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// Copyright (C) 2022 Google LLC
//
// 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 "icing/monkey_test/monkey-test-generators.h"
namespace icing {
namespace lib {
SchemaProto MonkeySchemaGenerator::GenerateSchema(
int num_types, const std::vector<int>& possible_num_properties) const {
SchemaProto schema;
std::uniform_int_distribution<> dist(0, possible_num_properties.size() - 1);
while (num_types > 0) {
int num_properties = possible_num_properties[dist(*random_)];
*schema.add_types() = GenerateType(
"MonkeyTestType" + std::to_string(num_types), num_properties);
--num_types;
}
return schema;
}
PropertyConfigProto MonkeySchemaGenerator::GenerateProperty(
std::string_view name, TermMatchType::Code term_match_type) const {
PropertyConfigProto prop;
prop.set_property_name(name.data(), name.length());
// TODO: Perhaps in future iterations we will want to generate more than just
// string properties.
prop.set_data_type(PropertyConfigProto::DataType::STRING);
constexpr std::array<PropertyConfigProto::Cardinality::Code, 3>
cardinalities = {PropertyConfigProto::Cardinality::REPEATED,
PropertyConfigProto::Cardinality::OPTIONAL,
PropertyConfigProto::Cardinality::REQUIRED};
std::uniform_int_distribution<> dist(0, cardinalities.size() - 1);
prop.set_cardinality(cardinalities[dist(*random_)]);
if (term_match_type != TermMatchType::UNKNOWN) {
StringIndexingConfig* string_indexing_config =
prop.mutable_string_indexing_config();
string_indexing_config->set_term_match_type(term_match_type);
string_indexing_config->set_tokenizer_type(
StringIndexingConfig::TokenizerType::PLAIN);
}
return prop;
}
SchemaTypeConfigProto MonkeySchemaGenerator::GenerateType(
std::string_view name, int num_properties) const {
SchemaTypeConfigProto type_config;
type_config.set_schema_type(name.data(), name.length());
int num_indexed_properties = 0;
constexpr std::array<TermMatchType::Code, 3> term_match_types = {
TermMatchType::UNKNOWN, TermMatchType::EXACT_ONLY, TermMatchType::PREFIX};
std::uniform_int_distribution<> dist(0, term_match_types.size() - 1);
while (--num_properties >= 0) {
std::string prop_name = "MonkeyTestProp" + std::to_string(num_properties);
TermMatchType::Code term_match_type = TermMatchType::UNKNOWN;
if (num_indexed_properties < kTotalNumSections) {
term_match_type = term_match_types[dist(*random_)];
}
if (term_match_type != TermMatchType::UNKNOWN) {
num_indexed_properties += 1;
}
(*type_config.add_properties()) =
GenerateProperty(prop_name, term_match_type);
}
return type_config;
}
std::string MonkeyDocumentGenerator::GetNamespace() const {
uint32_t name_space;
// When num_namespaces is 0, all documents generated get different namespaces.
// Otherwise, namespaces will be randomly picked from a set with
// num_namespaces elements.
if (num_namespaces_ == 0) {
name_space = num_docs_generated_;
} else {
std::uniform_int_distribution<> dist(0, num_namespaces_ - 1);
name_space = dist(*random_);
}
return absl_ports::StrCat("namespace", std::to_string(name_space));
}
std::string MonkeyDocumentGenerator::GetUri() const {
uint32_t uri;
// When num_uris is 0, all documents generated get different URIs. Otherwise,
// URIs will be randomly picked from a set with num_uris elements.
if (num_uris_ == 0) {
uri = num_docs_generated_;
} else {
std::uniform_int_distribution<> dist(0, num_uris_ - 1);
uri = dist(*random_);
}
return absl_ports::StrCat("uri", std::to_string(uri));
}
int MonkeyDocumentGenerator::GetNumTokens() const {
std::uniform_int_distribution<> dist(0, possible_num_tokens_.size() - 1);
int n = possible_num_tokens_[dist(*random_)];
// Add some noise
std::uniform_real_distribution<> real_dist(0.5, 1);
float p = real_dist(*random_);
return n * p;
}
std::vector<std::string> MonkeyDocumentGenerator::GetPropertyContent() const {
std::vector<std::string> content;
int num_tokens = GetNumTokens();
while (num_tokens) {
content.push_back(std::string(GetToken()));
--num_tokens;
}
return content;
}
MonkeyTokenizedDocument MonkeyDocumentGenerator::GenerateDocument() {
MonkeyTokenizedDocument document;
const SchemaTypeConfigProto& type_config = GetType();
const std::string& name_space = GetNamespace();
DocumentBuilder doc_builder =
DocumentBuilder()
.SetNamespace(name_space)
.SetSchema(type_config.schema_type())
.SetUri(GetUri())
.SetCreationTimestampMs(clock_.GetSystemTimeMilliseconds());
for (const PropertyConfigProto& prop : type_config.properties()) {
std::vector<std::string> prop_content = GetPropertyContent();
doc_builder.AddStringProperty(prop.property_name(),
absl_ports::StrJoin(prop_content, " "));
// Create a tokenized section if the current property is indexable.
if (prop.data_type() == PropertyConfigProto::DataType::STRING &&
prop.string_indexing_config().term_match_type() !=
TermMatchType::UNKNOWN) {
MonkeyTokenizedSection section = {
prop.property_name(), prop.string_indexing_config().term_match_type(),
std::move(prop_content)};
document.tokenized_sections.push_back(std::move(section));
}
}
document.document = doc_builder.Build();
++num_docs_generated_;
return document;
}
} // namespace lib
} // namespace icing
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