6c6380969b
1. replace all boost::shared_ptr to std::shared_ptr 2. replace all boost::scopted_ptr to std::unique_ptr 3. replace all boost::scoped_array to std::unique<T[]> 4. replace all boost:thread to std::thread
70 lines
2.4 KiB
C++
70 lines
2.4 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <map>
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#include <string>
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#include "exec/file_reader.h"
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#include "util/s3_uri.h"
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namespace Aws {
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namespace S3 {
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class S3Client;
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}
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} // namespace Aws
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namespace doris {
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class S3Reader : public FileReader {
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public:
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S3Reader(const std::map<std::string, std::string>& properties, const std::string& path,
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int64_t start_offset);
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~S3Reader();
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virtual Status open() override;
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// Read content to 'buf', 'buf_len' is the max size of this buffer.
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// Return ok when read success, and 'buf_len' is set to size of read content
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// If reach to end of file, the eof is set to true. meanwhile 'buf_len'
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// is set to zero.
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virtual Status read(uint8_t* buf, int64_t buf_len, int64_t* bytes_read, bool* eof) override;
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virtual Status readat(int64_t position, int64_t nbytes, int64_t* bytes_read,
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void* out) override;
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/**
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* This interface is used read a whole message, For example: read a message from kafka.
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*
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* if read eof then return Status::OK and length is set 0 and buf is set nullptr,
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* other return readed bytes.
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*/
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virtual Status read_one_message(std::unique_ptr<uint8_t[]>* buf, int64_t* length) override;
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virtual int64_t size() override;
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virtual Status seek(int64_t position) override;
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virtual Status tell(int64_t* position) override;
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virtual void close() override;
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virtual bool closed() override;
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private:
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const std::map<std::string, std::string>& _properties;
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std::string _path;
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S3URI _uri;
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int64_t _cur_offset;
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int64_t _file_size;
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bool _closed;
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std::shared_ptr<Aws::S3::S3Client> _client;
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};
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} // end namespace doris
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