Gromacs
2022.2
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#include <gromacs/analysisdata/dataproxy.h>
Internal implementation class used to implement column modules.
This class serves as a proxy between AbstractAnalysisData and the attached IAnalysisDataModule object. For each notification that AbstractAnalysisData sends, it maps it such that only the relevant columns are visible to the IAnalysisDataModule. Similarly, it implements the frame access methods of AbstractAnalysisData such that only the relevant columns are returned.
Public Member Functions | |
AnalysisDataProxy (int firstColumn, int columnSpan, AbstractAnalysisData *data) | |
Creates a proxy object that only presents certain columns. More... | |
int | frameCount () const override |
Returns the total number of frames in the data. More... | |
int | flags () const override |
Returns properties supported by the module. More... | |
void | dataStarted (AbstractAnalysisData *data) override |
Called (once) when the data has been set up properly. More... | |
bool | parallelDataStarted (AbstractAnalysisData *data, const AnalysisDataParallelOptions &options) override |
Called (once) for parallel data when the data has been set up. More... | |
void | frameStarted (const AnalysisDataFrameHeader &frame) override |
Called at the start of each data frame. More... | |
void | pointsAdded (const AnalysisDataPointSetRef &points) override |
Called one or more times during each data frame. More... | |
void | frameFinished (const AnalysisDataFrameHeader &header) override |
Called when a data frame is finished. More... | |
void | frameFinishedSerial (int frameIndex) override |
Called in sequential order for each frame after they are finished. More... | |
void | dataFinished () override |
Called (once) when no more data is available. More... | |
Public Member Functions inherited from gmx::AbstractAnalysisData | |
bool | isMultipoint () const |
Whether the data can have multiple points in the same column in the same frame. More... | |
int | dataSetCount () const |
Returns the number of data sets in the data object. More... | |
int | columnCount (int dataSet) const |
Returns the number of columns in a data set. More... | |
int | columnCount () const |
Returns the number of columns in the data. More... | |
AnalysisDataFrameRef | tryGetDataFrame (int index) const |
Access stored data. More... | |
AnalysisDataFrameRef | getDataFrame (int index) const |
Access stored data. More... | |
bool | requestStorage (int nframes) |
Request storage of frames. More... | |
void | addModule (const AnalysisDataModulePointer &module) |
Adds a module to process the data. More... | |
void | addColumnModule (int col, int span, const AnalysisDataModulePointer &module) |
Adds a module that processes only a subset of the columns. More... | |
void | applyModule (IAnalysisDataModule *module) |
Applies a module to process data that is ready. More... | |
Additional Inherited Members | |
Public Types inherited from gmx::IAnalysisDataModule | |
enum | Flag { efAllowMultipoint = 1 << 0, efOnlyMultipoint = 1 << 1, efAllowMulticolumn = 1 << 2, efAllowMissing = 1 << 3, efAllowMultipleDataSets = 1 << 4 } |
Possible flags for flags(). More... | |
Protected Member Functions inherited from gmx::AbstractAnalysisData | |
AbstractAnalysisData () | |
Initializes a new analysis data object. More... | |
void | setDataSetCount (int dataSetCount) |
Sets the number of data sets. More... | |
void | setColumnCount (int dataSet, int columnCount) |
Sets the number of columns for a data set. More... | |
void | setMultipoint (bool bMultipoint) |
Sets whether the data has multiple points per column in a frame. More... | |
AnalysisDataModuleManager & | moduleManager () |
Returns the module manager to use for calling notification methods. | |
const AnalysisDataModuleManager & | moduleManager () const |
Returns the module manager to use for calling notification methods. | |
gmx::AnalysisDataProxy::AnalysisDataProxy | ( | int | firstColumn, |
int | columnSpan, | ||
AbstractAnalysisData * | data | ||
) |
Creates a proxy object that only presents certain columns.
[in] | firstColumn | First column to present. |
[in] | columnSpan | Number of columns to present. |
[in] | data | Data object that should be wrapped. |
Does not throw.
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overridevirtual |
Called (once) when no more data is available.
unspecified | Can throw any exception required by the implementing class to report errors. |
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Called (once) when the data has been set up properly.
[in] | data | Data object to which the module is added. |
APIError | if the provided data is not compatible. |
unspecified | Can throw any exception required by the implementing class to report errors. |
When the data is ready, either this method or parallelDataStarted() is called, depending on the nature of the input data. If this method is called, the input data will always present the frames in sequential order.
The data to which the module is attached is passed as an argument to provide access to properties of the data for initialization and/or validation. The module can also call AbstractAnalysisData::requestStorage() if needed.
This is the only place where the module gets access to the data; if properties of the data are required later, the module should store them internally. It is guaranteed that the data properties (column count, whether it's multipoint) do not change once this method has been called.
Notice that data
will be a proxy object if the module is added as a column module, not the data object for which AbstractAnalysisData::addColumnModule() was called.
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Returns properties supported by the module.
The return value of this method should not change after the module has been added to a data (this responsibility can, and in most cases must, be delegated to the user of the module).
The purpose of this method is to remove the need for common checks for data compatibility in the classes that implement the interface. Instead, AbstractAnalysisData performs these checks based on the flags provided.
Does not throw.
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Returns the total number of frames in the data.
This function returns the number of frames that the object has produced. If requestStorage() has been successfully called, tryGetDataframe() or getDataFrame() can be used to access some or all of these frames.
Does not throw.
Derived classes should implement this to return the number of frames. The frame count should not be incremented before tryGetDataFrameInternal() can return the new frame. The frame count must be incremented before AnalysisDataModuleManager::notifyFrameFinish() is called.
Implements gmx::AbstractAnalysisData.
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overridevirtual |
Called when a data frame is finished.
[in] | header | Header information for the frame that is ending. |
unspecified | Can throw any exception required by the implementing class to report errors. |
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Called in sequential order for each frame after they are finished.
[in] | frameIndex | Index of the next finished frame. |
unspecified | Can throw any exception required by the implementing class to report errors. |
This method is called after frameFinished(), but with an additional constraint that it is always called in serial and with an increasing frameIndex
. Parallel data modules need this to serialize their data for downstream serial modules; AnalysisDataModuleSerial provides an empty implementation, as there frameFinished() can be used for the same purpose.
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Called at the start of each data frame.
[in] | frame | Header information for the frame that is starting. |
unspecified | Can throw any exception required by the implementing class to report errors. |
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Called (once) for parallel data when the data has been set up.
[in] | data | Data object to which the module is added. |
[in] | options | Parallelization properties of the input data. |
APIError | if the provided data is not compatible. |
unspecified | Can throw any exception required by the implementing class to report errors. |
This method is called instead of dataStarted() if the input data has the capability to present data in non-sequential order. If the method returns true, then the module accepts this and frame notification methods may be called in that non-sequential order. If the method returns false, then the frame notification methods are called in sequential order, as if dataStarted() had been called.
See dataStarted() for general information on initializing the data. That applies to this method as well, with the exception that calling AbstractAnalysisData::requestStorage() is currently not very well supported (or rather, accessing the requested storage doesn't work).
Implements gmx::IAnalysisDataModule.
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overridevirtual |
Called one or more times during each data frame.
[in] | points | Set of points added (also provides access to frame-level data). |
APIError | if the provided data is not compatible. |
unspecified | Can throw any exception required by the implementing class to report errors. |
Can be called once or multiple times for a frame. For all data objects currently implemented in the library (and all objects that will use AnalysisDataStorage for internal implementation), it is called exactly once for each frame if the data is not multipoint, but currently this restriction is not enforced.
Implements gmx::IAnalysisDataModule.