org.autoplot.aggregator

Class AggregatingDataSource

java.lang.Object

org.autoplot.datasource.AbstractDataSource

org.autoplot.aggregator.AggregatingDataSource

All Implemented Interfaces:

DataSource

public final class AggregatingDataSource
extends AbstractDataSource

Data Source that aggregates (or combines) the data from granule files containing data for intervals. For example, https://cdaweb.gsfc.nasa.gov/istp_public/data/polar/hydra/hyd_h0/$Y/po_h0_hyd_$Y$m$d_v$v.cdf?ELECTRON_DIFFERENTIAL_ENERGY_FLUX&timerange=20000109 is the aggregation of daily files from the CDAWeb. This provides an easy method for storing a long time series without having a complex data server. The result of this is not guaranteed to be monotonically increasing in time. See https://sourceforge.net/p/autoplot/bugs/1326/

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AggregatingDataSource.AggTimeSeriesBrowse TimeSeriesBrowse allows users to look up new intervals automatically.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	MSG_NO_FILES_FOUND message used when no files are found in the interval.
static java.lang.String	PARAM_AVAIL

Fields inherited from class org.autoplot.datasource.AbstractDataSource

params, resourceURI, uri

Constructor Summary

Constructors

Constructor and Description
AggregatingDataSource(java.net.URI uri, DataSourceFactory delegateFactory) Creates a new instance of AggregatingDataSource

Method Summary

Modifier and Type	Method and Description
void	addPropertyChangeListener(java.beans.PropertyChangeListener l) Adds a PropertyChangeListener to the listener list.
QDataSet	getDataSet(ProgressMonitor mon) read the data.
QDataSet	getDataSet(ProgressMonitor mon, DatumRange lviewRange, Datum lresolution)
FileStorageModel	getFsm()
java.util.Map<java.lang.String,java.lang.Object>	getMetadata(ProgressMonitor mon) returns the metadata provided by the first delegate dataset.
MetadataModel	getMetadataModel() return a MetadataModel object that can make the metadata canonical.
Datum	getResolution()
protected java.lang.String	getSParams()
java.lang.String	getURI() return the fully-qualified URI of this data source, including the "vap+:" scheme.
DatumRange	getViewRange() Getter for property viewRange.
void	removePropertyChangeListener(java.beans.PropertyChangeListener l) Removes a PropertyChangeListener from the listener list.
void	setFsm(FileStorageModel fsm)
void	setParams(java.lang.String params) Setter for property args.
void	setResolution(Datum resolution)
void	setViewRange(DatumRange viewRange) Setter for property viewRange.

Methods inherited from class org.autoplot.datasource.AbstractDataSource

addCability, addCapability, asynchronousLoad, doWhereFilter, getCapability, getExt, getExt, getFile, getFile, getFile, getHtmlFile, getInputStream, getParam, getParams, getProperties, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

MSG_NO_FILES_FOUND

public static final java.lang.String MSG_NO_FILES_FOUND

message used when no files are found in the interval.

See Also:

Constant Field Values

PARAM_AVAIL

public static final java.lang.String PARAM_AVAIL

See Also:

Constant Field Values

Constructor Detail

AggregatingDataSource

public AggregatingDataSource(java.net.URI uri,
                             DataSourceFactory delegateFactory)
                      throws java.net.MalformedURLException,
                             FileSystem.FileSystemOfflineException,
                             java.io.IOException,
                             java.text.ParseException

Creates a new instance of AggregatingDataSource

Parameters:

uri - the URI

delegateFactory - the factory used to read each granule.

Throws:

java.net.MalformedURLException

FileSystem.FileSystemOfflineException

java.text.ParseException

java.io.IOException

Method Detail

getDataSet

public QDataSet getDataSet(ProgressMonitor mon)
                    throws java.lang.Exception

read the data. This supports reference caching.

Specified by:

getDataSet in interface DataSource

Specified by:

getDataSet in class AbstractDataSource

Parameters:

mon -

Returns:

Throws:

java.lang.Exception

getDataSet

public QDataSet getDataSet(ProgressMonitor mon,
                           DatumRange lviewRange,
                           Datum lresolution)
                    throws java.lang.Exception

Throws:

java.lang.Exception

getMetadataModel

public MetadataModel getMetadataModel()

Description copied from class: AbstractDataSource

return a MetadataModel object that can make the metadata canonical. For example, ISTPMetadataModel interprets the metadata returned from CDF files, but this same model can be used with HDF files. This returns a null model that does no interpretation, and some data sources will override this.

Specified by:

getMetadataModel in interface DataSource

Overrides:

getMetadataModel in class AbstractDataSource

Returns:

getMetadata

public java.util.Map<java.lang.String,java.lang.Object> getMetadata(ProgressMonitor mon)
                                                             throws java.lang.Exception

returns the metadata provided by the first delegate dataset.

Specified by:

getMetadata in interface DataSource

Overrides:

getMetadata in class AbstractDataSource

Parameters:

mon - progress monitor

Returns:

Throws:

java.lang.Exception

getResolution

public Datum getResolution()

setResolution

public void setResolution(Datum resolution)

addPropertyChangeListener

public void addPropertyChangeListener(java.beans.PropertyChangeListener l)

Adds a PropertyChangeListener to the listener list.

Parameters:

l - The listener to add.

removePropertyChangeListener

public void removePropertyChangeListener(java.beans.PropertyChangeListener l)

Removes a PropertyChangeListener from the listener list.

Parameters:

l - The listener to remove.

getViewRange

public DatumRange getViewRange()

Getter for property viewRange.

Returns:

Value of property viewRange.

setViewRange

public void setViewRange(DatumRange viewRange)

Setter for property viewRange.

Parameters:

viewRange - New value of property viewRange.

getFsm

public FileStorageModel getFsm()

setFsm

public void setFsm(FileStorageModel fsm)

setParams

public void setParams(java.lang.String params)

Setter for property args.

Parameters:

args - New value of property args.

getSParams

protected java.lang.String getSParams()

getURI

public java.lang.String getURI()

Description copied from interface: DataSource

return the fully-qualified URI of this data source, including the "vap+:" scheme.

Specified by:

getURI in interface DataSource

Overrides:

getURI in class AbstractDataSource

Returns: