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/* Copyright (C) 2000-2006 MySQL AB
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; version 2 of the License.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include "config.h"
#include <drizzled/error.h>
#include <drizzled/session.h>
#include <drizzled/unireg.h>
#include "drizzled/sql_table.h"
#include "drizzled/global_charset_info.h"
#include "drizzled/message/statement_transform.h"
#include "drizzled/internal/my_sys.h"
/* For proto */
#include <string>
#include <fstream>
#include <fcntl.h>
#include <drizzled/message/schema.pb.h>
#include <drizzled/message/table.pb.h>
#include <google/protobuf/io/zero_copy_stream.h>
#include <google/protobuf/io/zero_copy_stream_impl.h>
#include <drizzled/table_proto.h>
using namespace std;
namespace drizzled {
static int fill_table_proto(message::Table &table_proto,
const std::string &table_name,
List<CreateField> &create_fields,
HA_CREATE_INFO *create_info,
uint32_t keys,
KEY *key_info)
{
CreateField *field_arg;
List_iterator<CreateField> it(create_fields);
message::Table::TableOptions *table_options= table_proto.mutable_options();
if (create_fields.elements > MAX_FIELDS)
{
my_error(ER_TOO_MANY_FIELDS, MYF(0), ER(ER_TOO_MANY_FIELDS));
return(1);
}
assert(strcmp(table_proto.engine().name().c_str(),
create_info->db_type->getName().c_str())==0);
assert(table_proto.name() == table_name);
int field_number= 0;
bool use_existing_fields= table_proto.field_size() > 0;
while ((field_arg= it++))
{
message::Table::Field *attribute;
/* some (one) code path for CREATE TABLE fills the proto
out more than the others, so we already have partially
filled out Field messages */
if (use_existing_fields)
attribute= table_proto.mutable_field(field_number++);
else
{
/* Other code paths still have to fill out the proto */
attribute= table_proto.add_field();
if (field_arg->flags & NOT_NULL_FLAG)
{
message::Table::Field::FieldConstraints *constraints;
constraints= attribute->mutable_constraints();
constraints->set_is_nullable(false);
}
attribute->set_name(field_arg->field_name);
}
assert((!(field_arg->flags & NOT_NULL_FLAG)) == attribute->constraints().is_nullable());
assert(strcmp(attribute->name().c_str(), field_arg->field_name)==0);
message::Table::Field::FieldType parser_type= attribute->type();
attribute->set_type(message::internalFieldTypeToFieldProtoType(field_arg->sql_type));
switch (attribute->type()) {
default: /* Only deal with types that need extra information */
break;
case message::Table::Field::DOUBLE:
{
/*
* For DOUBLE, we only add a specific scale and precision iff
* the fixed decimal point has been specified...
*/
if (field_arg->decimals != NOT_FIXED_DEC)
{
message::Table::Field::NumericFieldOptions *numeric_field_options;
numeric_field_options= attribute->mutable_numeric_options();
numeric_field_options->set_precision(field_arg->length);
numeric_field_options->set_scale(field_arg->decimals);
}
}
break;
case message::Table::Field::VARCHAR:
{
message::Table::Field::StringFieldOptions *string_field_options;
string_field_options= attribute->mutable_string_options();
if (! use_existing_fields || string_field_options->length()==0)
string_field_options->set_length(field_arg->length
/ field_arg->charset->mbmaxlen);
else
assert((uint32_t)string_field_options->length() == (uint32_t)(field_arg->length / field_arg->charset->mbmaxlen));
if (! string_field_options->has_collation())
{
string_field_options->set_collation_id(field_arg->charset->number);
string_field_options->set_collation(field_arg->charset->name);
}
break;
}
case message::Table::Field::DECIMAL:
{
message::Table::Field::NumericFieldOptions *numeric_field_options;
numeric_field_options= attribute->mutable_numeric_options();
/* This is magic, I hate magic numbers -Brian */
numeric_field_options->set_precision(field_arg->length + ( field_arg->decimals ? -2 : -1));
numeric_field_options->set_scale(field_arg->decimals);
break;
}
case message::Table::Field::ENUM:
{
message::Table::Field::EnumerationValues *enumeration_options;
assert(field_arg->interval);
enumeration_options= attribute->mutable_enumeration_values();
for (uint32_t pos= 0; pos < field_arg->interval->count; pos++)
{
const char *src= field_arg->interval->type_names[pos];
enumeration_options->add_field_value(src);
}
enumeration_options->set_collation_id(field_arg->charset->number);
enumeration_options->set_collation(field_arg->charset->name);
break;
}
case message::Table::Field::BLOB:
{
message::Table::Field::StringFieldOptions *string_field_options;
string_field_options= attribute->mutable_string_options();
string_field_options->set_collation_id(field_arg->charset->number);
string_field_options->set_collation(field_arg->charset->name);
}
break;
}
assert (!use_existing_fields || parser_type == attribute->type());
#ifdef NOTDONE
field_constraints= attribute->mutable_constraints();
constraints->set_is_nullable(field_arg->def->null_value);
#endif
switch(field_arg->column_format())
{
case COLUMN_FORMAT_TYPE_NOT_USED:
break;
case COLUMN_FORMAT_TYPE_DEFAULT:
attribute->set_format(message::Table::Field::DefaultFormat);
break;
case COLUMN_FORMAT_TYPE_FIXED:
attribute->set_format(message::Table::Field::FixedFormat);
break;
case COLUMN_FORMAT_TYPE_DYNAMIC:
attribute->set_format(message::Table::Field::DynamicFormat);
break;
default:
assert(0); /* Tell us, since this shouldn't happend */
}
if (field_arg->comment.length)
{
uint32_t tmp_len;
tmp_len= system_charset_info->cset->charpos(system_charset_info,
field_arg->comment.str,
field_arg->comment.str +
field_arg->comment.length,
COLUMN_COMMENT_MAXLEN);
if (tmp_len < field_arg->comment.length)
{
my_error(ER_WRONG_STRING_LENGTH, MYF(0),
field_arg->comment.str,"COLUMN COMMENT",
(uint32_t) COLUMN_COMMENT_MAXLEN);
return(1);
}
if (! use_existing_fields)
attribute->set_comment(field_arg->comment.str);
assert(strcmp(attribute->comment().c_str(), field_arg->comment.str)==0);
}
if (field_arg->unireg_check == Field::NEXT_NUMBER)
{
message::Table::Field::NumericFieldOptions *field_options;
field_options= attribute->mutable_numeric_options();
field_options->set_is_autoincrement(true);
}
if (field_arg->unireg_check == Field::TIMESTAMP_DN_FIELD
|| field_arg->unireg_check == Field::TIMESTAMP_DNUN_FIELD)
{
message::Table::Field::FieldOptions *field_options;
field_options= attribute->mutable_options();
field_options->set_default_value("NOW()");
}
if (field_arg->unireg_check == Field::TIMESTAMP_UN_FIELD
|| field_arg->unireg_check == Field::TIMESTAMP_DNUN_FIELD)
{
message::Table::Field::FieldOptions *field_options;
field_options= attribute->mutable_options();
field_options->set_update_value("NOW()");
}
if (field_arg->def == NULL && attribute->constraints().is_nullable())
{
message::Table::Field::FieldOptions *field_options;
field_options= attribute->mutable_options();
field_options->set_default_null(true);
}
if (field_arg->def)
{
message::Table::Field::FieldOptions *field_options;
field_options= attribute->mutable_options();
if (field_arg->def->is_null())
{
field_options->set_default_null(true);
}
else
{
String d;
String *default_value= field_arg->def->val_str(&d);
assert(default_value);
if ((field_arg->sql_type==DRIZZLE_TYPE_VARCHAR
|| field_arg->sql_type==DRIZZLE_TYPE_BLOB)
&& ((field_arg->length / field_arg->charset->mbmaxlen)
< default_value->length()))
{
my_error(ER_INVALID_DEFAULT, MYF(0), field_arg->field_name);
return 1;
}
if ((field_arg->sql_type==DRIZZLE_TYPE_VARCHAR
&& field_arg->charset==&my_charset_bin)
|| (field_arg->sql_type==DRIZZLE_TYPE_BLOB
&& field_arg->charset==&my_charset_bin))
{
string bin_default;
bin_default.assign(default_value->c_ptr(),
default_value->length());
field_options->set_default_bin_value(bin_default);
}
else
{
field_options->set_default_value(default_value->c_ptr());
}
}
}
assert(field_arg->unireg_check == Field::NONE
|| field_arg->unireg_check == Field::NEXT_NUMBER
|| field_arg->unireg_check == Field::TIMESTAMP_DN_FIELD
|| field_arg->unireg_check == Field::TIMESTAMP_UN_FIELD
|| field_arg->unireg_check == Field::TIMESTAMP_DNUN_FIELD);
}
assert(! use_existing_fields || (field_number == table_proto.field_size()));
if (create_info->table_options & HA_OPTION_PACK_RECORD)
table_options->set_pack_record(true);
if (table_options->has_comment())
{
uint32_t tmp_len;
tmp_len= system_charset_info->cset->charpos(system_charset_info,
table_options->comment().c_str(),
table_options->comment().c_str() +
table_options->comment().length(),
TABLE_COMMENT_MAXLEN);
if (tmp_len < table_options->comment().length())
{
my_error(ER_WRONG_STRING_LENGTH, MYF(0),
table_options->comment().c_str(),"Table COMMENT",
(uint32_t) TABLE_COMMENT_MAXLEN);
return(1);
}
}
if (create_info->default_table_charset)
{
table_options->set_collation_id(
create_info->default_table_charset->number);
table_options->set_collation(create_info->default_table_charset->name);
}
if (create_info->auto_increment_value)
table_options->set_auto_increment_value(create_info->auto_increment_value);
for (uint32_t i= 0; i < keys; i++)
{
message::Table::Index *idx;
idx= table_proto.add_indexes();
assert(test(key_info[i].flags & HA_USES_COMMENT) ==
(key_info[i].comment.length > 0));
idx->set_name(key_info[i].name);
idx->set_key_length(key_info[i].key_length);
if (is_primary_key_name(key_info[i].name))
idx->set_is_primary(true);
else
idx->set_is_primary(false);
switch(key_info[i].algorithm)
{
case HA_KEY_ALG_HASH:
idx->set_type(message::Table::Index::HASH);
break;
case HA_KEY_ALG_BTREE:
idx->set_type(message::Table::Index::BTREE);
break;
case HA_KEY_ALG_UNDEF:
idx->set_type(message::Table::Index::UNKNOWN_INDEX);
break;
default:
abort(); /* Somebody's brain broke. haven't added index type to proto */
}
if (key_info[i].flags & HA_NOSAME)
idx->set_is_unique(true);
else
idx->set_is_unique(false);
message::Table::Index::IndexOptions *index_options= idx->mutable_options();
if (key_info[i].flags & HA_USES_BLOCK_SIZE)
index_options->set_key_block_size(key_info[i].block_size);
if (key_info[i].flags & HA_PACK_KEY)
index_options->set_pack_key(true);
if (key_info[i].flags & HA_BINARY_PACK_KEY)
index_options->set_binary_pack_key(true);
if (key_info[i].flags & HA_VAR_LENGTH_PART)
index_options->set_var_length_key(true);
if (key_info[i].flags & HA_NULL_PART_KEY)
index_options->set_null_part_key(true);
if (key_info[i].flags & HA_KEY_HAS_PART_KEY_SEG)
index_options->set_has_partial_segments(true);
if (key_info[i].flags & HA_GENERATED_KEY)
index_options->set_auto_generated_key(true);
if (key_info[i].flags & HA_USES_COMMENT)
{
uint32_t tmp_len;
tmp_len= system_charset_info->cset->charpos(system_charset_info,
key_info[i].comment.str,
key_info[i].comment.str +
key_info[i].comment.length,
TABLE_COMMENT_MAXLEN);
if (tmp_len < key_info[i].comment.length)
{
my_error(ER_WRONG_STRING_LENGTH, MYF(0),
key_info[i].comment.str,"Index COMMENT",
(uint32_t) TABLE_COMMENT_MAXLEN);
return(1);
}
idx->set_comment(key_info[i].comment.str);
}
if (key_info[i].flags &
~(HA_NOSAME | HA_PACK_KEY | HA_USES_BLOCK_SIZE |
HA_BINARY_PACK_KEY | HA_VAR_LENGTH_PART | HA_NULL_PART_KEY |
HA_KEY_HAS_PART_KEY_SEG | HA_GENERATED_KEY | HA_USES_COMMENT))
abort(); // Invalid (unknown) index flag.
for(unsigned int j=0; j< key_info[i].key_parts; j++)
{
message::Table::Index::IndexPart *idxpart;
idxpart= idx->add_index_part();
idxpart->set_fieldnr(key_info[i].key_part[j].fieldnr);
idxpart->set_compare_length(key_info[i].key_part[j].length);
idxpart->set_key_type(key_info[i].key_part[j].key_type);
}
}
return 0;
}
/*
Create a table definition proto file and the tables
SYNOPSIS
rea_create_table()
session Thread handler
path Name of file (including database, without .frm)
db Data base name
table_name Table name
create_info create info parameters
create_fields Fields to create
keys number of keys to create
key_info Keys to create
RETURN
0 ok
1 error
*/
bool rea_create_table(Session *session,
TableIdentifier &identifier,
message::Table &table_proto,
HA_CREATE_INFO *create_info,
List<CreateField> &create_fields,
uint32_t keys, KEY *key_info)
{
if (fill_table_proto(table_proto, identifier.getTableName(), create_fields, create_info,
keys, key_info))
return false;
if (plugin::StorageEngine::createTable(*session,
identifier,
false, table_proto))
{
return false;
}
return true;
} /* rea_create_table */
} /* namespace drizzled */
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