[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | #ifndef HADOOP_STRING_UTILS_HH |
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| 19 | #define HADOOP_STRING_UTILS_HH |
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| 20 | |
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| 21 | #include <stdint.h> |
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| 22 | #include <string> |
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| 23 | #include <vector> |
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| 24 | |
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| 25 | namespace HadoopUtils { |
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| 26 | |
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| 27 | /** |
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| 28 | * Convert an integer to a string. |
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| 29 | */ |
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| 30 | std::string toString(int32_t x); |
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| 31 | |
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| 32 | /** |
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| 33 | * Convert a string to an integer. |
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| 34 | * @throws Error if the string is not a valid integer |
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| 35 | */ |
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| 36 | int32_t toInt(const std::string& val); |
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| 37 | |
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| 38 | /** |
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| 39 | * Convert the string to a float. |
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| 40 | * @throws Error if the string is not a valid float |
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| 41 | */ |
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| 42 | float toFloat(const std::string& val); |
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| 43 | |
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| 44 | /** |
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| 45 | * Convert the string to a boolean. |
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| 46 | * @throws Error if the string is not a valid boolean value |
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| 47 | */ |
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| 48 | bool toBool(const std::string& val); |
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| 49 | |
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| 50 | /** |
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| 51 | * Get the current time in the number of milliseconds since 1970. |
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| 52 | */ |
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| 53 | uint64_t getCurrentMillis(); |
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| 54 | |
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| 55 | /** |
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| 56 | * Split a string into "words". Multiple deliminators are treated as a single |
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| 57 | * word break, so no zero-length words are returned. |
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| 58 | * @param str the string to split |
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| 59 | * @param separator a list of characters that divide words |
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| 60 | */ |
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| 61 | std::vector<std::string> splitString(const std::string& str, |
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| 62 | const char* separator); |
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| 63 | |
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| 64 | /** |
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| 65 | * Quote a string to avoid "\", non-printable characters, and the |
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| 66 | * deliminators. |
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| 67 | * @param str the string to quote |
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| 68 | * @param deliminators the set of characters to always quote |
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| 69 | */ |
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| 70 | std::string quoteString(const std::string& str, |
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| 71 | const char* deliminators); |
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| 72 | |
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| 73 | /** |
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| 74 | * Unquote the given string to return the original string. |
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| 75 | * @param str the string to unquote |
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| 76 | */ |
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| 77 | std::string unquoteString(const std::string& str); |
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| 78 | |
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| 79 | } |
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| 80 | |
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| 81 | #endif |
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