Example usage for java.io DataInputStream readInt

Introduction

In this page you can find the example usage for java.io DataInputStream readInt.

Prototype

public final int readInt() throws IOException

Source Link

Document

See the general contract of the readInt method of DataInput.

Usage

From source file:com.bigdata.dastor.db.RangeSliceReply.java

public static RangeSliceReply read(byte[] body) throws IOException {
    ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
    DataInputStream dis = new DataInputStream(bufIn);
    int rowCount = dis.readInt();
    List<Row> rows = new ArrayList<Row>(rowCount);
    for (int i = 0; i < rowCount; i++) {
        rows.add(Row.serializer().deserialize(dis));
    }/*from ww  w .j a  va2 s .com*/
    return new RangeSliceReply(rows);
}

From source file:org.apache.cassandra.db.RangeSliceReply.java

public static RangeSliceReply read(byte[] body, int version) throws IOException {
    ByteArrayInputStream bufIn = new ByteArrayInputStream(body);
    DataInputStream dis = new DataInputStream(bufIn);
    int rowCount = dis.readInt();
    List<Row> rows = new ArrayList<Row>(rowCount);
    for (int i = 0; i < rowCount; i++) {
        rows.add(Row.serializer().deserialize(dis, version));
    }/*from  www.j  a  va 2  s.  c  o m*/
    return new RangeSliceReply(rows);
}

From source file:Main.java

/**
 * Determine whether a file is a ZIP File.
 *//*from w w  w.ja va2 s.  c  o m*/
public static boolean isZipFile(File file) throws IOException {
    if (file.isDirectory()) {
        return false;
    }
    if (!file.canRead()) {
        throw new IOException("Cannot read file " + file.getAbsolutePath());
    }
    if (file.length() < 4) {
        return false;
    }
    DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(file)));
    int test = in.readInt();
    in.close();
    return test == 0x504b0304;
}

From source file:Main.java

public static int byteArrayToInt(byte[] input) {
    try {/*www  .  ja v a 2s.c  o  m*/
        ByteArrayInputStream bis = new ByteArrayInputStream(input);
        DataInputStream dis = new DataInputStream(bis);
        int numb = dis.readInt();
        dis.close();
        return numb;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

private static boolean internalIsJPEG(DataInputStream in) throws IOException {
    boolean result = false;
    try {/*from w  w  w  .  j  a  v a 2 s .  co m*/
        int headerBytes = in.readInt();
        result = (headerBytes == 0xffd8ffe0);
    } finally {
        in.close();
    }
    return result;
}

From source file:org.apache.accumulo.core.crypto.CryptoUtils.java

/**
 * Read the decryption parameters from the DataInputStream
 *///from   ww  w  .j  a  va  2  s  .c om
public static byte[] readParams(DataInputStream in) throws IOException {
    Objects.requireNonNull(in);
    int len = in.readInt();
    byte[] decryptionParams = new byte[len];
    IOUtils.readFully(in, decryptionParams);
    return decryptionParams;
}

From source file:com.opensoc.json.serialization.JSONDecoderHelper.java

public static String getString(DataInputStream data) throws IOException {

    int strSize = data.readInt();

    byte[] bytes = new byte[strSize];
    data.read(bytes);/*from  w  w  w.  ja va  2  s . co  m*/
    return new String(bytes);
}

From source file:rlVizLib.messaging.BinaryPayload.java

public static String readRawString(DataInputStream DIS) {
    try {// w  w w.  j  av  a  2  s  .  co  m
        int numBytes = DIS.readInt();
        if (numBytes == 0) {
            return "";
        }
        byte[] theBytes = new byte[numBytes];
        DIS.readFully(theBytes);
        return new String(theBytes);
    } catch (IOException ex) {
        Logger.getLogger(BinaryPayload.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

From source file:ReadBinaryFile.java

private static Product readMovie(DataInputStream in) {
    String title = "";
    int year = 0;
    double price = 0.0;

    try {//from  w w w. j  av  a2s .  c  o m
        title = in.readUTF();
        year = in.readInt();
        price = in.readDouble();
    } catch (EOFException e) {
        return null;
    } catch (IOException e) {
        System.out.println("I/O Error");
        System.exit(0);
    }
    return new Product(title, year, price);
}

From source file:TestPipes.java

public static void readData(InputStream is) {
    DataInputStream in = new DataInputStream(new BufferedInputStream(is));
    boolean eof = false;
    try {/*from www . j  a v  a  2  s .  c om*/
        while (!eof) {
            int iValue = in.readInt();
            System.out.println("read value = " + iValue);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    System.out.println("End of Data");
}