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/*
Copyright (C) 2010 Stewart Smith
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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <drizzled/plugin/function.h>
#include <drizzled/item/func.h>
#include "drizzled/charset.h"
#include <drizzled/function/str/strfunc.h>
#include "haildb_datadict_dump_func.h"
#if defined(HAVE_HAILDB_H)
# include <haildb.h>
#else
# include <embedded_innodb-1.0/innodb.h>
#endif /* HAVE_HAILDB_H */
#include <sstream>
#include <string>
using namespace std;
using namespace drizzled;
class HailDBDatadictDumpFunction : public Item_str_func
{
public:
HailDBDatadictDumpFunction() : Item_str_func() {}
String *val_str(String*);
void fix_length_and_dec()
{
max_length= 32767;
}
const char *func_name() const
{
return "haildb_datadict_dump";
}
bool check_argument_count(int n)
{
return (n == 0);
}
};
struct schema_visitor_arg
{
ib_trx_t transaction;
string *str;
};
extern "C"
{
static int visit_table(void* arg_param, const char* name, ib_tbl_fmt_t tbl_fmt,
ib_ulint_t page_size, int n_cols, int n_indexes)
{
struct schema_visitor_arg *arg= (struct schema_visitor_arg*)arg_param;
std::stringstream ss;
ss << name << " Format: ";
switch (tbl_fmt)
{
case IB_TBL_REDUNDANT:
ss << "REDUNDANT ";
break;
case IB_TBL_COMPACT:
ss << "COMPACT ";
break;
case IB_TBL_DYNAMIC:
ss << "DYNAMIC ";
break;
case IB_TBL_COMPRESSED:
ss << "COMPRESSED ";
break;
default:
ss << "UNKNOWN(" << tbl_fmt << ") ";
}
ss << "Page size: " << page_size
<< " Columns: " << n_cols
<< " Indexes: " << n_indexes
<< endl;
arg->str->append(ss.str());
return 0;
}
static int visit_table_col(void *arg_param, const char* name, ib_col_type_t, ib_ulint_t, ib_col_attr_t)
{
struct schema_visitor_arg *arg= (struct schema_visitor_arg*)arg_param;
std::stringstream ss;
ss << " COL: " << name << endl;
arg->str->append(ss.str());
return 0;
}
static int visit_index(void *arg_param, const char* name, ib_bool_t, ib_bool_t, int)
{
struct schema_visitor_arg *arg= (struct schema_visitor_arg*)arg_param;
std::stringstream ss;
ss << " IDX: " << name << endl;
arg->str->append(ss.str());
return 0;
}
static int visit_index_col(void* arg_param, const char* name, ib_ulint_t)
{
struct schema_visitor_arg *arg= (struct schema_visitor_arg*)arg_param;
std::stringstream ss;
ss << " IDXCOL: " << name << endl;
arg->str->append(ss.str());
return 0;
}
}
static const ib_schema_visitor_t visitor = {
IB_SCHEMA_VISITOR_TABLE_AND_INDEX_COL,
visit_table,
visit_table_col,
visit_index,
visit_index_col
};
extern "C"
{
static int visit_tables(void* arg_param, const char *name, int len)
{
ib_err_t err;
struct schema_visitor_arg *arg = (struct schema_visitor_arg*) arg_param;
string table_name(name, len);
err= ib_table_schema_visit(arg->transaction, table_name.c_str(), &visitor, arg_param);
return(err == DB_SUCCESS ? 0 : -1);
}
}
String *HailDBDatadictDumpFunction::val_str(String *str)
{
assert(fixed == true);
if (str->alloc(50))
{
null_value= true;
return 0;
}
null_value= false;
string dict_dump("HailDB Data Dictionary Contents\n"
"-------------------------------\n");
struct schema_visitor_arg arg;
arg.str= &dict_dump;
arg.transaction= ib_trx_begin(IB_TRX_REPEATABLE_READ);
ib_err_t err= ib_schema_lock_exclusive(arg.transaction);
err = ib_schema_tables_iterate(arg.transaction, visit_tables, &arg);
str->alloc(dict_dump.length());
str->length(dict_dump.length());
strncpy(str->ptr(), dict_dump.c_str(), dict_dump.length());
ib_schema_unlock(arg.transaction);
err= ib_trx_rollback(arg.transaction);
assert (err == DB_SUCCESS);
return str;
}
plugin::Create_function<HailDBDatadictDumpFunction> *haildb_datadict_dump_func= NULL;
int haildb_datadict_dump_func_initialize(module::Context &context)
{
haildb_datadict_dump_func= new plugin::Create_function<HailDBDatadictDumpFunction>("haildb_datadict_dump");
context.add(haildb_datadict_dump_func);
return 0;
}
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