Example usage for java.io DataInputStream readFully

Introduction

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

Prototype

public final void readFully(byte b[]) throws IOException

Source Link

Document

See the general contract of the readFully method of DataInput .

Usage

From source file:org.renjin.primitives.io.connections.Connections.java

@Internal
public static String readChar(@Current Context context, SEXP connIndex, int nchars,
        @Recycle(false) boolean useBytes) throws IOException {

    Connection conn = getConnection(context, connIndex);

    if (useBytes) {
        byte[] bytes = new byte[nchars];
        DataInputStream dis = new DataInputStream(conn.getInputStream());
        dis.readFully(bytes);
        return new String(bytes, Charsets.UTF_8);
    } else {/*from  ww  w. j  a  v  a 2 s .c o  m*/

        // it's not clear to me whether the read(char[]) methods are
        // safe to use with unicode...
        Reader in = conn.getReader();
        StringBuilder result = new StringBuilder();
        for (int i = 0; i != nchars; ++i) {
            result.appendCodePoint(in.read());
        }
        return result.toString();
    }
}

From source file:org.jboss.capedwarf.tools.BulkLoader.java

private static byte[] readArray(DataInputStream in) {
    try {/*w  w  w . j ava 2s  .  co  m*/
        int arraySize;
        try {
            arraySize = in.readInt();
        } catch (EOFException e) {
            return null;
        }
        byte[] array = new byte[arraySize];
        in.readFully(array);
        return array;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:HexUtil.java

/**
* Read a (reasonably short) BigInteger from a DataInputStream
* @param dis the stream to read from/*from  www  .j  av a 2 s. com*/
* @return a BigInteger
*/
public static BigInteger readBigInteger(DataInputStream dis) throws IOException {
    short i = dis.readShort();
    if (i < 0)
        throw new IOException("Invalid BigInteger length: " + i);
    byte[] buf = new byte[i];
    dis.readFully(buf);
    return new BigInteger(1, buf);
}

From source file:org.codice.opendx.TestNITFInputTransformer.java

private static byte[] getThumbnailBytes() throws IOException {
    DataInputStream is = new DataInputStream(new FileInputStream(
            Thread.currentThread().getContextClassLoader().getResource("binfile.dat").getFile()));
    byte[] thumbnail = new byte[is.available()];
    is.readFully(thumbnail);
    is.close();/*from   w  w w  .j  av  a  2  s  .  c om*/
    return thumbnail;
}

From source file:hudson.console.ConsoleNote.java

/**
 * Skips the encoded console note.//w  ww  .  ja v  a 2 s.c om
 */
public static void skip(DataInputStream in) throws IOException {
    byte[] preamble = new byte[PREAMBLE.length];
    in.readFully(preamble);
    if (!Arrays.equals(preamble, PREAMBLE))
        return; // not a valid preamble

    DataInputStream decoded = new DataInputStream(new UnbufferedBase64InputStream(in));
    int sz = decoded.readInt();
    IOUtils.skip(decoded, sz);

    byte[] postamble = new byte[POSTAMBLE.length];
    in.readFully(postamble);
}

From source file:com.maydesk.base.util.PDUtil.java

public static byte[] readBytesFromFile(File file) throws IOException {
    byte[] bytesOfFile = new byte[(int) file.length()];
    DataInputStream dis = new DataInputStream(new FileInputStream(file));
    dis.readFully(bytesOfFile);
    dis.close();/*w  ww  . j a  va 2s  . co m*/
    return bytesOfFile;
}

From source file:org.apache.flink.runtime.metrics.dump.MetricDumpSerialization.java

private static String deserializeString(DataInputStream dis) throws IOException {
    int stringLength = dis.readInt();
    byte[] bytes = new byte[stringLength];
    dis.readFully(bytes);
    return new String(bytes);
}

From source file:net.timewalker.ffmq4.storage.data.impl.journal.JournalRecovery.java

private static DataBlockWriteOperation readDataBlockWriteOperation(DataInputStream in) throws IOException {
    long transactionId = in.readLong();
    long blockOffset = in.readLong();
    int len = in.readInt();
    byte[] dataBlock = new byte[len];
    in.readFully(dataBlock);

    return new DataBlockWriteOperation(transactionId, -1, blockOffset, dataBlock);
}

From source file:net.timewalker.ffmq4.storage.data.impl.journal.JournalRecovery.java

private static MetaDataBlockWriteOperation readMetaDataBlockWriteOperation(DataInputStream in)
        throws IOException {
    long transactionId = in.readLong();
    long metaDataOffset = in.readLong();
    int len = in.readInt();
    byte[] metaData = new byte[len];
    in.readFully(metaData);

    return new MetaDataBlockWriteOperation(transactionId, metaDataOffset, metaData);
}

From source file:hudson.console.ConsoleNote.java

/**
 * Reads a note back from {@linkplain #encodeTo(OutputStream) its encoded form}.
 *
 * @param in//w  w  w. j av a  2s.co  m
 *      Must point to the beginning of a preamble.
 *
 * @return null if the encoded form is malformed.
 */
public static ConsoleNote readFrom(DataInputStream in) throws IOException, ClassNotFoundException {
    try {
        byte[] preamble = new byte[PREAMBLE.length];
        in.readFully(preamble);
        if (!Arrays.equals(preamble, PREAMBLE))
            return null; // not a valid preamble

        DataInputStream decoded = new DataInputStream(new UnbufferedBase64InputStream(in));
        int sz = decoded.readInt();
        byte[] buf = new byte[sz];
        decoded.readFully(buf);

        byte[] postamble = new byte[POSTAMBLE.length];
        in.readFully(postamble);
        if (!Arrays.equals(postamble, POSTAMBLE))
            return null; // not a valid postamble

        ObjectInputStream ois = new ObjectInputStreamEx(new GZIPInputStream(new ByteArrayInputStream(buf)),
                Jenkins.getInstance().pluginManager.uberClassLoader);
        try {
            return (ConsoleNote) ois.readObject();
        } finally {
            ois.close();
        }
    } catch (Error e) {
        // for example, bogus 'sz' can result in OutOfMemoryError.
        // package that up as IOException so that the caller won't fatally die.
        throw new IOException(e);
    }
}