org.das2.datasource

Class Das2ServerDataSourceFactory

java.lang.Object

org.das2.datasource.Das2ServerDataSourceFactory

All Implemented Interfaces:

DataSourceFactory

public class Das2ServerDataSourceFactory
extends java.lang.Object
implements DataSourceFactory

DataSourceFactory for communicating with Das2servers.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	PROB_DS
static java.lang.String	PROB_TIMERANGE

Constructor Summary

Constructors

Constructor and Description
Das2ServerDataSourceFactory()

Method Summary

Modifier and Type	Method and Description
<T> T	getCapability(java.lang.Class<T> clazz) return additional tools for creating valid URIs, such as TimeSeriesBrowse.
java.util.List<CompletionContext>	getCompletions(CompletionContext cc, ProgressMonitor mon) return a list of context-sensitive completions.
DataSource	getDataSource(java.net.URI uri) return a dataSource for the url
java.lang.String	getDescription() return a short description of the factory, or empty string.
boolean	isFileResource() true if the data source is based on files.
boolean	reject(java.lang.String surl, java.util.List<java.lang.String> problems, ProgressMonitor mon) Indicate if a URI is acceptable.
boolean	supportsDiscovery() mark that this source has an editor that allows discovery of data, and the GUI can be entered with "vap+ext:" This must be consistent with the reject method of the editor.

Methods inherited from class java.lang.Object

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

Field Detail

PROB_DS

public static final java.lang.String PROB_DS

See Also:

Constant Field Values

PROB_TIMERANGE

public static final java.lang.String PROB_TIMERANGE

See Also:

Constant Field Values

Constructor Detail

Das2ServerDataSourceFactory

public Das2ServerDataSourceFactory()

Method Detail

getDataSource

public DataSource getDataSource(java.net.URI uri)
                         throws java.lang.Exception

Description copied from interface: DataSourceFactory

return a dataSource for the url

Specified by:

getDataSource in interface DataSourceFactory

Parameters:

uri - the URI

Returns:

the DataSource

Throws:

java.lang.Exception - any exception may occur.

getCompletions

public java.util.List<CompletionContext> getCompletions(CompletionContext cc,
                                                        ProgressMonitor mon)
                                                 throws java.lang.Exception

Description copied from interface: DataSourceFactory

return a list of context-sensitive completions. If an exception is thrown, then an a error dialog is displayed for RuntimeExceptions. Compile-time exceptions may be displayed more gently, relying on getMessage to aid the human operator.

Specified by:

getCompletions in interface DataSourceFactory

Parameters:

cc - the context for the completion.

mon - a progress monitor, for example to monitor a file download.

Returns:

a set of completions

Throws:

java.lang.Exception

reject

public boolean reject(java.lang.String surl,
                      java.util.List<java.lang.String> problems,
                      ProgressMonitor mon)

Indicate if a URI is acceptable.

 
 vap+das2server:http://www-pw.physics.uiowa.edu/das/das2Server?galileo/pws/EDPosition.dsdf&timerange=2001-10-17
 
 

Specified by:

reject in interface DataSourceFactory

Parameters:

surl -

problems -

mon -

Returns:

true if it is not acceptable.

supportsDiscovery

public boolean supportsDiscovery()

Description copied from interface: DataSourceFactory

mark that this source has an editor that allows discovery of data, and the GUI can be entered with "vap+ext:" This must be consistent with the reject method of the editor.

Specified by:

supportsDiscovery in interface DataSourceFactory

Returns:

true if the data source factory supports discovery.

isFileResource

public boolean isFileResource()

Description copied from interface: DataSourceFactory

true if the data source is based on files. For example, a CDF file is true, since the URIs contain cdf file names, and while vap+cdaweb uses files to move data, it is not file based. This is initially used to limit the entries in file choosers.

Specified by:

isFileResource in interface DataSourceFactory

Returns:

true if the data source is based on files.

getCapability

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

Description copied from interface: DataSourceFactory

return additional tools for creating valid URIs, such as TimeSeriesBrowse. This may soon include a file selector, and an automatic GUI created from the completions model.

Specified by:

getCapability in interface DataSourceFactory

Parameters:

clazz - the class, such as org.autoplot.datasource.capability.TimeSeriesBrowse

Returns:

the capability, such as an instance of org.autoplot.datasource.capability.TimeSeriesBrowse

getDescription

public java.lang.String getDescription()

Description copied from interface: DataSourceFactory

return a short description of the factory, or empty string. For example, "NASA Common Data Format (CDF) Files" or "NASA CDAWeb". This will be used to identify files or discovery sources.

Specified by:

getDescription in interface DataSourceFactory

Returns:

a short description of the factory.