propertylist.cpp

OSB-PIK-OpenVXI-3.0.0源代码 “中国XML论坛 - 专业的XML技术讨论区--XML在语音技术中的应用”

     if (attrStream.bad()) value = -1;
 #endif
 
     if (value < 0) {
       log.StartDiagnostic(0) << L"PropertyList::GetFetchobjCacheAttrs - "
         L"Invalid value for " << propName << L" of " << attr << L".";
       log.EndDiagnostic();
       throw VXIException::InterpreterEvent(EV_ERROR_SEMANTIC,
                                            L"invalid maxage value");
     }
 
     // (1.3) Add value to fetchobj
     VXIInteger * val = VXIIntegerCreate(value);
     if (val == NULL) throw VXIException::OutOfMemory();
     VXIvalueResult r = VXIMapSetProperty(fetchobj.GetValue(),
                                          INET_CACHE_CONTROL_MAX_AGE,
                                          reinterpret_cast<VXIValue*>(val));
   }
 
   // (2) Attribute: maxstale
 
   // (2.1) Get the attribute - first locally, then from the defaults.
   attr.erase();
   elem.GetAttribute(ATTRIBUTE_MAXSTALE, attr);
   if (attr.empty()) {
     switch (type) {
     case PropertyList::Audio:      propName = L"audiomaxstale";     break;
     case PropertyList::Document:   propName = L"documentmaxstale";  break;
     case PropertyList::Grammar:    propName = L"grammarmaxstale";   break;
     case PropertyList::Object:     propName = L"objectmaxstale";    break;
     case PropertyList::Script:     propName = L"scriptmaxstale";    break;
     }
 
     attr = toString(GetProperty(propName));
   }
 
   // (2.2) Process the value.
   if (!attr.empty()) {
     VXIint value = -1;
 
 #if defined(__GNUC__)
   // The G++ 2.95/3.0 implementation of basic_stringstream is faulty.
     VXIchar * temp;
     value = VXIint(wcstol(attr.c_str(), &temp, 10));
     if (*temp) value = -1;
 #else
     std::basic_stringstream<VXIchar> attrStream(attr);
     attrStream >> value;
     if (attrStream.bad()) value = -1;
 #endif
 
     if (value < 0) {
       log.StartDiagnostic(0) << L"PropertyList::GetFetchobjCacheAttrs - "
         L"Invalid value for " << propName << L" of " << attr << L".";
       log.EndDiagnostic();
       throw VXIException::InterpreterEvent(EV_ERROR_SEMANTIC,
                                            L"invalid maxstale value");
     }
 
     // (2.3) Add value to fetchobj
     VXIInteger * val = VXIIntegerCreate(value);
     if (val == NULL) throw VXIException::OutOfMemory();
     VXIvalueResult r = VXIMapSetProperty(fetchobj.GetValue(),
                                          INET_CACHE_CONTROL_MAX_AGE,
                                          reinterpret_cast<VXIValue*>(val));
   }
 
   // (3) Attribute: fetchtimeout
 
   // (3.1) Get the attribute - first locally, then from the defaults.
   attr.erase();
   elem.GetAttribute(ATTRIBUTE_FETCHTIMEOUT, attr);
   if (attr.empty())
     attr = toString(GetProperty(L"fetchtimeout"));
 
   // (3.2) Process the value.
   if (!attr.empty()) {
     VXIint value;
     if (!ConvertTimeToMilliseconds(log, attr, value)) {
       log.StartDiagnostic(0) << L"PropertyList::GetFetchobjTimeout - "
         L"Invalid value for fetchtimeout of " << attr << L".";
       log.EndDiagnostic();
       throw VXIException::InterpreterEvent(EV_ERROR_SEMANTIC,
                                            L"invalid fetchtimeout value");
     }
     
     // throw an bad.fetch if the fetchtimeout = 0
     if( value == 0 )
       throw VXIException::InterpreterEvent(EV_ERROR_BADFETCH,
                                            L"fetchtimeout value is 0s");  
     
     // (3.3) Add value to fetchobj
     VXIInteger * str = VXIIntegerCreate(value);
     if (str == NULL) throw VXIException::OutOfMemory();
     VXIvalueResult r = VXIMapSetProperty(fetchobj.GetValue(),INET_TIMEOUT_DOWNLOAD,
                                          reinterpret_cast<VXIValue*>(str));
   }
 
   // (4) Base uri from inet
   attr.erase();
   elem.GetAttribute(ATTRIBUTE_BASE, attr);
   if (attr.empty()) {
     const VXIchar* tmp = GetProperty(PropertyList::BaseURI);
     if( tmp ) attr = tmp;
   }
   
   if( !attr.empty() ) { 
     VXIString * base = VXIStringCreate(attr.c_str());
     if (base == NULL) throw VXIException::OutOfMemory();
 
     VXIMapSetProperty(fetchobj.GetValue(), INET_URL_BASE,
                     reinterpret_cast<VXIValue*>(base));
   }
   
 #pragma message ("PropertyList::GetFetchobjCacheAttrs - ignoring fetchhint")
 }
 
 
 bool PropertyList::GetFetchobjSubmitAttributes(const VXMLElement & elem,
                                                VXIMapHolder & submitData,
                                                VXIMapHolder & fetchobj) const
 {
   // (1) Set submit method.
 
   // (1.1) Get the attribute - first locally, then from the defaults.
   vxistring attr;
   elem.GetAttribute(ATTRIBUTE_METHOD, attr);
 
   // (1.2) Process the value.
   const VXIchar * value = NULL;
   if (attr == L"get" || attr.empty())
     value = INET_SUBMIT_METHOD_GET;
   else if (attr == L"post")
     value = INET_SUBMIT_METHOD_POST;
   else {
     log.StartDiagnostic(0) << L"PropertyList::GetFetchobjSubmitMethod - "
       L"Bad value (" << ATTRIBUTE_METHOD << L" = \"" << attr << L"\"), "
       L"defaulting to " << INET_SUBMIT_METHOD_DEFAULT << L".";
     log.EndDiagnostic();
     value = INET_SUBMIT_METHOD_DEFAULT;
   }
 
   // (1.3) Add value to fetchobj
   VXIString * str = VXIStringCreate(value);
   if (str == NULL) throw VXIException::OutOfMemory();
   VXIvalueResult r = VXIMapSetProperty(fetchobj.GetValue(), INET_SUBMIT_METHOD,
                                        reinterpret_cast<VXIValue*>(str));
   if (r != VXIvalue_RESULT_SUCCESS) return false;
 
   // (2) Get encoding for the submit.
 
   // (2.1) Get the attribute.
   if (!elem.GetAttribute(ATTRIBUTE_ENCTYPE, attr))
     attr = L"application/x-www-form-urlencoded";
 
   // (2.2) Add value to fetchobj
   str = VXIStringCreate(attr.c_str());
   if (str == NULL) throw VXIException::OutOfMemory();
   r = VXIMapSetProperty(fetchobj.GetValue(), INET_SUBMIT_MIME_TYPE,
                         reinterpret_cast<VXIValue*>(str));
   if (r != VXIvalue_RESULT_SUCCESS) return false;
 
   // (3) Set the submit data.
   r = VXIMapSetProperty(fetchobj.GetValue(), INET_URL_QUERY_ARGS,
                         reinterpret_cast<VXIValue*>(submitData.Release()));
 
   return r == VXIvalue_RESULT_SUCCESS;
 }
 
 
 bool PropertyList::GetFetchobjBase(VXIMapHolder & fetchobj) const
 {
   const VXIchar * base = GetProperty(PropertyList::BaseURI);
   if (base != NULL)
     AddParamValue(fetchobj, INET_URL_BASE, base);
 
   return true;
 }
 
 
 bool PropertyList::GetFetchobjURIs(const VXMLElement & elem,
                                    VXIMapHolder & fetchobj,
                                    vxistring & url,
                                    vxistring & fragment) const
 {
   fragment = L"";
 
   // The URI may be decomposed into three elements - the base, a relative
   // address, and a fragment corresponding to a dialog within that module.
 
   // (1) First the base.
   GetFetchobjBase(fetchobj);
 
   // (2) Then determine if there is a fragment at all.
   if (url.empty()) return false;
 
   vxistring::size_type pos = url.find('#');
   if (pos == vxistring::npos) return true;
 
   // (3) There was a fragment.
   if (pos + 1 < url.length())
     fragment = url.substr(pos + 1, url.length() - pos - 1);
 
   url.erase(pos);
 
   return true;
 }
 
 //****************************************************************
 //* Recognition & Grammar property related.
 //****************************************************************
 
 bool PropertyList::PushProperties(const VXMLElement & doc)
 {
   // (1) Find the last non-empty level.
   unsigned int i;
   for (i = LAST_PROP - 1; i > 0; --i)
     if (!properties[i].empty()) break;
 
   bool addsForbidden = (i == LAST_PROP - 1);
   STRINGMAP & propmap = properties[i + 1];  // This is the first empty level.
 
   // (2) Add properties at that point.
 
   bool foundSomething = false;
 
   for (VXMLNodeIterator it(doc); it; ++it) {
     VXMLNode child = *it;
 
     if (child.GetType() != VXMLNode::Type_VXMLElement) continue;
     const VXMLElement & elem = reinterpret_cast<const VXMLElement &>(child);
     VXMLElementType nodeName = elem.GetName();
     if (nodeName == NODE_PROPERTY) {
       if (addsForbidden) {
         log.LogError(999,SimpleLogger::MESSAGE,L"property list size exceeded");
         return false;
       }
 
       vxistring name;
       vxistring value;
       elem.GetAttribute(ATTRIBUTE_NAME, name);
       elem.GetAttribute(ATTRIBUTE_VALUE, value);
 
       // This added the name / value pair, converting to vxistrings.
       propmap.insert(propmap.end(), STRINGMAP::value_type(name, value));
 
       foundSomething = true;
     }
   }
 
   return foundSomething;
 }
 
 
 void PropertyList::PopProperties()
 {
   // Find the last non-empty level.
   unsigned int i;
   for (i = LAST_PROP - 1; i > 0; --i)
     if (!properties[i].empty()) break;
 
   // Clear it.
   properties[i].clear();
 }
 
 void PropertyList::PopPropertyLevel(PropertyLevel l)
 {
   if( l < LAST_PROP && !properties[l].empty()) {
     properties[l].clear();
   }
 }
 
 // This starts at the lowest level, inserting entries into a newly created map.
 // Values at higher levels will overwrite keys with identical names.
 //
 void PropertyList::GetProperties(VXIMapHolder & m) const
 {
   // (1) Collapse the values down into a single map.
   STRINGMAP collapsed;
   PROPERTIES::const_iterator i;
   for (i = properties.begin(); i != properties.end(); ++i) {
     for (STRINGMAP::const_iterator j = (*i).begin(); j != (*i).end(); ++j) {
       collapsed[(*j).first] = (*j).second;
     }
   }
 
   // (2) Create a new map & copy the values over.
   STRINGMAP::const_iterator j;
   for (j = collapsed.begin(); j != collapsed.end(); ++j) {
     VXIString * value = VXIStringCreate((*j).second.c_str());
     if (value == NULL) throw VXIException::OutOfMemory();
 
     // Set this key.
     VXIMapSetProperty(m.GetValue(), (*j).first.c_str(),
                       reinterpret_cast<VXIValue *>(value));
   }
 }