Examples of com.ning.tr13.KeyValueReader

com.ning.tr13.lookup.VIntTrieLookup
Class that defines abstraction used for reading trie entries from a stream source (like file) that contains entries as textual entries
Currently customization can be done by sub-classing; should refactor to allow bit cleaner extensibility. @param < T> Type of values source provides @author tatu

    
    public static BytesTrieLookup readByteBufferBytesTrie(File f, ByteBufferAllocator a)
        throws IOException
    {
        FileInputStream fis = new FileInputStream(f);
        BytesTrieLookup trie = readByteBufferBytesTrie(fis, a);
        fis.close();
        return trie;
    }

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        return trie;
    }


    public static VIntTrieLookup readByteArrayVIntTrie(InputStream in) throws IOException
    {
        TrieHeader header = _readHeader(in, true);
        int len = (int) header.getPayloadLength();
        byte[] buffer = new byte[len];
        InputUtil.readFully(in, buffer, 0, len);
        return new ByteArrayVIntTrieLookup(buffer);
    }

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    }


    public static VIntTrieLookup readByteBufferVIntTrie(InputStream in, ByteBufferAllocator a)
        throws IOException
    {
        TrieHeader header = _readHeader(in, true);
        int len = (int) header.getPayloadLength();
        ByteBuffer bb = a.allocate(len);
        byte[] buffer = new byte[16000];
        while (len > 0) {
            int count = in.read(buffer, 0, Math.min(len, buffer.length));
            if (count < 0) {

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        return trie;
    }


    public static BytesTrieLookup readByteArrayBytesTrie(InputStream in) throws IOException
    {
        TrieHeader header = _readHeader(in, true);
        int len = (int) header.getPayloadLength();
        byte[] buffer = new byte[len];
        InputUtil.readFully(in, buffer, 0, len);
        return new ByteArrayBytesTrieLookup(buffer);
    }

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    }


    public static BytesTrieLookup readByteBufferBytesTrie(InputStream in, ByteBufferAllocator a)
        throws IOException
    {
        TrieHeader header = _readHeader(in, true);
        int len = (int) header.getPayloadLength();
        ByteBuffer bb = a.allocate(len);
        byte[] buffer = new byte[16000];
        while (len > 0) {
            int count = in.read(buffer, 0, Math.min(len, buffer.length));
            if (count < 0) {

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    protected static TrieHeader _readHeader(InputStream in, boolean twoGigMax) throws IOException
    {
        byte[] buffer = new byte[TrieHeader.HEADER_LENGTH];
        InputUtil.readFully(in, buffer, 0, TrieHeader.HEADER_LENGTH);   
        TrieHeader h = TrieHeader.read(buffer, 0);
        if (twoGigMax) {
            if (h.getPayloadLength() > Integer.MAX_VALUE) {
                throw new IllegalArgumentException("Trie over 2 gigs in size: max size 2 gigs");
            }
        }
        return h;
    }

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    {
        // header:
        byte[] buffer = new byte[TrieHeader.HEADER_LENGTH];
        InputUtil.readFully(in, buffer);
        // First: let's verify signature, header
        TrieHeader header = TrieHeader.read(buffer, 0);
        long len = header.getPayloadLength();
        if (len > Integer.MAX_VALUE) {
            throw new IOException("Too big input file (over 2 gigs)");
        }
        byte[] payload = new byte[(int) len];
        InputUtil.readFully(in, payload);

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     */


    public static VIntTrieLookup readByteArrayVIntTrie(File f) throws IOException
    {
        FileInputStream fis = new FileInputStream(f);
        VIntTrieLookup trie = readByteArrayVIntTrie(fis);
        fis.close();
        return trie;
    }

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    public static VIntTrieLookup readByteBufferVIntTrie(File f, ByteBufferAllocator a)
        throws IOException
    {
        FileInputStream fis = new FileInputStream(f);
        VIntTrieLookup trie = readByteBufferVIntTrie(fis, a);
        fis.close();
        return trie;
    }

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Related Classes of com.ning.tr13.KeyValueReader

com.ning.tr13.impl.bytes.ByteArrayBytesTrieLookup

com.ning.tr13.impl.bytes.ByteBufferBytesTrieLookup

com.ning.tr13.impl.bytes.SimpleBytesTrieBuilder

com.ning.tr13.impl.vint.ByteArrayVIntTrieLookup

com.ning.tr13.impl.vint.ByteBufferVIntTrieLookup

com.ning.tr13.impl.vint.SimpleVIntTrieBuilder

com.ning.tr13.lookup.BytesTrieLookup

com.ning.tr13.lookup.TrieHeader

com.ning.tr13.lookup.VIntTrieLookup

com.ning.tr13.read.BytesTrieLookupTest

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