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/*************************************************************************** |
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* * |
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* Copyright (C) 2007 Grigor Iliev * |
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* * |
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* This program 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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* * |
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* This program 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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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, * |
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* MA 02110-1301 USA * |
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***************************************************************************/ |
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|
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#include "../common/global.h" |
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|
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#if HAVE_SQLITE3 |
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|
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#ifndef __LS_INSTRUMENTSDB_H__ |
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#define __LS_INSTRUMENTSDB_H__ |
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|
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#include <sqlite3.h> |
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#include <vector> |
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#include <sys/stat.h> |
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#include <gig.h> |
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#include "../common/Mutex.h" |
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#include "../EventListeners.h" |
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|
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namespace LinuxSampler { |
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|
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class DbInstrument { |
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public: |
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String InstrFile; |
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int InstrNr; |
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String FormatFamily; |
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String FormatVersion; |
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long long int Size; |
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String Created; |
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String Modified; |
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String Description; |
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bool IsDrum; |
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String Product; |
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String Artists; |
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String Keywords; |
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|
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DbInstrument() { } |
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DbInstrument(const DbInstrument& Instr) { Copy(Instr); } |
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void operator=(const DbInstrument& Instr) { Copy(Instr); } |
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void Copy(const DbInstrument&); |
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}; |
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|
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class DbDirectory { |
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public: |
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String Created; |
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String Modified; |
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String Description; |
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|
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DbDirectory() { } |
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DbDirectory(const DbDirectory& Dir) { Copy(Dir); } |
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void operator=(const DbDirectory& Dir) { Copy(Dir); } |
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void Copy(const DbDirectory&); |
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}; |
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|
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typedef std::auto_ptr<std::vector<int> > IntListPtr; |
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typedef std::auto_ptr<std::vector<String> > StringListPtr; |
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|
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/** |
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* @brief Provides access to the instruments database. |
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*/ |
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class InstrumentsDb { |
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public: |
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|
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/** |
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* This class is used as a listener, which is notified when |
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* changes to the instruments database are made. |
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*/ |
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class Listener { |
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public: |
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/** |
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* Invoked when the number of instrument directories |
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* in a specific directory has changed. |
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* @param Dir The absolute pathname of the directory in |
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* which the number of directories is changed. |
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*/ |
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virtual void DirectoryCountChanged(String Dir) = 0; |
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|
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/** |
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* Invoked when the settings of an instrument directory |
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* are changed. |
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* @param Dir The absolute pathname of the directory |
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* whose settings are changed. |
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*/ |
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virtual void DirectoryInfoChanged(String Dir) = 0; |
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|
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/** |
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* Invoked when an instrument directory is renamed. |
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* @param Dir The old absolute pathname of the directory. |
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* @param NewName The new name of the directory. |
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*/ |
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virtual void DirectoryNameChanged(String Dir, String NewName) = 0; |
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|
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/** |
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* Invoked when the number of instruments |
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* in a specific directory has changed. |
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* @param Dir The absolute pathname of the directory in |
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* which the number of instruments is changed. |
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*/ |
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virtual void InstrumentCountChanged(String Dir) = 0; |
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|
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/** |
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* Invoked when the settings of an instrument are changed. |
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* @param Instr The absolute pathname of the instrument |
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* whose settings are changed. |
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*/ |
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virtual void InstrumentInfoChanged(String Instr) = 0; |
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|
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/** |
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* Invoked when an instrument is renamed. |
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* @param Instr The old absolute pathname of the instrument. |
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* @param NewName The new name of the directory. |
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*/ |
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virtual void InstrumentNameChanged(String Instr, String NewName) = 0; |
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}; |
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|
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/** |
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* Registers the specified listener to be notified |
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* when changes to the instruments database are made. |
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*/ |
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void AddInstrumentsDbListener(InstrumentsDb::Listener* l); |
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|
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/** |
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* Removes the specified listener. |
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*/ |
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void RemoveInstrumentsDbListener(InstrumentsDb::Listener* l); |
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|
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/** |
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* This method is used to access the instruments database. |
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*/ |
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static InstrumentsDb* GetInstrumentsDb(); |
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|
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/** |
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* Sets the absolute path name of the instruments database file to use. |
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* The instruments database file location should be set before |
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* any attempt to access the database and once set could not be changed. |
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* @throws Exception - if an empty string is provided or if |
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* the method is called more than once. |
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*/ |
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void SetDbFile(String File); |
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|
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/** |
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* Gets the number of directories in the specified directory. |
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* @param Dir The absolute path name of the directory. |
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* @throws Exception - if database error occurs, or |
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* the specified path name is invalid. |
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* @returns The number of directories in the specified directory. |
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*/ |
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int GetDirectoryCount(String Dir); |
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|
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/** |
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* Gets the list of directories in the specified directory. |
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* @param Dir The absolute path name of the directory. |
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* @throws Exception - if database error occurs, or |
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* the specified path name is invalid. |
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*/ |
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StringListPtr GetDirectories(String Dir); |
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|
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/** |
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* Adds the specified directory to the database. |
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* @param Dir The absolute path name of the directory to add. |
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* @throws Exception - if database error occurs, or the |
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* specified path is invalid. |
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*/ |
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void AddDirectory(String Dir); |
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|
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/** |
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* Removes the specified directory from the database. |
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* @param Dir The absolute path name of the directory to remove. |
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* @throws Exception - If the specified path is invalid, or |
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* Force is false and the specified directory is |
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* not empty, or if database error occurs. |
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*/ |
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void RemoveDirectory(String Dir, bool Force = false); |
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|
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/** |
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* Determines whether the specified directory exists in the database. |
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* @throws Exception - If database error occurs. |
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*/ |
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bool DirectoryExist(String Dir); |
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|
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/** |
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* Gets information about the specified directory. |
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* @param Dir The absolute path name of the directory. |
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* @throws Exception - if database error occurs, or if |
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* the specified directory is not found. |
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*/ |
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DbDirectory GetDirectoryInfo(String Dir); |
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|
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/** |
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* Renames the specified directory. |
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* @param Dir The absolute path name of the directory to rename. |
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* @param Name The new name for the directory. |
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* @throws Exception - In case the given directory does not exists, |
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* or the specified name is not a valid name, |
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* or if a directory with name equal to the new name already |
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* exists, or if database error occurs. |
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*/ |
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void RenameDirectory(String Dir, String Name); |
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|
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/** |
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* Moves the specified directory into the specified location. |
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* @param Dir The absolute path name of the directory to move. |
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* @param Dst The location where the directory will be moved to. |
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* @throws Exception - In case a given directory does not exists, |
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* or if a directory with name equal to the directory name already |
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* exists in the specified destination directory, or if database error |
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* occurs. Error is also thrown when trying to move a directory to a |
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* subdirectory of itself. |
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*/ |
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void MoveDirectory(String Dir, String Dst); |
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|
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/** |
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* Changes the description of the specified directory. |
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* @throws Exception - if database error occurs, or if |
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* the specified directory is not found. |
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*/ |
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void SetDirectoryDescription(String Dir, String Desc); |
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|
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/** |
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* Adds the instruments in the specified file or |
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* directory to the specified instruments database directory. |
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* @param DbDir The absolute path name of a directory in the |
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* instruments database in which only the new instruments |
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* (that are not already in the database) will be added. |
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* @param FilePath The absolute path name of a file or |
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* directory in the file system. In case a directory is |
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* supplied, all supported instruments in the specified directory |
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* will be added to the instruments database, including the |
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* instruments in the subdirectories. The respective subdirectory |
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* structure will be recreated in the supplied database directory. |
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* @param Index The index of the instrument (in the given |
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* instrument file) to add. If -1 is specified, all instruments in |
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* the supplied instrument file will be added. Error is thrown if |
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* a directory is supplied and Index is not equal to -1. |
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* @throws Exception if the operation failed. |
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*/ |
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void AddInstruments(String DbDir, String FilePath, int Index = -1); |
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|
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/** |
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* Adds all supported instruments in the specified directory |
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* to the specified instruments database directory. The |
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* instruments in the subdirectories will not be processed |
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* @param DbDir The absolute path name of a directory in the |
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* instruments database in which only the new instruments |
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* (that are not already in the database) will be added. |
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* @param FsDir The absolute path name of a directory in the file |
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* system. |
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* @throws Exception if the operation failed. |
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*/ |
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void AddInstrumentsNonrecursive(String DbDir, String FsDir); |
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|
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/** |
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* Adds all supported instruments in the specified file system |
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* direcotry to the specified instruments database directory, |
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* including the instruments in the subdirectories of the |
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* supplied directory. |
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* @param DbDir The absolute path name of a directory in the |
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* instruments database in which only the new instruments |
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* (that are not already in the database) will be added. |
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* @param FsDir The absolute path name of an existing |
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* directory in the file system. |
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* @param Flat If true, the respective subdirectory structure will |
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* not be recreated in the instruments database and all instruments |
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* will be added directly in the specified database directory. |
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* @throws Exception if the operation failed. |
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*/ |
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void AddInstrumentsRecursive(String DbDir, String FsDir, bool Flat = false); |
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|
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/** |
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* Gets the number of instruments in the specified directory. |
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* @param Dir The absolute path name of the directory. |
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* @throws Exception - if database error occurs, or |
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* the specified path name is invalid. |
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* @returns The number of instruments in the specified directory. |
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*/ |
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int GetInstrumentCount(String Dir); |
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|
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/** |
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* Gets the list of instruments in the specified directory. |
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* @param Dir The absolute path name of the directory. |
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* @throws Exception - if database error occurs, or |
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* the specified path name is invalid. |
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*/ |
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StringListPtr GetInstruments(String Dir); |
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|
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/** |
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* Removes the specified instrument from the database. |
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* @param Instr The absolute path name of the instrument to remove. |
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* @throws Exception - If the specified instrument does not exist, |
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* or database error occurs. |
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*/ |
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void RemoveInstrument(String Instr); |
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|
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/** |
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* Gets information about the specified instrument. |
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* @param Instr The absolute path name of the instrument. |
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* @throws Exception - if database error occurs, or if |
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* the specified instrument is not found. |
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*/ |
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DbInstrument GetInstrumentInfo(String Instr); |
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|
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/** |
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* Renames the specified instrument. |
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* @param Instr The absolute path name of the instrument to rename. |
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* @param Name The new name for the instrument. |
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* @throws Exception - In case the given instrument does not exists, |
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* or the specified name is not a valid name, or if an instrument |
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* with name equal to the new name already exists, or |
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* if database error occurs. |
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*/ |
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void RenameInstrument(String Instr, String Name); |
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|
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/** |
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* Moves the specified instrument into the specified directory. |
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* @param Instr The absolute path name of the instrument to move. |
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* @param Dst The directory where the instrument will be moved to. |
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* @throws Exception - In case the given directory or instrument |
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* does not exist, or if an instrument with name equal to the name |
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* of the specified instrument already exists in the specified |
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* destination directory, or if database error occurs. |
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*/ |
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void MoveInstrument(String Instr, String Dst); |
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|
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/** |
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* Changes the description of the specified instrument. |
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* @throws Exception - if database error occurs, or if |
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* the specified instrument is not found. |
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*/ |
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void SetInstrumentDescription(String Instr, String Desc); |
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|
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/** |
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* Closes the database connection if opened and deletes |
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* the InstrumentsDb instance. |
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*/ |
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static void Destroy(); |
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|
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|
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private: |
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sqlite3* db; |
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String DbFile; |
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static InstrumentsDb* pInstrumentsDb; |
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Mutex DbInstrumentsMutex; |
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ListenerList<InstrumentsDb::Listener*> llInstrumentsDbListeners; |
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|
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InstrumentsDb(); |
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~InstrumentsDb(); |
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|
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/** |
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* Gets the instruments database. If the database is not |
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* opened, a connection to the database is established first. |
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* @returns The instruments database. |
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* @throws Exception if fail to open the database. |
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*/ |
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sqlite3* GetDb(); |
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|
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/** |
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* Gets the number of directories in the directory |
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* with ID DirId. |
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* @returns The number of directories in the specified directory |
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* or -1 if the directory doesn't exist. |
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*/ |
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int GetDirectoryCount(int DirId); |
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|
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/** |
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* Gets a list containing the IDs of all directories in |
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* the specified instrument directory. |
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* @returns The IDs of all directories in the specified directory. |
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* @throws Exception - if database error occurs. |
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*/ |
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IntListPtr GetDirectoryIDs(int DirId); |
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|
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/** |
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* Gets the directory ID. |
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* @param Dir The absolute path name of the directory. |
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* @returns The directory ID or -1 if the directory is not found. |
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* @throws Exception - if database error occurs. |
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*/ |
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int GetDirectoryId(String Dir); |
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|
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/** |
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* Gets the directory ID. |
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* @param ParentDirId The ID of the parent directory. |
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* @param DirName The directory name. |
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* @throws Exception - if database error occurs. |
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* @returns The ID of the specified directory |
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* or -1 if the directory doesn't exist. |
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*/ |
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int GetDirectoryId(int ParentDirId, String DirName); |
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|
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/** |
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* Removes the specified directory from the database. |
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* @param DirId The ID of the directory to remove. |
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* @throws Exception - If the specified directory is not empty. |
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*/ |
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void RemoveDirectory(int DirId); |
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|
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/** |
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* Removes all directories in the specified directory. |
414 |
* Do NOT call this method before ensuring that all |
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* directories in the specified directory are empty. |
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* @param DirId The ID of the directory. |
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* @throws Exception - if at least one of the directories in the |
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* specified directory is not empty or if database error occurs. |
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* @see IsDirectoryEmpty |
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*/ |
421 |
void RemoveAllDirectories(int DirId); |
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|
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/** |
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* Determines whether the specified directory is empty. |
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* If the directory doesn't exist the return value is false. |
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* @throws Exception - if database error occurs. |
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*/ |
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bool IsDirectoryEmpty(int DirId); |
429 |
|
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/** |
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* Removes the content of the specified directory from the database. |
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* @param DirId The ID of the directory. |
433 |
* @param Level Used to prevent stack overflow, which may occur |
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* due to large or infinite recursive loop. |
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* @throws Exception - If database error occurs. |
436 |
*/ |
437 |
void RemoveDirectoryContent(int DirId, int Level = 0); |
438 |
|
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/** |
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* Gets the ID of the specified database instrument. |
441 |
* @param Instr The absolute path name of the instrument. |
442 |
* @returns The instrument ID or -1 if the instrument is not found. |
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* @throws Exception - if database error occurs. |
444 |
*/ |
445 |
int GetInstrumentId(String Instr); |
446 |
|
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/** |
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* Gets the ID of the specified database instrument. |
449 |
* @param DirId The ID of the directory containing the instrument. |
450 |
* @param InstrName The name of the instrument. |
451 |
* @returns The instrument ID or -1 if the instrument is not found. |
452 |
* @throws Exception - if database error occurs. |
453 |
*/ |
454 |
int GetInstrumentId(int DirId, String InstrName); |
455 |
|
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/** |
457 |
* Removes the specified instrument from the database. |
458 |
* @param InstrId The ID of the instrument to remove. |
459 |
* @throws Exception - If the specified instrument does not exist. |
460 |
*/ |
461 |
void RemoveInstrument(int InstrId); |
462 |
|
463 |
/** |
464 |
* Removes all instruments in the specified directory. |
465 |
* @param DirId The ID of the directory. |
466 |
* @throws Exception - if database error occurs. |
467 |
*/ |
468 |
void RemoveAllInstruments(int DirId); |
469 |
|
470 |
/** |
471 |
* Gets the number of instruments in the directory |
472 |
* with ID DirId. |
473 |
* @returns The number of instruments in the specified directory |
474 |
* or -1 if the directory doesn't exist. |
475 |
*/ |
476 |
int GetInstrumentCount(int DirId); |
477 |
|
478 |
/** |
479 |
* Gets a list containing the IDs of all instruments in |
480 |
* the specified instrument directory. |
481 |
* @returns The IDs of all instruments in the specified directory. |
482 |
* @throws Exception - if database error occurs. |
483 |
*/ |
484 |
IntListPtr GetInstrumentIDs(int DirId); |
485 |
|
486 |
/** |
487 |
* Adds the instruments in the specified file |
488 |
* to the specified instruments database directory. |
489 |
* @param DbDir The absolute path name of a directory in the |
490 |
* instruments database in which only the new instruments |
491 |
* (that are not already in the database) will be added. |
492 |
* @param File The absolute path name of a file in the file system. |
493 |
* @param Index The index of the instrument (in the given |
494 |
* instrument file) to add. If -1 is specified, all instruments in |
495 |
* the supplied instrument file will be added. |
496 |
* @throws Exception if the operation failed. |
497 |
*/ |
498 |
void AddInstrumentsFromFile(String DbDir, String File, int Index = -1); |
499 |
|
500 |
/** |
501 |
* Adds the specified GIG instrument(s) to the specified location |
502 |
* in the instruments database. |
503 |
* @param DbDir The instruments database directory |
504 |
* in which the instrument will be added. |
505 |
* @param File The absolute path name of the instrument file. |
506 |
* @param Index The index of the instrument (in the given |
507 |
* instrument file) to add. If -1 is specified, all instruments in |
508 |
* the supplied instrument file will be added. |
509 |
* @throws Exception if the operation failed. |
510 |
*/ |
511 |
void AddGigInstruments(String DbDir, String File, int Index = -1); |
512 |
|
513 |
/** |
514 |
* Adds the specified GIG instrument. |
515 |
* @throws Exception if the operation failed. |
516 |
*/ |
517 |
void AddGigInstrument(sqlite3_stmt* pStmt, String DbDir, int DirId, String File, ::gig::Instrument* pInstrument, int Index); |
518 |
|
519 |
/** |
520 |
* Used to execute SQL commands which return empty result set. |
521 |
*/ |
522 |
void ExecSql(String Sql); |
523 |
|
524 |
/** |
525 |
* Used to execute SQL commands which return empty result set. |
526 |
*/ |
527 |
void ExecSql(String Sql, String Param); |
528 |
|
529 |
/** |
530 |
* Used to execute SQL commands which returns integer. |
531 |
*/ |
532 |
int ExecSqlInt(String Sql); |
533 |
|
534 |
/** |
535 |
* Used to execute SQL commands which returns integer. |
536 |
*/ |
537 |
int ExecSqlInt(String Sql, String Param); |
538 |
|
539 |
/** |
540 |
* Used to execute SQL commands which returns integer. |
541 |
*/ |
542 |
String ExecSqlString(String Sql); |
543 |
|
544 |
/** |
545 |
* Used to execute SQL commands which returns integer list. |
546 |
*/ |
547 |
IntListPtr ExecSqlIntList(String Sql); |
548 |
|
549 |
/** |
550 |
* Used to execute SQL commands which returns string list. |
551 |
*/ |
552 |
StringListPtr ExecSqlStringList(String Sql); |
553 |
|
554 |
/** |
555 |
* Binds the specified text parameter. |
556 |
*/ |
557 |
void BindTextParam(sqlite3_stmt* pStmt, int Index, String Text); |
558 |
|
559 |
/** |
560 |
* Binds the specified integer parameter. |
561 |
*/ |
562 |
void BindIntParam(sqlite3_stmt* pStmt, int Index, int Param); |
563 |
|
564 |
/** |
565 |
* Checks whether an instrument with the specified name already |
566 |
* exists in the specified directory and if so a new unique name |
567 |
* is returnded. The new name is generated by adding the suffix |
568 |
* [<nr>] to the end of the name , where <nr> is a number between |
569 |
* 2 and 1000. |
570 |
* throws Exception if cannot find an unique name. This is done |
571 |
* because it is highly unlikely that this can happen, so it is |
572 |
* supposed that this is due to a bug or an infinite loop. |
573 |
*/ |
574 |
String GetUniqueInstrumentName(int DirId, String Name); |
575 |
|
576 |
void FireDirectoryCountChanged(String Dir); |
577 |
void FireDirectoryInfoChanged(String Dir); |
578 |
void FireDirectoryNameChanged(String Dir, String NewName); |
579 |
void FireInstrumentCountChanged(String Dir); |
580 |
void FireInstrumentInfoChanged(String Instr); |
581 |
void FireInstrumentNameChanged(String Instr, String NewName); |
582 |
|
583 |
/** |
584 |
* Strips the non-directory suffix from the file name. If the string |
585 |
* ends with `/' only the last character is removed. If the string |
586 |
* doesn't starts with `/' charater, an empty string is returned. |
587 |
*/ |
588 |
static String GetDirectoryPath(String File); |
589 |
|
590 |
/** |
591 |
* Returns the file name extracted from the specified absolute path |
592 |
* name. If the string doesn't starts with `/' or ends with `/', |
593 |
* an empty string is returned. |
594 |
*/ |
595 |
static String GetFileName(String Path); |
596 |
|
597 |
/** |
598 |
* Strips the last directory from the specified path name. If the |
599 |
* string doesn't starts with `/' an empty string is returned. |
600 |
*/ |
601 |
static String GetParentDirectory(String Dir); |
602 |
|
603 |
/** |
604 |
* Checks whether the specified path is valid. |
605 |
* @throws Exception - if the specified path is invalid. |
606 |
*/ |
607 |
static void CheckPathName(String Path); |
608 |
|
609 |
/** |
610 |
* Checks whether the specified file name is valid. |
611 |
* @throws Exception - if the specified file name is invalid. |
612 |
*/ |
613 |
static void CheckFileName(String File); |
614 |
}; |
615 |
|
616 |
/** |
617 |
* This class is used for recursive |
618 |
*/ |
619 |
class DirectoryScanner { |
620 |
public: |
621 |
/** |
622 |
* Recursively scans all subdirectories of the specified |
623 |
* directory and adds the supported instruments to the database. |
624 |
* @throws Exception - if the specified directories are invalid. |
625 |
*/ |
626 |
static void Scan(String DbDir, String FsDir, bool Flat); |
627 |
|
628 |
private: |
629 |
static String DbDir; |
630 |
static String FsDir; |
631 |
static bool Flat; |
632 |
static int FtwCallback(const char* fpath, const struct stat* sb, int typeflag); |
633 |
}; |
634 |
|
635 |
} // namespace LinuxSampler |
636 |
|
637 |
#endif // __LS_INSTRUMENTSDB_H__ |
638 |
|
639 |
#endif // HAVE_SQLITE3 |