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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/network/onc/onc_mapper.h"
#include "base/logging.h"
#include "base/values.h"
#include "chromeos/network/onc/onc_signature.h"
namespace chromeos {
namespace onc {
Mapper::Mapper() {
}
Mapper::~Mapper() {
}
scoped_ptr<base::Value> Mapper::MapValue(const OncValueSignature& signature,
const base::Value& onc_value,
bool* error) {
scoped_ptr<base::Value> result_value;
switch (onc_value.GetType()) {
case base::Value::TYPE_DICTIONARY: {
const base::DictionaryValue* dict = NULL;
onc_value.GetAsDictionary(&dict);
result_value = MapObject(signature, *dict, error);
break;
}
case base::Value::TYPE_LIST: {
const base::ListValue* list = NULL;
onc_value.GetAsList(&list);
result_value = MapArray(signature, *list, error);
break;
}
default: {
result_value = MapPrimitive(signature, onc_value, error);
break;
}
}
return result_value.Pass();
}
scoped_ptr<base::DictionaryValue> Mapper::MapObject(
const OncValueSignature& signature,
const base::DictionaryValue& onc_object,
bool* error) {
scoped_ptr<base::DictionaryValue> result(new base::DictionaryValue);
bool found_unknown_field = false;
MapFields(signature, onc_object, &found_unknown_field, error, result.get());
if (found_unknown_field)
*error = true;
return result.Pass();
}
scoped_ptr<base::Value> Mapper::MapPrimitive(const OncValueSignature& signature,
const base::Value& onc_primitive,
bool* error) {
return make_scoped_ptr(onc_primitive.DeepCopy());
}
void Mapper::MapFields(const OncValueSignature& object_signature,
const base::DictionaryValue& onc_object,
bool* found_unknown_field,
bool* nested_error,
base::DictionaryValue* result) {
for (base::DictionaryValue::Iterator it(onc_object); !it.IsAtEnd();
it.Advance()) {
bool current_field_unknown = false;
scoped_ptr<base::Value> result_value = MapField(it.key(),
object_signature,
it.value(),
¤t_field_unknown,
nested_error);
if (current_field_unknown)
*found_unknown_field = true;
else if (result_value.get() != NULL)
result->SetWithoutPathExpansion(it.key(), result_value.release());
else
DCHECK(*nested_error);
}
}
scoped_ptr<base::Value> Mapper::MapField(
const std::string& field_name,
const OncValueSignature& object_signature,
const base::Value& onc_value,
bool* found_unknown_field,
bool* error) {
const OncFieldSignature* field_signature =
GetFieldSignature(object_signature, field_name);
if (field_signature != NULL) {
DCHECK(field_signature->value_signature != NULL)
<< "Found missing value signature at field '" << field_name << "'.";
return MapValue(*field_signature->value_signature, onc_value, error);
} else {
DVLOG(1) << "Found unknown field name: '" << field_name << "'";
*found_unknown_field = true;
return scoped_ptr<base::Value>();
}
}
scoped_ptr<base::ListValue> Mapper::MapArray(
const OncValueSignature& array_signature,
const base::ListValue& onc_array,
bool* nested_error) {
DCHECK(array_signature.onc_array_entry_signature != NULL)
<< "Found missing onc_array_entry_signature.";
scoped_ptr<base::ListValue> result_array(new base::ListValue);
int original_index = 0;
for (base::ListValue::const_iterator it = onc_array.begin();
it != onc_array.end(); ++it, ++original_index) {
const base::Value* entry = *it;
scoped_ptr<base::Value> result_entry;
result_entry = MapEntry(original_index,
*array_signature.onc_array_entry_signature,
*entry,
nested_error);
if (result_entry.get() != NULL)
result_array->Append(result_entry.release());
else
DCHECK(*nested_error);
}
return result_array.Pass();
}
scoped_ptr<base::Value> Mapper::MapEntry(int index,
const OncValueSignature& signature,
const base::Value& onc_value,
bool* error) {
return MapValue(signature, onc_value, error);
}
} // namespace onc
} // namespace chromeos
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