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 void streamToStream(InputStream is, OutputStream os) throws IOException {
    final byte[] buffer = new byte[256];
    try {/* ww  w.j  av  a2 s .c  o  m*/
        int n;
        while ((n = is.read(buffer)) != -1) {
            os.write(buffer, 0, n);
        }
    } finally {
        os.flush();
        os.close();
        is.close();
    }
}

From source file:Main.java

public static long getMaxCpuFreq() {
    long longRet = 0;
    String result = "0";
    ProcessBuilder cmd;/*  w ww  .  j  a  va  2s . co m*/
    try {
        String[] args = { "/system/bin/cat", "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq" };
        cmd = new ProcessBuilder(args);
        Process process = cmd.start();
        InputStream in = process.getInputStream();
        byte[] re = new byte[24];
        result = "";
        while (in.read(re) != -1) {
            result = result + new String(re);
        }
        in.close();
    } catch (IOException ex) {
        ex.printStackTrace();
        result = "0";
    }

    if (result.length() != 0) {
        try {
            longRet = Long.valueOf(result.trim());
        } catch (Exception e) {
            android.util.Log.e(TAG, "");
        }
    }
    return longRet;
}

From source file:Main.java

public static void streamTransfer(final InputStream in, final OutputStream out) {
    final byte[] buffer = new byte[8192];
    int read;/*  ww  w.jav a  2 s  . co  m*/
    try {
        while ((read = in.read(buffer)) != -1) {
            out.write(buffer, 0, read);
        }
    } catch (final IOException exception) {
        exception.printStackTrace();
    }
}

From source file:Main.java

/**
 * Returns the lowercase string representation of the file's MD5 sum.
 *///  w ww.j a va  2s.co m
public static String getMD5Sum(String file) throws IOException {
    try {
        MessageDigest digest = MessageDigest.getInstance("MD5");
        InputStream is = new FileInputStream(file);
        byte[] buffer = new byte[8192];
        int read = 0;
        while ((read = is.read(buffer)) > 0) {
            digest.update(buffer, 0, read);
        }
        is.close();
        byte[] md5sum = digest.digest();
        BigInteger bigInt = new BigInteger(1, md5sum);
        return bigInt.toString(16);
    } catch (NoSuchAlgorithmException e) {
        return "";
    }
}

From source file:Main.java

/**
 * <p>Copies the data from the {@link InputStream} into a {@link OutputStream}</p>
 *
 * @param input  data source stream.//  w ww.j  av a2s  .  co m
 * @param output target stream.
 *
 * @throws IOException if error happened.
 */
public static void copyStream(InputStream input, OutputStream output) throws IOException {
    byte[] buffer = new byte[BUFFER_SIZE];
    int bytesRead;
    while ((bytesRead = input.read(buffer)) != -1) {
        output.write(buffer, 0, bytesRead);
    }
}

From source file:Main.java

public static String getStringFromStream(InputStream is) {
    byte[] bytes = new byte[1024];
    int len = 0;//from www  . j  ava2s .  co  m
    String res = "";
    try {
        while ((len = is.read(bytes)) != -1) {
            res = res + new String(bytes, 0, len, "gbk");
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (is != null) {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return res;
}

From source file:Main.java

/**
 * Extract a resource into a real file//w  w w. j  a  v a2 s  .  c om
 * 
 * @param in typically given as getResources().openRawResource(R.raw.something)
 * @param name of the resulting file
 * @param directory target directory
 * @return the resulting file
 * @throws IOException
 */
public static File extractResource(InputStream in, String filename, File directory) throws IOException {
    int n = in.available();
    byte[] buffer = new byte[n];
    in.read(buffer);
    in.close();
    File file = new File(directory, filename);
    FileOutputStream out = new FileOutputStream(file);
    out.write(buffer);
    out.close();
    return file;
}

From source file:Main.java

public static void streamCopy(final InputStream bodyIs, final OutputStream out) throws IOException {
    byte[] buffer = new byte[2048];
    int read;//from   ww w  .j ava2  s  .c o m
    while ((read = bodyIs.read(buffer)) > 0) {
        out.write(buffer, 0, read);
    }
    bodyIs.close();
    out.close();
}

From source file:Main.java

public static String LoadData(Context context, String inFile) {
    String tContents = "";
    try {/*from w w  w  . j ava  2 s  . c o m*/
        InputStream stream = context.getAssets().open(inFile);
        int size = stream.available();
        byte[] buffer = new byte[size];
        stream.read(buffer);
        stream.close();
        tContents = new String(buffer);
    } catch (IOException e) {
        // Handle exceptions

    }

    return tContents;
}

From source file:Main.java

public static String inputStream2String(InputStream in) throws IOException {
    byte[] buf = new byte[1024];
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    for (int i; (i = in.read(buf)) != -1;) {
        baos.write(buf, 0, i);/* w ww. j  av a2 s.  c  o m*/
    }

    return baos.toString("UTF-8");
}