1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
#include "uscxml/Common.h"
#include "uscxml/config.h"
#include "SWIDataModel.h"
#include "uscxml/Message.h"
#include <glog/logging.h>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool connect(pluma::Host& host) {
host.add( new SWIDataModelProvider() );
return true;
}
#endif
SWIDataModel::SWIDataModel() {
}
boost::shared_ptr<DataModelImpl> SWIDataModel::create(InterpreterImpl* interpreter) {
boost::shared_ptr<SWIDataModel> dm = boost::shared_ptr<SWIDataModel>(new SWIDataModel());
dm->_interpreter = interpreter;
const char* swibin = getenv("SWI_BINARY");
if (swibin == NULL)
swibin = SWI_BINARY;
const char* quiet = "--quiet";
static char * av[] = {
(char*)swibin,
(char*)quiet,
// "-s",
// "/Users/sradomski/Documents/TK/Code/pl-devel/demo/likes.pl",
NULL
};
if(!PL_initialise(2,av)) {
LOG(ERROR) << "Error intializing prolog engine";
PL_halt(1);
return boost::shared_ptr<DataModelImpl>();
}
// load SWI XML parser
PlCall("use_module", PlCompound("library", PlTerm("sgml")));
PlCall("assert", PlCompound("sessionId", PlTerm(PlString(dm->_interpreter->getSessionId().c_str()))));
PlCall("assert", PlCompound("name", PlTerm(PlString(dm->_interpreter->getName().c_str()))));
PlCall("assert(eventName(X) :- event(Y,_), arg(1, Y, X)).");
return dm;
}
void SWIDataModel::registerIOProcessor(const std::string& name, const IOProcessor& ioprocessor) {
// std::cout << "SWIDataModel::registerIOProcessor" << std::endl;
}
void SWIDataModel::setSessionId(const std::string& sessionId) {
// std::cout << "SWIDataModel::setSessionId" << std::endl;
_sessionId = sessionId;
}
void SWIDataModel::setName(const std::string& name) {
// std::cout << "SWIDataModel::setName" << std::endl;
_name = name;
}
SWIDataModel::~SWIDataModel() {
}
void SWIDataModel::pushContext() {
// std::cout << "SWIDataModel::pushContext" << std::endl;
}
void SWIDataModel::popContext() {
// std::cout << "SWIDataModel::popContext" << std::endl;
}
void SWIDataModel::initialize() {
// std::cout << "SWIDataModel::initialize" << std::endl;
}
void SWIDataModel::setEvent(const Event& event) {
// remove old event
PlCall("system", "retractall", PlTermv("event"));
PlTermv plEvent(7);
plEvent[0] = PlCompound("name", PlTerm(PlString(event.name.c_str())));
plEvent[1] = PlCompound("raw", PlTerm(PlString(event.raw.c_str())));
plEvent[2] = PlCompound("origin", PlTerm(PlString(event.origin.c_str())));
plEvent[3] = PlCompound("origintype", PlTerm(PlString(event.origintype.c_str())));
plEvent[4] = PlCompound("data", PlTerm(PlString(event.content.c_str())));
Event::params_t::const_iterator paramIter;
// count unique keys in params
paramIter = event.params.begin();
size_t uniqueKeys = 0;
while(paramIter != event.params.end()) {
uniqueKeys++;
paramIter = event.params.upper_bound(paramIter->first);
}
// create a compund for every unique key
PlTermv paramTerm(uniqueKeys);
paramIter = event.params.begin();
for(int i = 0; paramIter != event.params.end(); i++) {
Event::params_t::const_iterator lastValueIter = event.params.upper_bound(paramIter->first);
size_t items = event.params.count(paramIter->first);
PlTermv keyTerm(items);
for (int j = 0; paramIter != lastValueIter; j++) {
keyTerm[j] = PlString(paramIter->second.c_str());
paramIter++;
}
paramTerm[i] = PlCompound(paramIter->first.c_str(), keyTerm);
paramIter = lastValueIter;
}
plEvent[5] = PlCompound("params", paramTerm);
PlTerm type;
switch (event.type) {
case Event::PLATFORM:
type = "platform";
break;
case Event::INTERNAL:
type = "internal";
break;
case Event::EXTERNAL:
type = "external";
break;
}
plEvent[6] = PlCompound("type", type);
PlCall("assert", PlCompound("event", plEvent));
}
Data SWIDataModel::getStringAsData(const std::string& content) {
// std::cout << "SWIDataModel::getStringAsData" << std::endl;
Data data;
return data;
}
bool SWIDataModel::validate(const std::string& location, const std::string& schema) {
// std::cout << "SWIDataModel::validate" << std::endl;
return true;
}
uint32_t SWIDataModel::getLength(const std::string& expr) {
// std::cout << "SWIDataModel::getLength" << std::endl;
return 0;
}
void SWIDataModel::setForeach(const std::string& item,
const std::string& array,
const std::string& index,
uint32_t iteration) {
// std::cout << "SWIDataModel::setForeach" << std::endl;
}
void SWIDataModel::eval(const std::string& expr) {
URL localPLFile = URL::toLocalFile(expr, ".pl");
PlCall("user", "load_files", PlTermv(localPLFile.asLocalFile(".pl").c_str())) || LOG(ERROR) << "Could not execute prolog from file";
}
bool SWIDataModel::evalAsBool(const std::string& expr) {
PlCompound compound(expr.c_str());
PlTermv termv(compound.arity());
for (int i = 0; i < compound.arity(); i++) {
termv[i] = compound[i + 1];
}
PlQuery query(compound.name(), termv);
return query.next_solution() > 0;
}
std::string SWIDataModel::evalAsString(const std::string& expr) {
PlCompound compound(expr.c_str());
if (strlen(compound.name())) {
PlTermv termv(compound.arity());
for (int i = 0; i < compound.arity(); i++) {
termv[i] = compound[i + 1];
}
PlQuery query(compound.name(), termv);
std::stringstream ss;
const char* separator = "";
while (query.next_solution()) {
for (int i = 0; i < compound.arity(); i++) {
ss << separator << (char *)termv[i];
separator = ", ";
}
}
return ss.str();
}
return std::string(compound);
}
void SWIDataModel::assign(const Arabica::DOM::Element<std::string>& assignElem,
const Arabica::DOM::Document<std::string>& doc,
const std::string& content) {
std::string expr = content;
if (HAS_ATTR(assignElem, "expr")) {
expr = ATTR(assignElem, "expr");
}
if (expr.length() > 0)
eval(expr);
}
void SWIDataModel::assign(const std::string& location, const Data& data) {
eval(data.atom);
}
void SWIDataModel::init(const Arabica::DOM::Element<std::string>& dataElem,
const Arabica::DOM::Document<std::string>& doc,
const std::string& content) {
std::string key;
if (HAS_ATTR(dataElem, "id")) {
key = ATTR(dataElem, "id");
} else if (HAS_ATTR(dataElem, "location")) {
key = ATTR(dataElem, "location");
}
assign(dataElem, doc, content);
}
void SWIDataModel::init(const std::string& location, const Data& data) {}
bool SWIDataModel::isDeclared(const std::string& expr) {
return true;
}
}
|
