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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.
#ifndef I18N_ADDRESSINPUT_VALIDATION_TASK_H_
#define I18N_ADDRESSINPUT_VALIDATION_TASK_H_
#include <libaddressinput/address_field.h>
#include <libaddressinput/address_problem.h>
#include <libaddressinput/address_validator.h>
#include <libaddressinput/supplier.h>
#include <libaddressinput/util/basictypes.h>
#include <libaddressinput/util/scoped_ptr.h>
#include <string>
namespace i18n {
namespace addressinput {
class LookupKey;
struct AddressData;
// A ValidationTask object encapsulates the information necessary to perform
// validation of one particular address and call a callback when that has been
// done. Calling the Run() method will load required metadata, then perform
// validation, call the callback and delete the ValidationTask object itself.
class ValidationTask {
public:
ValidationTask(const AddressData& address,
bool allow_postal,
bool require_name,
const FieldProblemMap* filter,
FieldProblemMap* problems,
const AddressValidator::Callback& validated);
~ValidationTask();
// Calls supplier->Load(), with Validate() as callback.
void Run(Supplier* supplier) const;
private:
friend class ValidationTaskTest;
// Uses the address metadata of |hierarchy| to validate |address_|, writing
// problems found into |problems_|, then calls the |validated_| callback and
// deletes this ValidationTask object.
void Validate(bool success,
const LookupKey& lookup_key,
const Supplier::RuleHierarchy& hierarchy);
// Checks all fields for UNEXPECTED_FIELD problems.
void CheckUnexpectedField(const std::string& region_code) const;
// Checks all fields for MISSING_REQUIRED_FIELD problems.
void CheckMissingRequiredField(const std::string& region_code) const;
// Checks the hierarchical fields for UNKNOWN_VALUE problems.
void CheckUnknownValue(
const Supplier::RuleHierarchy& hierarchy) const;
// Checks the POSTAL_CODE field for problems.
void CheckPostalCodeFormatAndValue(
const Supplier::RuleHierarchy& hierarchy) const;
// Checks the STREET_ADDRESS field for USES_P_O_BOX problems.
void CheckUsesPoBox(
const Supplier::RuleHierarchy& hierarchy) const;
// Writes (|field|,|problem|) to |problems_|.
void ReportProblem(AddressField field, AddressProblem problem) const;
// Writes (|field|,|problem|) to |problems_|, if this pair should be reported.
void ReportProblemMaybe(AddressField field, AddressProblem problem) const;
// Returns whether (|field|,|problem|) should be reported.
bool ShouldReport(AddressField field, AddressProblem problem) const;
const AddressData& address_;
const bool allow_postal_;
const bool require_name_;
const FieldProblemMap* filter_;
FieldProblemMap* const problems_;
const AddressValidator::Callback& validated_;
const scoped_ptr<const Supplier::Callback> supplied_;
const scoped_ptr<LookupKey> lookup_key_;
DISALLOW_COPY_AND_ASSIGN(ValidationTask);
};
} // namespace addressinput
} // namespace i18n
#endif // I18N_ADDRESSINPUT_VALIDATION_TASK_H_
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