() != file2.length()){

            return false;

        }

        try{

            5+0%2Fdocs%2Fapi+InputStream">InputStream in1 =new 1.5.0/docs/api/java/io/BufferedInputStream.html">BufferedInputStream(new 1.5.0/docs/api/java/io/FileInputStream.html">FileInputStream(file1));

            5+0%2Fdocs%2Fapi+InputStream">InputStream in2 =new 1.5.0/docs/api/java/io/BufferedInputStream.html">BufferedInputStream(new 1.5.0/docs/api/java/io/FileInputStream.html">FileInputStream(file2));

            int value1,value2;

            do{

                //since we're buffered read() isn't expensive

                value1 = in1.read();

                value2 = in2.read();

                if(value1 !=value2){

                    in1.close();

                    in2.close();

                    return false;

                }

            }while(value1 >=0);

            //since we already checked that the file sizes are equal

            //if we're here we reached the end of both files without a mismatch

            in1.close();

            in2.close();

            return true;

        } catch (1.5.0/docs/api/java/io/FileNotFoundException.html">FileNotFoundException e) {

            e.printStackTrace();

        } catch (1.5.0/docs/api/java/io/IOException.html">IOException e) {

            e.printStackTrace();

        }

        return false;

    }

    /**

     * Relative path without /

     * @param path

     * @return

     */

    public static 1.5.0/docs/api/java/io/File.html">File getFileFromRelativeContextClassLoaderPath(1.5.0/docs/api/java/lang/String.html">String path)

    {

        1.5.0/docs/api/java/io/File.html">File f;

        1.5.0/docs/api/java/lang/ClassLoader.html">ClassLoader classLoader = 1.5.0/docs/api/java/lang/Thread.html">Thread.currentThread().getContextClassLoader();

        1.5.0/docs/api/java/net/URL.html">URL fileUrl = classLoader.getResource(path);

        try {

            try {

                f = new 1.5.0/docs/api/java/io/File.html">File(fileUrl.toURI());

                1.5.0/docs/api/java/lang/System.html">System.out.println(f.toString());

                1.5.0/docs/api/java/lang/System.html">System.out.println(f.getAbsolutePath());

                return f;

            } catch (1.5.0/docs/api/java/net/URISyntaxException.html">URISyntaxException ex) {

                logger.error(ex,ex);

                return null;

            } catch (1.5.0/docs/api/java/lang/IllegalArgumentException.html">IllegalArgumentException ex) {

                try {

                    1.5.0/docs/api/java/lang/System.html">System.out.println("Decoding from fileUrl.getFile");

                    f = new 1.5.0/docs/api/java/io/File.html">File(1.5.0/docs/api/java/net/URLDecoder.html">URLDecoder.decode(fileUrl.getFile(), "UTF-8"));

                    1.5.0/docs/api/java/lang/System.html">System.out.println(f.getAbsolutePath());

                    return f;

                } catch (1.5.0/docs/api/java/lang/Exception.html">Exception ex2) {

                    logger.error(ex2,ex2);

                }

            }

        }catch (1.5.0/docs/api/java/lang/Throwable.html">Throwable e) {

            throw new 1.5.0/docs/api/java/lang/IllegalArgumentException.html">IllegalArgumentException("The properties file "

                    + fileUrl.toExternalForm() + " could not be loaded.", e);

        }

        return null;

    }

    public static void main(1.5.0/docs/api/java/lang/String.html">String[] args) throws 1.5.0/docs/api/java/lang/Exception.html">Exception {

        1.5.0/docs/api/java/lang/System.html">System.out.println(getMD5Checksum(new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.0_macosx-x86.app.tar.bz2")));

        1.5.0/docs/api/java/lang/System.html">System.out.println(getMD5Checksum(new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.0_macosx-x86.app.tar.bz2")));

        1.5.0/docs/api/java/lang/System.html">System.out.println(getMD5Checksum(new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.0_macosx-x86.app.tar.bz2")));

        1.5.0/docs/api/java/lang/System.html">System.out.println(compareTwoFiles(new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.0_macosx-x86.app.tar.bz2"), new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.0_macosx-x86.app.tar-copia.bz2")));

        1.5.0/docs/api/java/lang/System.html">System.out.println(compareTwoFiles(new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.0_macosx-x86.app.tar.bz2"), new 1.5.0/docs/api/java/io/File.html">File("/Volumes/Home/jorgemachado/Documents/FileZilla_3.24.1_macosx-x86.app.tar.bz2")));

    }

}