Cumulocity Official / MbedSmartRest

mbed.org implementation of the abstract SmartREST library for the Cumulocity Platform SmartREST protocol.

Dependents:   MbedSmartRestMain MbedSmartRestMain

Aggregator.cpp@0:099f76422485, 2014-07-03 (annotated)

Committer:
Cumulocity
Date:
Thu Jul 03 20:38:04 2014 +0200
Revision:
0:099f76422485
Child:
5:2b74510900da
Updated from revision 0413a0179eb6

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Cumulocity 0:099f76422485 1 /*
Cumulocity 0:099f76422485 2 * Aggregator.cpp
Cumulocity 0:099f76422485 3 *
Cumulocity 0:099f76422485 4 * Created on: Nov 1, 2013
Cumulocity 0:099f76422485 5 * * Authors: Vincent Wochnik <v.wochnik@gmail.com>
Cumulocity 0:099f76422485 6 *
Cumulocity 0:099f76422485 7 * Copyright (c) 2013 Cumulocity GmbH
Cumulocity 0:099f76422485 8 *
Cumulocity 0:099f76422485 9 * Permission is hereby granted, free of charge, to any person obtaining
Cumulocity 0:099f76422485 10 * a copy of this software and associated documentation files (the
Cumulocity 0:099f76422485 11 * "Software"), to deal in the Software without restriction, including
Cumulocity 0:099f76422485 12 * without limitation the rights to use, copy, modify, merge, publish,
Cumulocity 0:099f76422485 13 * distribute, sublicense, and/or sell copies of the Software, and to
Cumulocity 0:099f76422485 14 * permit persons to whom the Software is furnished to do so, subject to
Cumulocity 0:099f76422485 15 * the following conditions:
Cumulocity 0:099f76422485 16 *
Cumulocity 0:099f76422485 17 * The above copyright notice and this permission notice shall be
Cumulocity 0:099f76422485 18 * included in all copies or substantial portions of the Software.
Cumulocity 0:099f76422485 19 *
Cumulocity 0:099f76422485 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Cumulocity 0:099f76422485 21 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Cumulocity 0:099f76422485 22 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Cumulocity 0:099f76422485 23 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
Cumulocity 0:099f76422485 24 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
Cumulocity 0:099f76422485 25 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Cumulocity 0:099f76422485 26 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Cumulocity 0:099f76422485 27 */
Cumulocity 0:099f76422485 28
Cumulocity 0:099f76422485 29 #include "Aggregator.h"
Cumulocity 0:099f76422485 30 #include <stdlib.h>
Cumulocity 0:099f76422485 31
Cumulocity 0:099f76422485 32 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 33 Aggregator::Aggregator(size_t capacity, bool growing, bool copy)
Cumulocity 0:099f76422485 34 {
Cumulocity 0:099f76422485 35 _alloc = copy;
Cumulocity 0:099f76422485 36 _growing = growing;
Cumulocity 0:099f76422485 37 _capacity = 0;
Cumulocity 0:099f76422485 38 _list = NULL;
Cumulocity 0:099f76422485 39 _initial = capacity;
Cumulocity 0:099f76422485 40 _length = 0;
Cumulocity 0:099f76422485 41 }
Cumulocity 0:099f76422485 42 #else
Cumulocity 0:099f76422485 43 Aggregator::Aggregator(bool copy)
Cumulocity 0:099f76422485 44 {
Cumulocity 0:099f76422485 45 _alloc = copy;
Cumulocity 0:099f76422485 46 _length = 0;
Cumulocity 0:099f76422485 47 }
Cumulocity 0:099f76422485 48 #endif
Cumulocity 0:099f76422485 49
Cumulocity 0:099f76422485 50 Aggregator::~Aggregator()
Cumulocity 0:099f76422485 51 {
Cumulocity 0:099f76422485 52 if (_alloc) {
Cumulocity 0:099f76422485 53 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 54 delete _list[n];
Cumulocity 0:099f76422485 55 }
Cumulocity 0:099f76422485 56 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 57 if (_list != NULL)
Cumulocity 0:099f76422485 58 free(_list);
Cumulocity 0:099f76422485 59 #endif
Cumulocity 0:099f76422485 60 }
Cumulocity 0:099f76422485 61
Cumulocity 0:099f76422485 62 bool Aggregator::add(const DataGenerator& generator)
Cumulocity 0:099f76422485 63 {
Cumulocity 0:099f76422485 64 if (this == &generator)
Cumulocity 0:099f76422485 65 return false;
Cumulocity 0:099f76422485 66 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 67 if (_length == _capacity) {
Cumulocity 0:099f76422485 68 size_t capacity;
Cumulocity 0:099f76422485 69
Cumulocity 0:099f76422485 70 if ((!_growing) && (_capacity != 0))
Cumulocity 0:099f76422485 71 return false;
Cumulocity 0:099f76422485 72
Cumulocity 0:099f76422485 73 if (_capacity == 0)
Cumulocity 0:099f76422485 74 capacity = _initial;
Cumulocity 0:099f76422485 75 else
Cumulocity 0:099f76422485 76 capacity = _capacity + SMARTREST_AGGREGATOR_MEMORY_INCREMENT;
Cumulocity 0:099f76422485 77
Cumulocity 0:099f76422485 78 const DataGenerator **list = (const DataGenerator**)realloc(_list,
Cumulocity 0:099f76422485 79 capacity*sizeof(DataGenerator*));
Cumulocity 0:099f76422485 80 if (list == NULL)
Cumulocity 0:099f76422485 81 return false;
Cumulocity 0:099f76422485 82 _list = list;
Cumulocity 0:099f76422485 83 _capacity = capacity;
Cumulocity 0:099f76422485 84 }
Cumulocity 0:099f76422485 85 #else
Cumulocity 0:099f76422485 86 if (_length == SMARTREST_AGGREGATOR_FIXED_SIZE)
Cumulocity 0:099f76422485 87 return false;
Cumulocity 0:099f76422485 88 #endif
Cumulocity 0:099f76422485 89
Cumulocity 0:099f76422485 90 if (_alloc) {
Cumulocity 0:099f76422485 91 DataGenerator *copy = generator.copy();
Cumulocity 0:099f76422485 92 if (copy == NULL)
Cumulocity 0:099f76422485 93 return false;
Cumulocity 0:099f76422485 94 _list[_length++] = copy;
Cumulocity 0:099f76422485 95 } else {
Cumulocity 0:099f76422485 96 _list[_length++] = &generator;
Cumulocity 0:099f76422485 97 }
Cumulocity 0:099f76422485 98 return true;
Cumulocity 0:099f76422485 99 }
Cumulocity 0:099f76422485 100
Cumulocity 0:099f76422485 101 void Aggregator::clear()
Cumulocity 0:099f76422485 102 {
Cumulocity 0:099f76422485 103 if (_alloc) {
Cumulocity 0:099f76422485 104 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 105 delete _list[n];
Cumulocity 0:099f76422485 106 }
Cumulocity 0:099f76422485 107 _length = 0;
Cumulocity 0:099f76422485 108
Cumulocity 0:099f76422485 109 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 110 if (_list != NULL)
Cumulocity 0:099f76422485 111 free(_list);
Cumulocity 0:099f76422485 112 _list = NULL;
Cumulocity 0:099f76422485 113 _capacity = 0;
Cumulocity 0:099f76422485 114 #endif
Cumulocity 0:099f76422485 115 }
Cumulocity 0:099f76422485 116
Cumulocity 0:099f76422485 117 size_t Aggregator::length()
Cumulocity 0:099f76422485 118 {
Cumulocity 0:099f76422485 119 return _length;
Cumulocity 0:099f76422485 120 }
Cumulocity 0:099f76422485 121
Cumulocity 0:099f76422485 122 bool Aggregator::full()
Cumulocity 0:099f76422485 123 {
Cumulocity 0:099f76422485 124 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 125 return (_growing) ? false : (_length == _capacity);
Cumulocity 0:099f76422485 126 #else
Cumulocity 0:099f76422485 127 return (_length == SMARTREST_AGGREGATOR_FIXED_SIZE);
Cumulocity 0:099f76422485 128 #endif
Cumulocity 0:099f76422485 129 }
Cumulocity 0:099f76422485 130
Cumulocity 0:099f76422485 131 size_t Aggregator::capacity()
Cumulocity 0:099f76422485 132 {
Cumulocity 0:099f76422485 133 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 134 return (_growing) ? 0 : _capacity;
Cumulocity 0:099f76422485 135 #else
Cumulocity 0:099f76422485 136 return SMARTREST_AGGREGATOR_FIXED_SIZE;
Cumulocity 0:099f76422485 137 #endif
Cumulocity 0:099f76422485 138 }
Cumulocity 0:099f76422485 139
Cumulocity 0:099f76422485 140 size_t Aggregator::writeTo(AbstractDataSink& sink) const
Cumulocity 0:099f76422485 141 {
Cumulocity 0:099f76422485 142 size_t len = 0;
Cumulocity 0:099f76422485 143 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 144 len += _list[n]->writeTo(sink);
Cumulocity 0:099f76422485 145 return len;
Cumulocity 0:099f76422485 146 }
Cumulocity 0:099f76422485 147
Cumulocity 0:099f76422485 148 size_t Aggregator::writtenLength() const
Cumulocity 0:099f76422485 149 {
Cumulocity 0:099f76422485 150 size_t len = 0;
Cumulocity 0:099f76422485 151 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 152 len += _list[n]->writtenLength();
Cumulocity 0:099f76422485 153 return len;
Cumulocity 0:099f76422485 154 }
Cumulocity 0:099f76422485 155
Cumulocity 0:099f76422485 156 DataGenerator* Aggregator::copy() const
Cumulocity 0:099f76422485 157 {
Cumulocity 0:099f76422485 158 #ifndef SMARTREST_AGGREGATOR_FIXED_SIZE
Cumulocity 0:099f76422485 159 Aggregator *copy = new Aggregator(_length, _growing, true);
Cumulocity 0:099f76422485 160 #else
Cumulocity 0:099f76422485 161 Aggregator *copy = new Aggregator(true);
Cumulocity 0:099f76422485 162 #endif
Cumulocity 0:099f76422485 163 for (size_t n = 0; n < _length; n++)
Cumulocity 0:099f76422485 164 copy->add(*_list[n]);
Cumulocity 0:099f76422485 165 return copy;
Cumulocity 0:099f76422485 166 }
Cumulocity 0:099f76422485 167