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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326
|
// This file may be redistributed and modified only under the terms of
// the GNU Lesser General Public License (See COPYING for details).
// Copyright (C) 2000-2001 Stefanus Du Toit and Aloril
#include <Atlas/Objects/BaseObject.h>
using Atlas::Message::Element;
using Atlas::Message::MapType;
namespace Atlas { namespace Objects {
NoSuchAttrException::~NoSuchAttrException() throw ()
{
}
BaseObjectData::~BaseObjectData()
{
assert( m_refCount==0 );
}
bool BaseObjectData::instanceOf(int classNo) const
{
return BASE_OBJECT_NO == classNo;
}
bool BaseObjectData::hasAttr(const std::string& name) const
{
int flag = getAttrFlag(name);
if (flag >= 0) {
return m_attrFlags & flag;
} else {
return (m_attributes.find(name) != m_attributes.end());
}
}
bool BaseObjectData::hasAttrFlag(int flag) const
{
return m_attrFlags & flag;
}
const Element BaseObjectData::getAttr(const std::string& name) const
throw (NoSuchAttrException)
{
Element attr;
if (copyAttr(name, attr) != 0) {
throw NoSuchAttrException(name);
}
return attr;
}
int BaseObjectData::copyAttr(const std::string& name, Element & attr) const
{
MapType::const_iterator I = m_attributes.find(name);
if (I == m_attributes.end()) {
return -1;
};
attr = I->second;
return 0;
}
void BaseObjectData::setAttr(const std::string& name, const Element& attr)
{
m_attributes[name] = attr;
}
void BaseObjectData::removeAttr(const std::string& name)
{
m_attributes.erase(name);
}
const MapType BaseObjectData::asMessage() const
{
MapType m;
addToMessage(m);
return m;
}
void BaseObjectData::addToMessage(MapType & m) const
{
typedef MapType::const_iterator Iter;
for (Iter I = m_attributes.begin(); I != m_attributes.end(); I++) {
m[I->first] = I->second;
}
}
void BaseObjectData::sendContents(Bridge & b) const
{
Message::Encoder e(b);
typedef MapType::const_iterator Iter;
for (Iter I = m_attributes.begin(); I != m_attributes.end(); I++) {
e.mapElementItem((*I).first, (*I).second);
}
}
int BaseObjectData::getAttrClass(const std::string& name) const
{
return -1;
}
int BaseObjectData::getAttrFlag(const std::string& name) const
{
return -1;
}
void BaseObjectData::iterate(int& current_class, std::string& attr) const
{
// m_attributes is handled separately, and we have no other attributes,
// so we set the iterator to be at the end of the attributes
current_class = BASE_OBJECT_NO;
attr = "";
}
BaseObjectData::iterator::iterator(BaseObjectData& obj, int current_class)
: m_obj(&obj), m_current_class(current_class), m_val("", *this)
{
// invalid argument means start at the top
m_I = (current_class < 0) ? m_obj->m_attributes.begin() : m_obj->m_attributes.end();
// could have m_attributes.begin() == m_attributes.end(), need to check
if(m_I != m_obj->m_attributes.end())
m_val.first = m_I->first;
else
m_obj->iterate(m_current_class, m_val.first); // get first named attribute
}
// don't set m_val.second
BaseObjectData::iterator& BaseObjectData::iterator::operator=(const iterator& I)
{
m_obj = I.m_obj;
m_current_class = I.m_current_class;
m_I = I.m_I;
m_val.first = I.m_val.first;
return *this;
}
// We go through the attributes in the top class
// first and work our way down, since the virtual iterate() function
// works that way.
BaseObjectData::iterator& BaseObjectData::iterator::operator++() // preincrement
{
if(!m_obj)
return *this;
// Since we start with the top class first,
// we always want attributes that are not
// named in a particular class to come before
// those that are. The attributes in m_attributes
// are not named in any class, so they come first
if(m_I != m_obj->m_attributes.end()) {
++m_I;
if(m_I != m_obj->m_attributes.end()) {
m_val.first = m_I->first;
return *this;
}
// end of m_attributes, clear m_val.first so we can start on the rest
m_val.first = "";
}
// we're through m_attributes, so we go on to the named
// attributes in the classes
m_obj->iterate(m_current_class, m_val.first);
return *this;
}
bool BaseObjectData::iterator::operator==(const iterator& I) const
{
if(m_obj != I.m_obj)
return false;
if(m_obj == 0) // ignore other arguments
return true;
if(m_I != I.m_I)
return false;
if(m_I != m_obj->m_attributes.end()) // ignore other arguments
return true;
assert(m_current_class >= 0); // we must be in the class arguments by now
return m_current_class == I.m_current_class && m_val.first == I.m_val.first;
}
// FIXME figure out some way to use m_current_class to keep from
// having to call the virtual getAttr()/setAttr() in the toplevel class
BaseObjectData::iterator::PsuedoElement::operator Message::Element() const
{
return (m_I.m_I != m_I.m_obj->m_attributes.end()) ?
m_I.m_I->second : m_I.m_obj->getAttr(m_I.m_val.first);
}
const BaseObjectData::iterator::PsuedoElement& BaseObjectData::iterator::PsuedoElement::operator=(const Message::Element& val) const
{
if(m_I.m_I != m_I.m_obj->m_attributes.end())
m_I.m_I->second = val;
else
m_I.m_obj->setAttr(m_I.m_val.first, val);
return *this;
}
BaseObjectData::const_iterator::const_iterator(const BaseObjectData& obj,
int current_class)
: m_obj(&obj), m_current_class(current_class), m_val("", *this)
{
// invalid argument means start at the top
m_I = (current_class < 0) ? m_obj->m_attributes.begin() : m_obj->m_attributes.end();
// could have m_attributes.begin() == m_attributes.end(), need to check
if(m_I != m_obj->m_attributes.end())
m_val.first = m_I->first;
else
m_obj->iterate(m_current_class, m_val.first); // get first named attribute
}
// don't set m_val.second
BaseObjectData::const_iterator& BaseObjectData::const_iterator::operator=(const const_iterator& I)
{
m_obj = I.m_obj;
m_current_class = I.m_current_class;
m_I = I.m_I;
m_val.first = I.m_val.first;
return *this;
}
// We go through the attributes in the top class
// first and work our way down, since the virtual iterate() function
// works that way.
BaseObjectData::const_iterator& BaseObjectData::const_iterator::operator++() // preincrement
{
if(!m_obj)
return *this;
// Since we start with the top class first,
// we always want attributes that are not
// named in a particular class to come before
// those that are. The attributes in m_attributes
// are not named in any class, so they come first
if(m_I != m_obj->m_attributes.end()) {
++m_I;
if(m_I != m_obj->m_attributes.end()) {
m_val.first = m_I->first;
return *this;
}
// end of m_attributes, clear m_val.first so we can start on the rest
m_val.first = "";
}
// we're through m_attributes, so we go on to the named
// attributes in the classes
m_obj->iterate(m_current_class, m_val.first);
return *this;
}
bool BaseObjectData::const_iterator::operator==(const const_iterator& I) const
{
if(m_obj != I.m_obj)
return false;
if(m_obj == 0) // ignore other arguments
return true;
if(m_I != I.m_I)
return false;
if(m_I != m_obj->m_attributes.end()) // ignore other arguments
return true;
assert(m_current_class >= 0); // we must be in the class arguments by now
return m_current_class == I.m_current_class && m_val.first == I.m_val.first;
}
// FIXME figure out some way to use m_current_class to keep from
// having to call the virtual getAttr()/setAttr() in the toplevel class
BaseObjectData::const_iterator::PsuedoElement::operator Message::Element() const
{
return (m_I.m_I != m_I.m_obj->m_attributes.end()) ?
m_I.m_I->second : m_I.m_obj->getAttr(m_I.m_val.first);
}
BaseObjectData::iterator BaseObjectData::find(const std::string& name)
{
iterator I;
I.m_obj = this;
I.m_val.first = name;
I.m_I = m_attributes.find(name);
if (I.m_I != m_attributes.end())
I.m_current_class = -1;
else {
I.m_current_class = getAttrClass(name);
if(I.m_current_class < 0) { // no such attribute
I.m_current_class = BASE_OBJECT_NO;
I.m_val.first = "";
}
}
return I;
}
BaseObjectData::const_iterator BaseObjectData::find(const std::string& name) const
{
const_iterator I;
I.m_obj = this;
I.m_val.first = name;
I.m_I = m_attributes.find(name);
if (I.m_I != m_attributes.end())
I.m_current_class = -1;
else {
I.m_current_class = getAttrClass(name);
if(I.m_current_class < 0) { // no such attribute
I.m_current_class = BASE_OBJECT_NO;
I.m_val.first = "";
}
}
return I;
}
} } // namespace Atlas::Objects
|