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/* Copyright (C) 2009 PrimeBase Technologies GmbH, Germany
*
* PrimeBase Media Stream for MySQL
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Barry Leslie
*
* 2009-01-09
*
* H&G2JCtL
*
* PBMS Meta Data utilities.
*
*/
#pragma once
#ifndef __METADATA_MS_H__
#define __METADATA_MS_H__
#ifdef DRIZZLED
#include <drizzled/internal/m_string.h>
#include <drizzled/charset.h>
#else
#include "m_ctype.h"
#endif
#include "pbmslib.h"
class MetaData
{
private:
char *data;
char *eod;
char *position;
public:
MetaData(): data(NULL), eod(NULL), position(NULL){}
MetaData(char *meta_data, size_t meta_data_size): data(meta_data), eod(meta_data + meta_data_size), position(meta_data){}
char *getBuffer() { return data;}
void use_data(char *meta_data, size_t meta_data_size)
{
data = meta_data;
position = data;
eod = data + meta_data_size;
}
void reset()
{
position = data;
}
char *findNext(char **value)
{
char *name = position;
if (position >= eod)
return NULL;
position += strlen(position) +1;
if (position >= eod)
return NULL;
*value = position;
position += strlen(position) +1;
return name;
}
char *findName(const char *name)
{
char *metadata = data;
while (metadata < eod && my_strcasecmp(&my_charset_utf8_general_ci, metadata, name)) {
metadata += strlen(metadata) +1;
metadata += strlen(metadata) +1;
}
if (metadata < eod)
return metadata + strlen(metadata) +1;
return NULL;
}
char *findNamePosition(const char *name)
{
char *metadata = data;
while (metadata < eod && my_strcasecmp(&my_charset_utf8_general_ci, metadata, name)) {
metadata += strlen(metadata) +1;
metadata += strlen(metadata) +1;
}
if (metadata < eod)
return metadata;
return NULL;
}
#ifdef HAVE_ALIAS_SUPPORT
char *findAlias() {return findName(MS_ALIAS_TAG);}
#endif
static uint32_t recSize(const char *rec)
{
uint32_t len = strlen(rec) + 1;
rec += len;
return (len + strlen(rec) + 1);
}
};
#endif //__METADATA_MS_H__
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