67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef OCEANBAE_LIB_OB_TRUNCATED_STRING_H_
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#define OCEANBAE_LIB_OB_TRUNCATED_STRING_H_
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#include "lib/string/ob_string.h"
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#include "share/config/ob_server_config.h"
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namespace oceanbase
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{
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namespace common
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{
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class ObTruncatedString
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{
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public:
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ObTruncatedString(const ObString &str, const int32_t limit)
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{
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const int32_t len = (limit < str.length()) ? (limit < 0 ? 0 : limit) : str.length();
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str_ = ObString(len, str.ptr());
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}
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explicit ObTruncatedString(const ObString &str)
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{
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const int32_t len = (GCONF.max_string_print_length < str.length()) ?
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static_cast<int32_t>(GCONF.max_string_print_length) : str.length();
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str_ = ObString(len, str.ptr());
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}
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inline int32_t length() const { return str_.length(); }
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inline int32_t size() const { return str_.size(); }
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inline const char *ptr() const { return str_.ptr(); }
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inline const ObString & string() const { return str_; }
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int64_t to_string(char *buf, const int64_t len) const
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{
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int64_t pos = 0;
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if (OB_ISNULL(buf) || len <= 0) {
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// do nothing
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} else {
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pos = str_.to_string(buf, len);
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}
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return pos;
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}
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private:
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ObString str_;
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DISALLOW_COPY_AND_ASSIGN(ObTruncatedString);
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};
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}/* ns common*/
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}/* ns oceanbase */
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#endif // OCEANBAE_LIB_OB_TRUNCATED_STRING_H_
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