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2300 lines (1929 loc) · 85.4 KB
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/*
Copyright (c) 2014-2016 DataStax
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#include "metadata.hpp"
#include "buffer.hpp"
#include "collection_iterator.hpp"
#include "external_types.hpp"
#include "iterator.hpp"
#include "logger.hpp"
#include "map_iterator.hpp"
#include "result_iterator.hpp"
#include "row.hpp"
#include "row_iterator.hpp"
#include "scoped_lock.hpp"
#include "data_type_parser.hpp"
#include "utils.hpp"
#include "value.hpp"
#include "third_party/rapidjson/rapidjson/document.h"
#include <algorithm>
#include <cmath>
#include <ctype.h>
static std::string& append_arguments(std::string& full_name, const std::string& arguments) {
full_name.push_back('(');
bool first = true;
std::istringstream stream(arguments);
while (!stream.eof()) {
std::string argument;
std::getline(stream, argument, ',');
// Remove white-space
argument.erase(std::remove_if(argument.begin(), argument.end(), ::isspace),
argument.end());
if (!argument.empty()) {
if (!first) full_name.push_back(',');
full_name.append(argument);
first = false;
}
}
full_name.push_back(')');
return full_name;
}
extern "C" {
void cass_schema_meta_free(const CassSchemaMeta* schema_meta) {
delete schema_meta->from();
}
cass_uint32_t cass_schema_meta_snapshot_version(const CassSchemaMeta* schema_meta) {
return schema_meta->version();
}
CassVersion cass_schema_meta_version(const CassSchemaMeta* schema_meta) {
CassVersion version;
version.major_version = schema_meta->cassandra_version().major_version();
version.minor_version = schema_meta->cassandra_version().minor_version();
version.patch_version = schema_meta->cassandra_version().patch_version();
return version;
}
const CassKeyspaceMeta* cass_schema_meta_keyspace_by_name(const CassSchemaMeta* schema_meta,
const char* keyspace) {
return CassKeyspaceMeta::to(schema_meta->get_keyspace(keyspace));
}
const CassKeyspaceMeta* cass_schema_meta_keyspace_by_name_n(const CassSchemaMeta* schema_meta,
const char* keyspace,
size_t keyspace_length) {
return CassKeyspaceMeta::to(schema_meta->get_keyspace(std::string(keyspace, keyspace_length)));
}
void cass_keyspace_meta_name(const CassKeyspaceMeta* keyspace_meta,
const char** name, size_t* name_length) {
*name = keyspace_meta->name().data();
*name_length = keyspace_meta->name().size();
}
const CassTableMeta* cass_keyspace_meta_table_by_name(const CassKeyspaceMeta* keyspace_meta,
const char* table) {
return CassTableMeta::to(keyspace_meta->get_table(table));
}
const CassTableMeta* cass_keyspace_meta_table_by_name_n(const CassKeyspaceMeta* keyspace_meta,
const char* table,
size_t table_length) {
return CassTableMeta::to(keyspace_meta->get_table(std::string(table, table_length)));
}
const CassMaterializedViewMeta* cass_keyspace_meta_materialized_view_by_name(const CassKeyspaceMeta* keyspace_meta,
const char* view) {
return CassMaterializedViewMeta::to(keyspace_meta->get_view(view));
}
const CassMaterializedViewMeta* cass_keyspace_meta_materialized_view_by_name_n(const CassKeyspaceMeta* keyspace_meta,
const char* view,
size_t view_length) {
return CassMaterializedViewMeta::to(keyspace_meta->get_view(std::string(view, view_length)));
}
const CassDataType* cass_keyspace_meta_user_type_by_name(const CassKeyspaceMeta* keyspace_meta,
const char* type) {
return CassDataType::to(keyspace_meta->get_user_type(type));
}
const CassDataType* cass_keyspace_meta_user_type_by_name_n(const CassKeyspaceMeta* keyspace_meta,
const char* type,
size_t type_length) {
return CassDataType::to(keyspace_meta->get_user_type(std::string(type, type_length)));
}
const CassFunctionMeta* cass_keyspace_meta_function_by_name(const CassKeyspaceMeta* keyspace_meta,
const char* name,
const char* arguments) {
std::string full_function_name(name);
return CassFunctionMeta::to(keyspace_meta->get_function(
append_arguments(full_function_name, std::string(arguments))));
}
const CassFunctionMeta* cass_keyspace_meta_function_by_name_n(const CassKeyspaceMeta* keyspace_meta,
const char* name,
size_t name_length,
const char* arguments,
size_t arguments_length) {
std::string full_function_name(name, name_length);
return CassFunctionMeta::to(keyspace_meta->get_function(
append_arguments(full_function_name, std::string(arguments, arguments_length))));
}
const CassAggregateMeta* cass_keyspace_meta_aggregate_by_name(const CassKeyspaceMeta* keyspace_meta,
const char* name,
const char* arguments) {
std::string full_aggregate_name(name);
return CassAggregateMeta::to(keyspace_meta->get_aggregate(
append_arguments(full_aggregate_name, std::string(arguments))));
}
const CassAggregateMeta* cass_keyspace_meta_aggregate_by_name_n(const CassKeyspaceMeta* keyspace_meta,
const char* name,
size_t name_length,
const char* arguments,
size_t arguments_length) {
std::string full_aggregate_name(name, name_length);
return CassAggregateMeta::to(keyspace_meta->get_aggregate(
append_arguments(full_aggregate_name, std::string(arguments, arguments_length))));
}
const CassValue* cass_keyspace_meta_field_by_name(const CassKeyspaceMeta* keyspace_meta,
const char* name) {
return CassValue::to(keyspace_meta->get_field(name));
}
const CassValue* cass_keyspace_meta_field_by_name_n(const CassKeyspaceMeta* keyspace_meta,
const char* name, size_t name_length) {
return CassValue::to(keyspace_meta->get_field(std::string(name, name_length)));
}
void cass_table_meta_name(const CassTableMeta* table_meta,
const char** name, size_t* name_length) {
*name = table_meta->name().data();
*name_length = table_meta->name().size();
}
const CassColumnMeta* cass_table_meta_column_by_name(const CassTableMeta* table_meta,
const char* column) {
return CassColumnMeta::to(table_meta->get_column(column));
}
const CassColumnMeta* cass_table_meta_column_by_name_n(const CassTableMeta* table_meta,
const char* column,
size_t column_length) {
return CassColumnMeta::to(table_meta->get_column(std::string(column, column_length)));
}
size_t cass_table_meta_column_count(const CassTableMeta* table_meta) {
return table_meta->columns().size();
}
const CassColumnMeta* cass_table_meta_column(const CassTableMeta* table_meta,
size_t index) {
if (index >= table_meta->columns().size()) {
return NULL;
}
return CassColumnMeta::to(table_meta->columns()[index].get());
}
const CassIndexMeta* cass_table_meta_index_by_name(const CassTableMeta* table_meta,
const char* index) {
return CassIndexMeta::to(table_meta->get_index(index));
}
const CassIndexMeta* cass_table_meta_index_by_name_n(const CassTableMeta* table_meta,
const char* index,
size_t index_length) {
return CassIndexMeta::to(table_meta->get_index(std::string(index, index_length)));
}
size_t cass_table_meta_index_count(const CassTableMeta* table_meta) {
return table_meta->indexes().size();
}
const CassIndexMeta* cass_table_meta_index(const CassTableMeta* table_meta,
size_t index) {
if (index >= table_meta->indexes().size()) {
return NULL;
}
return CassIndexMeta::to(table_meta->indexes()[index].get());
}
const CassMaterializedViewMeta* cass_table_meta_materialized_view_by_name(const CassTableMeta* table_meta,
const char* view) {
return CassMaterializedViewMeta::to(table_meta->get_view(view));
}
const CassMaterializedViewMeta* cass_table_meta_materialized_view_by_name_n(const CassTableMeta* table_meta,
const char* view,
size_t view_length) {
return CassMaterializedViewMeta::to(table_meta->get_view(std::string(view, view_length)));
}
size_t cass_table_meta_materialized_view_count(const CassTableMeta* table_meta) {
return table_meta->views().size();
}
const CassMaterializedViewMeta* cass_table_meta_materialized_view(const CassTableMeta* table_meta,
size_t index) {
if (index >= table_meta->views().size()) {
return NULL;
}
return CassMaterializedViewMeta::to(table_meta->views()[index].get());
}
size_t cass_table_meta_partition_key_count(const CassTableMeta* table_meta) {
return table_meta->partition_key().size();
}
const CassColumnMeta* cass_table_meta_partition_key(const CassTableMeta* table_meta,
size_t index) {
if (index >= table_meta->partition_key().size()) {
return NULL;
}
return CassColumnMeta::to(table_meta->partition_key()[index].get());
}
size_t cass_table_meta_clustering_key_count(const CassTableMeta* table_meta) {
return table_meta->clustering_key().size();
}
const CassColumnMeta* cass_table_meta_clustering_key(const CassTableMeta* table_meta,
size_t index) {
if (index >= table_meta->clustering_key().size()) {
return NULL;
}
return CassColumnMeta::to(table_meta->clustering_key()[index].get());
}
CassClusteringOrder cass_table_meta_clustering_key_order(const CassTableMeta* table_meta,
size_t index) {
if (index >= table_meta->clustering_key_order().size()) {
return CASS_CLUSTERING_ORDER_NONE;
}
return table_meta->clustering_key_order()[index];
}
const CassValue* cass_table_meta_field_by_name(const CassTableMeta* table_meta,
const char* name) {
return CassValue::to(table_meta->get_field(name));
}
const CassValue* cass_table_meta_field_by_name_n(const CassTableMeta* table_meta,
const char* name, size_t name_length) {
return CassValue::to(table_meta->get_field(std::string(name, name_length)));
}
const CassColumnMeta* cass_materialized_view_meta_column_by_name(const CassMaterializedViewMeta* view_meta,
const char* column) {
return CassColumnMeta::to(view_meta->get_column(column));
}
const CassColumnMeta* cass_materialized_view_meta_column_by_name_n(const CassMaterializedViewMeta* view_meta,
const char* column,
size_t column_length) {
return CassColumnMeta::to(view_meta->get_column(std::string(column, column_length)));
}
void cass_materialized_view_meta_name(const CassMaterializedViewMeta* view_meta,
const char** name, size_t* name_length) {
*name = view_meta->name().data();
*name_length = view_meta->name().size();
}
const CassTableMeta* cass_materialized_view_meta_base_table(const CassMaterializedViewMeta* view_meta) {
return CassTableMeta::to(view_meta->base_table());
}
const CassValue* cass_materialized_view_meta_field_by_name(const CassMaterializedViewMeta* view_meta,
const char* name) {
return CassValue::to(view_meta->get_field(name));
}
const CassValue* cass_materialized_view_meta_field_by_name_n(const CassMaterializedViewMeta* view_meta,
const char* name, size_t name_length) {
return CassValue::to(view_meta->get_field(std::string(name, name_length)));
}
size_t cass_materialized_view_meta_column_count(const CassMaterializedViewMeta* view_meta) {
return view_meta->columns().size();
}
const CassColumnMeta* cass_materialized_view_meta_column(const CassMaterializedViewMeta* view_meta,
size_t index) {
if (index >= view_meta->columns().size()) {
return NULL;
}
return CassColumnMeta::to(view_meta->columns()[index].get());
}
size_t cass_materialized_view_meta_partition_key_count(const CassMaterializedViewMeta* view_meta) {
return view_meta->partition_key().size();
}
const CassColumnMeta* cass_materialized_view_meta_partition_key(const CassMaterializedViewMeta* view_meta,
size_t index) {
if (index >= view_meta->partition_key().size()) {
return NULL;
}
return CassColumnMeta::to(view_meta->partition_key()[index].get());
}
size_t cass_materialized_view_meta_clustering_key_count(const CassMaterializedViewMeta* view_meta) {
return view_meta->clustering_key().size();
}
const CassColumnMeta* cass_materialized_view_meta_clustering_key(const CassMaterializedViewMeta* view_meta,
size_t index) {
if (index >= view_meta->clustering_key().size()) {
return NULL;
}
return CassColumnMeta::to(view_meta->clustering_key()[index].get());
}
CassClusteringOrder cass_materialized_view_meta_clustering_key_order(const CassMaterializedViewMeta* view_meta,
size_t index) {
if (index >= view_meta->clustering_key_order().size()) {
return CASS_CLUSTERING_ORDER_NONE;
}
return view_meta->clustering_key_order()[index];
}
void cass_column_meta_name(const CassColumnMeta* column_meta,
const char** name, size_t* name_length) {
*name = column_meta->name().data();
*name_length = column_meta->name().size();
}
CassColumnType cass_column_meta_type(const CassColumnMeta* column_meta) {
return column_meta->type();
}
const CassDataType* cass_column_meta_data_type(const CassColumnMeta* column_meta) {
return CassDataType::to(column_meta->data_type().get());
}
const CassValue*
cass_column_meta_field_by_name(const CassColumnMeta* column_meta,
const char* name) {
return CassValue::to(column_meta->get_field(name));
}
const CassValue*
cass_column_meta_field_by_name_n(const CassColumnMeta* column_meta,
const char* name, size_t name_length) {
return CassValue::to(column_meta->get_field(std::string(name, name_length)));
}
void cass_index_meta_name(const CassIndexMeta* index_meta,
const char** name, size_t* name_length) {
*name = index_meta->name().data();
*name_length = index_meta->name().size();
}
CassIndexType cass_index_meta_type(const CassIndexMeta* index_meta) {
return index_meta->type();
}
void cass_index_meta_target(const CassIndexMeta* index_meta,
const char** target, size_t* target_length) {
*target = index_meta->target().data();
*target_length = index_meta->target().size();
}
const CassValue* cass_index_meta_options(const CassIndexMeta* index_meta) {
return CassValue::to(index_meta->options());
}
const CassValue*
cass_index_meta_field_by_name(const CassIndexMeta* index_meta,
const char* name) {
return CassValue::to(index_meta->get_field(name));
}
const CassValue*
cass_index_meta_field_by_name_n(const CassIndexMeta* index_meta,
const char* name, size_t name_length) {
return CassValue::to(index_meta->get_field(std::string(name, name_length)));
}
void cass_function_meta_name(const CassFunctionMeta* function_meta,
const char** name,
size_t* name_length) {
*name = function_meta->simple_name().data();
*name_length = function_meta->simple_name().size();
}
void cass_function_meta_full_name(const CassFunctionMeta* function_meta,
const char** full_name,
size_t* full_name_length) {
*full_name = function_meta->name().data();
*full_name_length = function_meta->name().size();
}
void cass_function_meta_body(const CassFunctionMeta* function_meta,
const char** body,
size_t* body_length) {
*body = function_meta->body().data();
*body_length = function_meta->body().size();
}
void cass_function_meta_language(const CassFunctionMeta* function_meta,
const char** language,
size_t* language_length) {
*language = function_meta->language().data();
*language_length = function_meta->language().size();
}
cass_bool_t cass_function_meta_called_on_null_input(const CassFunctionMeta* function_meta) {
return function_meta->called_on_null_input() ? cass_true : cass_false;
}
size_t cass_function_meta_argument_count(const CassFunctionMeta* function_meta) {
return function_meta->args().size();
}
CassError cass_function_meta_argument(const CassFunctionMeta* function_meta,
size_t index,
const char** name,
size_t* name_length,
const CassDataType** type) {
if (index >= function_meta->args().size()) {
return CASS_ERROR_LIB_INDEX_OUT_OF_BOUNDS;
}
const cass::FunctionMetadata::Argument& arg = function_meta->args()[index];
*name = arg.name.data();
*name_length = arg.name.size();
*type = CassDataType::to(arg.type.get());
return CASS_OK;
}
const CassDataType* cass_function_meta_argument_type_by_name(const CassFunctionMeta* function_meta,
const char* name) {
return CassDataType::to(function_meta->get_arg_type(name));
}
const CassDataType* cass_function_meta_argument_type_by_name_n(const CassFunctionMeta* function_meta,
const char* name,
size_t name_length) {
return CassDataType::to(function_meta->get_arg_type(cass::StringRef(name, name_length)));
}
const CassDataType* cass_function_meta_return_type(const CassFunctionMeta* function_meta) {
return CassDataType::to(function_meta->return_type().get());
}
const CassValue* cass_function_meta_field_by_name(const CassFunctionMeta* function_meta,
const char* name) {
return CassValue::to(function_meta->get_field(name));
}
const CassValue* cass_function_meta_field_by_name_n(const CassFunctionMeta* function_meta,
const char* name,
size_t name_length) {
return CassValue::to(function_meta->get_field(std::string(name, name_length)));
}
void cass_aggregate_meta_name(const CassAggregateMeta* aggregate_meta,
const char** name,
size_t* name_length) {
*name = aggregate_meta->simple_name().data();
*name_length = aggregate_meta->simple_name().size();
}
void cass_aggregate_meta_full_name(const CassAggregateMeta* aggregate_meta,
const char** full_name,
size_t* full_name_length) {
*full_name = aggregate_meta->name().data();
*full_name_length = aggregate_meta->name().size();
}
size_t cass_aggregate_meta_argument_count(const CassAggregateMeta* aggregate_meta) {
return aggregate_meta->arg_types().size();
}
const CassDataType* cass_aggregate_meta_argument_type(const CassAggregateMeta* aggregate_meta,
size_t index) {
if (index >= aggregate_meta->arg_types().size()) {
return NULL;
}
return CassDataType::to(aggregate_meta->arg_types()[index].get());
}
const CassDataType* cass_aggregate_meta_return_type(const CassAggregateMeta* aggregate_meta) {
return CassDataType::to(aggregate_meta->return_type().get());
}
const CassDataType* cass_aggregate_meta_state_type(const CassAggregateMeta* aggregate_meta) {
return CassDataType::to(aggregate_meta->state_type().get());
}
const CassFunctionMeta* cass_aggregate_meta_state_func(const CassAggregateMeta* aggregate_meta) {
return CassFunctionMeta::to(aggregate_meta->state_func().get());
}
const CassFunctionMeta* cass_aggregate_meta_final_func(const CassAggregateMeta* aggregate_meta) {
return CassFunctionMeta::to(aggregate_meta->final_func().get());
}
const CassValue* cass_aggregate_meta_init_cond(const CassAggregateMeta* aggregate_meta) {
return CassValue::to(&aggregate_meta->init_cond());
}
const CassValue* cass_aggregate_meta_field_by_name(const CassAggregateMeta* aggregate_meta,
const char* name) {
return CassValue::to(aggregate_meta->get_field(name));
}
const CassValue* cass_aggregate_meta_field_by_name_n(const CassAggregateMeta* aggregate_meta,
const char* name,
size_t name_length) {
return CassValue::to(aggregate_meta->get_field(std::string(name, name_length)));
}
CassIterator* cass_iterator_keyspaces_from_schema_meta(const CassSchemaMeta* schema_meta) {
return CassIterator::to(schema_meta->iterator_keyspaces());
}
CassIterator* cass_iterator_tables_from_keyspace_meta(const CassKeyspaceMeta* keyspace_meta) {
return CassIterator::to(keyspace_meta->iterator_tables());
}
CassIterator* cass_iterator_materialized_views_from_keyspace_meta(const CassKeyspaceMeta* keyspace_meta) {
return CassIterator::to(keyspace_meta->iterator_views());
}
CassIterator* cass_iterator_user_types_from_keyspace_meta(const CassKeyspaceMeta* keyspace_meta) {
return CassIterator::to(keyspace_meta->iterator_user_types());
}
CassIterator* cass_iterator_functions_from_keyspace_meta(const CassKeyspaceMeta* keyspace_meta) {
return CassIterator::to(keyspace_meta->iterator_functions());
}
CassIterator* cass_iterator_aggregates_from_keyspace_meta(const CassKeyspaceMeta* keyspace_meta) {
return CassIterator::to(keyspace_meta->iterator_aggregates());
}
CassIterator* cass_iterator_fields_from_keyspace_meta(const CassKeyspaceMeta* keyspace_meta) {
return CassIterator::to(keyspace_meta->iterator_fields());
}
CassIterator* cass_iterator_columns_from_table_meta(const CassTableMeta* table_meta) {
return CassIterator::to(table_meta->iterator_columns());
}
CassIterator* cass_iterator_materialized_views_from_table_meta(const CassTableMeta* table_meta) {
return CassIterator::to(table_meta->iterator_views());
}
CassIterator* cass_iterator_indexes_from_table_meta(const CassTableMeta* table_meta) {
return CassIterator::to(table_meta->iterator_indexes());
}
CassIterator* cass_iterator_fields_from_table_meta(const CassTableMeta* table_meta) {
return CassIterator::to(table_meta->iterator_fields());
}
CassIterator* cass_iterator_columns_from_materialized_view_meta(const CassMaterializedViewMeta* view_meta) {
return CassIterator::to(view_meta->iterator_columns());
}
CassIterator* cass_iterator_fields_from_materialized_view_meta(const CassMaterializedViewMeta* view_meta) {
return CassIterator::to(view_meta->iterator_fields());
}
CassIterator* cass_iterator_fields_from_column_meta(const CassColumnMeta* column_meta) {
return CassIterator::to(column_meta->iterator_fields());
}
CassIterator* cass_iterator_fields_from_index_meta(const CassIndexMeta* index_meta) {
return CassIterator::to(index_meta->iterator_fields());
}
CassIterator* cass_iterator_fields_from_function_meta(const CassFunctionMeta* function_meta) {
return CassIterator::to(function_meta->iterator_fields());
}
CassIterator* cass_iterator_fields_from_aggregate_meta(const CassAggregateMeta* aggregate_meta) {
return CassIterator::to(aggregate_meta->iterator_fields());
}
const CassKeyspaceMeta* cass_iterator_get_keyspace_meta(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_KEYSPACE_META) {
return NULL;
}
return CassKeyspaceMeta::to(
static_cast<const cass::Metadata::KeyspaceIterator*>(
iterator->from())->keyspace());
}
const CassTableMeta* cass_iterator_get_table_meta(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_TABLE_META) {
return NULL;
}
return CassTableMeta::to(
static_cast<const cass::KeyspaceMetadata::TableIterator*>(
iterator->from())->table());
}
const CassMaterializedViewMeta* cass_iterator_get_materialized_view_meta(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_MATERIALIZED_VIEW_META) {
return NULL;
}
return CassMaterializedViewMeta::to(
static_cast<const cass::ViewIteratorBase*>(
iterator->from())->view());
}
const CassDataType* cass_iterator_get_user_type(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_TYPE_META) {
return NULL;
}
return CassDataType::to(
static_cast<const cass::KeyspaceMetadata::TypeIterator*>(
iterator->from())->type());
}
const CassFunctionMeta* cass_iterator_get_function_meta(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_FUNCTION_META) {
return NULL;
}
return CassFunctionMeta::to(
static_cast<const cass::KeyspaceMetadata::FunctionIterator*>(
iterator->from())->function());
}
const CassAggregateMeta* cass_iterator_get_aggregate_meta(const CassIterator* iterator){
if (iterator->type() != CASS_ITERATOR_TYPE_AGGREGATE_META) {
return NULL;
}
return CassAggregateMeta::to(
static_cast<const cass::KeyspaceMetadata::AggregateIterator*>(
iterator->from())->aggregate());
}
const CassColumnMeta* cass_iterator_get_column_meta(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_COLUMN_META) {
return NULL;
}
return CassColumnMeta::to(
static_cast<const cass::TableMetadata::ColumnIterator*>(
iterator->from())->column());
}
const CassIndexMeta* cass_iterator_get_index_meta(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_INDEX_META) {
return NULL;
}
return CassIndexMeta::to(
static_cast<const cass::TableMetadata::IndexIterator*>(
iterator->from())->index());
}
CassError cass_iterator_get_meta_field_name(const CassIterator* iterator,
const char** name,
size_t* name_length) {
if (iterator->type() != CASS_ITERATOR_TYPE_META_FIELD) {
return CASS_ERROR_LIB_BAD_PARAMS;
}
const cass::MetadataField* field =
static_cast<const cass::MetadataFieldIterator*>(iterator->from())->field();
*name = field->name().data();
*name_length = field->name().size();
return CASS_OK;
}
const CassValue* cass_iterator_get_meta_field_value(const CassIterator* iterator) {
if (iterator->type() != CASS_ITERATOR_TYPE_META_FIELD) {
return NULL;
}
return CassValue::to(
static_cast<const cass::MetadataFieldIterator*>(
iterator->from())->field()->value());
}
} // extern "C"
namespace cass {
static const char* table_column_name(const cass::VersionNumber& cassandra_version) {
return cassandra_version >= VersionNumber(3, 0, 0) ? "table_name" : "columnfamily_name";
}
static const char* signature_column_name(const cass::VersionNumber& cassandra_version) {
return cassandra_version >= VersionNumber(3, 0, 0) ? "argument_types" : "signature";
}
template <class T>
const T& as_const(const T& x) { return x; }
struct ColumnCompare {
typedef CassColumnMeta::Ptr argument_type;
bool operator()(const CassColumnMeta::Ptr& a, const CassColumnMeta::Ptr& b) const {
bool result;
if (a->type() == b->type()) {
result = (a->type() == CASS_COLUMN_TYPE_PARTITION_KEY ||
a->type() == CASS_COLUMN_TYPE_CLUSTERING_KEY) &&
a->position() < b->position();
} else {
result = a->type() == CASS_COLUMN_TYPE_PARTITION_KEY ||
(a->type() == CASS_COLUMN_TYPE_CLUSTERING_KEY &&
b->type() != CASS_COLUMN_TYPE_PARTITION_KEY);
}
return result;
}
};
const KeyspaceMetadata* Metadata::SchemaSnapshot::get_keyspace(const std::string& name) const {
KeyspaceMetadata::Map::const_iterator i = keyspaces_->find(name);
if (i == keyspaces_->end()) return NULL;
return &i->second;
}
const UserType* Metadata::SchemaSnapshot::get_user_type(const std::string& keyspace_name,
const std::string& type_name) const
{
KeyspaceMetadata::Map::const_iterator i = keyspaces_->find(keyspace_name);
if (i == keyspaces_->end()) {
return NULL;
}
return i->second.get_user_type(type_name);
}
std::string Metadata::full_function_name(const std::string& name, const StringVec& signature) {
std::string full_function_name(name);
full_function_name.push_back('(');
for (StringVec::const_iterator i = signature.begin(),
end = signature.end(); i != end; ++i) {
std::string argument(*i);
// Remove white-space
argument.erase(std::remove_if(argument.begin(), argument.end(), ::isspace),
argument.end());
if (!argument.empty()) {
if (i != signature.begin()) full_function_name.push_back(',');
full_function_name.append(argument);
}
}
full_function_name.push_back(')');
return full_function_name;
}
Metadata::SchemaSnapshot Metadata::schema_snapshot(int protocol_version, const VersionNumber& cassandra_version) const {
ScopedMutex l(&mutex_);
return SchemaSnapshot(schema_snapshot_version_,
protocol_version,
cassandra_version,
front_.keyspaces());
}
void Metadata::update_keyspaces(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_keyspaces(protocol_version, cassandra_version, result);
} else {
updating_->update_keyspaces(protocol_version, cassandra_version, result);
}
}
void Metadata::update_tables(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_tables(protocol_version, cassandra_version, result);
} else {
updating_->update_tables(protocol_version, cassandra_version, result);
}
}
void Metadata::update_views(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_views(protocol_version, cassandra_version, result);
} else {
updating_->update_views(protocol_version, cassandra_version, result);
}
}
void Metadata::update_columns(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_columns(protocol_version, cassandra_version, native_types_, result);
if (cassandra_version < VersionNumber(3, 0, 0)) {
updating_->update_legacy_indexes(protocol_version, cassandra_version, result);
}
} else {
updating_->update_columns(protocol_version, cassandra_version, native_types_, result);
if (cassandra_version < VersionNumber(3, 0, 0)) {
updating_->update_legacy_indexes(protocol_version, cassandra_version, result);
}
}
}
void Metadata::update_indexes(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_indexes(protocol_version, cassandra_version, result);
} else {
updating_->update_indexes(protocol_version, cassandra_version, result);
}
}
void Metadata::update_user_types(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_user_types(protocol_version, cassandra_version, native_types_, result);
} else {
updating_->update_user_types(protocol_version, cassandra_version, native_types_, result);
}
}
void Metadata::update_functions(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_functions(protocol_version, cassandra_version, native_types_, result);
} else {
updating_->update_functions(protocol_version, cassandra_version, native_types_, result);
}
}
void Metadata::update_aggregates(int protocol_version, const VersionNumber& cassandra_version, ResultResponse* result) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->update_aggregates(protocol_version, cassandra_version, native_types_, result);
} else {
updating_->update_aggregates(protocol_version, cassandra_version, native_types_, result);
}
}
void Metadata::drop_keyspace(const std::string& keyspace_name) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->drop_keyspace(keyspace_name);
} else {
updating_->drop_keyspace(keyspace_name);
}
}
void Metadata::drop_table_or_view(const std::string& keyspace_name, const std::string& table_or_view_name) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->drop_table_or_view(keyspace_name, table_or_view_name);
} else {
updating_->drop_table_or_view(keyspace_name, table_or_view_name);
}
}
void Metadata::drop_user_type(const std::string& keyspace_name, const std::string& type_name) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->drop_user_type(keyspace_name, type_name);
} else {
updating_->drop_user_type(keyspace_name, type_name);
}
}
void Metadata::drop_function(const std::string& keyspace_name, const std::string& full_function_name) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->drop_function(keyspace_name, full_function_name);
} else {
updating_->drop_function(keyspace_name, full_function_name);
}
}
void Metadata::drop_aggregate(const std::string& keyspace_name, const std::string& full_aggregate_name) {
schema_snapshot_version_++;
if (is_front_buffer()) {
ScopedMutex l(&mutex_);
updating_->drop_aggregate(keyspace_name, full_aggregate_name);
} else {
updating_->drop_aggregate(keyspace_name, full_aggregate_name);
}
}
void Metadata::clear_and_update_back(const VersionNumber& cassandra_version) {
if (cassandra_version >= VersionNumber(3, 0, 0)) {
native_types_.init_cql_names();
} else {
native_types_.init_class_names();
}
back_.clear();
updating_ = &back_;
}
void Metadata::swap_to_back_and_update_front() {
{
ScopedMutex l(&mutex_);
schema_snapshot_version_++;
front_.swap(back_);
}
back_.clear();
updating_ = &front_;
}
void Metadata::clear() {
{
ScopedMutex l(&mutex_);
schema_snapshot_version_ = 0;
front_.clear();
}
back_.clear();
}
const Value* MetadataBase::get_field(const std::string& name) const {
MetadataField::Map::const_iterator it = fields_.find(name);
if (it == fields_.end()) return NULL;
return it->second.value();
}
std::string MetadataBase::get_string_field(const std::string& name) const {
const Value* value = get_field(name);
if (value == NULL) return std::string();
return value->to_string();
}
const Value* MetadataBase::add_field(const SharedRefPtr<RefBuffer>& buffer, const Row* row, const std::string& name) {
const Value* value = row->get_by_name(name);
if (value == NULL) return NULL;
if (value->size() <= 0) {
fields_[name] = MetadataField(name);
return NULL; // Return NULL for "null" columns
} else {
fields_[name] = MetadataField(name, *value, buffer);
return value;
}
}
void MetadataBase::add_field(const SharedRefPtr<RefBuffer>& buffer, const Value& value, const std::string& name) {
fields_[name] = MetadataField(name, value, buffer);
}
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