Examples of LittleEndianInputStream

de.undercouch.bson4jackson.io.LittleEndianInputStream
Works like {@link DataInputStream} but reads values usinglittle-endian encoding. Apart from that, it provides a method that reads an UTF-8 encoded string without reading the number of bytes from the input stream. @author Michel Kraemer
htsjdk.tribble.util.LittleEndianInputStream
org.apache.poi.util.LittleEndianInputStream
Wraps an {@link InputStream} providing {@link LittleEndianInput}
This class does not buffer any input, so the stream read position maintained by this class is consistent with that of the inner stream. @author Josh Micich

Examples of htsjdk.tribble.util.LittleEndianInputStream

    *       zoomLevel - level of zoom
    *       isLowToHigh - indicate byte order is low to high, else is high to low
    * */
    private void readZoomLevelHeader(long fileOffset, int zoomLevel, boolean isLowToHigh) {


       LittleEndianInputStream lbdis = null;
       DataInputStream bdis = null;


        byte[] buffer = new byte[ZOOM_LEVEL_HEADER_SIZE];


            try {


            // Read zoom header into a buffer
            fis.seek(fileOffset);
            fis.readFully(buffer);


            // decode header
            if(isLowToHigh)
                lbdis = new LittleEndianInputStream(new ByteArrayInputStream(buffer));
            else
                bdis = new DataInputStream(new ByteArrayInputStream(buffer));


            // Get zoom level information
            if(isLowToHigh){
                reductionLevel = lbdis.readInt();
                reserved = lbdis.readInt();
                dataOffset = lbdis.readLong();
                indexOffset = lbdis.readLong();
            }
            else {
                reductionLevel = bdis.readInt();
                reserved = bdis.readInt();
                dataOffset = bdis.readLong();

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Examples of htsjdk.tribble.util.LittleEndianInputStream

  *
  * Returns status of for tree header read; true if read, false if not.
  * */
   private boolean readHeader(SeekableStream fis, long fileOffset, boolean isLowToHigh){


   LittleEndianInputStream lbdis;
   DataInputStream bdis;
      
    byte[] buffer = new byte[RPTREE_HEADER_SIZE];


   try {
       // Read R+ tree header into a buffer
       fis.seek(fileOffset);
       fis.readFully(buffer);


       // decode header
       if(isLowToHigh){
           lbdis = new LittleEndianInputStream(new ByteArrayInputStream(buffer));
           magic = lbdis.readInt();


           // check for a valid B+ Tree Header
           if(magic != RPTREE_MAGIC_LTH)
               return false;


           // Get mChromosome B+ header information
           blockSize = lbdis.readInt();
           itemCount = lbdis.readLong();
           startChromID = lbdis.readInt();
           startBase = lbdis.readInt();
           endChromID = lbdis.readInt();
           endBase = lbdis.readInt();
           endFileOffset = lbdis.readLong();
           itemsPerSlot = lbdis.readInt();
           reserved = lbdis.readInt();
       }
       else {
           bdis = new DataInputStream(new ByteArrayInputStream(buffer));


           // check for a valid B+ Tree Header

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Examples of htsjdk.tribble.util.LittleEndianInputStream

            fis.seek(zoomFormatOffset);
            fis.readFully(buffer);


            // decode header - or fail
            if(this.isLowToHigh) {
                LittleEndianInputStream lbdis = new LittleEndianInputStream(new ByteArrayInputStream(buffer));
                zoomRecordCount = lbdis.readInt();
            }
            else {
                DataInputStream bdis = new DataInputStream(new ByteArrayInputStream(buffer));
                zoomRecordCount = bdis.readInt();
            }

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Examples of htsjdk.tribble.util.LittleEndianInputStream


    * */


    static RPTreeNode readRPTreeNode(SeekableStream fis, long fileOffset, boolean isLowToHigh, boolean forceDescend) {


        LittleEndianInputStream lbdis = null; // low o high byte stream reader
        DataInputStream bdis = null;    // high to low byte stream reader


        byte[] buffer = new byte[RPTREE_NODE_FORMAT_SIZE];
        RPTreeNode thisNode = null;


        try {


            // Read node format into a buffer
            fis.seek(fileOffset);
            fis.readFully(buffer);


            if (isLowToHigh) {
                lbdis = new LittleEndianInputStream(new ByteArrayInputStream(buffer));
            } else {
                bdis = new DataInputStream(new ByteArrayInputStream(buffer));
            }


            // find node type
            byte type;
            if (isLowToHigh) {
                type = lbdis.readByte();
            } else {
                type = bdis.readByte();
            }


            boolean isLeaf;
            int itemSize;
            if (type == 1) {
                isLeaf = true;
                itemSize = RPTREE_NODE_LEAF_ITEM_SIZE;
                thisNode = new RPTreeNode(true);
            } else {
                isLeaf = false;
                itemSize = RPTREE_NODE_CHILD_ITEM_SIZE;
                thisNode = new RPTreeNode(false);
            }
            //nodeCount++;


            int itemCount;
            if (isLowToHigh) {
                lbdis.readByte();          // reserved - not currently used
                itemCount = lbdis.readShort();
            } else {
                bdis.readByte();          // reserved - not currently used
                itemCount = bdis.readShort();
            }


            int itemBlockSize = itemCount * itemSize;
            buffer = new byte[itemBlockSize];            // allocate buffer for item sisze
            fis.readFully(buffer);
            if (isLowToHigh)
                lbdis = new LittleEndianInputStream(new ByteArrayInputStream(buffer));
            else
                bdis = new DataInputStream(new ByteArrayInputStream(buffer));


            // get the node items - leaves or child nodes
            int startChromID, endChromID;
            int startBase, endBase;
            for (int item = 0; item < itemCount; ++item) {


                // always extract the bounding rectangle
                if (isLowToHigh) {
                    startChromID = lbdis.readInt();
                    startBase = lbdis.readInt();
                    endChromID = lbdis.readInt();
                    endBase = lbdis.readInt();
                } else {
                    startChromID = bdis.readInt();
                    startBase = bdis.readInt();
                    endChromID = bdis.readInt();
                    endBase = bdis.readInt();
                }


                if (isLeaf) {
                    long dataOffset;
                    long dataSize;
                    if (isLowToHigh) {
                        dataOffset = lbdis.readLong();
                        dataSize = lbdis.readLong();
                    } else {
                        dataOffset = bdis.readLong();
                        dataSize = bdis.readLong();
                    }


                    thisNode.insertItem(new RPTreeLeafNodeItem(startChromID, startBase, endChromID, endBase,
                            dataOffset, dataSize));
                } else {
                    // get the child node pointed to in the node item
                    long nodeOffset;
                    if (isLowToHigh) {
                        nodeOffset = lbdis.readLong();
                    } else {
                        nodeOffset = bdis.readLong();
                    }


                    // Recursive call to read next child node

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Examples of htsjdk.tribble.util.LittleEndianInputStream

            throw new RuntimeException(error, ex);
        }


        // wrap the bed buffer as an input stream
        if (this.isLowToHigh)
            lbdis = new LittleEndianInputStream(new ByteArrayInputStream(bedBuffer));
        else
            dis = new DataInputStream(new ByteArrayInputStream(bedBuffer));


        // initialize unread data size
        remDataSize = bedBuffer.length;

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Examples of org.apache.poi.util.LittleEndianInputStream

                                 "6C, 00, " + //the smallest width in pixels allowed for the dropdown window
                                 "00, 00, " +  //num chars
                                 "00, " +      //compression flag
                                 "00");        //padding byte


        LittleEndianInputStream in = new LittleEndianInputStream(new ByteArrayInputStream(data));


        LbsDataSubRecord.LbsDropData lbs = new LbsDataSubRecord.LbsDropData(in);


        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        lbs.serialize(new LittleEndianOutputStream(baos));

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Examples of org.apache.poi.util.LittleEndianInputStream

    if (in instanceof LittleEndianInput) {
      // accessing directly is an optimisation
      _le = (LittleEndianInput) in;
    } else {
      // less optimal, but should work OK just the same. Often occurs in junit tests.
      _le = new LittleEndianInputStream(in);
    }
    _nextSid = readNextSid();
  }

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Examples of org.apache.poi.util.LittleEndianInputStream

       assertEquals(4, b[0]);
       assertEquals(0, b[1]);
       assertEquals(0x5c, b[2]);
       assertEquals(0x01, b[3]);
       
       LittleEndianInputStream inp = new LittleEndianInputStream(
             new ByteArrayInputStream(b)
       );
       fr = new FormatRun(inp);
       assertEquals(4, fr.getCharacterPos());
       assertEquals(0x15c, fr.getFontIndex());

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Examples of org.apache.poi.util.LittleEndianInputStream

       
       
       // Load in again and re-test
       byte[] data = new byte[14];
       System.arraycopy(b, 4, data, 0, data.length);
       LittleEndianInputStream inp = new LittleEndianInputStream(
             new ByteArrayInputStream(data)
       );
       ext = new ExtRst(inp, data.length);
       
       assertEquals(0, ext.getNumberOfRuns());

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Examples of org.apache.poi.util.LittleEndianInputStream

             00, 00, 00, 00, 
             00, 00 // Cruft at the end, as found from real files
       };
       assertEquals(16, data.length);
       
       LittleEndianInputStream inp = new LittleEndianInputStream(
             new ByteArrayInputStream(data)
       );
       ExtRst ext = new ExtRst(inp, data.length);
       assertEquals(0x0c, ext.getDataSize()); // Excludes 4 byte header

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