370 lines
12 KiB
C
370 lines
12 KiB
C
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2015,
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Faculty of Mathematics and Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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//[$][\$]
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//[_][\_]
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*/
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#ifndef ALGEBRAS_DISTRIBUTED2_CONNECTIONINFO_H_
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#define ALGEBRAS_DISTRIBUTED2_CONNECTIONINFO_H_
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#include "SecondoInterfaceCS.h"
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#include "NestedList.h"
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#include "CommandLog.h"
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#include "CommandLogger.h"
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namespace distributed2
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{
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template<class T>class TimeoutNotifier;
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template<class T>class HeartbeatObserver;
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/*
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0 Class ConnectionInfo
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This class represents a connection to a remote Secondo Server.
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*/
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class ConnectionInfo
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{
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public:
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ConnectionInfo(const std::string& _host,
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const int _port,
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const std::string& _config,
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SecondoInterfaceCS* _si,
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NestedList* _mynl,
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const size_t timeout = 0,
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const int heartbeat=0);
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virtual ~ConnectionInfo();
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void deleteIfAllowed();
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ConnectionInfo* copy(){
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boost::lock_guard<boost::mutex> guard(norefmtx);
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noReferences++;
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return this;
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}
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size_t getNoReferences() {
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boost::lock_guard<boost::mutex> guard(norefmtx);
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return noReferences;
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}
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bool reconnect(bool showCommands, CommandLog& log, const size_t timeout=0,
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const int heartbeat=0);
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std::string getHost() const;
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int getPort() const;
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std::string getConfig() const;
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bool check(bool showCommands, CommandLog& commandLog,
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const size_t timeout=0);
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void setId(const int i);
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void simpleCommand(std::string command1,
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int& err,
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std::string& result,
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bool rewrite,
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double& runtime,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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std::string getSecondoHome(bool showCommands,
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CommandLog& commandLog);
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bool cleanUp(bool showCommands,
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CommandLog& commandLog,
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const size_t timeout=0);
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bool cleanUp1( const size_t timeout=0);
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bool switchDatabase(const std::string& dbname,
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bool createifnotexists,
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bool showCommands,
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bool forceExec = false,
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const size_t timeout=0);
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void simpleCommand(const std::string& command1,
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int& error,
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std::string& errMsg,
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std::string& resList,
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const bool rewrite,
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double& runtime,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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void simpleCommandFromList(const std::string& command1,
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int& error,
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std::string& errMsg,
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std::string& resList,
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const bool rewrite,
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double& runtime,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const int timeout = 0);
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void simpleCommand(const std::string& command1,
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int& error,
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std::string& errMsg,
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ListExpr& resList,
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const bool rewrite,
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double& runtime,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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int serverPid();
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int sendFile(const std::string& local,
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const std::string& remote,
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const bool allowOverwrite,
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const size_t timeout=0);
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int requestFile(const std::string& remote,
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const std::string& local,
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const bool allowOverwrite,
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const size_t timeout=0);
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std::string getRequestFolder();
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std::string getRequestPath();
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std::string getSendFolder();
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std::string getSendPath();
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static ConnectionInfo* createConnection(const std::string& host,
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const int port,
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std::string& config,
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const size_t timeout=0,
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const int heartbeat=0);
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bool createOrUpdateObject(const std::string& name,
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ListExpr typelist,
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Word& value,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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bool createOrUpdateRelation(const std::string& name,
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ListExpr typeList,
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Word& value,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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bool createOrUpdateRelationFromBinFile(const std::string& name,
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const std::string& filename,
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bool showCommands,
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CommandLog& commandLog,
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const bool allowOverwrite = true,
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bool forceExec = false,
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const size_t timeout=0);
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bool createOrUpdateAttributeFromBinFile(const std::string& name,
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const std::string& filename,
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bool showCommands,
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CommandLog& commandLog,
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const bool allowOverwrite = true,
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bool forceExec = false,
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const size_t timeout=0);
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static bool saveRelationToFile(ListExpr relType,
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Word& value,
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const std::string& filename);
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static bool saveAttributeToFile(ListExpr type,
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Word& value,
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const std::string& filename);
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static bool storeObjectToFile(const std::string& objName,
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Word& value,
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ListExpr typeList,
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const std::string& fileName);
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bool retrieve(const std::string& objName,
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ListExpr& resType,
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Word& result,
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bool checkType,
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bool showCommands,
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CommandLog& commandLog,
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const int fileIndex,
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bool forceExec ,
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const size_t timeout);
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bool retrieveRelation(const std::string& objName,
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ListExpr& resType,
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Word& result,
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bool showCommands,
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CommandLog& commandLog,
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const int fileIndex,
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bool forceExec = false,
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const size_t timeout=0);
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bool retrieveRelationInFile(const std::string& fileName,
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ListExpr& resType,
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Word& result,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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bool retrieveRelationFile(const std::string& objName,
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const std::string& fname1,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec =false,
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const size_t = 0);
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bool retrieveAnyFile(const std::string& remoteName,
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const std::string& localName,
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bool showCommands,
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CommandLog& commandLog,
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bool forceExec = false,
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const size_t timeout=0);
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static Word createRelationFromFile(const std::string& fname,
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ListExpr& resType);
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std::ostream& print(std::ostream& o) const;
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void setLogger(CommandLogger* cmdlog){
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this->cmdLog = cmdlog;
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}
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CommandLogger* getLogger() const{
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return cmdLog;
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}
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void setNum(const int num){
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this->num = num;
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}
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int getNum() const{
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return num;
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}
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void killConnection();
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void timeout();
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bool setHeartbeat(const int hb1, const int hb2){
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if(hb1<0 || hb2<0) return false;
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if(!si) return false;
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return si->setHeartbeat(hb1,hb2);
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}
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inline NestedList* getNL(){ return mynl; }
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inline SecondoInterfaceCS* getInterface(){
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return si;
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}
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std::string getActiveDatabase() const {
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return activeDatabase;
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}
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private:
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ConnectionInfo(const ConnectionInfo& s);
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void retrieveSecondoHome(bool showCommands,
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CommandLog& commandLog);
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void retrieveSecondoHome();
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std::string host;
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int port;
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std::string config;
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SecondoInterfaceCS* si;
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NestedList* mynl;
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int serverPID;
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std::string secondoHome;
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std::string requestFolder;
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std::string requestPath;
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std::string sendFolder;
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std::string sendPath;
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std::string activeDatabase;
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boost::mutex norefmtx;
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typedef boost::recursive_mutex mutex_type;
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typedef boost::lock_guard<mutex_type> guard_type;
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mutex_type simtx; // mutex for synchronizing
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// access to the interface
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CommandLogger* cmdLog; // if this is nor null, commands are
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// written to log instead of sending
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// to the server
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int num; // some number that can be used to store additional information
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size_t noReferences;
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HeartbeatObserver<ConnectionInfo>* hbobserver;
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TimeoutNotifier<ConnectionInfo>* tonotifier;
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void startTimeout(int seconds, bool acceptMessages);
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void stopTimeout(const bool msg);
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};
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std::ostream& operator<<(std::ostream& o, const ConnectionInfo& sc);
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/*
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0.16 ~showError~
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*/
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void showError(const ConnectionInfo* ci, const std::string& command ,
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const int errorCode, const std::string& errorMessage);
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void showError(const SecondoInterfaceCS* ci, const std::string& command ,
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const int errorCode, const std::string& errorMessage);
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} /* namespace distributed2 */
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#endif /* ALGEBRAS_DISTRIBUTED2_CONNECTIONINFO_H_ */
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