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

Introduction

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

Prototype

public LittleEndianDataInputStream(InputStream in) 

Source Link

Document

Creates a LittleEndianDataInputStream that wraps the given stream.

Usage

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 .  ja  va  2s. c om
    }
    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.jpmml.xgboost.XGBoostDataInput.java

public XGBoostDataInput(InputStream is) throws IOException {
    this.dis = new LittleEndianDataInputStream(init(new PushbackInputStream(is, 4)));
}

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From source file:org.glukit.dexcom.sync.LittleEndianDataInputFactory.java

@Override
public DataInput create(InputStream inputStream) {
    return new LittleEndianDataInputStream(inputStream);
}

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From source file:io.airlift.slice.InputStreamSliceInput.java

@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
public InputStreamSliceInput(InputStream inputStream) {
    checkNotNull(inputStream, "inputStream is null");
    pushbackInputStream = new PushbackInputStream(inputStream);
    countingInputStream = new CountingInputStream(pushbackInputStream);
    dataInputStream = new LittleEndianDataInputStream(countingInputStream);
}

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From source file:org.linguafranca.pwdb.kdb.KdbSerializer.java

/**
 * Construct a KDB database from the supplied inputstream.
 *
 * @param credentials the credentials//from  w w w .j av  a2 s . c  o m
 * @param kdbHeader a header to be populated with values read from the stream
 * @param inputStream an inputStream to read from
 * @return a constructed KdbDatabase
 * @throws IOException if reading of the inputStream fails
 * @throws IllegalStateException if decoding of KDB format fails
 */
public static KdbDatabase createKdbDatabase(Credentials credentials, KdbHeader kdbHeader,
        InputStream inputStream) throws IOException {
    // everything is little endian
    DataInput dataInput = new LittleEndianDataInputStream(inputStream);
    // check the magic values to verify file type
    checkSignature(dataInput);
    // load the header
    deserializeHeader(kdbHeader, dataInput);

    // Create a decrypted stream from where we have read to
    InputStream decryptedInputStream = kdbHeader.createDecryptedInputStream(credentials.getKey(), inputStream);

    // Wrap the decrypted stream in a digest stream
    MessageDigest digest = Encryption.getMessageDigestInstance();
    DigestInputStream digestInputStream = new DigestInputStream(decryptedInputStream, digest);

    // Start the dataInput at wherever we have got to in the stream
    dataInput = new LittleEndianDataInputStream(digestInputStream);

    // read the decrypted serialized form of all groups
    KdbDatabase kdbDatabase = new KdbDatabase();
    KdbGroup lastGroup = (KdbGroup) kdbDatabase.getRootGroup();
    for (long group = 0; group < kdbHeader.getGroupCount(); group++) {
        lastGroup = deserializeGroup(lastGroup, dataInput);
    }

    // read the decrypted serialized form of all entries
    for (long entry = 0; entry < kdbHeader.getEntryCount(); entry++) {
        deserializeEntry(kdbDatabase, dataInput);
    }

    // check that the digest is correct (one would imagine that it would all have failed horribly by now if not)
    if (!Arrays.equals(digest.digest(), kdbHeader.getContentHash())) {
        throw new IllegalStateException("Hash values did not match");
    }

    // close digest and all underlying streams
    digestInputStream.close();

    return kdbDatabase;
}

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From source file:org.apache.hadoop.hive.ql.io.slice.InputStreamSliceInput.java

@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
public InputStreamSliceInput(InputStream inputStream) {
    pushbackInputStream = new PushbackInputStream(inputStream);
    countingInputStream = new CountingInputStream(pushbackInputStream);
    dataInputStream = new LittleEndianDataInputStream(countingInputStream);
}

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From source file:de.johni0702.api.noteblock.parser.NbsParser.java

@Override
public Song parseFile(File file) throws IOException {
    FileInputStream inputStream = new FileInputStream(file);
    DataInput in = new LittleEndianDataInputStream(inputStream);

    int length = in.readShort();
    int height = in.readShort();
    String name = readString(in);
    String author = readString(in);
    String originalAuthor = readString(in);
    String description = readString(in);
    double tempo = in.readShort() / 100d;
    in.skipBytes(23);//from  ww  w  . ja  v  a2 s. c  om
    in.skipBytes(in.readInt());

    Layer[] layers = new Layer[height];
    for (int i = 0; i < layers.length; i++) {
        layers[i] = new Layer();
    }

    int jump;
    int tick = -1;
    while ((jump = in.readShort()) != 0) {
        tick += jump;
        int layer = -1;
        while ((jump = in.readShort()) != 0) {
            layer += jump;

            Instrument instrument = Instrument.forId(in.readByte());
            NotePitch pitch = notePitchForId((in.readByte() - 33) % 24);

            layers[layer].setNoteBlock(tick, new Note(instrument, pitch));
        }
    }

    for (Layer layer : layers) {
        layer.setName(readString(in));
        layer.setVolume(in.readByte() / 100d);
    }

    Song song = new Song(length, name, author, originalAuthor, description, tempo);
    song.getLayers().addAll(Arrays.asList(layers));
    return song;
}

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From source file:terralib.World.java

public World(File file) throws IOException {
    buffer = Files.map(file);//from w  w  w . j  av  a 2 s . c om

    parse(new LittleEndianDataInputStream(new ByteBufferInputStream(buffer)));

    buffer.rewind();
}

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From source file:org.ambud.marauder.source.ids.pcap.LibpcapFileReader.java

@Override
public void preProcess() throws IOException {
    validateFileLock();//  w w w  .  ja v  a2  s .  com
    fileHeader = new LibpcapGlobalHeader(getStream());
    if (fileHeader.isSwapped()) {
        this.reader = new LittleEndianDataInputStream(getStream());
    } else {
        this.reader = new DataInputStream(getStream());
    }
}

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From source file:org.ambud.marauder.source.ids.pcap.LibpcapGlobalHeader.java

public LibpcapGlobalHeader(InputStream inputStream) throws IOException {
    this.magicNumber |= inputStream.read() << 24;
    this.magicNumber |= inputStream.read() << 16;
    this.magicNumber |= inputStream.read() << 8;
    this.magicNumber |= inputStream.read();
    this.isSwapped = (this.magicNumber == 0xd4c3b2a1) ? true : false;
    DataInput temp = null;/*from  w  w  w . j a  va  2 s  .c om*/
    if (isSwapped) {
        temp = new LittleEndianDataInputStream(inputStream);
        this.versionMajor = temp.readUnsignedShort();
        this.versionMinor = temp.readUnsignedShort();
        this.thisZone = temp.readInt();
        this.sigFigs = temp.readInt();
        this.snaplen = temp.readInt();
        this.network = temp.readInt();
    } else {
        temp = new DataInputStream(inputStream);
        this.versionMajor = temp.readUnsignedShort();
        this.versionMinor = temp.readUnsignedShort();
        this.thisZone = temp.readInt();
        this.sigFigs = temp.readInt();
        this.snaplen = temp.readInt();
        this.network = temp.readInt();
    }
}

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