BytesOutputStream.h

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#ifndef __DCL_BYTES_OUTPUT_STREAM_H__
#define __DCL_BYTES_OUTPUT_STREAM_H__       20110221
 
#ifndef __DCL_OUTPUT_STRAEM_H__
#include <dcl/OutputStream.h>
#endif
#ifndef __DCL_STRING_H__
#include <dcl/String.h>
#endif
 
__DCL_BEGIN_NAMESPACE

class DCLCAPI BytesOutputStream : public OutputStream
{
    DECLARE_CLASSINFO(BytesOutputStream)
public:
    ByteString toByteString() const;

    BytesOutputStream(size_t _initial = 4096);

    virtual ~BytesOutputStream();

    virtual void close()
            __DCL_THROWS1(IOException*);

    virtual OutputStream& write(const void* _buf, size_t _n)
            __DCL_THROWS1(IOException*);

    virtual size_t writeTo(OutputStream& _output) const
            __DCL_THROWS1(IOException*);

    virtual int vprintf(const char* _format, va_list _arglist)
        __DCL_THROWS1(IOException*);

    virtual size_t flushTo(OutputStream& _output)
            __DCL_THROWS1(IOException*);

    virtual void reset();

    const void* data() const;

    size_t size() const;
 
protected:
    ByteBuffer*     __buf;
    size_t          __capacity;
};
 
inline const void* BytesOutputStream::data() const
{
    return __buf != NULL ? __buf->data() : NULL;
}
 
inline size_t BytesOutputStream::size() const
{
    return __buf != NULL ? __buf->__dataLength : 0;
}
 
__DCL_END_NAMESPACE
 
#endif      // __DCL_BYTES_OUTPUT_STREAM_H__