org.autoplot.fits

Class FitsDataSource

java.lang.Object

org.autoplot.datasource.AbstractDataSource

org.autoplot.fits.FitsDataSource

All Implemented Interfaces:

DataSource

public class FitsDataSource
extends AbstractDataSource

Support for reading FITS files using eso.org's JFITS library.

Field Summary

Fields inherited from class org.autoplot.datasource.AbstractDataSource

logger, params, resourceURI, uri

Method Summary

Modifier and Type	Method and Description
QDataSet	getDataSet(ProgressMonitor mon) retrieve the dataset.
java.util.Map<java.lang.String,java.lang.Object>	getMetadata(ProgressMonitor mon) abstract class version returns an empty tree.
MetadataModel	getMetadataModel() return a MetadataModel object that can make the metadata canonical.

Methods inherited from class org.autoplot.datasource.AbstractDataSource

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

Methods inherited from class java.lang.Object

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

Method Detail

getDataSet

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

Description copied from interface: DataSource

retrieve the dataset. This allowed to be sub-interactive or batch time scale, and will block until the dataset is produced. This may return null when no data is available, or NoDataInIntervalException can be thrown. If the user cancelled the operation, then java.io.InterrupedIOExcaption or better yet org.das2.CancelledOperationException should be called. These will simply display "cancelled" (or similar) on the status bar.

Specified by:

getDataSet in interface DataSource

Specified by:

getDataSet in class AbstractDataSource

Returns:

the DataSet for the URI, or null if no data is available.

Throws:

java.lang.Exception

getMetadata

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

Description copied from class: AbstractDataSource

abstract class version returns an empty tree. Override this method to provide metadata.

Specified by:

getMetadata in interface DataSource

Overrides:

getMetadata in class AbstractDataSource

Parameters:

mon - progress monitor

Returns:

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: