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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 "chrome/browser/value_store/policy_value_store.h"
#include "base/logging.h"
using base::DictionaryValue;
using base::Value;
namespace {
const char kReadOnlyStoreErrorMessage[] = "This is a read-only store.";
ValueStore::WriteResult WriteResultError() {
return ValueStore::MakeWriteResult(kReadOnlyStoreErrorMessage);
}
} // namespace
PolicyValueStore::PolicyValueStore(const policy::PolicyMap* policy_map)
: policy_map_(policy_map) {}
PolicyValueStore::~PolicyValueStore() {}
size_t PolicyValueStore::GetBytesInUse(const std::string& key) {
// This store doesn't use any real storage.
return 0;
}
size_t PolicyValueStore::GetBytesInUse(const std::vector<std::string>& keys) {
// This store doesn't use any real storage.
return 0;
}
size_t PolicyValueStore::GetBytesInUse() {
// This store doesn't use any real storage.
return 0;
}
ValueStore::ReadResult PolicyValueStore::Get(const std::string& key) {
DictionaryValue* result = new DictionaryValue();
AddEntryIfMandatory(result, key, policy_map_->Get(key));
return MakeReadResult(result);
}
ValueStore::ReadResult PolicyValueStore::Get(
const std::vector<std::string>& keys) {
DictionaryValue* result = new DictionaryValue();
for (std::vector<std::string>::const_iterator it = keys.begin();
it != keys.end(); ++it) {
AddEntryIfMandatory(result, *it, policy_map_->Get(*it));
}
return MakeReadResult(result);
}
ValueStore::ReadResult PolicyValueStore::Get() {
DictionaryValue* result = new DictionaryValue();
for (policy::PolicyMap::const_iterator it = policy_map_->begin();
it != policy_map_->end(); ++it) {
AddEntryIfMandatory(result, it->first, &it->second);
}
return MakeReadResult(result);
}
ValueStore::WriteResult PolicyValueStore::Set(
WriteOptions options, const std::string& key, const Value& value) {
return WriteResultError();
}
ValueStore::WriteResult PolicyValueStore::Set(
WriteOptions options, const DictionaryValue& settings) {
return WriteResultError();
}
ValueStore::WriteResult PolicyValueStore::Remove(const std::string& key) {
return WriteResultError();
}
ValueStore::WriteResult PolicyValueStore::Remove(
const std::vector<std::string>& keys) {
return WriteResultError();
}
ValueStore::WriteResult PolicyValueStore::Clear() {
return WriteResultError();
}
void PolicyValueStore::AddEntryIfMandatory(
DictionaryValue* result,
const std::string& key,
const policy::PolicyMap::Entry* entry) {
// TODO(joaodasilva): only mandatory policies are exposed for now.
// Add support for recommended policies later. http://crbug.com/108992
if (!entry || entry->level != policy::POLICY_LEVEL_MANDATORY)
return;
result->SetWithoutPathExpansion(key, entry->value->DeepCopy());
}
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