Example usage for org.apache.lucene.store DataInput readString

Introduction

In this page you can find the example usage for org.apache.lucene.store DataInput readString.

Prototype

public String readString() throws IOException 

Source Link

Document

Reads a string.

Usage

From source file:com.browseengine.bobo.geosearch.impl.MappedFieldNameFilterConverter.java

License:Apache License

@Override
public void loadFromInput(DataInput input) throws IOException {
    int version = input.readVInt(); //read version

    int mapSize = input.readVInt();
    bitmasks = new HashMap<String, Byte>(mapSize);
    for (int i = 0; i < mapSize; i++) {
        String fieldName = input.readString();
        Byte filterByte = input.readByte();

        bitmasks.put(fieldName, filterByte);
    }/*  w ww. j ava2 s  . c  om*/
}

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From source file:com.github.cstoku.neologd.unidic.lucene.analysis.ja.dict.BinaryDictionary.java

License:Apache License

protected BinaryDictionary() throws IOException {
    InputStream mapIS = null, dictIS = null, posIS = null;
    int[] targetMapOffsets = null, targetMap = null;
    String[] posDict = null;/*from   www  . j ava  2s . co m*/
    String[] inflFormDict = null;
    String[] inflTypeDict = null;
    ByteBuffer buffer = null;
    boolean success = false;
    try {
        mapIS = getResource(TARGETMAP_FILENAME_SUFFIX);
        mapIS = new BufferedInputStream(mapIS);
        DataInput in = new InputStreamDataInput(mapIS);
        CodecUtil.checkHeader(in, TARGETMAP_HEADER, VERSION, VERSION);
        targetMap = new int[in.readVInt()];
        targetMapOffsets = new int[in.readVInt()];
        int accum = 0, sourceId = 0;
        for (int ofs = 0; ofs < targetMap.length; ofs++) {
            final int val = in.readVInt();
            if ((val & 0x01) != 0) {
                targetMapOffsets[sourceId] = ofs;
                sourceId++;
            }
            accum += val >>> 1;
            targetMap[ofs] = accum;
        }
        if (sourceId + 1 != targetMapOffsets.length)
            throw new IOException("targetMap file format broken");
        targetMapOffsets[sourceId] = targetMap.length;
        mapIS.close();
        mapIS = null;

        posIS = getResource(POSDICT_FILENAME_SUFFIX);
        posIS = new BufferedInputStream(posIS);
        in = new InputStreamDataInput(posIS);
        CodecUtil.checkHeader(in, POSDICT_HEADER, VERSION, VERSION);
        int posSize = in.readVInt();
        posDict = new String[posSize];
        inflTypeDict = new String[posSize];
        inflFormDict = new String[posSize];
        for (int j = 0; j < posSize; j++) {
            posDict[j] = in.readString();
            inflTypeDict[j] = in.readString();
            inflFormDict[j] = in.readString();
            // this is how we encode null inflections
            if (inflTypeDict[j].length() == 0) {
                inflTypeDict[j] = null;
            }
            if (inflFormDict[j].length() == 0) {
                inflFormDict[j] = null;
            }
        }
        posIS.close();
        posIS = null;

        dictIS = getResource(DICT_FILENAME_SUFFIX);
        // no buffering here, as we load in one large buffer
        in = new InputStreamDataInput(dictIS);
        CodecUtil.checkHeader(in, DICT_HEADER, VERSION, VERSION);
        final int size = in.readVInt();
        final ByteBuffer tmpBuffer = ByteBuffer.allocateDirect(size);
        final ReadableByteChannel channel = Channels.newChannel(dictIS);
        final int read = channel.read(tmpBuffer);
        if (read != size) {
            throw new EOFException("Cannot read whole dictionary");
        }
        dictIS.close();
        dictIS = null;
        buffer = tmpBuffer.asReadOnlyBuffer();
        success = true;
    } finally {
        if (success) {
            IOUtils.close(mapIS, posIS, dictIS);
        } else {
            IOUtils.closeWhileHandlingException(mapIS, posIS, dictIS);
        }
    }

    this.targetMap = targetMap;
    this.targetMapOffsets = targetMapOffsets;
    this.posDict = posDict;
    this.inflTypeDict = inflTypeDict;
    this.inflFormDict = inflFormDict;
    this.buffer = buffer;
}

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