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00001 /********************************************************************* 00002 * Software License Agreement (BSD License) 00003 * 00004 * Copyright (c) 2010, Willow Garage, Inc. 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * * Redistributions in binary form must reproduce the above 00014 * copyright notice, this list of conditions and the following 00015 * disclaimer in the documentation and/or other materials provided 00016 * with the distribution. 00017 * * Neither the name of the Willow Garage nor the names of its 00018 * contributors may be used to endorse or promote products derived 00019 * from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 00024 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 00025 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 00026 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 00027 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00028 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 00029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 00031 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00032 * POSSIBILITY OF SUCH DAMAGE. 00033 *********************************************************************/ 00034 00035 #ifndef _DB_TASK_DISPATCHER_H_ 00036 #define _DB_TASK_DISPATCHER_H_ 00037 00038 #include <vector> 00039 #include <string> 00040 #include <map> 00041 00042 #include "plugin.h" 00043 00044 namespace db_planner { 00045 class DatabaseManager; 00046 class TaskRecord; 00047 } 00048 00049 namespace graspit_dbase_tasks { 00050 00051 class DBTask; 00052 class DBTaskDispatcher; 00053 00055 class DBTaskCreator 00056 { 00057 public: 00058 virtual DBTask* operator()(DBTaskDispatcher *disp, db_planner::DatabaseManager *mgr, db_planner::TaskRecord rec) = 0; 00059 }; 00060 00062 00084 class DBTaskDispatcher : public Plugin 00085 { 00086 public: 00087 enum Status {READY, NO_TASK, ERROR, RUNNING, DONE}; 00088 private: 00090 std::map<std::string,DBTaskCreator*> mTaskCreators; 00091 00093 db_planner::DatabaseManager *mDBMgr; 00094 00096 DBTask *mCurrentTask; 00097 00099 Status mStatus; 00100 00102 int mCompletedTasks; 00103 00105 int mMaxTasks; 00106 00108 std::vector<std::string> mAcceptedTaskTypes; 00109 00111 int connect(std::string host, int port, std::string username, 00112 std::string password, std::string database); 00113 00114 public: 00115 DBTaskDispatcher(); 00116 ~DBTaskDispatcher(); 00117 00119 int init(int argc, char **argv); 00120 00122 void checkCurrentTask(); 00123 00125 void startNewTask(); 00126 00128 void registerTaskCreator(std::string task_name, DBTaskCreator* creator) 00129 { 00130 mTaskCreators[task_name] = creator; 00131 mAcceptedTaskTypes.push_back(task_name); 00132 } 00133 00135 int mainLoop(); 00136 00138 Status getStatus() const {return mStatus;} 00139 }; 00140 00141 } //namespace dbase_tasks 00142 00143 #endif