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/*
* Copyright (C) 2015 The Android Open Source Project
*
* 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.
*/
#pragma once
#include <map>
#include <set>
#include <vector>
#include <binder/Common.h>
#include <binder/Parcelable.h>
#include <utils/String16.h>
#include <utils/StrongPointer.h>
namespace android {
namespace os {
/*
* C++ implementation of PersistableBundle, a mapping from String values to
* various types that can be saved to persistent and later restored.
*/
class LIBBINDER_EXPORTED PersistableBundle : public Parcelable {
public:
PersistableBundle() = default;
virtual ~PersistableBundle() = default;
PersistableBundle(const PersistableBundle& bundle) = default;
status_t writeToParcel(Parcel* parcel) const override;
status_t readFromParcel(const Parcel* parcel) override;
bool empty() const;
size_t size() const;
size_t erase(const String16& key);
/*
* Setters for PersistableBundle. Adds a a key-value pair instantiated with
* |key| and |value| into the member map appropriate for the type of |value|.
* If there is already an existing value for |key|, |value| will replace it.
*/
void putBoolean(const String16& key, bool value);
void putInt(const String16& key, int32_t value);
void putLong(const String16& key, int64_t value);
void putDouble(const String16& key, double value);
void putString(const String16& key, const String16& value);
void putBooleanVector(const String16& key, const std::vector<bool>& value);
void putIntVector(const String16& key, const std::vector<int32_t>& value);
void putLongVector(const String16& key, const std::vector<int64_t>& value);
void putDoubleVector(const String16& key, const std::vector<double>& value);
void putStringVector(const String16& key, const std::vector<String16>& value);
void putPersistableBundle(const String16& key, const PersistableBundle& value);
/*
* Getters for PersistableBundle. If |key| exists, these methods write the
* value associated with |key| into |out|, and return true. Otherwise, these
* methods return false.
*/
bool getBoolean(const String16& key, bool* out) const;
bool getInt(const String16& key, int32_t* out) const;
bool getLong(const String16& key, int64_t* out) const;
bool getDouble(const String16& key, double* out) const;
bool getString(const String16& key, String16* out) const;
bool getBooleanVector(const String16& key, std::vector<bool>* out) const;
bool getIntVector(const String16& key, std::vector<int32_t>* out) const;
bool getLongVector(const String16& key, std::vector<int64_t>* out) const;
bool getDoubleVector(const String16& key, std::vector<double>* out) const;
bool getStringVector(const String16& key, std::vector<String16>* out) const;
bool getPersistableBundle(const String16& key, PersistableBundle* out) const;
/* Getters for all keys for each value type */
std::set<String16> getBooleanKeys() const;
std::set<String16> getIntKeys() const;
std::set<String16> getLongKeys() const;
std::set<String16> getDoubleKeys() const;
std::set<String16> getStringKeys() const;
std::set<String16> getBooleanVectorKeys() const;
std::set<String16> getIntVectorKeys() const;
std::set<String16> getLongVectorKeys() const;
std::set<String16> getDoubleVectorKeys() const;
std::set<String16> getStringVectorKeys() const;
std::set<String16> getPersistableBundleKeys() const;
friend bool operator==(const PersistableBundle& lhs, const PersistableBundle& rhs) {
return (lhs.mBoolMap == rhs.mBoolMap && lhs.mIntMap == rhs.mIntMap &&
lhs.mLongMap == rhs.mLongMap && lhs.mDoubleMap == rhs.mDoubleMap &&
lhs.mStringMap == rhs.mStringMap && lhs.mBoolVectorMap == rhs.mBoolVectorMap &&
lhs.mIntVectorMap == rhs.mIntVectorMap &&
lhs.mLongVectorMap == rhs.mLongVectorMap &&
lhs.mDoubleVectorMap == rhs.mDoubleVectorMap &&
lhs.mStringVectorMap == rhs.mStringVectorMap &&
lhs.mPersistableBundleMap == rhs.mPersistableBundleMap);
}
friend bool operator!=(const PersistableBundle& lhs, const PersistableBundle& rhs) {
return !(lhs == rhs);
}
private:
status_t writeToParcelInner(Parcel* parcel) const;
status_t readFromParcelInner(const Parcel* parcel, size_t length);
std::map<String16, bool> mBoolMap;
std::map<String16, int32_t> mIntMap;
std::map<String16, int64_t> mLongMap;
std::map<String16, double> mDoubleMap;
std::map<String16, String16> mStringMap;
std::map<String16, std::vector<bool>> mBoolVectorMap;
std::map<String16, std::vector<int32_t>> mIntVectorMap;
std::map<String16, std::vector<int64_t>> mLongVectorMap;
std::map<String16, std::vector<double>> mDoubleVectorMap;
std::map<String16, std::vector<String16>> mStringVectorMap;
std::map<String16, PersistableBundle> mPersistableBundleMap;
};
} // namespace os
} // namespace android
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