src/runtime/XMLNode.cxx

   1 // Copyright (C) 2006-2016  CEA/DEN, EDF R&D
   2 //
   3 // This library is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU Lesser General Public
   5 // License as published by the Free Software Foundation; either
   6 // version 2.1 of the License, or (at your option) any later version.
   7 //
   8 // This library is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // Lesser General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU Lesser General Public
  14 // License along with this library; if not, write to the Free Software
  15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 //
  17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 //
  19
  20 #include "XMLNode.hxx"
  21 #include "XMLPorts.hxx"
  22 #include "Mutex.hxx"
  23 #include "TypeCode.hxx"
  24 #include "AutoLocker.hxx"
  25
  26 #include <libxml/parser.h>
  27 #include <libxml/tree.h>
  28
  29 #include <stdlib.h>
  30 #include <iostream>
  31 #include <fstream>
  32 #include <sys/types.h>
  33 #include <sys/stat.h>
  34
  35 #ifdef WIN32
  36 #include <windows.h>
  37 #include <io.h>
  38 #define chmod _chmod
  39 #endif
  40 #ifdef __APPLE__
  41 #include <unistd.h> // for mkdtemp
  42 #endif
  43
  44 //#define _DEVDEBUG_
  45 #include "YacsTrace.hxx"
  46
  47 using namespace YACS::ENGINE;
  48 using namespace std;
  49
  50 const char XmlNode::IMPL_NAME[]="XML";
  51 const char XmlNode::KIND[]="xmlsh";
  52 static YACS::BASES::Mutex MUTEX;
  53
  54 XmlNode::XmlNode(const XmlNode& other, ComposedNode *father)
  55   : _script(other._script), ServiceNode(other, father)
  56 {
  57   _implementation=IMPL_NAME;
  58   _ref = other._ref;
  59 }
  60
  61 XmlNode::XmlNode(const std::string& name)
  62   : ServiceNode(name)
  63 {
  64   _implementation=IMPL_NAME;
  65 }
  66
  67 Node *XmlNode::simpleClone(ComposedNode *father, bool editionOnly) const
  68 {
  69   return new XmlNode(*this,father);
  70 }
  71
  72 void XmlNode::setRef(const std::string& ref)
  73 {
  74   //No component instance here
  75   _ref=ref;
  76 }
  77
  78 void XmlNode::setScript(const std::string& script)
  79 {
  80   _script=script;
  81 }
  82
  83 std::string XmlNode::getScript() const
  84 {
  85   return _script;
  86 }
  87
  88 std::string XmlNode::getKind() const
  89 {
  90   return KIND;
  91 }
  92
  93 void XmlNode::execute()
  94 {
  95   DEBTRACE("execute");
  96   char dir[]="yacsXXXXXX";
  97   // add a lock around mkdtemp (seems not thread safe)
  98   {
  99     YACS::BASES::AutoLocker<YACS::BASES::Mutex> alck(&MUTEX);
 100 #ifdef WIN32
 101     char mdir [512+1];
 102     GetTempPath(MAX_PATH+1, mdir);
 103     CreateDirectory(mdir, NULL);
 104 #else
 105     char* mdir=mkdtemp(dir);
 106 #endif
 107     if(mdir==NULL)
 108       {
 109         perror("mkdtemp failed");
 110         std::cerr << "Problem in mkdtemp " << dir << " " << mdir << std::endl;
 111         throw Exception("Execution problem in mkdtemp");
 112       }
 113   }
 114   std::string sdir(dir);
 115   std::string input=sdir+"/input";
 116   std::ofstream f(input.c_str());
 117   f<<"<methodCall> <methodName>" << _method << "</methodName> <params>"<<std::endl;
 118   DEBTRACE("---------------XmlNode::inputs---------------");
 119   list<InputPort *>::iterator iter;
 120   for(iter = _setOfInputPort.begin(); iter != _setOfInputPort.end(); iter++)
 121     {
 122       InputXmlPort *p=(InputXmlPort *)*iter;
 123       DEBTRACE("port name: " << p->getName());
 124       DEBTRACE("port kind: " << p->edGetType()->kind());
 125       const char* ob=p->getXml();
 126       DEBTRACE("Xml: " << ob );
 127       f<<"<param>" << ob << "</param>"<<std::endl;
 128     }
 129   f<<"</params>"<<std::endl;
 130   f<<"</methodCall>"<<std::endl;
 131   f.close();
 132   DEBTRACE("--------------XmlNode::calculation---------------" << _ref );
 133   std::string call=sdir+"/run.sh";
 134   std::ofstream run(call.c_str());
 135   run << "#!/bin/sh" << std::endl;
 136   run << "cd " << sdir << std::endl;
 137   if(_ref[0]=='/' || _ref[0]=='~')
 138     run << _ref << "> stdout 2>&1 " << std::endl;
 139   else
 140     run << "../"<<_ref << "> stdout 2>&1 " << std::endl;
 141   //run << "cat stdout" << std::endl;
 142   run.close();
 143   chmod(call.c_str(),00777);
 144
 145   std::string call2="/bin/sh "+call;
 146   int ret=system(call2.c_str());
 147   if(ret)
 148     {
 149       std::cerr << "Problem: " << ret << std::endl;
 150       DEBTRACE("Problem: " << ret);
 151       throw Exception("Execution problem");
 152     }
 153   std::string output=sdir+"/output";
 154   xmlDocPtr doc;
 155   doc = xmlReadFile(output.c_str(), NULL, 0);
 156   if (doc == NULL)
 157     {
 158       DEBTRACE("Failed to parse " << output);
 159       throw Exception("Execution problem");
 160     }
 161   xmlNodePtr cur;
 162   cur = xmlDocGetRootElement(doc);
 163   if (cur == NULL)
 164     {
 165       DEBTRACE("empty document " );
 166       xmlFreeDoc(doc);
 167       throw Exception("Execution problem");
 168     }
 169   if (xmlStrcmp(cur->name, (const xmlChar *) "methodResponse"))
 170     {
 171       DEBTRACE("document of the wrong type, root node != methodResponse");
 172       xmlFreeDoc(doc);
 173       throw Exception("Execution problem");
 174     }
 175   cur = cur->xmlChildrenNode;
 176   xmlBufferPtr buf=xmlBufferCreate();
 177   list<OutputPort *>::iterator iter2;
 178   iter2 = _setOfOutputPort.begin();
 179   OutputXmlPort *p;
 180   p=(OutputXmlPort *)*iter2;
 181   int nres=0;
 182
 183   while (cur != NULL)
 184     {
 185       if ((!xmlStrcmp(cur->name, (const xmlChar *)"fault")))
 186         {
 187           DEBTRACE("exception in shell" );
 188           xmlFreeDoc(doc);
 189           throw Exception("Execution problem");
 190         }
 191       if ((!xmlStrcmp(cur->name, (const xmlChar *)"params")))
 192         {
 193           xmlNodePtr cur0 = cur->xmlChildrenNode;
 194           while (cur0 != NULL)
 195             {
 196               if ((!xmlStrcmp(cur0->name, (const xmlChar *)"param")))
 197                 {
 198                   xmlNodePtr cur1 = cur0->xmlChildrenNode;
 199                   while (cur1 != NULL)
 200                     {
 201                       if ((!xmlStrcmp(cur1->name, (const xmlChar *)"value")))
 202                         {
 203                           xmlNodePtr cur2=cur1->xmlChildrenNode;
 204                           while (cur2 != NULL)
 205                             {
 206                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"int")))
 207                                 {
 208                                   //got an int
 209                                   if(getNumberOfOutputPorts()!=1)
 210                                     {
 211                                       //mismatch
 212                                       xmlBufferFree(buf);
 213                                       xmlFreeDoc(doc);
 214                                       throw Exception("Execution problem:mismatch in output numbers");
 215                                     }
 216                                   xmlBufferEmpty(buf);
 217                                   xmlNodeDump(buf,doc,cur1,0,0);
 218                                   DEBTRACE(xmlBufferContent(buf));
 219                                   p->put(xmlBufferContent(buf));
 220                                 }
 221                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"double")))
 222                                 {
 223                                   //got an double
 224                                   if(getNumberOfOutputPorts()!=1)
 225                                     {
 226                                       //mismatch
 227                                       xmlBufferFree(buf);
 228                                       xmlFreeDoc(doc);
 229                                       throw Exception("Execution problem:mismatch in output numbers");
 230                                     }
 231                                   xmlBufferEmpty(buf);
 232                                   xmlNodeDump(buf,doc,cur1,0,0);
 233                                   DEBTRACE(xmlBufferContent(buf));
 234                                   p->put(xmlBufferContent(buf));
 235                                 }
 236                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"string")))
 237                                 {
 238                                   //got an string
 239                                   if(getNumberOfOutputPorts()!=1)
 240                                     {
 241                                       //mismatch
 242                                       xmlBufferFree(buf);
 243                                       xmlFreeDoc(doc);
 244                                       throw Exception("Execution problem:mismatch in output port numbers");
 245                                     }
 246                                   xmlBufferEmpty(buf);
 247                                   xmlNodeDump(buf,doc,cur1,0,0);
 248                                   DEBTRACE(xmlBufferContent(buf));
 249                                   p->put(xmlBufferContent(buf));
 250                                 }
 251                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"boolean")))
 252                                 {
 253                                   //got an boolean
 254                                   if(getNumberOfOutputPorts()!=1)
 255                                     {
 256                                       //mismatch
 257                                       xmlBufferFree(buf);
 258                                       xmlFreeDoc(doc);
 259                                       throw Exception("Execution problem:mismatch in output port numbers");
 260                                     }
 261                                   xmlBufferEmpty(buf);
 262                                   xmlNodeDump(buf,doc,cur1,0,0);
 263                                   DEBTRACE(xmlBufferContent(buf));
 264                                   p->put(xmlBufferContent(buf));
 265                                 }
 266                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"objref")))
 267                                 {
 268                                   //got an objref
 269                                   if(getNumberOfOutputPorts()!=1)
 270                                     {
 271                                       //mismatch
 272                                       xmlBufferFree(buf);
 273                                       xmlFreeDoc(doc);
 274                                       throw Exception("Execution problem:mismatch in output port numbers");
 275                                     }
 276                                   xmlBufferEmpty(buf);
 277                                   xmlNodeDump(buf,doc,cur1,0,0);
 278                                   DEBTRACE(xmlBufferContent(buf));
 279                                   p->put(xmlBufferContent(buf));
 280                                 }
 281                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"struct")))
 282                                 {
 283                                   //got an struct
 284                                   if(getNumberOfOutputPorts()!=1)
 285                                     {
 286                                       //mismatch
 287                                       xmlBufferFree(buf);
 288                                       xmlFreeDoc(doc);
 289                                       throw Exception("Execution problem:mismatch in output port numbers");
 290                                     }
 291                                   xmlBufferEmpty(buf);
 292                                   xmlNodeDump(buf,doc,cur1,0,0);
 293                                   DEBTRACE(xmlBufferContent(buf));
 294                                   p->put(xmlBufferContent(buf));
 295                                 }
 296                               if ((!xmlStrcmp(cur2->name, (const xmlChar *)"array")))
 297                                 {
 298                                   //got a tuple of results or only one result (but a list)
 299                                   if(getNumberOfOutputPorts()==1)
 300                                     {
 301                                       //It's a one result list
 302                                       xmlBufferEmpty(buf);
 303                                       xmlNodeDump(buf,doc,cur1,0,0);
 304                                       DEBTRACE(xmlBufferContent(buf));
 305                                       p->put(xmlBufferContent(buf));
 306                                     }
 307                                   else
 308                                     {
 309                                       //It's a list of results
 310                                       xmlNodePtr cur3=cur2->xmlChildrenNode;
 311                                       while (cur3 != NULL)
 312                                         {
 313                                           if ((!xmlStrcmp(cur3->name, (const xmlChar *)"data")))
 314                                             {
 315                                               xmlNodePtr cur4=cur3->xmlChildrenNode;
 316                                               while (cur4 != NULL)
 317                                                 {
 318                                                   if ((!xmlStrcmp(cur4->name, (const xmlChar *)"value")))
 319                                                     {
 320                                                       nres++;
 321                                                       if(nres > getNumberOfOutputPorts())
 322                                                         {
 323                                                           //mismatch
 324                                                           xmlBufferFree(buf);
 325                                                           xmlFreeDoc(doc);
 326                                                           throw Exception("Execution problem:mismatch in output port numbers");
 327                                                         }
 328                                                       xmlBufferEmpty(buf);
 329                                                       xmlNodeDump(buf,doc,cur4,0,0);
 330                                                       DEBTRACE(xmlBufferContent(buf));
 331                                                       p=(OutputXmlPort *)*iter2;
 332                                                       p->put(xmlBufferContent(buf));
 333                                                       iter2++;
 334                                                     }
 335                                                   cur4 = cur4->next;
 336                                                 } // end while value
 337                                               break;
 338                                             }
 339                                           cur3 = cur3->next;
 340                                         } // end while data
 341                                     }
 342                                   break;
 343                                 }
 344                               cur2 = cur2->next;
 345                             } // end while array
 346                           break;
 347                         }
 348                       cur1 = cur1->next;
 349                     } // end while value
 350                 }
 351               cur0 = cur0->next;
 352             }// end while param
 353         }
 354       cur = cur->next;
 355     }
 356   xmlBufferFree(buf);
 357   xmlFreeDoc(doc);
 358 }
 359
 360