Example usage for java.io ByteArrayInputStream read

Introduction

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

Prototype

public synchronized int read(byte b[], int off, int len) 

Source Link

Document

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

Usage

From source file:Main.java

public static void main(String[] args) throws IOException {

    byte[] buf = { 65, 66, 67, 68, 69 };

    ByteArrayInputStream bais = new ByteArrayInputStream(buf);

    byte[] b = new byte[4];
    int num = bais.read(b, 2, 2);

    System.out.println("Bytes read: " + num);

    for (byte s : b) {
        char c = (char) s;
        System.out.println(s);//from   ww w.j  a v a2  s.c  o m
        if (s == 0) {
            System.out.println(": Null");
        } else {
            System.out.println(": " + c);
        }
    }

}

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From source file:Main.java

public static void main(String args[]) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//from   w ww. jav a 2 s. c  o m
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());
    ByteArrayInputStream inStream = new ByteArrayInputStream(outStream.toByteArray());
    int inBytes = inStream.available();
    System.out.println("inStream has " + inBytes + " available bytes");
    byte inBuf[] = new byte[inBytes];
    int bytesRead = inStream.read(inBuf, 0, inBytes);
    System.out.println(bytesRead + " bytes were read");
    System.out.println("They are: " + new String(inBuf));
}

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From source file:ByteArrayIOApp.java

public static void main(String args[]) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//from  w  ww  . j av  a 2 s  .  c o m
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());
    ByteArrayInputStream inStream;
    inStream = new ByteArrayInputStream(outStream.toByteArray());
    int inBytes = inStream.available();
    System.out.println("inStream has " + inBytes + " available bytes");
    byte inBuf[] = new byte[inBytes];
    int bytesRead = inStream.read(inBuf, 0, inBytes);
    System.out.println(bytesRead + " bytes were read");
    System.out.println("They are: " + new String(inBuf));
}

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From source file:Main.java

public static void main(String args[]) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    String s = "This is a test.";
    for (int i = 0; i < s.length(); ++i)
        outStream.write(s.charAt(i));//w w  w.j  a v a2s .co m
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());

    ByteArrayInputStream inStream;
    inStream = new ByteArrayInputStream(outStream.toByteArray());
    int inBytes = inStream.available();

    System.out.println("inStream has " + inBytes + " available bytes");
    byte inBuf[] = new byte[inBytes];
    int bytesRead = inStream.read(inBuf, 0, inBytes);

    System.out.println(bytesRead + " bytes were read");
    System.out.println("They are: " + new String(inBuf));
}

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From source file:Main.java

public static byte[] readData(ByteArrayInputStream bais) {
    int len = getLength(bais);
    byte[] data = new byte[len];
    bais.read(data, 0, len);
    return data;//from  w  w  w. j  av  a 2s . c  o  m
}

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From source file:Main.java

public static String toString(ByteArrayInputStream is) {
    int size = is.available();
    char[] theChars = new char[size];
    byte[] bytes = new byte[size];

    is.read(bytes, 0, size);
    for (int i = 0; i < size;)
        theChars[i] = (char) (bytes[i++] & 0xff);

    return new String(theChars);
}

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From source file:com.jadarstudios.rankcapes.bukkit.CapePackValidator.java

/**
 * Utility method to detect if the bytes given are a zip file.
 *
 * @param bytes the bytes of the file/*w w w .j a  va 2 s  . c  o m*/
 *
 * @return if it is a zip file
 */
public static boolean isZipFile(byte[] bytes) {
    ByteArrayInputStream input = new ByteArrayInputStream(bytes);

    ByteBuffer buffer = ByteBuffer.allocate(4);
    input.read(buffer.array(), 0, buffer.capacity());

    short packIdentifier = buffer.getShort();

    return packIdentifier == ZIP_IDENTIFIER;
}

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From source file:Main.java

public static long write(String fileName, String data, int position) throws FileNotFoundException, IOException {
    boolean append = false;
    if (position > 0) {
        truncateFile(fileName, position);
        append = true;/*from  ww  w.j  a  v  a  2  s  .c  o  m*/
    }

    byte[] rawData = data.getBytes();
    ByteArrayInputStream in = new ByteArrayInputStream(rawData);
    FileOutputStream out = new FileOutputStream(fileName, append);
    byte buff[] = new byte[rawData.length];
    in.read(buff, 0, buff.length);
    out.write(buff, 0, rawData.length);
    out.flush();
    out.close();

    return data.length();
}

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From source file:cn.sharesdk.analysis.net.NetworkHelper.java

public static String Base64Gzip(String str) {
    ByteArrayInputStream bais = new ByteArrayInputStream(str.getBytes());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    String result = null;//w  w w.j av a 2s. co m
    // gzip
    GZIPOutputStream gos;
    try {
        gos = new GZIPOutputStream(baos);
        int count;
        byte data[] = new byte[1024];
        while ((count = bais.read(data, 0, 1024)) != -1) {
            gos.write(data, 0, count);
        }
        gos.finish();
        gos.close();

        byte[] output = baos.toByteArray();
        baos.flush();
        baos.close();
        bais.close();

        result = Base64.encodeToString(output, Base64.NO_WRAP);

    } catch (IOException e) {
        e.printStackTrace();
        Ln.e("NetworkHelper", "Base64Gzip == >>", e);
    }

    //Ln.i("after base64gizp", result);
    return result;
}

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From source file:cn.sharesdk.net.NetworkHelper.java

public static String Base64Gzip(String str) {
    ByteArrayInputStream bais = new ByteArrayInputStream(str.getBytes());
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    String result = null;//www .j  a  v  a  2  s . c  o m
    // gzip
    GZIPOutputStream gos;
    try {
        gos = new GZIPOutputStream(baos);
        int count;
        byte data[] = new byte[1024];
        while ((count = bais.read(data, 0, 1024)) != -1) {
            gos.write(data, 0, count);
        }
        gos.finish();
        gos.close();

        byte[] output = baos.toByteArray();
        baos.flush();
        baos.close();
        bais.close();

        result = Base64.encodeToString(output, Base64.NO_WRAP);
    } catch (IOException e) {
        e.printStackTrace();
        Ln.i("NetworkHelper", "Base64Gzip == >>", e);
    }
    return result;
}

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