Example usage for java.io InputStream read

Introduction

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

Prototype

public int read(byte b[]) throws IOException

Source Link

Document

Reads some number of bytes from the input stream and stores them into the buffer array b.

Usage

From source file:net.sf.keystore_explorer.utilities.io.CopyUtil.java

/**
 * Copy data from one stream to another and do not close I/O.
 *
 * @param in/* ww w.ja v  a 2  s  . c  om*/
 *            Input stream
 * @param out
 *            Output stream
 * @throws IOException
 *             If an I/O problem occurred
 */
public static void copy(InputStream in, OutputStream out) throws IOException {
    byte[] buffer = new byte[2048];
    int i;
    while ((i = in.read(buffer)) > 0) {
        out.write(buffer, 0, i);
    }
}

From source file:Main.java

/**
 * Copy the content of the input stream into the output stream, using a
 * temporary byte array buffer whose size is defined by
 * {@link #IO_BUFFER_SIZE}./*  w w w .j  a  v a 2  s .com*/
 *
 * @param in The input stream to copy from.
 * @param out The output stream to copy to.
 * @throws IOException If any error occurs during the copy.
 */
private static void copy(InputStream in, OutputStream out) throws IOException {
    byte[] b = new byte[IO_BUFFER_SIZE];
    int read;
    while ((read = in.read(b)) != -1) {
        out.write(b, 0, read);
    }
}

From source file:Main.java

public static void setupDatabase(Context context, String db_name) {
    ContextWrapper cw = new ContextWrapper(context);
    String db_path = cw.getDatabasePath(db_name).getPath();

    try {/*from   www. j a  v a  2s. c  om*/
        // Setup
        byte[] buffer = new byte[1024];
        int length;
        InputStream myInput = context.getAssets().open(db_name);
        OutputStream myOutput = new FileOutputStream(db_path);

        // Write all the things.
        while ((length = myInput.read(buffer)) > 0)
            myOutput.write(buffer, 0, length);

        // Cleanup
        myOutput.close();
        myOutput.flush();
        myInput.close();
    } catch (IOException e) {
        // You done goofed.
        e.printStackTrace();
    }
}

From source file:Main.java

public static void copyFile(String oldPath, String newPath) {
    try {//from  www  . j a va  2s. c o  m
        int byteRead;
        File oldFile = new File(oldPath);
        if (oldFile.exists()) {
            InputStream inStream = new FileInputStream(oldPath);
            FileOutputStream fs = new FileOutputStream(newPath);
            byte[] buffer = new byte[1444];
            while ((byteRead = inStream.read(buffer)) != -1) {
                fs.write(buffer, 0, byteRead);
            }
            inStream.close();
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:DBMS.UpdateFileUpload.java

public static boolean processFile(String path, FileItemStream item, int id) {
    try {//from   w w  w  .j  a va2s  .co m
        String check = item.getName();
        if (check.endsWith(".jpg") || check.endsWith(".JPG")) {
            String imstring = "images/" + Integer.toString(id);
            File f = new File(path + File.separator + imstring);
            if (!f.exists())
                f.mkdir();
            File savedFile = new File(f.getAbsolutePath() + File.separator + item.getName());
            FileOutputStream fos = new FileOutputStream(savedFile);
            InputStream is = item.openStream();
            int x = 0;
            byte[] b = new byte[1024];
            while ((x = is.read(b)) != -1) {
                fos.write(b, 0, x);
            }
            fos.flush();
            fos.close();
            String dbimage = imstring + "/a.jpg";
            //dc.enterImage(dbimage);
            //im =dbimage;
            //System.out.println("Resizing!");
            //Resize rz = new Resize();
            //rz.resize(dbimage);
            BufferedImage originalImage = ImageIO.read(savedFile);
            int type = originalImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : originalImage.getType();
            BufferedImage resizeImageJpg = resizeImage(originalImage, type);
            ImageIO.write(resizeImageJpg, "jpg", savedFile);
            File rFile = new File(f.getAbsolutePath() + "/a.jpg");
            savedFile.renameTo(rFile);
            ProfileEditDB dc = new ProfileEditDB();
            dc.enterImage(id, dbimage);
            System.out.println("Link Entered to Database!");
            return true;
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
    return false;
}

From source file:Main.java

private static void streamToFile(InputStream is, File targetFile) throws IOException {
    FileOutputStream fos = new FileOutputStream(targetFile);
    byte[] bytes = new byte[1024];
    while (true) {
        int n = is.read(bytes);
        if (n < 0) {
            break;
        }/*  w  w  w.  jav a  2  s  .  c o m*/
        fos.write(bytes, 0, n);
    }
    is.close();
    fos.close();
}

From source file:Main.java

private static void copyResourceFile(Context context, int rid, String targetFile) throws IOException {
    InputStream fin = context.getResources().openRawResource(rid);
    FileOutputStream fos = new FileOutputStream(targetFile);

    int length;//from  w w  w  .  ja v  a  2  s  . c o m
    byte[] buffer = new byte[1024 * 32];
    while ((length = fin.read(buffer)) != -1) {
        fos.write(buffer, 0, length);
    }
    fin.close();
    fos.close();
}

From source file:Main.java

public static byte[] streamToByteArray(InputStream stream) throws IOException {
    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    byte[] buffer = new byte[1024];
    try {//w  w w .  j  a v  a  2 s. c  o m
        int count;
        while ((count = stream.read(buffer)) != -1) {
            bytes.write(buffer, 0, count);
        }
        return bytes.toByteArray();
    } finally {
        stream.close();
        bytes.close();
    }
}

From source file:Main.java

private static String readTextFile(InputStream inputStream) {
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    byte buf[] = new byte[1024];
    int len;/*  w w  w  .  j  av a 2s .  c  om*/
    try {
        while ((len = inputStream.read(buf)) != -1) {
            outputStream.write(buf, 0, len);
        }
        outputStream.close();
        inputStream.close();
    } catch (IOException e) {
        Log.i("IO error", e.getMessage());
        return "Sorry, help file not found.";
    }
    return outputStream.toString();
}

From source file:Main.java

public static void copyfile(File src, File dec) {
    try {// ww  w.  j  a  v  a 2 s. c  o m
        if (src == null || dec == null) {
            return;
        }

        InputStream in = new FileInputStream(src);
        OutputStream out = new FileOutputStream(dec);

        byte[] buf = new byte[1024];
        int len;
        while ((len = in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }
        in.close();
        out.close();
    } catch (FileNotFoundException ex) {
        ex.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
}