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.lambda3.indra.util.VectorIterator.java

public VectorIterator(File vectorsFile, long dimensions, boolean sparse) throws IOException {
    this.sparse = sparse;
    this.input = new LittleEndianDataInputStream(new FileInputStream(vectorsFile));
    parseHeadline(this.input);

    if (this.dimensions != (int) dimensions) {
        throw new IOException("inconsistent number of dimensions.");
    }/*from  ww w . jav a2s  . c  o m*/

    setCurrentContent();
}

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From source file:garmintools.adapters.garmin.TableOfContentsGarminAdapter.java

/**
 * Reading the table of contents does not fit well into the GarminAdapter.read interface
 * for two reasons://from w  w  w . j a  va  2  s  .  co  m
 * 1) the first entry in the TOC is for the TOC itself, so the length is not known a priori.
 * 2) it is useful to know the input file length to construct the TOC, and this is not available
 *    in the traditional GarminAdapter.read interface.
 */
public TableOfContents read(InputStream originalInputStream, int inputFileLength) throws IOException {
    LittleEndianDataInputStream inputStream = new LittleEndianDataInputStream(originalInputStream);
    TableOfContentsEntry toc = readTableOfContentsEntry(inputStream);
    Preconditions.checkState(toc.itemQuantity <= MAX_ITEM_QUANTITY);
    Preconditions.checkState(toc.itemLength == ITEM_LENGTH);
    Map<Integer, TableOfContentsEntry> offsetToEntries = new HashMap<>();
    ImmutableMap.Builder<Integer, Integer> emptySectionItemLengths = ImmutableMap.builder();
    for (int sectionNumber = 0; sectionNumber < toc.itemQuantity - 1; ++sectionNumber) {
        TableOfContentsEntry entry = TableOfContentsEntry.newBuilder(readTableOfContentsEntry(inputStream))
                .setSectionNumber(sectionNumber).build();
        if (entry.fileOffset == 0) {
            if (entry.itemLength > 0) {
                emptySectionItemLengths.put(sectionNumber, entry.itemLength);
            }
            continue; // the section is not present in the file.
        }
        offsetToEntries.put(entry.fileOffset, entry);
    }
    List<Integer> orderedDeclaredOffsets = new ArrayList<Integer>(
            new TreeSet<Integer>(offsetToEntries.keySet()));
    orderedDeclaredOffsets.add(inputFileLength);
    ImmutableMap.Builder<Integer, TableOfContentsEntry> mapBuilder = ImmutableMap.builder();
    for (int i = 0; i < orderedDeclaredOffsets.size() - 1; ++i) {
        int currentOffset = orderedDeclaredOffsets.get(i);
        int nextOffset = orderedDeclaredOffsets.get(i + 1);
        TableOfContentsEntry entry = TableOfContentsEntry.newBuilder(offsetToEntries.get(currentOffset))
                .setActualLength(Ints.checkedCast(nextOffset - currentOffset)).build();
        mapBuilder.put(entry.sectionNumber, entry);
    }
    return new TableOfContents(toc.itemQuantity, mapBuilder.build(), emptySectionItemLengths.build());
}

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

public void readBlocks(InputStream is, int nBlocks) throws IOException {

    LittleEndianDataInputStream lis = new LittleEndianDataInputStream(is);
    for (int i = 0; i < nBlocks; i++) {

        int compressionMethod = lis.read();
        int contentType = lis.read();
        int contentId = ITF8.readUnsignedITF8(lis);
        int size = ITF8.readUnsignedITF8(lis);
        int rawSize = ITF8.readUnsignedITF8(lis);

        byte[] blockData = new byte[size];
        lis.readFully(blockData);/*from w  ww. j a va  2s . c o m*/

        blockData = uncompress(blockData, compressionMethod);

        String tmp = new String(blockData);

        if (major >= 3) {
            int checksum = CramInt.int32(lis);
        }
    }
}

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From source file:com.google.classyshark.translator.xml.XmlDecompressor.java

public String decompressXml(InputStream is) throws IOException {
    StringBuilder result = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
    try (LittleEndianDataInputStream dis = new LittleEndianDataInputStream(is)) {
        //Getting and checking the marker for a valid XMl file
        int fileMarker = dis.readInt();
        if (fileMarker != PACKED_XML_IDENTIFIER) {
            throw new IOException(String.format(ERROR_INVALID_MAGIC_NUMBER, PACKED_XML_IDENTIFIER, fileMarker));
        }//from   ww w  . j av  a  2  s  .  c  o  m
        dis.skipBytes(12);
        List<String> packedStrings = parseStrings(dis);

        //Unknown content after the strings. Seeking for a start tag
        int tag;
        do {
            tag = dis.readInt();
        } while (tag != START_ELEMENT_TAG);

        int ident = 0;
        do {
            switch (tag) {
            case START_ELEMENT_TAG: {
                parseStartTag(result, dis, packedStrings, ident);
                ident++;
                break;
            }
            case END_ELEMENT_TAG: {
                ident--;
                parseEndTag(result, dis, packedStrings, ident);
                break;
            }
            case CDATA_TAG: {
                parseCDataTag(result, dis, packedStrings, ident);
                break;
            }
            default:
                System.err.println(String.format(ERROR_UNKNOWN_TAG, tag));
            }
            tag = dis.readInt();
        } while (tag != END_DOC_TAG);
        return result.toString();
    }
}

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From source file:brut.androlib.res.decoder.ARSCDecoder.java

private ARSCDecoder(InputStream arscStream, ResTable resTable, boolean storeFlagsOffsets, boolean keepBroken) {
    arscStream = mCountIn = new CountingInputStream(arscStream);
    if (storeFlagsOffsets) {
        mFlagsOffsets = new ArrayList<FlagsOffset>();
    } else {/*from   ww w.j a va  2  s  . com*/
        mFlagsOffsets = null;
    }
    // We need to explicitly cast to DataInput as otherwise the constructor is ambiguous.
    // We choose DataInput instead of InputStream as ExtDataInput wraps an InputStream in
    // a DataInputStream which is big-endian and ignores the little-endian behavior.
    mIn = new ExtDataInput((DataInput) new LittleEndianDataInputStream(arscStream));
    mResTable = resTable;
    mKeepBroken = keepBroken;
}

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From source file:sx.kenji.sharpserializerjvm.SharpSerializer.java

public Optional<Property> deserialize() {
    try {//from w  w w  . j a  va  2 s . com
        FileInputStream baseStream = new FileInputStream(targetFile);
        try (LittleEndianDataInputStream stream = new LittleEndianDataInputStream(baseStream)) {

            baseStream.getChannel().position(position);
            Deserializer deserializer = new Deserializer(stream, this);
            Property property = deserializer.deserialize();
            position = baseStream.getChannel().position();

            return Optional.ofNullable(createObject(property));
        }
    } catch (IOException e) {
        logger.error("Error opening target file '%s' for deserializing: `{}`.", targetFile, e.getMessage());
    }

    return Optional.empty();
}

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From source file:brut.androlib.res.decoder.AXmlResourceParser.java

public void open(InputStream stream) {
    close();/*from ww w.  j a v  a 2s  .c  o  m*/
    if (stream != null) {
        // We need to explicitly cast to DataInput as otherwise the constructor is ambiguous.
        // We choose DataInput instead of InputStream as ExtDataInput wraps an InputStream in
        // a DataInputStream which is big-endian and ignores the little-endian behavior.
        m_reader = new ExtDataInput((DataInput) new LittleEndianDataInputStream(stream));
    }
}

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From source file:org.necsave.NMPUtilities.java

public static Message decompress(CompressedMsg msg) {
    Inflater inflater = new Inflater();
    inflater.setInput(msg.getPayload());
    byte[] out = new byte[65535];
    try {//from w  w  w.ja  v  a2  s . c  o  m
        int len = inflater.inflate(out);
        Message decompressed = ProtoDefinition.getFactory().createMessage(msg.getMsgType(),
                ProtoDefinition.getInstance());
        ProtoDefinition.getInstance().deserializeFields(decompressed,
                new LittleEndianDataInputStream(new ByteArrayInputStream(out, 0, len)));
        return decompressed;
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}

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From source file:xyz.kuori.timeseries.TimeSeries.java

public int load(File archive) {
    FileInputStream fin = null;/*from  w w w. ja  v a 2s.  co  m*/

    try {
        fin = new FileInputStream(archive);
    } catch (Exception e) {
        init(0);
        return (-1);
    }

    int record_count = (int) (archive.length() / 16);
    init(record_count);

    LittleEndianDataInputStream in = new LittleEndianDataInputStream(fin);

    try {
        for (int i = 0; i < record_count; i++) {
            timestamps[i] = in.readLong();
            values[i] = in.readDouble();
        }
    } catch (Exception e) {
        init(0);
        return (-1);
    }

    return (record_count);
}

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From source file:com.broadwave.android.brut.androlib.res.decoder.ARSCDecoder.java

private ARSCDecoder(InputStream arscStream, ResTable resTable, boolean storeFlagsOffsets, boolean keepBroken) {
    if (storeFlagsOffsets) {
        arscStream = mCountIn = new CountingInputStream(arscStream);
        mFlagsOffsets = new ArrayList<FlagsOffset>();
    } else {//from w  w  w .ja  v  a2  s .c o m
        mCountIn = null;
        mFlagsOffsets = null;
    }
    mIn = new ExtDataInput((DataInput) new LittleEndianDataInputStream(arscStream));
    mResTable = resTable;
    mKeepBroken = keepBroken;
}

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