org.autoplot.cdaweb

Class CDAWebDataSource

java.lang.Object

org.autoplot.datasource.AbstractDataSource

org.autoplot.cdaweb.CDAWebDataSource

All Implemented Interfaces:

DataSource

public class CDAWebDataSource
extends AbstractDataSource

Special data source for reading time series from NASA Goddard's CDAWeb database. This uses an XML file to locate data files (soon a web service), and delegates to the CDF file reader to read them. This code handles the aggregation into a time series.

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.logging.Logger	logger
static java.lang.String	PARAM_AVAIL
static java.lang.String	PARAM_DS
static java.lang.String	PARAM_ID
static java.lang.String	PARAM_TIMERANGE
static java.lang.String	PARAM_WS

Fields inherited from class org.autoplot.datasource.AbstractDataSource

params, resourceURI, uri

Constructor Summary

Constructors

Constructor and Description
CDAWebDataSource(java.net.URI uri)

Method Summary

Modifier and Type	Method and Description
<T> T	getCapability(java.lang.Class<T> clazz) caution: see also CDAWebDataSourceFactory.getCapability!
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.
static void	main(java.lang.String[] args)

Methods inherited from class org.autoplot.datasource.AbstractDataSource

addCability, addCapability, asynchronousLoad, doWhereFilter, 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

Field Detail

logger

protected static final java.util.logging.Logger logger

PARAM_ID

public static final java.lang.String PARAM_ID

See Also:

Constant Field Values

PARAM_DS

public static final java.lang.String PARAM_DS

See Also:

Constant Field Values

PARAM_TIMERANGE

public static final java.lang.String PARAM_TIMERANGE

See Also:

Constant Field Values

PARAM_WS

public static final java.lang.String PARAM_WS

See Also:

Constant Field Values

PARAM_AVAIL

public static final java.lang.String PARAM_AVAIL

See Also:

Constant Field Values

Constructor Detail

CDAWebDataSource

public CDAWebDataSource(java.net.URI uri)

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:

getCapability

public <T> T getCapability(java.lang.Class<T> clazz)

caution: see also CDAWebDataSourceFactory.getCapability!

Specified by:

getCapability in interface DataSource

Overrides:

getCapability in class AbstractDataSource

Type Parameters:

T -

Parameters:

clazz -

Returns:

main

public static void main(java.lang.String[] args)
                 throws java.net.URISyntaxException,
                        java.lang.Exception

Throws:

java.net.URISyntaxException

java.lang.Exception