AOSContext::ReturnCode AOSOutput_JSON::execute(AOSContext& context)
{
AXmlElement::CONST_CONTAINER paths;
AXmlElement::CONST_CONTAINER nodes;
if (context.getOutputParams().find(AOS_BaseModules_Constants::PATH, paths))
{
// Get the path fragments and convert into nodes
for (AXmlElement::CONST_CONTAINER::const_iterator cit = paths.begin(); cit != paths.end(); ++cit)
{
// Get path and find associated nodes
AString path;
(*cit)->emitContent(path);
context.useModel().find(path, nodes);
}
}
if (nodes.size() > 0)
{
if (nodes.size() > 1)
{
// Array
context.useOutputBuffer().append("[\r\n",3);
AXmlElement::CONST_CONTAINER::const_iterator cit = nodes.begin();
while(cit != nodes.end())
{
(*cit)->emitJson(context.useOutputBuffer(),1);
++cit;
if (cit != nodes.end())
context.useOutputBuffer().append("\r\n,\r\n",5);
}
context.useOutputBuffer().append("\r\n]",3);
}
else
{
// Single object
nodes.front()->emitJson(context.useOutputBuffer(),0);
}
}
else
{
// Entire context model to JSON
if (context.useEventVisitor().isLoggingDebug())
{
context.useEventVisitor().addEvent(ASWNL("Emitting the entire model as JSON object"), AEventVisitor::EL_DEBUG);
}
context.useModel().emitJson(context.useOutputBuffer(),0);
}
// Set the correct content type for XML extension
m_Services.useConfiguration().setMimeTypeFromExt(ASW("json",4), context);
return AOSContext::RETURN_OK;
}
size_t AXmlElement::_const_find(LIST_AString listPath, AXmlElement::CONST_CONTAINER& result) const
{
if (isNameEquals(listPath.front()))
{
listPath.pop_front();
size_t ret = 0;
switch(listPath.size())
{
case 0:
//a_This node is it
result.push_back(this);
++ret;
break;
case 1:
{
//a_Include immediate children nodes
CONTAINER::const_iterator cit = m_Content.begin();
while (cit != m_Content.end())
{
// Name only, add if martches
if ((*cit)->isNameEquals(listPath.front()))
{
result.push_back(*cit);
++ret;
}
++cit;
}
}
break;
default:
{
//a_Recurse deeper for each element
CONTAINER::const_iterator cit = m_Content.begin();
while (cit != m_Content.end())
{
if ((*cit)->isNameEquals(listPath.front()))
{
ret += (*cit)->_const_find(listPath, result);
}
++cit;
}
}
break;
}
return ret;
}
else
return 0;
}
/*!
Uses the model to emit content for a path
thisfunction("<path to the AXmlElement to emit>", separate)
lua namespace: model
lua param: Path to emit
lua param: if non-nil then each element found will be returned by itself
lua return: Content at the given path or nil if element does not exist
*/
static int alibrary_Objects_Model_emitContentFromPath(lua_State *L)
{
ATemplateContext *pLuaContext = static_cast<ATemplateContext *>(L->acontext);
AASSERT(NULL, pLuaContext);
size_t len = AConstant::npos;
const char *s = luaL_checklstring(L, 1, &len);
const AString& xmlpath = AString::wrap(s, len);
int mode = 0;
if (lua_gettop(L) > 1)
mode = luaL_checkint(L, 2);
AXmlElement::CONST_CONTAINER nodes;
size_t ret = pLuaContext->useModel().useRoot().find(xmlpath, nodes);
if (mode)
{
//a_Return each as separate values
AString str;
for (AXmlElement::CONST_CONTAINER::const_iterator cit = nodes.begin(); cit != nodes.end(); ++cit)
{
(*cit)->emitContent(str);
lua_pushlstring(L, str.c_str(), str.getSize());
str.clear();
}
return (int)ret;
}
else
{
if (ret > 0)
{
//a_Return content concatinated
ARope rope;
for (AXmlElement::CONST_CONTAINER::const_iterator cit = nodes.begin(); cit != nodes.end(); ++cit)
(*cit)->emitContent(rope);
const AString& str = rope.toAString();
lua_pushlstring(L, str.c_str(), str.getSize());
return 1;
}
else
return 0;
}
}
size_t AXmlElement::find(const AString& path, AXmlElement::CONST_CONTAINER& result) const
{
AString strAttribute;
AString strPath(path);
bool leadingSlash = false;
if ('/' == strPath.at(0))
{
leadingSlash = true; //a_Signals that slash leads the path so much include current name
}
//a_Remove the leading name (which should be this element's name)
LIST_AString listPath;
strPath.split(listPath, '/');
if (leadingSlash)
{
if (0 == listPath.size())
{
//a_ "/" selects current node
result.push_back(this);
return 1;
}
else if (0 != listPath.front().compare(m_Name))
{
//a_First token MUST be the name of this element if / leads
AString str("Absolute path must start with the name of the current root element: root=/");
str.append(m_Name);
str.append(" while path=");
str.append(path);
ATHROW_EX(this, AException::ProgrammingError, str);
}
}
else if (0 == listPath.size())
{
//a_ "/" selects current node
result.push_back(this);
return 1;
}
else
{
//a_Relative path implies this node is first
listPath.push_front(m_Name);
}
return _const_find(listPath, result);
}
void ATemplateNodeHandler_DADA::_loadStaticData()
{
AXmlElement::CONST_CONTAINER nodes;
m_Services.useConfiguration().getConfigRoot().find("AOS_DadaData/dataset", nodes);
AXmlElement::CONST_CONTAINER::iterator it;
for (it = nodes.begin(); it != nodes.end(); ++it)
{
AString strSet;
(*it)->getAttributes().get(ASW("name",4), strSet);
if (strSet.isEmpty())
ATHROW_EX(*it, AException::InvalidData, ASWNL("AOS_DadaData/dataset missing 'name' parameter"));
ADadaDataHolder *pddh = new ADadaDataHolder();
pddh->readData(m_Services, *it);
m_Objects.insert(strSet, pddh, true);
}
nodes.clear();
m_Services.useConfiguration().getConfigRoot().find(ASW("AOS_DadaData/template",21), nodes);
it = nodes.begin();
while (it != nodes.end())
{
AString str;
(*it)->emitContent(str);
AString strName;
if ((*it)->getAttributes().get(ASW("name",4), strName))
{
AFilename filename(m_Services.useConfiguration().getAosBaseDataDirectory(), str, false);
if (AFileSystem::exists(filename))
{
AFile_Physical file(filename, ASW("r", 1));
file.open();
str.clear();
while (AConstant::npos != file.readLine(str))
{
if ('#' != str.at(0, '\x0'))
{
m_Templates[strName].push_back(str);
}
str.clear();
}
}
else
m_Services.useLog().add(ARope("AOS_DadaData: Missing file: ")+filename, ALog::EVENT_WARNING);
}
else
m_Services.useLog().add(ASWNL("AOS_DadaData: AOS_DadaData/template missing 'name' attribute"), ALog::EVENT_FAILURE);
++it;
}
}
