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WsdlInvoker.h

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00001 /* 
00002  * wsdlpull - A C++ parser  for WSDL  (Web services description language)
00003  * Copyright (C) 2005-2007 Vivek Krishna
00004  *
00005  * This library is free software; you can redistribute it and/or
00006  * modify it under the terms of the GNU Library General Public
00007  * License as published by the Free Software Foundation; either
00008  * version 2 of the License, or (at your option) any later version.
00009  *
00010  * This library is distributed in the hope that it will be useful,
00011  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  * Library General Public License for more details.
00014  *
00015  * You should have received a copy of the GNU Library General Public
00016  * License along with this library; if not, write to the Free
00017  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00018  */
00019 
00020 //An api to examine and invoke the web service in a protocol independent fashion
00021 
00022 #ifndef _WSDLINVOKERH
00023 #define _WSDLINVOKERH
00024 
00025 #include "xmlpull/XmlSerializer.h"
00026 #include "wsdlparser/WsdlParser.h"
00027 #include "wsdlparser/Soap.h"
00028 #include "xmlpull/wsdlpull_export.h"
00029 
00030 
00031 namespace WsdlPull{
00032 
00033  struct Parameter
00034  {
00035    Parameter(Schema::Type ,std::string,int m,int x,const SchemaParser* s,
00036              const std::vector<std::string>& parents);
00037    Schema::Type type_;
00038    std::string tag_;
00039    unsigned int min_;
00040    unsigned int max_;
00041    int n_;
00042    std::vector<std::string> data_;
00043    bool str_;
00044    const SchemaParser* sParser_;
00045    std::vector<std::string> parents_;
00046 
00047  };
00048 
00049 class WSDLPULL_EXPORT WsdlInvoker
00050 {
00051  public:
00059   WsdlInvoker(const std::string &url);
00060   WsdlInvoker();
00061   ~WsdlInvoker();
00063 
00066   bool setWSDLUri(const std::string &url);
00073   // allready parsed wsdl
00074   bool init(WsdlParser* parser);
00075 
00076   int getOperations(std::vector<std::string> & operations);
00077   std::string getOpDocumentaion(const std::string & n);
00083   bool setOperation(const std::string & operation,
00084                     WsdlPull::MessageType mType = WsdlPull::Input);
00088   std::string getServiceEndPoint(const std::string & opname) ;
00090 
00095   void setMessageType(const WsdlPull::MessageType type);
00096 
00099   
00110   bool setValue(const std::string & param,void* val);
00111   bool setValue(const std::string & param,void** values,unsigned int occur);
00112   bool setValue(const std::string & param,std::string val);
00113   bool setValue(const std::string & param,std::vector<std::string> values);//multiple occurrences
00114   bool setValue(const std::vector<std::string> & parents,void* val);
00120   bool invoke(long timeout = 0);
00129   void* getValue(const std::string & param,Schema::Type & t); 
00130   
00132   
00135   
00150   int getNextInput(std::string & param ,Schema::Type & type,int & minimum,int & maximum);
00151   int getNextInput(std::string & param ,Schema::Type & type,int & minimum,int & maximum,
00152                    std::vector<std::string>& parents);
00158   int getNextHeaderInput(std::string & param ,Schema::Type & type,int & minimum,int & maximum);
00162   int nInputHeaders()const;
00163   
00171   bool setInputValue(const int param,void* val);
00172   bool setInputValue(const int id,void** values,unsigned int occur);
00173 
00181   bool setInputValue(const int param,std::string val);
00182   bool setInputValue(const int param,std::vector<std::string> values);//multiple occurrences
00183 
00189   bool getNextOutput(std::string  & name,TypeContainer * & tc);
00190   
00195   TypeContainer* getOutput(const std::string  & name);
00196   
00202    bool getNextHeaderOutput(std::string & name,TypeContainer*& tc);
00203 
00205    // change location of the service
00206   void setLocation(const std::string  & url);
00207   // set credentials for the service
00208   void setCredentials(const std::string & user, const std::string & pass);
00209   void setProxy(const std::string & host,int  port=80);
00210   //enable logging
00211   void setVerbose(bool f);
00212   // prints the output along with typenames like
00213   // name:value.
00214   //if false only value is printed
00215   void printTypeNames(bool f);
00216   //get the error message
00217   std::string errors();
00218   //if this returns false something went wrong
00219   bool status()const;
00220 
00221 
00222  private:
00223   //private stuff 
00224 
00225   //creaate xml request
00226   void serialize();
00227   void serializeType(Schema::Type typeId,
00228                      const std::string &tag,
00229                      const SchemaParser * sParser,
00230                      int minimum,
00231                      int maximum,
00232                      std::vector<std::string> parents);
00233   void serializeParam(int n,const std::string & tag,
00234                       const SchemaParser * sParser);
00235   void serializeContentModel(ContentModel *cm,
00236                              const SchemaParser *sParser,
00237                              std::vector<std::string> parents);
00242   void post(long timeout=0, std::string username="", std::string passwd="");
00243   void processResults();
00244   void processFault(XmlPullParser* xpp);
00245   void processHeader(XmlPullParser *xpp);
00246   void processBody(const Message* m,XmlPullParser* xpp);
00247   void parseWsdl(const std::string & url);
00248   void serializeHeader();
00249   bool isSoapArray (const ComplexType * ct,const SchemaParser * sParser);
00250   //reset state information
00251   void reset();
00252   void getOperationDetails(const Operation* op);
00253 
00254   WsdlParser * wParser_;
00255   WsdlParser * ourParser_;
00256   XmlSerializer * xmlStream_;
00257   Soap* soap_;
00258   const Message* hMessage_;//message corresponding to soap header
00259   int hPartId_;
00260   std::ostringstream * soapstr_;
00261   std::ostringstream logger_;
00262   bool status_;
00263   bool serializeMode_;
00264   bool verbose_;
00265   int oHeaders_;
00266   std::map<std::string,const Operation*> opMap_;
00267   const Operation* op_;
00268   Soap::Encoding use_;//literal or encoded
00269   std::string encodingStyle_; // this is usually the soap encoding style
00270   Soap::Style style_;//rpc or doc
00271   std::string nsp_; // namespace for the operation
00272   std::string location_;
00273   std::string username_,password_,host_;
00274   int port_;
00275   std::string action_;//SOAPAction header
00276   std::vector<Parameter> elems_;//the simple types
00277   std::vector<Parameter> attribs_;//input attributes
00278   size_t n_;//a counter to iterate through the params
00279   int iHeaders_; //number of soap header inputs
00280   std::vector<std::pair<std::string,TypeContainer*> > outputs_;
00281   WsdlPull::MessageType messageType_;
00282 
00283 };
00284 
00285 inline
00286 Parameter::Parameter(Schema::Type t,std::string n,int m,int x,const SchemaParser* s,
00287                      const std::vector<std::string>& parents)
00288   :type_(t),
00289      tag_(n),
00290      min_(m),
00291      max_(x),
00292      n_(0),
00293      sParser_(s),
00294      parents_(parents)
00295      
00296 {
00297 }
00298 
00299 inline
00300 std::string 
00301 WsdlInvoker::errors()
00302 {
00303   return logger_.str();
00304 }
00305 
00306 inline
00307 bool
00308 WsdlInvoker::setWSDLUri(const std::string &url)
00309 {
00310   parseWsdl(url);
00311   return status_;
00312 }
00313 
00314 inline
00315 bool
00316 WsdlInvoker::status()const
00317 {
00318   return status_;
00319 }
00320 
00321 inline 
00322 void
00323 WsdlInvoker::setLocation(const std::string  & url)
00324 {
00325   location_ = url;
00326 }
00327 
00328 inline 
00329 void
00330 WsdlInvoker::setCredentials(const std::string & user, const std::string & pass)
00331 {
00332   username_ = user;
00333   password_ = pass;
00334 }
00335 
00336 inline
00337 void
00338 WsdlInvoker::setProxy(const std::string & host,int  port)
00339 {
00340   host_ = host;
00341   port_ = port;
00342 }
00343 
00344 inline
00345 void
00346 WsdlInvoker::setVerbose(bool f)
00347 {
00348   verbose_ = f;
00349 }
00350 
00351 inline
00352 int
00353 WsdlInvoker::nInputHeaders()const
00354 {
00355   return iHeaders_;
00356 }
00357 
00358 inline 
00359 void
00360 WsdlInvoker::setMessageType(const WsdlPull::MessageType type)
00361 {
00362   messageType_ = type;
00363 }
00364 
00365 }
00366 #endif
00367 

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