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// Copyright (C) 2014 Google Inc.
//
// 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 <libaddressinput/ondemand_supplier.h>
#include <algorithm>
#include <cstddef>
#include <string>
#include "lookup_key.h"
#include "ondemand_supply_task.h"
#include "region_data_constants.h"
#include "retriever.h"
#include "rule.h"
namespace i18n {
namespace addressinput {
OndemandSupplier::OndemandSupplier(const Source* source, Storage* storage)
: retriever_(new Retriever(source, storage)) {
}
OndemandSupplier::~OndemandSupplier() {
for (const auto& pair : rule_cache_) {
delete pair.second;
}
}
void OndemandSupplier::SupplyGlobally(const LookupKey& lookup_key,
const Callback& supplied) {
Supply(lookup_key, supplied);
}
void OndemandSupplier::Supply(const LookupKey& lookup_key,
const Callback& supplied) {
auto* task = new OndemandSupplyTask(lookup_key, &rule_cache_, supplied);
if (RegionDataConstants::IsSupported(lookup_key.GetRegionCode())) {
size_t max_depth = std::min(
lookup_key.GetDepth(),
RegionDataConstants::GetMaxLookupKeyDepth(lookup_key.GetRegionCode()));
for (size_t depth = 0; depth <= max_depth; ++depth) {
const std::string& key = lookup_key.ToKeyString(depth);
auto it = rule_cache_.find(key);
if (it != rule_cache_.end()) {
task->hierarchy_.rule[depth] = it->second;
} else {
task->Queue(key); // If not in the cache, it needs to be loaded.
}
}
}
task->Retrieve(*retriever_);
}
} // namespace addressinput
} // namespace i18n