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/*
* Copyright (c) 2009, 2014, Oracle and/or its affiliates. All rights reserved.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#include "db_alter_script_be.h"
#include "grtdb/db_object_helpers.h"
#include "grts/structs.h"
#include "grts/structs.db.mgmt.h"
#include "grts/structs.db.mysql.h"
#include "grts/structs.workbench.h"
#include "grtpp.h"
using namespace grt;
#include "diff/diffchange.h"
#include "grtdb/diff_dbobjectmatch.h"
#include "grtsqlparser/sql_facade.h"
#include "grtsqlparser/sql_schema_rename.h"
#include "interfaces/sqlgenerator.h"
#include "db_mysql_public_interface.h"
#include "db.mysql/src/module_db_mysql_shared_code.h"
#include "grtdb/charset_utils.h"
#include "grtdb/db_object_helpers.h"
#include "db_mysql_sql_export.h"
#include "diff_tree.h"
#include "base/log.h"
DEFAULT_LOG_DOMAIN("alter_script_be");
DbMySQLDiffAlter::DbMySQLDiffAlter(bec::GRTManager *m)
: manager_(m),_alter_list(manager_->get_grt()), _alter_object_list(manager_->get_grt())
{}
DbMySQLDiffAlter::~DbMySQLDiffAlter()
{}
std::string DbMySQLDiffAlter::generate_alter()
{
SQLGeneratorInterfaceImpl *diffsql_module=
dynamic_cast<SQLGeneratorInterfaceImpl*>(manager_->get_grt()->get_module("DbMySQL"));
if (diffsql_module == NULL)
throw std::runtime_error("Could not find module DbMySQL");
std::vector<grt::ValueRef> vec;
_diff_tree->get_object_list_for_script(vec);
std::vector<std::string> schemata;
std::vector<std::string> tables;
std::vector<std::string> triggers;
std::vector<std::string> views;
std::vector<std::string> routines;
for(std::vector<grt::ValueRef>::const_iterator e= vec.end(), it= vec.begin(); it != e; it++)
{
grt::ValueRef v= *it;
if(!GrtNamedObjectRef::can_wrap(v))
continue;
std::string name(get_old_object_name_for_key(GrtNamedObjectRef::cast_from(v), get_db_options().get_int("CaseSensitive") != 0));
if(db_mysql_SchemaRef::can_wrap(v))
{
db_mysql_SchemaRef schema= db_mysql_SchemaRef::cast_from(v);
//name.append(get_old_name_or_name(schema));
schemata.push_back(name);
}
else if(db_mysql_TableRef::can_wrap(v))
{
db_mysql_TableRef table= db_mysql_TableRef::cast_from(v);
//name.append(get_old_name_or_name(GrtNamedObjectRef::cast_from(table->owner()))).append(".").append(get_old_name_or_name(table));
tables.push_back(name);
}
else if(db_mysql_ViewRef::can_wrap(v))
{
db_mysql_ViewRef view= db_mysql_ViewRef::cast_from(v);
//name.append(get_old_name_or_name(GrtNamedObjectRef::cast_from(view->owner()))).append(".").append(get_old_name_or_name(view));
views.push_back(name);
}
else if(db_mysql_RoutineRef::can_wrap(v))
{
db_mysql_RoutineRef routine= db_mysql_RoutineRef::cast_from(v);
//name.append(get_old_name_or_name(GrtNamedObjectRef::cast_from(routine->owner()))).append(".").append(get_old_name_or_name(routine));
routines.push_back(name);
}
else if(db_mysql_TriggerRef::can_wrap(v))
{
db_mysql_TriggerRef trigger= db_mysql_TriggerRef::cast_from(v);
//name.append(get_old_name_or_name(GrtNamedObjectRef::cast_from(trigger->owner()->owner()))).append(".").append(get_old_name_or_name(trigger));
triggers.push_back(name);
}
}
grt::DictRef options(manager_->get_grt());
options.set("SchemaFilterList", convert_string_vector_to_grt_list(manager_->get_grt(), schemata));
options.set("TableFilterList", convert_string_vector_to_grt_list(manager_->get_grt(), tables));
options.set("ViewFilterList", convert_string_vector_to_grt_list(manager_->get_grt(), views));
options.set("RoutineFilterList", convert_string_vector_to_grt_list(manager_->get_grt(), routines));
options.set("TriggerFilterList", convert_string_vector_to_grt_list(manager_->get_grt(), triggers));
options.set("KeepOrder", grt::IntegerRef(1));
options.set("DBSettings", get_db_options());
// enable this once the ALTER script generation code is able to properly generate USE statements
//options.set("UseShortNames", grt::IntegerRef(1));
grt::StringListRef alter_list(manager_->get_grt());
grt::ListRef<GrtNamedObject> alter_object_list(manager_->get_grt());
options.set("OutputContainer", alter_list);
options.set("OutputObjectContainer", alter_object_list);
if(_alter_change)
{
diffsql_module->generateSQL(_left_cat_copy, options, _alter_change);
}
ssize_t res= diffsql_module->makeSQLSyncScript(_left_cat_copy, options, alter_list, alter_object_list);
if (res != 0)
return "";
grt::StringRef script= grt::StringRef::cast_from(options.get("OutputScript"));
return *script;
};
boost::shared_ptr<DiffTreeBE> DbMySQLDiffAlter::init_diff_tree(const std::vector<std::string>& schemata,
const grt::ValueRef &left, const grt::ValueRef &right,
grt::StringListRef SchemaSkipList, grt::DictRef options)
{
db_mgmt_RdbmsRef rdbms= db_mgmt_RdbmsRef::cast_from(manager_->get_grt()->get("/wb/rdbmsMgmt/rdbms/0"));
std::string default_engine_name;
grt::ValueRef default_engine = manager_->get_app_option("db.mysql.Table:tableEngine");
if(grt::StringRef::can_wrap(default_engine))
default_engine_name = grt::StringRef::cast_from(default_engine);
std::string err;
db_mysql_CatalogRef right_cat_copy;
_left_catalog= db_mysql_CatalogRef::cast_from(left);
_left_cat_copy= db_mysql_CatalogRef::cast_from(grt::copy_object(_left_catalog));
bec::apply_user_datatypes(_left_cat_copy, rdbms);
bec::CatalogHelper::apply_defaults(_left_cat_copy, default_engine_name);
CatalogMap left_catalog_map;
build_catalog_map(_left_cat_copy, left_catalog_map);
update_all_old_names(_left_cat_copy, true, left_catalog_map);
_right_catalog= db_mysql_CatalogRef::cast_from(right);
right_cat_copy= db_mysql_CatalogRef::cast_from(grt::copy_object(_right_catalog));
bec::apply_user_datatypes(right_cat_copy, rdbms);
bec::CatalogHelper::apply_defaults(right_cat_copy, default_engine_name);
CatalogMap right_catalog_map;
build_catalog_map(right_cat_copy, right_catalog_map);
update_all_old_names(right_cat_copy, true, right_catalog_map);
{
SqlFacade* parser = SqlFacade::instance_for_rdbms_name(_left_cat_copy.get_grt(), "Mysql");
// if the target schema does not have the same name as the original, make sure that the
// target objects have references to the old schema name fixed in all code objects (triggers, views, SPs, functions)
for (unsigned int i= 0; i < _left_cat_copy->schemata().count(); i++)
{
db_SchemaRef schema(_left_cat_copy->schemata()[i]);
std::string orig_schema_name = schema->customData().get_string("db.mysql.synchronize:originalName", "");
if (!orig_schema_name.empty() && schema->name() != orig_schema_name)
{
log_info("Fix schema references of %s (from %s)\n", schema->name().c_str(), orig_schema_name.c_str());
Sql_schema_rename::Ref renamer = parser->sqlSchemaRenamer();
renamer->rename_schema_references(_left_cat_copy, orig_schema_name, schema->name());
}
}
}
for (size_t i= 0; i < _left_cat_copy->schemata().count(); i++)
{
db_SchemaRef schema(_left_cat_copy->schemata()[i]);
// remove excluded object types from the copy of the left catalog
if (options.get_int("SkipTriggers"))
{
log_info("Remove triggers from copy of model schema %s\n", schema->name().c_str());
for (size_t t = 0; t < schema->tables().count(); t++)
{
schema->tables()[t]->triggers().remove_all();
}
}
if (options.get_int("SkipRoutines"))
{
log_info("Remove routines from copy of model schema %s\n", schema->name().c_str());
schema->routines().remove_all();
schema->routineGroups().remove_all();
}
}
for (size_t i= 0; i < right_cat_copy->schemata().count(); i++)
{
db_SchemaRef schema(right_cat_copy->schemata()[i]);
// remove excluded object types from the copy of the right catalog
if (options.get_int("SkipTriggers"))
{
log_info("Remove triggers from copy of model schema %s\n", schema->name().c_str());
for (size_t t = 0; t < schema->tables().count(); t++)
{
schema->tables()[t]->triggers().remove_all();
}
}
if (options.get_int("SkipRoutines"))
{
log_info("Remove routines from copy of model schema %s\n", schema->name().c_str());
schema->routines().remove_all();
schema->routineGroups().remove_all();
}
}
// 2. diff with model
grt::DbObjectMatchAlterOmf omf;
omf.dontdiff_mask = 3;
grt::NormalizedComparer comparer(manager_->get_grt(),get_db_options());
comparer.init_omf(&omf);
_alter_change= diff_make(right_cat_copy, _left_cat_copy, &omf);
SQLGeneratorInterfaceImpl *diffsql_module= dynamic_cast<SQLGeneratorInterfaceImpl*>(manager_->get_grt()->get_module("DbMySQL"));
if (diffsql_module == NULL)
throw DbMySQLDiffAlterException("error loading module DbMySQL");
grt::DictRef genoptions(manager_->get_grt());
genoptions.set("DBSettings", get_db_options());
genoptions.set("OutputContainer", _alter_list);
genoptions.set("OutputObjectContainer", _alter_object_list);
genoptions.set("UseFilteredLists", grt::IntegerRef(0));
if (_alter_change && diffsql_module)
{
diffsql_module->generateSQL(_right_catalog, genoptions, _alter_change);
}
// 3. build the tree
std::map<DiffNode::ApplicationDirection,DiffNode::ApplicationDirection> apply_directions_map;
apply_directions_map[DiffNode::ApplyToDb] = DiffNode::DontApply;
apply_directions_map[DiffNode::DontApply] = DiffNode::ApplyToDb;
return _diff_tree = boost::shared_ptr<DiffTreeBE>(new ::DiffTreeBE(schemata, _left_cat_copy, right_cat_copy, _alter_change, apply_directions_map));
}
std::string DbMySQLDiffAlter::get_col_name(const size_t col_id)
{
switch(col_id)
{
case 0:
return "Source";
break;
case 1:
return "Update";
break;
case 2:
return "Destination";
break;
}
return "No Column Name Defined";
}
void DbMySQLDiffAlter::restore_overriden_names()
{
db_mysql_CatalogRef mod_cat = get_model_catalog();
for (size_t i = 0; i < mod_cat->schemata().count(); i++)
{
db_SchemaRef schema(mod_cat->schemata()[i]);
std::string original_name = schema->customData().get_string("db.mysql.synchronize:originalName", schema->name());
std::string original_old_name = schema->customData().get_string("db.mysql.synchronize:originalOldName", schema->oldName());
schema->customData().remove("db.mysql.synchronize:originalName");
schema->customData().remove("db.mysql.synchronize:originalOldName");
schema->name(original_name);
schema->oldName(original_old_name);
}
}
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