Example usage for java.io ObjectInputStream read

Introduction

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

Prototype

public int read() throws IOException 

Source Link

Document

Reads a byte of data.

Usage

From source file:Main.java

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

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    oout.writeUTF("Hello World from java2s.com");
    oout.flush();//from  www . ja v a 2 s  .  c  om
    oout.close();

    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    for (int i = 0; i < ois.available();) {
        System.out.print((char) ois.read());
    }
    ois.close();
}

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From source file:Main.java

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

    FileOutputStream out = new FileOutputStream("test.txt");
    ObjectOutputStream oout = new ObjectOutputStream(out);

    // write something in the file
    oout.writeUTF("Hello World from java2s.com");
    oout.flush();/*from  www  .  j  a  v  a  2  s .  c  o  m*/

    // create an ObjectInputStream for the file we created before
    ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt"));

    // read from the stream
    for (int i = 0; i < ois.available();) {
        System.out.print((char) ois.read());
    }

    ois.close();

}

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From source file:Main.java

public static Stroke readStroke(ObjectInputStream in) throws IOException, ClassNotFoundException {
    boolean wroteStroke = in.readBoolean();
    if (wroteStroke) {
        boolean serializedStroke = in.readBoolean();
        if (serializedStroke) {
            return (Stroke) in.readObject();
        } else {/*ww w .  j  a  v a 2 s  .  c  om*/
            float[] dash = null;
            int dashLength = in.read();

            if (dashLength != 0) {
                dash = new float[dashLength];
                for (int i = 0; i < dashLength; i++) {
                    dash[i] = in.readFloat();
                }
            }

            float lineWidth = in.readFloat();
            int endCap = in.readInt();
            int lineJoin = in.readInt();
            float miterLimit = in.readFloat();
            float dashPhase = in.readFloat();

            return new BasicStroke(lineWidth, endCap, lineJoin, miterLimit, dash, dashPhase);
        }
    } else {
        return null;
    }
}

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From source file:com.healthmarketscience.rmiio.DirectRemoteInputStream.java

/**
 * Reads the state of this object and all of the underlying stream's data
 * directly from the given ObjectInputStream. The stream data is stored in
 * a temporary file in the default java temp directory with the name {@code "stream_<num>.dat"}.
 *//* w  w  w.j  a v  a 2 s  .  c  om*/
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
    in.defaultReadObject();

    // read the default chunk size from the incoming file
    final int defaultChunkSize = in.readInt();
    checkChunkSize(defaultChunkSize);

    // setup a temp file for the incoming data (make sure it gets cleaned up
    // somehow)
    _tmpFile = File.createTempFile("stream_", ".dat");
    _tmpFile.deleteOnExit();

    FileOutputStream out = new FileOutputStream(_tmpFile);
    try {
        // limit buffer size in case of malicious input
        byte[] transferBuf = new byte[Math.min(defaultChunkSize, RemoteInputStreamServer.DEFAULT_CHUNK_SIZE)];
        while (true) {

            // read in another chunk
            int chunkCode = in.read();
            if (chunkCode == EOF_CODE) {
                // all done
                break;
            }

            int readLen = defaultChunkSize;
            if (chunkCode != DEFAULT_CHUNK_CODE) {
                readLen = in.readInt();
                checkChunkSize(readLen);
            }

            // copy chunk into temp file
            copy(in, out, transferBuf, readLen);

        }

        // attempt to close the temp file. if successful, we're good to go
        out.close();

        // sweet, setup final state
        _monitor = RemoteInputStreamServer.DUMMY_MONITOR;
        _in = new BufferedInputStream(new FileInputStream(_tmpFile));

        // the underlying stream is now in it's initial state
        _consumptionState = ConsumptionState.NONE;
        _gotEOF = false;

    } finally {
        RmiioUtil.closeQuietly(out);
    }

}

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From source file:org.scantegrity.crypto.FlatFileTable.java

public FlatFileTable(String p_path) throws FileNotFoundException, IOException, ClassNotFoundException {
    ObjectInputStream l_in = new ObjectInputStream(new FileInputStream(p_path));
    int l_size = l_in.read();

    c_list = new ArrayList<ArrayList<Object>>();

    while (l_in.available() > 0) {
        ArrayList<Object> l_row = new ArrayList<Object>();
        for (int x = 0; x < l_size; x++)
            l_row.add(l_in.readObject());
        c_list.add(l_row);/*w  w w. j  a v a 2 s . c om*/
    }
}

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