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/*
* Copyright (C) 2017 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.
*/
#ifndef AAPT_IO_STRINGSTREAM_H
#define AAPT_IO_STRINGSTREAM_H
#include "io/Io.h"
#include <memory>
#include "android-base/macros.h"
#include "androidfw/StringPiece.h"
namespace aapt {
namespace io {
class StringInputStream : public KnownSizeInputStream {
public:
explicit StringInputStream(const android::StringPiece& str);
bool Next(const void** data, size_t* size) override;
void BackUp(size_t count) override;
size_t ByteCount() const override;
inline bool HadError() const override {
return false;
}
inline std::string GetError() const override {
return {};
}
size_t TotalSize() const override;
private:
DISALLOW_COPY_AND_ASSIGN(StringInputStream);
android::StringPiece str_;
size_t offset_;
};
class StringOutputStream : public OutputStream {
public:
explicit StringOutputStream(std::string* str, size_t buffer_capacity = 4096u);
~StringOutputStream();
bool Next(void** data, size_t* size) override;
void BackUp(size_t count) override;
void Flush();
size_t ByteCount() const override;
inline bool HadError() const override {
return false;
}
inline std::string GetError() const override {
return {};
}
private:
DISALLOW_COPY_AND_ASSIGN(StringOutputStream);
void FlushImpl();
std::string* str_;
size_t buffer_capacity_;
size_t buffer_offset_;
std::unique_ptr<char[]> buffer_;
};
} // namespace io
} // namespace aapt
#endif // AAPT_IO_STRINGSTREAM_H
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