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35 /*! \libinternal \file
37 * Declares gmx::AnalysisDataModuleManager.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_analysisdata
43 #ifndef GMX_ANALYSISDATA_DATAMODULEMANAGER_H
44 #define GMX_ANALYSISDATA_DATAMODULEMANAGER_H
46 #include "abstractdata.h"
48 #include "../utility/common.h"
53 class AnalysisDataParallelOptions;
55 /*! \libinternal \brief
56 * Encapsulates handling of data modules attached to AbstractAnalysisData.
59 * \ingroup module_analysisdata
61 class AnalysisDataModuleManager
65 * Identifies data properties to check with data modules.
67 * \see AnalysisDataModuleInterface::Flag
71 eMultipleDataSets, //!< Data has multiple data sets.
72 eMultipleColumns, //!< Data has multiple columns.
73 eMultipoint, //!< Data is multipoint.
74 eDataPropertyNR //!< Number of properties; for internal use only.
77 AnalysisDataModuleManager();
78 ~AnalysisDataModuleManager();
81 * Allows the manager to check modules for compatibility with the data.
83 * \throws APIError if any data module already added is not compatible
84 * with the new setting.
86 * Does two things: checks any modules already attached to the data and
87 * throws if any of them is not compatible, and stores the property
88 * to check modules attached in the future.
90 * Strong exception safety.
92 void dataPropertyAboutToChange(DataProperty property, bool bSet);
95 * Whether there are modules that do not support parallel processing.
97 * Must not be called before notifyDataStart()/notifyParallelDataStart().
98 * If notifyDataStart() has been called, returns true if there are any
99 * modules (all modules are treated as serial).
103 bool hasSerialModules() const;
106 * Adds a module to process the data.
108 * \param data Data object to add the module to.
109 * \param module Module to add.
110 * \throws std::bad_alloc if out of memory.
111 * \throws APIError if
112 * - \p module is not compatible with the data object
113 * - data has already been added to the data object and everything
114 * is not available through getDataFrame().
115 * \throws unspecified Any exception thrown by \p module in its
116 * notification methods (if data has been added).
118 * \see AbstractAnalysisData::addModule()
120 void addModule(AbstractAnalysisData *data,
121 AnalysisDataModulePointer module);
123 * Applies a module to process data that is ready.
125 * \param data Data object to apply the module to.
126 * \param module Module to apply.
127 * \throws APIError in same situations as addModule().
128 * \throws unspecified Any exception thrown by \p module in its
129 * notification methods.
131 * \see AbstractAnalysisData::applyModule()
133 void applyModule(AbstractAnalysisData *data,
134 AnalysisDataModuleInterface *module);
137 * Notifies attached modules of the start of serial data.
139 * \param data Data object that is starting.
140 * \throws APIError if any attached data module is not compatible.
141 * \throws unspecified Any exception thrown by attached data modules
142 * in AnalysisDataModuleInterface::dataStarted().
144 * Should be called once, after data properties have been set with
145 * the methods in AbstractAnalysisData, and before any other
146 * notification methods.
147 * The caller should be prepared for requestStorage() calls to \p data
148 * from the attached modules.
150 * \p data should typically be \c this when calling from a class
151 * derived from AbstractAnalysisData.
153 * This method initializes all modules for serial processing by calling
154 * AnalysisDataModuleInterface::dataStarted().
156 void notifyDataStart(AbstractAnalysisData *data);
158 * Notifies attached modules of the start of parallel data.
160 * \param data Data object that is starting.
161 * \param[in] options Parallelization properties of the input data.
162 * \throws APIError if any attached data module is not compatible.
163 * \throws unspecified Any exception thrown by attached data modules
164 * in AnalysisDataModuleInterface::parallelDataStarted().
166 * Can be called instead of notifyDataStart() if \p data supports
167 * non-sequential creation of frames. Works as notifyDataStart(),
168 * but instead calls AnalysisDataModuleInterface::parallelDataStarted()
169 * and records whether the module supports the parallel mode.
170 * Subsequent notification calls then notify the modules according to
171 * the mode they accept.
173 * See notifyDataStart() for general constraints.
175 void notifyParallelDataStart(
176 AbstractAnalysisData *data,
177 const AnalysisDataParallelOptions &options);
179 * Notifies attached serial modules of the start of a frame.
181 * \param[in] header Header information for the frame that is starting.
182 * \throws unspecified Any exception thrown by attached data modules
183 * in AnalysisDataModuleInterface::frameStarted().
185 * Should be called once for each frame, before notifyPointsAdd() calls
188 void notifyFrameStart(const AnalysisDataFrameHeader &header) const;
190 * Notifies attached parallel modules of the start of a frame.
192 * \param[in] header Header information for the frame that is starting.
193 * \throws unspecified Any exception thrown by attached data modules
194 * in AnalysisDataModuleInterface::frameStarted().
196 * If notifyParallelDataStart() has been called, should be called once
197 * for each frame, before notifyParallelPointsAdd() calls for that
199 * It is allowed to call this method in any order for the frames, but
200 * should be called exactly once for each frame.
202 void notifyParallelFrameStart(const AnalysisDataFrameHeader &header) const;
204 * Notifies attached serial modules of the addition of points to the
207 * \param[in] points Set of points added (also provides access to
209 * \throws APIError if any attached data module is not compatible.
210 * \throws unspecified Any exception thrown by attached data modules
211 * in AnalysisDataModuleInterface::pointsAdded().
213 * Can be called zero or more times for each frame.
214 * The caller should ensure that any column occurs at most once in the
215 * calls, unless the data is multipoint.
216 * For efficiency reasons, calls to this method should be aggregated
217 * whenever possible, i.e., it's better to handle multiple columns or
218 * even the whole frame in a single call rather than calling the method
219 * for each column separately.
221 void notifyPointsAdd(const AnalysisDataPointSetRef &points) const;
223 * Notifies attached parallel modules of the addition of points to a frame.
225 * \param[in] points Set of points added (also provides access to
227 * \throws APIError if any attached data module is not compatible.
228 * \throws unspecified Any exception thrown by attached data modules
229 * in AnalysisDataModuleInterface::pointsAdded().
231 * See notifyPointsAdd() for information on the structure of the point
234 void notifyParallelPointsAdd(const AnalysisDataPointSetRef &points) const;
236 * Notifies attached serial modules of the end of a frame.
238 * \param[in] header Header information for the frame that is ending.
239 * \throws unspecified Any exception thrown by attached data modules
240 * in AnalysisDataModuleInterface::frameFinished().
242 * Should be called once for each call of notifyFrameStart(), after any
243 * notifyPointsAdd() calls for the frame.
244 * \p header should be identical to that used in the corresponding
245 * notifyFrameStart() call.
247 void notifyFrameFinish(const AnalysisDataFrameHeader &header) const;
249 * Notifies attached parallel modules of the end of a frame.
251 * \param[in] header Header information for the frame that is ending.
252 * \throws unspecified Any exception thrown by attached data modules
253 * in AnalysisDataModuleInterface::frameFinished().
255 * Should be called once for each call of notifyParallelFrameStart(),
256 * after any notifyParallelPointsAdd() calls for the frame.
257 * \p header should be identical to that used in the corresponding
258 * notifyParallelFrameStart() call.
260 void notifyParallelFrameFinish(const AnalysisDataFrameHeader &header) const;
262 * Notifies attached modules of the end of data.
264 * \throws unspecified Any exception thrown by attached data modules
265 * in AnalysisDataModuleInterface::dataFinished().
267 * Should be called once, after all the other notification calls.
269 void notifyDataFinish() const;
274 PrivateImplPointer<Impl> impl_;