Example usage for com.google.common.io LittleEndianDataInputStream readByte

Introduction

In this page you can find the example usage for com.google.common.io LittleEndianDataInputStream readByte.

Prototype

@Override
    public byte readByte() throws IOException 

Source Link

Usage

From source file:pw.simplyintricate.bitcoin.models.datastructures.VariableInteger.java

public static VariableInteger fromInputStream(LittleEndianDataInputStream reader) throws IOException {
    byte determiningSize = reader.readByte();
    UnsignedInteger value;//w  ww.j a  va  2s  .co  m
    if (determiningSize < 0xfd) {
        value = UnsignedInteger.fromIntBits(determiningSize);
    } else if (determiningSize <= 0xffff) {
        int followUpValue = reader.readUnsignedShort();
        value = UnsignedInteger.fromIntBits(followUpValue);
    } else if (determiningSize <= 0xffffffff) {
        int followUpValue = reader.readInt();
        value = UnsignedInteger.valueOf(followUpValue);
    } else {
        long followUpValue = reader.readLong();
        value = UnsignedInteger.valueOf(followUpValue);
    }

    VariableInteger variableInteger = new VariableInteger(value);

    return variableInteger;
}

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From source file:org.broad.igv.sam.cram.CRAMFileReader.java

public static CRAMFile openFile(String path) throws IOException {

    SeekableStream stream = IGVSeekableStreamFactory.getInstance().getStreamFor(path);

    LittleEndianDataInputStream lis = new LittleEndianDataInputStream(stream);

    byte[] mn = new byte[4];
    for (int i = 0; i < 4; i++) {
        mn[i] = lis.readByte();
    }/*w w  w.j  a v a  2  s.  c  o m*/
    String magicNumber = new String(mn);

    int majorFormatNumber = lis.readUnsignedByte();
    int minorFormatNumber = lis.readUnsignedByte();

    byte[] fileId = new byte[20];

    for (int i = 0; i < 20; i++) {
        fileId[i] = lis.readByte();
    }

    String fileName = new String(fileId);

    return new CRAMFile(path, majorFormatNumber, minorFormatNumber, fileName);
}

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From source file:org.linguafranca.pwdb.kdbx.stream_3_1.KdbxSerializer.java

/**
 * Populate a KdbxHeader from the input stream supplied
 * @param kdbxHeader a header to be populated
 * @param inputStream an input stream/*w w  w  .j  av  a2  s .  com*/
 * @return the populated KdbxHeader
 * @throws IOException on error
 */
public static KdbxHeader readKdbxHeader(KdbxHeader kdbxHeader, InputStream inputStream) throws IOException {

    MessageDigest digest = Encryption.getMessageDigestInstance();
    // we do not close this stream, otherwise we lose our place in the underlying stream
    DigestInputStream digestInputStream = new DigestInputStream(inputStream, digest);
    // we do not close this stream, otherwise we lose our place in the underlying stream
    LittleEndianDataInputStream ledis = new LittleEndianDataInputStream(digestInputStream);

    if (!verifyMagicNumber(ledis)) {
        throw new IllegalStateException("Magic number did not match");
    }

    if (!verifyFileVersion(ledis)) {
        throw new IllegalStateException("File version did not match");
    }

    byte headerType;
    while ((headerType = ledis.readByte()) != HeaderType.END) {
        switch (headerType) {

        case HeaderType.COMMENT:
            getByteArray(ledis);
            break;

        case HeaderType.CIPHER_ID:
            kdbxHeader.setCipherUuid(getByteArray(ledis));
            break;

        case HeaderType.COMPRESSION_FLAGS:
            kdbxHeader.setCompressionFlags(getInt(ledis));
            break;

        case HeaderType.MASTER_SEED:
            kdbxHeader.setMasterSeed(getByteArray(ledis));
            break;

        case HeaderType.TRANSFORM_SEED:
            kdbxHeader.setTransformSeed(getByteArray(ledis));
            break;

        case HeaderType.TRANSFORM_ROUNDS:
            kdbxHeader.setTransformRounds(getLong(ledis));
            break;

        case HeaderType.ENCRYPTION_IV:
            kdbxHeader.setEncryptionIv(getByteArray(ledis));
            break;

        case HeaderType.PROTECTED_STREAM_KEY:
            kdbxHeader.setProtectedStreamKey(getByteArray(ledis));
            break;

        case HeaderType.STREAM_START_BYTES:
            kdbxHeader.setStreamStartBytes(getByteArray(ledis));
            break;

        case HeaderType.INNER_RANDOM_STREAM_ID:
            kdbxHeader.setInnerRandomStreamId(getInt(ledis));
            break;

        default:
            throw new IllegalStateException("Unknown File Header");
        }
    }

    // consume length etc. following END flag
    getByteArray(ledis);

    kdbxHeader.setHeaderHash(digest.digest());
    return kdbxHeader;
}

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From source file:org.lambda3.indra.util.VectorIterator.java

private void parseHeadline(LittleEndianDataInputStream input) throws IOException {
    ByteArrayDataOutput out = ByteStreams.newDataOutput();
    byte c;/*from  w  w w.  j av  a 2  s.c o m*/

    while ((c = input.readByte()) != '\n') {
        out.writeByte(c);
    }

    String[] headline = new String(out.toByteArray(), StandardCharsets.UTF_8).split(" ");
    this.numberOfVectors = Integer.parseInt(headline[0]);
    this.dimensions = Integer.parseInt(headline[1]);
}

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