mysql efforts...

Expression.cpp

@@ -14,7 +14,7 @@ namespace jet {
       string = op1.string;
 
       if(in.unparsed().getLength() > 0) {
-	 std::cout << "1)" << in.unparsed() << std::endl;
+	 std::cout << "1)" << in.unparsed() << "(" << std::endl;
 	 if(in.ifNext("+"))
 	   operation = (char *)"+";
 	 else if(in.ifNext("-"))
@@ -27,7 +27,9 @@ namespace jet {
 	 Operand op2(in);
 	 std::cout << op1.string << ":" << operation << ":" << op2.string << std::endl;
       }
-            
+
+      
+      
       std::cout << "Leaving expression string: " << string << std::endl;
       std::cout << "Unparsed: [" << in.unparsed() << "]" << std::endl;
    }

Global.cpp

@@ -1,4 +1,5 @@
 #include "Global.h"
+#include "Exception.h"
 #include <iostream>
 
 namespace jet {
@@ -16,4 +17,18 @@ namespace jet {
 	std::cout << i->first << "=[" << i->second << "]" << std::endl; 
    }
 
+   bool Global::sessionExists(coreutils::MString sessionId) {
+      return sessions.find(sessionId) != sessions.end();
+   }
+   
+   void Global::addSession(coreutils::MString sessionId, __mysql *mysql) {
+      if(sessionExists(sessionId))
+	coreutils::Exception("sessionid already exists.");
+      sessions[sessionId] = mysql;
+   }
+   
+   void Global::removeSession(coreutils::MString sessionId) {
+      sessions.erase(sessionId);
+   }
+   
 }

Global.h

@@ -6,6 +6,8 @@
 
 namespace  jet {
 
+   class __mysql;
+   
    class Global {
 
     public:
@@ -13,8 +15,13 @@ namespace  jet {
       virtual ~Global();
 
       void dump();
+      bool sessionExists(coreutils::MString sessionId);
+      void addSession(coreutils::MString sessionId, __mysql *mysql);
+      void removeSession(coreutils::MString sessionId);
+      void getVariable(ZString variable);
       
       std::map<coreutils::MString, coreutils::MString> variables;
+      std::map<coreutils::MString, __mysql *> sessions;
       
    };
 

Operand.h

@@ -11,10 +11,7 @@ namespace jet {
       Operand(coreutils::ZString &in);
 
       bool isNumber();
-      bool isInteger();
-      bool isFloat();
       bool isString();
-      bool isVariable();
 
       ///
       /// boolean is set by internal processes to return the boolean

Tag.cpp

@@ -3,6 +3,7 @@
 #include "KeywordValue.h"
 #include "Log.h"
 #include "__mysql.h"
+#include "__sql.h"
 #include "__comment.h"
 #include "__for.h"
 #include "__if.h"

Tag.h

@@ -26,6 +26,9 @@ namespace jet {
       void processContainer(coreutils::ZString &container);
       void copyContainer(coreutils::ZString &in, coreutils::MString &out);
 
+      Global &global;
+      coreutils::MString &parent;
+
       coreutils::MString out;
 
       bool output = true;
@@ -35,8 +38,6 @@ namespace jet {
       bool cleanWhitespace = false;
 
     private:
-      Global &global;
-      coreutils::MString &parent;
       coreutils::ZString splitTagName;
 
       int skipBlankLine(coreutils::ZString in);

__if.cpp

@@ -42,9 +42,8 @@ namespace jet {
       }
       if(booleanResult) 
 	processContainer(container);
-      else
-	if(hasContainer2)
-	  processContainer(container2);
+      else if(hasContainer2)
+	processContainer(container2);
       
    }
 

__mysql.cpp

@@ -1,10 +1,44 @@
 #include "__mysql.h"
+#include "Exception.h"
 #include <iostream>
 
 namespace jet {
 
    __mysql::__mysql(coreutils::ZString &in, coreutils::MString &parent, Global &global) : Tag(in, parent, global) {
       processContainer(container);
+
+      if(!variableDefined("host"))
+	coreutils::Exception("host must be specified for mysql tag.");
+      if(!variableDefined("database"))
+	coreutils::Exception("database must be specified for mysql tag.");
+      if(!variableDefined("user"))
+	coreutils::Exception("user must be specified for mysql tag.");
+      if(!variableDefined("password"))
+	coreutils::Exception("password must be specified for mysql tag.");
+
+      sessionId = variables["sessionid"];
+      
+      global.addSession(sessionId, this);
+      
+      mysql = mysql_init(NULL);
+      mysql = mysql_real_connect(mysql, variables["host"].c_str(), variables["user"].c_str(), variables["password"].c_str(), variables["database"].c_str(), 0, NULL, 0);            
+      
    }
 
+   __mysql::~__mysql() {
+      global.removeSession(sessionId);
+      mysql_free_result(result);
+      mysql_close(mysql);
+   }
+
+   void __mysql::query(coreutils::MString query) {
+      mysql_real_query(mysql, query.getData(), query.getLength());
+      result = mysql_store_result(mysql);
+      if(result) {
+	 row = mysql_fetch_row(result);
+	 fieldLength = mysql_fetch_lengths(result);
+	 qFields = mysql_num_fields(result);
+      }
+   }
+   
 }

__mysql.h

@@ -1,10 +1,11 @@
-#ifndef __mysql_h__
-#define __mysql_h__
+#ifndef ____mysql_h__
+#define ____mysql_h__
 
 #include "Tag.h"
 #include "ZString.h"
 #include "MString.h"
 #include <sstream>
+#include <mysql/mysql.h>
 
 namespace jet {
 
@@ -12,7 +13,18 @@ namespace jet {
 
     public:
       __mysql(coreutils::ZString &in, coreutils::MString &parent, Global &global);
+      ~__mysql();
 
+      void query(coreutils::MString query);
+      
+    private:
+      MYSQL *mysql;
+      MYSQL_RES *result;
+      MYSQL_ROW row;
+      unsigned long *fieldLength;
+      unsigned int qFields;
+      coreutils::MString sessionId;
+      
    };
 
 }

__sql.cpp

@@ -0,0 +1,22 @@
+#include "__sql.h"
+#include "Exception.h"
+#include "MString.h"
+#include "__mysql.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+namespace jet {
+   
+   __sql::__sql(coreutils::ZString &in, coreutils::MString &out, Global &global) : Tag(in, out, global) {
+      if(!hasContainer)
+	throw coreutils::Exception("sql tag must have a container.");	
+      if(!global.sessionExists(variables["sessionid"]))
+	coreutils::Exception("sessionid does not exist.");
+
+      global.sessions[variables["sessionid"]]->query(container);
+      
+   }
+   
+}

__sql.h

@@ -0,0 +1,17 @@
+#ifndef ____sql_h__
+#define ____sql_h__
+
+#include "Tag.h"
+
+namespace jet {
+   
+   class __sql : public Tag {
+   
+    public:
+      __sql(coreutils::ZString &in, coreutils::MString &out, Global &global);
+      
+   };
+      
+}
+
+#endif

compile

@@ -18,7 +18,7 @@ done
 
 wait
 echo -n "Building executable testjet..."
-g++ -g -o testjet $list -std=c++23 -L../CoreUtils -lCoreUtils
+g++ -g -o testjet $list -std=c++23 -L../CoreUtils -lCoreUtils -lmysqlclient
 if [ $? = '0' ]
 then
  echo "OK"