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:Main.java

public static byte[] getBytesFromInput(InputStream in) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    byte[] buffer = new byte[in.available()];
    in.read(buffer);
    out.write(buffer);//  ww w.j av a2s.  co  m
    return out.toByteArray();
}

From source file:Main.java

public static String getSha1(FileDescriptor fd) {
    MessageDigest md;//  w  w w. j  av a2s . com
    try {
        md = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
    byte[] b = new byte[4096];
    FileInputStream fis = new FileInputStream(fd);
    InputStream is = new BufferedInputStream(fis, 4096);
    try {
        for (int n; (n = is.read(b)) != -1;) {
            md.update(b, 0, n);
        }
    } catch (IOException e) {
        Log.w(TAG, "IOException while computing SHA-1");
        return null;
    }
    byte[] sha1hash = new byte[40];
    sha1hash = md.digest();
    return getHex(sha1hash);
}

From source file:Main.java

private static void copyFile(InputStream in, OutputStream out) throws IOException {
    byte[] buffer = new byte[1024 * 16];
    int read;/*  w  w  w  .  ja  va  2 s.c o m*/
    while ((read = in.read(buffer)) != -1) {
        out.write(buffer, 0, read);
    }
}

From source file:Main.java

public static void copy(InputStream in, OutputStream out) throws IOException {
    byte[] buffer = new byte[1024 * 32];
    int read;//from   w w w. jav a  2  s.  c  om
    while ((read = in.read(buffer)) != -1) {
        out.write(buffer, 0, read);
    }
}

From source file:StreamUtils.java

/**
 * Reads the content of an input stream and writes it into an output stream.
 * The copy is made in chunks of 512 bytes.
 * @param is the input//from  w  w w .j a va2s. c o m
 * @param os the output
 * @throws IOException thrown by the {@code read} and {@code write} methods of the streams
 */
public static void readWrite(InputStream is, OutputStream os) throws IOException {
    byte[] buf = new byte[512];
    int nRead;
    while ((nRead = is.read(buf)) != -1) {
        os.write(buf, 0, nRead);
    }
}

From source file:Main.java

public static String loadJSONFromAsset(Context context, String jsonFile) {
    String json = null;/*w  ww  . j a  va2  s  .  c o  m*/
    try {
        InputStream is = context.getAssets().open(jsonFile);
        int size = is.available();
        byte[] buffer = new byte[size];
        is.read(buffer);
        is.close();
        json = new String(buffer, "UTF-8");
    } catch (IOException ex) {
        ex.printStackTrace();
        return null;
    }
    return json;
}

From source file:Main.java

/**
 * @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.
 *//*from w  ww . j ava2 s .c  om*/
private static void copyStream(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 String runCommand(String[] command, String workdirectory) {
    String result = "";
    //AbLogUtil.d(AbAppUtil.class, "#"+command);
    try {//from  www .j av a  2s  .  c  om
        ProcessBuilder builder = new ProcessBuilder(command);
        // set working directory
        if (workdirectory != null) {
            builder.directory(new File(workdirectory));
        }
        builder.redirectErrorStream(true);
        Process process = builder.start();
        InputStream in = process.getInputStream();
        byte[] buffer = new byte[1024];
        while (in.read(buffer) != -1) {
            String str = new String(buffer);
            result = result + str;
        }
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return result;
}

From source file:Main.java

public static void appendStreamToStream(InputStream is, OutputStream os) throws IOException {
    final byte[] buffer = new byte[256];
    try {/*from   ww w  .j a  v a  2  s.c  o m*/
        int n;
        while ((n = is.read(buffer)) != -1) {
            os.write(buffer, 0, n);
        }
    } finally {
        is.close();
    }
}

From source file:Main.java

public static long copyLarge(InputStream input, OutputStream output, byte[] buffer) throws IOException {
    long count = 0;
    int n = 0;/*  www .  j a v  a  2  s.  co  m*/
    while (EOF != (n = input.read(buffer))) {
        output.write(buffer, 0, n);
        count += n;
    }
    return count;
}