ChecksumIndexInput.h

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// Copyright (c) 2009-2014 Alan Wright. All rights reserved.
// Distributable under the terms of either the Apache License (Version 2.0)
// or the GNU Lesser General Public License.
 
#ifndef CHECKSUMINDEXINPUT_H
#define CHECKSUMINDEXINPUT_H
 
#include <boost/crc.hpp>
#include "IndexInput.h"
 
namespace Lucene {

class LPPAPI ChecksumIndexInput : public IndexInput {
public:
    ChecksumIndexInput(const IndexInputPtr& main);
    virtual ~ChecksumIndexInput();
 
    LUCENE_CLASS(ChecksumIndexInput);
 
protected:
    IndexInputPtr main;
    boost::crc_32_type checksum;
 
public:
    virtual uint8_t readByte();

    virtual void readBytes(uint8_t* b, int32_t offset, int32_t length);

    int64_t getChecksum();

    virtual void close();

    virtual int64_t getFilePointer();

    virtual void seek(int64_t pos);

    virtual int64_t length();

    virtual LuceneObjectPtr clone(const LuceneObjectPtr& other = LuceneObjectPtr());
};
 
}
 
#endif