propertylist.hpp

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”

 /****************License************************************************
  *
  * Copyright 2000-2003.  ScanSoft, Inc.    
  *
  * Use of this software is subject to notices and obligations set forth 
  * in the SpeechWorks Public License - Software Version 1.2 which is 
  * included with this software. 
  *
  * ScanSoft is a registered trademark of ScanSoft, Inc., and OpenSpeech, 
  * SpeechWorks and the SpeechWorks logo are registered trademarks or 
  * trademarks of SpeechWorks International, Inc. in the United States 
  * and other countries.
  *
  ***********************************************************************/
 

 #include "VXIvalue.h"                  // for VXIMap
 #include <string>
 #include <map>
 #include <vector>
 #include "CommonExceptions.hpp"
 
 class VXMLElement;
 class SimpleLogger;
 
 typedef std::basic_string<VXIchar> vxistring;
 
 enum PropertyLevel {
   DEFAULTS_PROP = 0,
   SESSION_PROP  = 1,
   APP_PROP      = 2,
   DOC_PROP      = 3,
   DIALOG_PROP   = 4,
   FIELD_PROP    = 5,
   LAST_PROP     = 6        // this one should always be last in the list
 };
 
 
 class PropertyList {
 public:
   static const VXIchar * const BaseURI;
   static const VXIchar * const Language;
   static const VXIchar * const AbsoluteURI;
 
   const VXIchar* GetProperty(const VXIchar * key,
                              PropertyLevel L = LAST_PROP) const;
   // Returns property value if a match was found.  Otherwise returns NULL.
 
   bool SetProperty(const VXIchar * key, const VXIchar * value,
                    PropertyLevel L);
 
   void SetProperties(const VXMLElement & doc, PropertyLevel level,
                      const VXIMapHolder &);
   // Sets all properties indicated by <property> at this level.
 
 public:
   enum CacheAttrType {
     Audio,
     Document,
     Grammar,
     Object,
     Script
   };
 
   void GetFetchobjCacheAttrs(const VXMLElement & elem,
                              CacheAttrType,
                              VXIMapHolder & fetchobj) const;
 
 public:
   bool GetFetchobjSubmitAttributes(const VXMLElement & elem,
                                    VXIMapHolder & submitData,
                                    VXIMapHolder & fetchobj) const;
 
   bool GetFetchobjBase(VXIMapHolder & fetchobj) const;
   bool GetFetchobjSubmitType(const VXMLElement & elem,
                              VXIMapHolder & fetchobj) const;
   bool GetFetchobjURIs(const VXMLElement & elem, VXIMapHolder & fetchobj,
                        vxistring & uri, vxistring & fragment) const;
 
   bool PushProperties(const VXMLElement & elem);
   // Returns: true if any properties were found.
 
   void PopProperties();
   void PopPropertyLevel(PropertyLevel l);
   void GetProperties(VXIMapHolder &) const;
 
   PropertyList& operator=(const PropertyList &);
   PropertyList(const PropertyList &);
 
   PropertyList(const SimpleLogger & l);
   ~PropertyList() { properties.clear(); }
 
 public:
   static bool ConvertTimeToMilliseconds(const SimpleLogger &,
                                         const vxistring & time,
                                         VXIint& result);
   // This function converts an incoming string into an appropriate number of
   // milliseconds.  The format of the string is pretty rigid - some number of
   // digits (0...9) followed by {"s", "ms"} for seconds or milliseconds
   // respectively.  White space or decimals are both illegal.  The result will
   // always contain the 'best guess' even if an error is returned.  Should no
   // units be provided, seconds is assumed and an error is returned.
   //
   // Returns: true  - the time was well formed and result contains number of ms
   //          false - the time was illegal, result contains the best guess
 
   static bool ConvertValueToFraction(const SimpleLogger &,
                                      const vxistring & value,
                                      VXIflt32& result);
   // This function converts an incoming string into a floating point number
   // in the interval [0, 1].
   //
   // Returns: true  - the number was well formed and in the interval
   //          false - the value was illegal, result contains the best guess
 
 private:
   typedef std::map<vxistring, vxistring> STRINGMAP;
   typedef std::vector<STRINGMAP> PROPERTIES;
   PROPERTIES properties;
   const SimpleLogger & log;
 };
 
 
 inline void AddParamValue(VXIMapHolder & m, const vxistring & name,
                           VXIint value)
 {
   if (m.GetValue() == NULL) return;
   VXIInteger * val = VXIIntegerCreate(value);
   if (val == NULL) throw VXIException::OutOfMemory();
   VXIMapSetProperty(m.GetValue(), name.c_str(),
                     reinterpret_cast<VXIValue *>(val));
 }
 
 
 inline void AddParamValue(VXIMapHolder & m, const vxistring & name,
                           const VXIchar * value)
 {
   if ((m.GetValue() == NULL) || (value == NULL)) return;
   VXIString * val = VXIStringCreate(value);
   if (val == NULL) throw VXIException::OutOfMemory();
   VXIMapSetProperty(m.GetValue(), name.c_str(),
                     reinterpret_cast<VXIValue *>(val));
 }
 
 
 inline void AddParamValue(VXIMapHolder & m, const vxistring & name,
                           const vxistring & value)
 {
   if (m.GetValue() == NULL) return;
   VXIString * val = VXIStringCreate(value.c_str());
   if (val == NULL) throw VXIException::OutOfMemory();
   VXIMapSetProperty(m.GetValue(), name.c_str(),
                     reinterpret_cast<VXIValue *>(val));
 }
 
 
 inline void AddParamValue(VXIMapHolder & m, const vxistring & name,
                           VXIflt32 value)
 {
   if (m.GetValue() == NULL) return;
   VXIFloat * val = VXIFloatCreate(value);
   if (val == NULL) throw VXIException::OutOfMemory();
   VXIMapSetProperty(m.GetValue(), name.c_str(),
                     reinterpret_cast<VXIValue *>(val));
 }
 
 
 inline void AddParamValue(VXIMapHolder & m, const vxistring & name,
                           bool value)
 {
   if (m.GetValue() == NULL) return;
   VXIBoolean * val = VXIBooleanCreate((value ? TRUE : FALSE));
   if (val == NULL) throw VXIException::OutOfMemory();
   VXIMapSetProperty(m.GetValue(), name.c_str(),
                     reinterpret_cast<VXIValue *>(val));
 }