void DataDictionary::readFromStream( std::istream& stream )
throw( ConfigError )
{
#ifdef HAVE_LIBXML
DOMDocumentPtr pDoc = DOMDocumentPtr(new LIBXML_DOMDocument());
#elif _MSC_VER
DOMDocumentPtr pDoc = DOMDocumentPtr(new MSXML_DOMDocument());
#else
DOMDocumentPtr pDoc = DOMDocumentPtr(new LIBXML_DOMDocument());
#endif
if(!pDoc->load(stream))
throw ConfigError("Could not parse data dictionary stream");
readFromDocument( pDoc );
}
xercesc::DOMDocument*
XercesDOMHandlerImpl::getDocument()
{
xercesc::DOMDocument* obj = NULLPTR;
DOMDocumentPtr* domObjWrapperPtr = doc.get();
ASSERT_LOG_MSG(domObjWrapperPtr != NULLPTR ,
XMLText::instance().implementationError("document was not created prior to call") );
obj = domObjWrapperPtr->get();
ASSERT_LOG_MSG(obj != NULLPTR ,
XMLText::instance().implementationError("document creation error") );
return obj;
}
void DataDictionary::readFromURL( const std::string& url )
throw( ConfigError )
{
#ifdef HAVE_LIBXML
DOMDocumentPtr pDoc = DOMDocumentPtr(new LIBXML_DOMDocument());
#elif _MSC_VER
DOMDocumentPtr pDoc = DOMDocumentPtr(new MSXML_DOMDocument());
#else
DOMDocumentPtr pDoc = DOMDocumentPtr(new LIBXML_DOMDocument());
#endif
if(!pDoc->load(url))
throw ConfigError(url + ": Could not parse data dictionary file");
try
{
readFromDocument( pDoc );
}
catch( ConfigError& e )
{
throw ConfigError( url + ": " + e.what() );
}
}
void DataDictionary::readFromDocument( DOMDocumentPtr pDoc )
throw( ConfigError )
{
// VERSION
DOMNodePtr pFixNode = pDoc->getNode("/fix");
if(!pFixNode.get())
throw ConfigError("Could not parse data dictionary file"
", or no <fix> node found at root");
DOMAttributesPtr attrs = pFixNode->getAttributes();
std::string type = "FIX";
if(attrs->get("type", type))
{
if(type != "FIX" && type != "FIXT")
throw ConfigError("type attribute must be FIX or FIXT");
}
std::string major;
if(!attrs->get("major", major))
throw ConfigError("major attribute not found on <fix>");
std::string minor;
if(!attrs->get("minor", minor))
throw ConfigError("minor attribute not found on <fix>");
setVersion(type + "." + major + "." + minor);
// FIELDS
DOMNodePtr pFieldsNode = pDoc->getNode("/fix/fields");
if(!pFieldsNode.get())
throw ConfigError("<fields> section not found in data dictionary");
DOMNodePtr pFieldNode = pFieldsNode->getFirstChildNode();
if(!pFieldNode.get()) throw ConfigError("No fields defined");
while(pFieldNode.get())
{
if(pFieldNode->getName() == "field")
{
DOMAttributesPtr attrs = pFieldNode->getAttributes();
std::string name;
if(!attrs->get("name", name))
throw ConfigError("<field> does not have a name attribute");
std::string number;
if(!attrs->get("number", number))
throw ConfigError("<field> " + name + " does not have a number attribute");
int num = atol(number.c_str());
std::string type;
if(!attrs->get("type", type))
throw ConfigError("<field> " + name + " does not have a type attribute");
addField(num);
addFieldType(num, XMLTypeToType(type));
addFieldName(num, name);
DOMNodePtr pFieldValueNode = pFieldNode->getFirstChildNode();
while(pFieldValueNode.get())
{
if(pFieldValueNode->getName() == "value")
{
DOMAttributesPtr attrs = pFieldValueNode->getAttributes();
std::string enumeration;
if(!attrs->get("enum", enumeration))
throw ConfigError("<value> does not have enum attribute in field " + name);
addFieldValue(num, enumeration);
std::string description;
if(attrs->get("description", description))
addValueName(num, enumeration, description);
}
RESET_AUTO_PTR(pFieldValueNode, pFieldValueNode->getNextSiblingNode());
}
}
RESET_AUTO_PTR(pFieldNode, pFieldNode->getNextSiblingNode());
}
// HEADER
if( type == "FIXT" || (type == "FIX" && major < "5") )
{
DOMNodePtr pHeaderNode = pDoc->getNode("/fix/header");
if(!pHeaderNode.get())
throw ConfigError("<header> section not found in data dictionary");
DOMNodePtr pHeaderFieldNode = pHeaderNode->getFirstChildNode();
if(!pHeaderFieldNode.get()) throw ConfigError("No header fields defined");
while(pHeaderFieldNode.get())
{
if(pHeaderFieldNode->getName() == "field" || pHeaderFieldNode->getName() == "group" )
{
DOMAttributesPtr attrs = pHeaderFieldNode->getAttributes();
std::string name;
if(!attrs->get("name", name))
throw ConfigError("<field> does not have a name attribute");
std::string required = "false";
attrs->get("required", required);
addHeaderField(lookupXMLFieldNumber(pDoc.get(), name), required == "true");
}
if(pHeaderFieldNode->getName() == "group")
{
DOMAttributesPtr attrs = pHeaderFieldNode->getAttributes();
std::string required;
attrs->get("required", required);
bool isRequired = (required == "Y" || required == "y");
addXMLGroup(pDoc.get(), pHeaderFieldNode.get(), "_header_", *this, isRequired);
}
RESET_AUTO_PTR(pHeaderFieldNode, pHeaderFieldNode->getNextSiblingNode());
}
}
// TRAILER
if( type == "FIXT" || (type == "FIX" && major < "5") )
{
DOMNodePtr pTrailerNode = pDoc->getNode("/fix/trailer");
if(!pTrailerNode.get())
throw ConfigError("<trailer> section not found in data dictionary");
DOMNodePtr pTrailerFieldNode = pTrailerNode->getFirstChildNode();
if(!pTrailerFieldNode.get()) throw ConfigError("No trailer fields defined");
while(pTrailerFieldNode.get())
{
if(pTrailerFieldNode->getName() == "field" || pTrailerFieldNode->getName() == "group" )
{
DOMAttributesPtr attrs = pTrailerFieldNode->getAttributes();
std::string name;
if(!attrs->get("name", name))
throw ConfigError("<field> does not have a name attribute");
std::string required = "false";
attrs->get("required", required);
addTrailerField(lookupXMLFieldNumber(pDoc.get(), name), required == "true");
}
if(pTrailerFieldNode->getName() == "group")
{
DOMAttributesPtr attrs = pTrailerFieldNode->getAttributes();
std::string required;
attrs->get("required", required);
bool isRequired = (required == "Y" || required == "y");
addXMLGroup(pDoc.get(), pTrailerFieldNode.get(), "_trailer_", *this, isRequired);
}
RESET_AUTO_PTR(pTrailerFieldNode, pTrailerFieldNode->getNextSiblingNode());
}
}
// MSGTYPE
DOMNodePtr pMessagesNode = pDoc->getNode("/fix/messages");
if(!pMessagesNode.get())
throw ConfigError("<messages> section not found in data dictionary");
DOMNodePtr pMessageNode = pMessagesNode->getFirstChildNode();
if(!pMessageNode.get()) throw ConfigError("No messages defined");
while(pMessageNode.get())
{
if(pMessageNode->getName() == "message")
{
DOMAttributesPtr attrs = pMessageNode->getAttributes();
std::string msgtype;
if(!attrs->get("msgtype", msgtype))
throw ConfigError("<field> does not have a name attribute");
addMsgType(msgtype);
std::string name;
if(attrs->get("name", name))
addValueName( 35, msgtype, name );
DOMNodePtr pMessageFieldNode = pMessageNode->getFirstChildNode();
while( pMessageFieldNode.get() )
{
if(pMessageFieldNode->getName() == "field"
|| pMessageFieldNode->getName() == "group")
{
DOMAttributesPtr attrs = pMessageFieldNode->getAttributes();
std::string name;
if(!attrs->get("name", name))
throw ConfigError("<field> does not have a name attribute");
int num = lookupXMLFieldNumber(pDoc.get(), name);
addMsgField(msgtype, num);
std::string required;
if(attrs->get("required", required)
&& (required == "Y" || required == "y"))
{
addRequiredField(msgtype, num);
}
}
else if(pMessageFieldNode->getName() == "component")
{
DOMAttributesPtr attrs = pMessageFieldNode->getAttributes();
std::string required;
attrs->get("required", required);
bool isRequired = (required == "Y" || required == "y");
addXMLComponentFields(pDoc.get(), pMessageFieldNode.get(),
msgtype, *this, isRequired);
}
if(pMessageFieldNode->getName() == "group")
{
DOMAttributesPtr attrs = pMessageFieldNode->getAttributes();
std::string required;
attrs->get("required", required);
bool isRequired = (required == "Y" || required == "y");
addXMLGroup(pDoc.get(), pMessageFieldNode.get(), msgtype, *this, isRequired);
}
RESET_AUTO_PTR(pMessageFieldNode,
pMessageFieldNode->getNextSiblingNode());
}
}
RESET_AUTO_PTR(pMessageNode, pMessageNode->getNextSiblingNode());
}
}
