substreamprovider.h

lucene in java大家一定听说过了

/*------------------------------------------------------------------------------
* Copyright (C) 2003-2006 Jos van den Oever
* 
* Distributable under the terms of either the Apache License (Version 2.0) or 
* the GNU Lesser General Public License, as specified in the COPYING file.
------------------------------------------------------------------------------*/
#ifndef SUBSTREAMPROVIDER
#define SUBSTREAMPROVIDER

#include <string>
#include "streambase.h"

namespace jstreams {

struct EntryInfo {
    std::string filename;
    int32_t size;
    uint mtime;
    enum Type {Dir, File};
    Type type;
};

class SubStreamProvider {
protected:
    StreamStatus status;
    std::string error;
    StreamBase<char> *input;
    EntryInfo entryinfo;
public:
    SubStreamProvider(StreamBase<char> *i) :status(Ok), input(i) {}
    virtual ~SubStreamProvider() {}
    StreamStatus getStatus() const { return status; }
    virtual StreamBase<char>* nextEntry() = 0;
    const EntryInfo &getEntryInfo() const {
        return entryinfo;
    }
//    std::string getEntryFileName() const { return entryfilename; }
    const char* getError() const { return error.c_str(); }
};

} // end namespace jstreams

#endif