JSBSim Flight Dynamics Model  1.1.11 (13 Feb 2022)
An Open Source Flight Dynamics and Control Software Library in C++
FGDistributor.cpp
1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
2 
3  Module: FGDistributor.cpp
4  Author: Jon S. Berndt
5  Date started: 9/2013
6 
7  ------------- Copyright (C) 2013 -------------
8 
9  This program is free software; you can redistribute it and/or modify it under
10  the terms of the GNU Lesser General Public License as published by the Free
11  Software Foundation; either version 2 of the License, or (at your option) any
12  later version.
13 
14  This program is distributed in the hope that it will be useful, but WITHOUT
15  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16  FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
17  details.
18 
19  You should have received a copy of the GNU Lesser General Public License along
20  with this program; if not, write to the Free Software Foundation, Inc., 59
21  Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 
23  Further information about the GNU Lesser General Public License can also be
24  found on the world wide web at http://www.gnu.org.
25 
26 FUNCTIONAL DESCRIPTION
27 --------------------------------------------------------------------------------
28 
29 HISTORY
30 --------------------------------------------------------------------------------
31 
32 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
33 COMMENTS, REFERENCES, and NOTES
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35 
36 Also, see the header file (FGDistributor.h) for further details.
37 
38 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
39 INCLUDES
40 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
41 
42 #include "FGDistributor.h"
43 
44 using namespace std;
45 
46 namespace JSBSim {
47 
48 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
49 CLASS IMPLEMENTATION
50 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
51 
52 FGDistributor::FGDistributor(FGFCS* fcs, Element* element)
53  : FGFCSComponent(fcs, element)
54 {
55  bind(element); // Bind() this component here in case it is used in its own
56  // definition for a sample-and-hold
57 
58  string type_string = element->GetAttributeValue("type");
59  if (type_string == "inclusive") Type = eInclusive;
60  else if (type_string == "exclusive") Type = eExclusive;
61  else {
62  throw("Not a known Distributor type, "+type_string);
63  }
64 
65  Element* case_element = element->FindElement("case");
66  while (case_element) {
67  Case* current_case = new Case;
68  Element* test_element = case_element->FindElement("test");
69  if (test_element) current_case->SetTest(new FGCondition(test_element, PropertyManager));
70  Element* prop_val_element = case_element->FindElement("property");
71  while (prop_val_element) {
72  string value_string = prop_val_element->GetAttributeValue("value");
73  string property_string = prop_val_element->GetDataLine();
74  current_case->AddPropValPair(new PropValPair(property_string, value_string, PropertyManager));
75  prop_val_element = case_element->FindNextElement("property");
76  }
77  Cases.push_back(current_case);
78  case_element = element->FindNextElement("case");
79  }
80 
81  Debug(0);
82 }
83 
84 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
85 
87 {
88  for (auto Case: Cases) delete Case;
89  Debug(1);
90 }
91 
92 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
93 
94 bool FGDistributor::Run(void )
95 {
96  bool completed = false;
97  for (auto Case: Cases) { // Loop through all Cases
98  if (Case->HasTest()) {
99  if (Case->GetTestResult() && !((Type == eExclusive) && completed)) {
100  Case->SetPropValPairs();
101  completed = true;
102  }
103  } else { // If no test present, execute always
104  Case->SetPropValPairs();
105  }
106  }
107 
108  return true;
109 }
110 
111 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
112 // The bitmasked value choices are as follows:
113 // unset: In this case (the default) JSBSim would only print
114 // out the normally expected messages, essentially echoing
115 // the config files as they are read. If the environment
116 // variable is not set, debug_lvl is set to 1 internally
117 // 0: This requests JSBSim not to output any messages
118 // whatsoever.
119 // 1: This value explicity requests the normal JSBSim
120 // startup messages
121 // 2: This value asks for a message to be printed out when
122 // a class is instantiated
123 // 4: When this value is set, a message is displayed when a
124 // FGModel object executes its Run() method
125 // 8: When this value is set, various runtime state variables
126 // are printed out periodically
127 // 16: When set various parameters are sanity checked and
128 // a message is printed out when they go out of bounds
129 
130 void FGDistributor::Debug(int from)
131 {
132  if (debug_lvl <= 0) return;
133 
134  if (debug_lvl & 1) { // Standard console startup message output
135  if (from == 0) { // Constructor
136  unsigned int ctr=0;
137  for (auto Case: Cases) {
138  std::cout << " Case: " << ctr << endl;
139  if (Case->HasTest()) {
140  Case->GetTest()->PrintCondition(" ");
141  } else {
142  std::cout << " Set these properties by default: " << std::endl;
143  }
144  std::cout << std::endl;
145  for (auto propVal = Case->IterPropValPairs(); propVal != Case->EndPropValPairs(); ++propVal) {
146  std::cout << " Set property " << (*propVal)->GetPropName();
147  if ((*propVal)->GetLateBoundProp()) std::cout << " (late bound)";
148  std::cout << " to " << (*propVal)->GetValString();
149  if ((*propVal)->GetLateBoundValue()) std::cout << " (late bound)";
150  std::cout << std::endl;
151  }
152  ctr++;
153  }
154  }
155  }
156  if (debug_lvl & 2 ) { // Instantiation/Destruction notification
157  if (from == 0) cout << "Instantiated: FGDistributor" << endl;
158  if (from == 1) cout << "Destroyed: FGDistributor" << endl;
159  }
160  if (debug_lvl & 4 ) { // Run() method entry print for FGModel-derived objects
161  }
162  if (debug_lvl & 8 ) { // Runtime state variables
163  }
164  if (debug_lvl & 16) { // Sanity checking
165  }
166  if (debug_lvl & 64) {
167  if (from == 0) { // Constructor
168  }
169  }
170 }
171 
172 } //namespace JSBSim
JSBSim::Element::GetAttributeValue
std::string GetAttributeValue(const std::string &key)
Retrieves an attribute.
Definition: FGXMLElement.cpp:260
JSBSim::FGDistributor::~FGDistributor
~FGDistributor()
Destructor.
Definition: FGDistributor.cpp:86
JSBSim::Element::FindElement
Element * FindElement(const std::string &el="")
Searches for a specified element.
Definition: FGXMLElement.cpp:389
JSBSim::FGFCSComponent
Base class for JSBSim Flight Control System Components.
Definition: FGFCSComponent.h:84
JSBSim::Element::GetDataLine
std::string GetDataLine(unsigned int i=0)
Gets a line of data belonging to an element.
Definition: FGXMLElement.cpp:333
JSBSim::FGFCS
Encapsulates the Flight Control System (FCS) functionality.
Definition: FGFCS.h:187
JSBSim::FGDistributor::Run
bool Run(void) override
Executes the distributor logic.
Definition: FGDistributor.cpp:94
JSBSim::Element::FindNextElement
Element * FindNextElement(const std::string &el="")
Searches for the next element as specified.
Definition: FGXMLElement.cpp:407
JSBSim::FGCondition
Encapsulates a condition, which is used in parts of JSBSim including switches.
Definition: FGCondition.h:66
JSBSim::Element
Definition: FGXMLElement.h:143