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:com.polyvi.xface.util.XFileUtils.java

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

    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:com.codebutler.farebot.card.desfire.settings.StandardDesfireFileSettings.java

StandardDesfireFileSettings(ByteArrayInputStream stream) {
    super(stream);
    byte[] buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);//from  w  w w .  j a v  a 2 s .c om
    mFileSize = Utils.byteArrayToInt(buf);
}

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From source file:com.codebutler.farebot.card.desfire.settings.RecordDesfireFileSettings.java

public RecordDesfireFileSettings(ByteArrayInputStream stream) {
    super(stream);

    byte[] buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);//from   ww w.j  a  va  2  s  .co  m
    mRecordSize = Utils.byteArrayToInt(buf);

    buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    mMaxRecords = Utils.byteArrayToInt(buf);

    buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    mCurRecords = Utils.byteArrayToInt(buf);
}

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From source file:com.codebutler.farebot.card.desfire.RecordDesfireFileSettings.java

RecordDesfireFileSettings(ByteArrayInputStream stream) {
    super(stream);

    byte[] buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);//from www . ja v a 2  s. c  o  m
    mRecordSize = Utils.byteArrayToInt(buf);

    buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    mMaxRecords = Utils.byteArrayToInt(buf);

    buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    mCurRecords = Utils.byteArrayToInt(buf);
}

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From source file:org.apache.oodt.product.handlers.ofsn.MD5GetHandler.java

public byte[] retrieveChunk(String filepath, long offset, int length) throws ProductException {
    try {//  w w  w .j a v  a 2s . com
        String hash = this.hashData(FileUtils.readFileToByteArray(new File(filepath)));
        byte[] retBytes = new byte[length];
        byte[] hashBytes = hash.getBytes();
        ByteArrayInputStream is = new ByteArrayInputStream(hashBytes);
        is.skip(offset);
        is.read(retBytes, 0, length);
        return retBytes;
    } catch (IOException e) {
        LOG.log(Level.SEVERE, e.getMessage());
        throw new ProductException(
                "Error reading bytes from file: [" + filepath + "] MD5: Message: " + e.getMessage());
    }
}

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From source file:com.codebutler.farebot.card.desfire.settings.ValueDesfireFileSettings.java

public ValueDesfireFileSettings(ByteArrayInputStream stream) {
    super(stream);

    byte[] buf = new byte[4];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);//from   w  ww.j av a2  s  .co  m
    mLowerLimit = Utils.byteArrayToInt(buf);

    buf = new byte[4];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    mUpperLimit = Utils.byteArrayToInt(buf);

    buf = new byte[4];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    mLimitedCreditValue = Utils.byteArrayToInt(buf);

    buf = new byte[1];
    stream.read(buf, 0, buf.length);
    mLimitedCreditEnabled = buf[0] != 0x00;
}

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From source file:com.codebutler.farebot.card.desfire.raw.RawDesfireFileSettings.java

@NonNull
private StandardDesfireFileSettings createStandardDesfireFileSettings(byte fileType, byte commSetting,
        byte[] accessRights, ByteArrayInputStream stream) {
    byte[] buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);//from w w  w  .  j  a  va 2s. c  o m
    int fileSize = ByteUtils.byteArrayToInt(buf);
    return StandardDesfireFileSettings.create(fileType, commSetting, accessRights, fileSize);
}

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From source file:com.codebutler.farebot.card.desfire.raw.RawDesfireFileSettings.java

@NonNull
private RecordDesfireFileSettings createRecordDesfireFileSettings(byte fileType, byte commSetting,
        byte[] accessRights, ByteArrayInputStream stream) {
    byte[] buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);/*from w  w  w.j  a  va 2  s.  c  om*/
    int recordSize = ByteUtils.byteArrayToInt(buf);

    buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    int maxRecords = ByteUtils.byteArrayToInt(buf);

    buf = new byte[3];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    int curRecords = ByteUtils.byteArrayToInt(buf);

    return RecordDesfireFileSettings.create(fileType, commSetting, accessRights, recordSize, maxRecords,
            curRecords);
}

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From source file:com.codebutler.farebot.card.desfire.raw.RawDesfireFileSettings.java

@NonNull
private ValueDesfireFileSettings createValueDesfireFileSettings(byte fileType, byte commSetting,
        byte[] accessRights, ByteArrayInputStream stream) {
    byte[] buf = new byte[4];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);/*from   w  w  w .  java 2 s  .co  m*/
    int lowerLimit = ByteUtils.byteArrayToInt(buf);

    buf = new byte[4];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    int upperLimit = ByteUtils.byteArrayToInt(buf);

    buf = new byte[4];
    stream.read(buf, 0, buf.length);
    ArrayUtils.reverse(buf);
    int limitedCreditValue = ByteUtils.byteArrayToInt(buf);

    buf = new byte[1];
    stream.read(buf, 0, buf.length);
    boolean limitedCreditEnabled = buf[0] != 0x00;

    return ValueDesfireFileSettings.create(fileType, commSetting, accessRights, lowerLimit, upperLimit,
            limitedCreditValue, limitedCreditEnabled);
}

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From source file:org.ringside.client.BaseRequestHandler.java

protected CharSequence md5(CharSequence str) {
    try {//from  www  . ja  v  a2  s.  c  o  m
        MessageDigest md = MessageDigest.getInstance("MD5");
        ByteArrayInputStream bais = new ByteArrayInputStream(str.toString().getBytes());
        byte[] bytes = new byte[1024];
        int len;

        while ((len = bais.read(bytes, 0, bytes.length)) != -1) {
            md.update(bytes, 0, len);
        }

        bytes = md.digest();

        StringBuffer sb = new StringBuffer(bytes.length * 2);

        for (int i = 0; i < bytes.length; i++) {
            int hi = (bytes[i] >> 4) & 0xf;
            int lo = bytes[i] & 0xf;
            sb.append(Character.forDigit(hi, 16));
            sb.append(Character.forDigit(lo, 16));
        }

        return sb.toString();
    } catch (Exception e) {
        LOG.error("Failed to generate MD5", e);
        return "";
    }
}

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