Example usage for java.io FileInputStream read

Introduction

In this page you can find the example usage for java.io FileInputStream read.

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:com.owncloud.android.utils.EncryptionUtils.java

public static String getMD5Sum(File file) {
    try {//from  w ww . jav a  2  s .  co m
        FileInputStream fileInputStream = new FileInputStream(file);
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        byte[] bytes = new byte[2048];
        int readBytes;

        while ((readBytes = fileInputStream.read(bytes)) != -1) {
            md5.update(bytes, 0, readBytes);
        }

        return new String(Hex.encodeHex(md5.digest()));

    } catch (Exception e) {
        Log_OC.e(TAG, e.getMessage());
    }

    return "";
}

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From source file:com.muzima.controller.FormController.java

private static String getStringMedia(String mediaUri) {
    String mediaString = null;//ww w.  j a v  a 2 s  .co  m
    if (!StringUtils.isEmpty(mediaUri)) {
        //fetch the media and convert it to @Base64 encoded string.
        File f = new File(mediaUri);
        if (f.exists()) {

            // here the media file is encrypted so we decrypt it
            EnDeCrypt.decrypt(f, "this-is-supposed-to-be-a-secure-key");

            try {
                FileInputStream fis = new FileInputStream(f);
                byte[] fileBytes = new byte[(int) f.length()];
                fis.read(fileBytes);

                //convert the decrypted media to Base64 string
                mediaString = MediaUtils.toBase64(fileBytes);
            } catch (Exception e) {
                Log.e(TAG, e.getMessage());
            }

            // and encrypt again
            EnDeCrypt.encrypt(f, "this-is-supposed-to-be-a-secure-key");
        }
    }
    return mediaString != null ? mediaString : mediaUri;
}

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From source file:com.wattzap.model.social.SelfLoopsAPI.java

public static int uploadActivity(String email, String passWord, String fileName, String note)
        throws IOException {
    JSONObject jsonObj = null;/*from   w  w  w.  j a v a2s  .  c o m*/

    FileInputStream in = null;
    GZIPOutputStream out = null;
    CloseableHttpClient httpClient = HttpClients.createDefault();
    try {
        HttpPost httpPost = new HttpPost(url);
        httpPost.setHeader("enctype", "multipart/mixed");

        in = new FileInputStream(fileName);
        // Create stream to compress data and write it to the to file.
        ByteArrayOutputStream obj = new ByteArrayOutputStream();
        out = new GZIPOutputStream(obj);

        // Copy bytes from one stream to the other
        byte[] buffer = new byte[4096];
        int bytes_read;
        while ((bytes_read = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytes_read);
        }
        out.close();
        in.close();

        ByteArrayBody bin = new ByteArrayBody(obj.toByteArray(), ContentType.create("application/x-gzip"),
                fileName);
        HttpEntity reqEntity = MultipartEntityBuilder.create()
                .addPart("email", new StringBody(email, ContentType.TEXT_PLAIN))
                .addPart("pw", new StringBody(passWord, ContentType.TEXT_PLAIN)).addPart("tcxfile", bin)
                .addPart("note", new StringBody(note, ContentType.TEXT_PLAIN)).build();

        httpPost.setEntity(reqEntity);

        CloseableHttpResponse response = null;
        try {
            response = httpClient.execute(httpPost);
            int code = response.getStatusLine().getStatusCode();
            switch (code) {
            case 200:

                HttpEntity respEntity = response.getEntity();

                if (respEntity != null) {
                    // EntityUtils to get the response content
                    String content = EntityUtils.toString(respEntity);
                    //System.out.println(content);
                    JSONParser jsonParser = new JSONParser();
                    jsonObj = (JSONObject) jsonParser.parse(content);
                }

                break;
            case 403:
                throw new RuntimeException(
                        "Authentification failure " + email + " " + response.getStatusLine());
            default:
                throw new RuntimeException("Error " + code + " " + response.getStatusLine());
            }
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            if (response != null) {
                response.close();
            }
        }

        int activityId = ((Long) jsonObj.get("activity_id")).intValue();

        // parse error code
        int error = ((Long) jsonObj.get("error_code")).intValue();
        if (activityId == -1) {
            String message = (String) jsonObj.get("message");
            switch (error) {
            case 102:
                throw new RuntimeException("Empty TCX file " + fileName);
            case 103:
                throw new RuntimeException("Invalide TCX Format " + fileName);
            case 104:
                throw new RuntimeException("TCX Already Present " + fileName);
            case 105:
                throw new RuntimeException("Invalid XML " + fileName);
            case 106:
                throw new RuntimeException("invalid compression algorithm");
            case 107:
                throw new RuntimeException("Invalid file mime types");
            default:
                throw new RuntimeException(message + " " + error);
            }
        }

        return activityId;
    } finally {
        if (in != null) {
            in.close();
        }
        if (out != null) {
            out.close();
        }
        httpClient.close();
    }
}

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From source file:uploadProcess.java

public static boolean decrypt(File inputFolder, String fileName, String patientID) {
    try {//from   ww  w . j av a 2s .c  om
        //Download File from Cloud..
        DropboxUpload download = new DropboxUpload();
        download.downloadFile(fileName, StoragePath.getDropboxDir() + patientID, inputFolder);

        String ukey = GetKey.getPatientKey(patientID);
        File inputFile = new File(inputFolder.getAbsolutePath() + File.separator + fileName);
        FileInputStream fis = new FileInputStream(inputFile);
        File outputFolder = new File(inputFolder.getAbsolutePath() + File.separator + "temp");
        if (!outputFolder.exists()) {
            outputFolder.mkdir();
        }
        FileOutputStream fos = new FileOutputStream(outputFolder.getAbsolutePath() + File.separator + fileName);
        byte[] k = ukey.getBytes();
        SecretKeySpec key = new SecretKeySpec(k, "AES");
        Cipher enc = Cipher.getInstance("AES");
        enc.init(Cipher.DECRYPT_MODE, key);
        CipherOutputStream cos = new CipherOutputStream(fos, enc);
        byte[] buf = new byte[1024];
        int read;
        while ((read = fis.read(buf)) != -1) {
            cos.write(buf, 0, read);
        }
        fis.close();
        fos.flush();
        cos.close();
        return true;
    } catch (Exception e) {
        System.out.println("Error: " + e);
    }
    return false;
}

---

From source file:it.geosolutions.tools.compress.file.Compressor.java

public static File deflate(final File outputDir, final File zipFile, final File[] files, boolean overwrite) {

    if (zipFile.exists() && overwrite) {
        if (LOGGER.isInfoEnabled())
            LOGGER.info("The output file already exists: " + zipFile + " overvriting");
        return zipFile;
    }/*from   ww  w . j  a  v  a  2s. co m*/

    // Create a buffer for reading the files
    byte[] buf = new byte[Conf.getBufferSize()];

    ZipOutputStream out = null;
    BufferedOutputStream bos = null;
    FileOutputStream fos = null;
    try {
        fos = new FileOutputStream(zipFile);
        bos = new BufferedOutputStream(fos);
        out = new ZipOutputStream(bos);

        // Compress the files
        for (File file : files) {
            FileInputStream in = null;
            try {
                in = new FileInputStream(file);
                if (file.isDirectory()) {
                    continue;
                } else {
                    // Add ZIP entry to output stream.
                    out.putNextEntry(new ZipEntry(file.getName()));
                    // Transfer bytes from the file to the ZIP file
                    int len;
                    while ((len = in.read(buf)) > 0) {
                        out.write(buf, 0, len);
                    }
                    out.flush();
                }

            } finally {
                try {
                    // Complete the entry
                    out.closeEntry();
                } catch (Exception e) {
                }
                IOUtils.closeQuietly(in);
            }

        }

    } catch (IOException e) {
        LOGGER.error(e.getLocalizedMessage(), e);
        return null;
    } finally {

        // Complete the ZIP file
        IOUtils.closeQuietly(out);
        IOUtils.closeQuietly(bos);
        IOUtils.closeQuietly(fos);
    }

    return zipFile;
}

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From source file:SystemUtils.java

public static void CopyFile(String src, String dest) throws IOException {
    FileInputStream fis = null;
    FileOutputStream fos = null;/*  w w  w.ja  v  a  2s.co  m*/
    byte[] buf;
    int len;

    try {
        fis = new FileInputStream(src);
        fos = new FileOutputStream(dest);

        buf = new byte[2048];

        len = fis.read(buf);
        while (len != -1) {
            fos.write(buf, 0, len);
            len = fis.read(buf);
        }
    } //End try block
    finally {
        if (fis != null) {
            try {
                fis.close();
            } catch (Exception e) {
            }
        }

        if (fos != null) {
            try {
                fos.close();
            } catch (Exception e) {
            }
        }
    }
}

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From source file:com.collabnet.ccf.pi.qc.v90.QCGAHelper.java

/**
 * Copy a file from origin to target//from   w  ww .j av a 2 s.  co m
 * 
 * @param origin
 *            origin file
 * @param target
 *            target file
 */
public static void copyFile(File origin, File target) {
    try {
        FileInputStream fis = new FileInputStream(origin);
        FileOutputStream fos = new FileOutputStream(target);
        int readCount = 0;
        byte[] tmpData = new byte[1024 * 4];
        while ((readCount = fis.read(tmpData)) != -1) {
            fos.write(tmpData, 0, readCount);
        }
        fis.close();
        fos.close();
    } catch (FileNotFoundException e) {
        String message = "Could not read attachment content." + " File not found " + origin.getAbsolutePath();
        log.error(message, e);
        throw new CCFRuntimeException(message, e);
    } catch (IOException e) {
        String message = "Could not read attachment content." + " IOException while reading "
                + origin.getAbsolutePath();
        log.error(message, e);
        throw new CCFRuntimeException(message, e);
    }
}

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From source file:at.tugraz.sss.serv.SSFileU.java

public static String readFileText(final File file, final Charset charset) throws Exception {

    FileInputStream in = null;

    try {//from w  ww .j a  v  a  2s  .com

        final byte[] bytes = new byte[1];
        String fileContent = SSStrU.empty;

        in = openFileForRead(file.getAbsolutePath());

        while (in.read(bytes) != -1) {
            fileContent += new String(bytes, charset);
        }

        in.close();

        return fileContent;
    } catch (Exception error) {
        throw error;
    } finally {

        if (in != null) {
            in.close();
        }
    }
}

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From source file:de.ingrid.interfaces.csw.tools.FileUtils.java

/**
 * This function will copy files or directories from one location to
 * another. note that the source and the destination must be mutually
 * exclusive. This function can not be used to copy a directory to a sub
 * directory of itself. The function will also have problems if the
 * destination files already exist.//from w  w  w.  ja v  a2  s  .  c o  m
 * 
 * @param src
 *            -- A File object that represents the source for the copy
 * @param dest
 *            -- A File object that represnts the destination for the copy.
 * @throws IOException
 *             if unable to copy.
 * 
 *             Source: http://www.dreamincode.net/code/snippet1443.htm
 */
public static void copyRecursive(File src, File dest) throws IOException {
    // Check to ensure that the source is valid...
    if (!src.exists()) {
        throw new IOException("copyFiles: Can not find source: " + src.getAbsolutePath() + ".");
    } else if (!src.canRead()) { // check to ensure we have rights to the
        // source...
        throw new IOException("copyFiles: No right to source: " + src.getAbsolutePath() + ".");
    }
    // is this a directory copy?
    if (src.isDirectory()) {
        if (!dest.exists()) { // does the destination already exist?
            // if not we need to make it exist if possible (note this is
            // mkdirs not mkdir)
            if (!dest.mkdirs()) {
                throw new IOException("copyFiles: Could not create direcotry: " + dest.getAbsolutePath() + ".");
            }
        }
        // get a listing of files...
        String list[] = src.list();
        // copy all the files in the list.
        for (String element : list) {
            File dest1 = new File(dest, element);
            File src1 = new File(src, element);
            copyRecursive(src1, dest1);
        }
    } else {
        // This was not a directory, so lets just copy the file
        FileInputStream fin = null;
        FileOutputStream fout = null;
        byte[] buffer = new byte[4096]; // Buffer 4K at a time (you can
        // change this).
        int bytesRead;
        try {
            // open the files for input and output
            fin = new FileInputStream(src);
            fout = new FileOutputStream(dest);
            // while bytesRead indicates a successful read, lets write...
            while ((bytesRead = fin.read(buffer)) >= 0) {
                fout.write(buffer, 0, bytesRead);
            }
            fin.close();
            fout.close();
            fin = null;
            fout = null;
        } catch (IOException e) { // Error copying file...
            IOException wrapper = new IOException("copyFiles: Unable to copy file: " + src.getAbsolutePath()
                    + "to" + dest.getAbsolutePath() + ".");
            wrapper.initCause(e);
            wrapper.setStackTrace(e.getStackTrace());
            throw wrapper;
        } finally { // Ensure that the files are closed (if they were open).
            if (fin != null) {
                fin.close();
            }
            if (fout != null) {
                fin.close();
            }
        }
    }
}

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From source file:net.sf.jasperreports.engine.util.JRLoader.java

/**
 *
 *//*  w ww.  java2s  . co  m*/
public static byte[] loadBytes(File file) throws JRException {
    ByteArrayOutputStream baos = null;
    FileInputStream fis = null;

    try {
        fis = new FileInputStream(file);
        baos = new ByteArrayOutputStream();

        byte[] bytes = new byte[10000];
        int ln = 0;
        while ((ln = fis.read(bytes)) > 0) {
            baos.write(bytes, 0, ln);
        }

        baos.flush();
    } catch (IOException e) {
        throw new JRException(EXCEPTION_MESSAGE_KEY_BYTE_DATA_LOADING_ERROR, new Object[] { file }, e);
    } finally {
        if (baos != null) {
            try {
                baos.close();
            } catch (IOException e) {
            }
        }

        if (fis != null) {
            try {
                fis.close();
            } catch (IOException e) {
            }
        }
    }

    return baos.toByteArray();
}

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