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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_FORMAT_CONTAINER_H
#define AAPT_FORMAT_CONTAINER_H
#include <inttypes.h>
#include "google/protobuf/io/coded_stream.h"
#include "google/protobuf/io/zero_copy_stream.h"
#include "Resources.pb.h"
#include "ResourcesInternal.pb.h"
#include "io/Io.h"
#include "io/Util.h"
#include "util/BigBuffer.h"
namespace aapt {
enum ContainerEntryType : uint8_t {
kResTable = 0x00u,
kResFile = 0x01u,
};
class ContainerWriter {
public:
explicit ContainerWriter(::google::protobuf::io::ZeroCopyOutputStream* out, size_t entry_count);
bool AddResTableEntry(const pb::ResourceTable& table);
bool AddResFileEntry(const pb::internal::CompiledFile& file, io::KnownSizeInputStream* in);
bool HadError() const;
std::string GetError() const;
private:
DISALLOW_COPY_AND_ASSIGN(ContainerWriter);
::google::protobuf::io::ZeroCopyOutputStream* out_;
size_t total_entry_count_;
size_t current_entry_count_;
std::string error_;
};
class ContainerReader;
class ContainerReaderEntry {
public:
ContainerEntryType Type() const;
bool GetResTable(pb::ResourceTable* out_table);
bool GetResFileOffsets(pb::internal::CompiledFile* out_file, off64_t* out_offset,
size_t* out_len);
bool HadError() const;
std::string GetError() const;
private:
DISALLOW_COPY_AND_ASSIGN(ContainerReaderEntry);
friend class ContainerReader;
explicit ContainerReaderEntry(ContainerReader* reader);
ContainerReader* reader_;
ContainerEntryType type_ = ContainerEntryType::kResTable;
size_t length_ = 0u;
};
class ContainerReader {
public:
explicit ContainerReader(io::InputStream* in);
ContainerReaderEntry* Next();
bool HadError() const;
std::string GetError() const;
private:
DISALLOW_COPY_AND_ASSIGN(ContainerReader);
friend class ContainerReaderEntry;
io::InputStream* in_;
io::ZeroCopyInputAdaptor adaptor_;
::google::protobuf::io::CodedInputStream coded_in_;
size_t total_entry_count_;
size_t current_entry_count_;
ContainerReaderEntry entry_;
std::string error_;
};
} // namespace aapt
#endif /* AAPT_FORMAT_CONTAINER_H */
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