Example usage for java.io DataInputStream read

Introduction

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

Prototype

public int read() throws IOException 

Source Link

Document

Reads the next byte of data from this input stream.

Usage

From source file:Main.java

public static void main(String[] args) throws IOException {
    byte[] b = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
    FileOutputStream fos = new FileOutputStream("c:\\test.txt");
    DataOutputStream dos = new DataOutputStream(fos);
    for (byte j : b) {
        dos.writeByte(j);/*from  ww w .ja v a 2  s  . c  o m*/
    }
    dos.flush();

    InputStream is = new FileInputStream("c:\\test.txt");

    DataInputStream dis = new DataInputStream(is);

    while (dis.available() > 0) {
        int k = dis.read();
        System.out.print(k);
        dis.skipBytes(1);
    }

}

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From source file:Main.java

public static String readNullableString(DataInputStream in) throws IOException {
    if (in.read() != 0) {
        return in.readUTF();
    } else {//from www. j av a 2 s  .  c om
        return null;
    }
}

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From source file:Main.java

public static long uint64FromStream(DataInputStream stream) throws IOException {
    return ((stream.read() & 0xFFL) << 0) | ((stream.read() & 0xFFL) << 8) | ((stream.read() & 0xFFL) << 16)
            | ((stream.read() & 0xFFL) << 24) | ((stream.read() & 0xFFL) << 32)
            | ((stream.read() & 0xFFL) << 40) | ((stream.read() & 0xFFL) << 48)
            | ((stream.read() & 0xFFL) << 56);
}

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From source file:Main.java

public static int uint16FromStream(DataInputStream stream) throws IOException {
    return (int) (((stream.read() & 0xFFL) << 0) | ((stream.read() & 0xFFL) << 8));
}

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From source file:Main.java

public static int uint16FromStreamBE(DataInputStream stream) throws IOException {
    return (int) (((stream.read() & 0xFFL) << 8) | ((stream.read() & 0xFFL) << 0));
}

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From source file:Main.java

public static int uint32FromStream(DataInputStream stream) throws IOException {
    return (int) (((stream.read() & 0xFFL) << 0) | ((stream.read() & 0xFFL) << 8)
            | ((stream.read() & 0xFFL) << 16) | ((stream.read() & 0xFFL) << 24));
}

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

public static AbstractJournalOperation readJournalOperation(DataInputStream in) {
    try {/*from   w ww .  j  a  v a 2s. c om*/
        int operationType = in.read();
        if (operationType == -1)
            return null; // EOF

        switch (operationType) {
        case 0: // Padding
            return null;

        case AbstractJournalOperation.TYPE_META_DATA_WRITE:
            return readMetaDataWriteOperation(in);

        case AbstractJournalOperation.TYPE_META_DATA_BLOCK_WRITE:
            return readMetaDataBlockWriteOperation(in);

        case AbstractJournalOperation.TYPE_DATA_BLOCK_WRITE:
            return readDataBlockWriteOperation(in);

        case AbstractJournalOperation.TYPE_STORE_EXTEND:
            return readStoreExtendOperation(in);

        case AbstractJournalOperation.TYPE_COMMIT:
            return readCommitOperation(in);

        default:
            throw new IllegalArgumentException("Invalid operation type : " + operationType);
        }
    } catch (Exception e) {
        log.error("Corrupted or truncated journal operation, skipping.", e);
        return null;
    }
}

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From source file:org.beanfuse.archiver.ZipUtils.java

public static File zip(List fileNames, String zipPath, String encoding) {
    try {//  w ww . ja  va2s.c om
        FileOutputStream f = new FileOutputStream(zipPath);
        ZipOutputStream out = new ZipOutputStream(new DataOutputStream(f));
        out.setEncoding(encoding);
        for (int i = 0; i < fileNames.size(); i++) {
            DataInputStream in = new DataInputStream(new FileInputStream(fileNames.get(i).toString()));
            out.putNextEntry(new org.apache.tools.zip.ZipEntry(
                    StringUtils.substringAfterLast(fileNames.get(i).toString(), File.separator)));
            int c;
            while ((c = in.read()) != -1) {
                out.write(c);
            }
            in.close();
        }
        out.close();
        return new File(zipPath);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:Main.java

private static boolean isRootOk(DataOutputStream output, DataInputStream input,
        final DataInputStream errInput) {
    if (output != null) {
        try {//from  ww w  .j a  v  a  2 s.  c o m
            output.writeBytes("id\n");
            output.flush();
            String a = input.readLine();
            if (a.contains("root") || a.contains("uid=0")) {
                return true;
            }
            new Thread() {
                @Override
                public void run() {
                    try {
                        errInput.read();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                };
            }.start();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return false;
}

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From source file:com.android.hierarchyviewerlib.device.DeviceBridge.java

private static boolean readLayer(DataInputStream in, PsdFile psd) {
    try {//  w  w  w.j av a  2 s.  co  m
        if (in.read() == 2) {
            return false;
        }
        String name = in.readUTF();
        boolean visible = in.read() == 1;
        int x = in.readInt();
        int y = in.readInt();
        int dataSize = in.readInt();

        byte[] data = new byte[dataSize];
        int read = 0;
        while (read < dataSize) {
            read += in.read(data, read, dataSize - read);
        }

        ByteArrayInputStream arrayIn = new ByteArrayInputStream(data);
        BufferedImage chunk = ImageIO.read(arrayIn);

        // Ensure the image is in the right format
        BufferedImage image = new BufferedImage(chunk.getWidth(), chunk.getHeight(),
                BufferedImage.TYPE_INT_ARGB);
        Graphics2D g = image.createGraphics();
        g.drawImage(chunk, null, 0, 0);
        g.dispose();

        psd.addLayer(name, image, new Point(x, y), visible);

        return true;
    } catch (Exception e) {
        return false;
    }
}

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