edu.wisc.ssec.mcidasv.data

Class HydraDataSource

java.lang.Object

ucar.unidata.collab.SharableImpl

ucar.unidata.data.DataSourceImpl

edu.wisc.ssec.mcidasv.data.HydraDataSource

All Implemented Interfaces:

Sharable, DataSource, DataSourceFactory, XmlPersistable

Direct Known Subclasses:

HDFHydraDataSource, MultiDimensionDataSource, MultiSpectralDataSource, NPPDataSource

public class HydraDataSource
extends DataSourceImpl

Field Summary

Fields

Modifier and Type	Field and Description
protected List	adapters List of sources files
protected String	oldSourceFromBundles for unpersistence
static String	request
protected List	sources List of sources files

Fields inherited from class ucar.unidata.data.DataSourceImpl

changeDataPathsCbx, dataCacheKey, dataChoices, geoSelectionPanel, haveBeenUnPersisted, okToContinue, PARAM_SHOW_HIDE, PARAM_SHOW_NO, PARAM_SHOW_YES

Fields inherited from interface ucar.unidata.data.DataSource

DATAPATH_DATE_FORMAT, DATAPATH_DATE_PATTERN, MOST_RECENT, ordinalNames, PROP_AUTOCREATEDISPLAY, PROP_BASEDIRECTORY, PROP_CACHEABLE, PROP_DATACHOICENAME, PROP_DISPLAYPROPERTIES, PROP_DOCUMENTLINKS, PROP_FILEPATTERN, PROP_GEOLOCATION, PROP_ICON, PROP_NAME, PROP_POLLINFO, PROP_RESOLVERURL, PROP_SERVICE_HTTP, PROP_SUBPROPERTIES, PROP_TIMELABELS, PROP_TITLE

Constructor Summary

Constructors

Constructor and Description
HydraDataSource() Default constructor
HydraDataSource(DataSourceDescriptor descriptor, List newSources, String description, Hashtable properties) Create a HydraDataSource

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canSaveDataToLocalDisk() Can this data source save its dat to local disk
void	clearCachedData() This is called when the CacheManager detects the need ot clear memory.
protected List	doMakeDateTimes() Create the list of times associated with this DataSource.
protected List	getAdapters() Create, if needed, and return the list of adapters.
protected Data	getDataInner(DataChoice dataChoice, DataCategory category, DataSelection subset, Hashtable requestProperties) Get the data for the given DataChoice and selection criteria.
protected boolean	isFileBased() Are we getting data from a file or from server
private void	makeAdapters(List files) Make the adapters for the given list of files

Methods inherited from class ucar.unidata.data.DataSourceImpl

addActions, addDataChangeListener, addDataChoice, addPropertiesTabs, addReloadTab, applyFieldMask, applyProperties, beginWritingDataToLocalDisk, canAddCurrentName, canCacheDataToDisk, canChangeData, canDoFieldMask, canDoGeoSelection, canDoGeoSelectionMap, canDoGeoSelectionStride, canPoll, canShowParameter, checkForInitAfterUnPersistence, clearFileCache, clearTimes, convertSourceFile, convertToFilesIfDirectory, createAutoDisplay, createCacheKey, createElement, decrOutstandingGetDataCalls, doDirectory, doMakeDataChoices, doMakeGeoSelectionPanel, doMakeGeoSelectionPanel, doMakeGeoSelectionPanel, doMakeGeoSubsetPropertiesComponent, doRemove, endWritingDataToLocalDisk, equals, expandIfNeeded, findDataChoice, findDataChoices, flushCache, getAbsoluteDateTimes, getActions, getAlias, getAllDateTimes, getAllDateTimes, getAllLevels, getAllLevels, getCache, getCache, getCacheClearDelay, getCacheDataToDisk, getCompositeDataChoices, getData, getData, getDataCachePath, getDataChangeListeners, getDataChoices, getDataContext, getDataInner, getDataIsEditable, getDataPaths, getDataPrefix, getDataSelection, getDataSelectionComponents, getDataSource, getDateTimes, getDateTimeSelection, getDescription, getDescriptor, getErrorMessage, getEverChangedName, getExtraGeoSelectionComponent, getExtraTimesComponent, getFileFilterForPolling, getFullDescription, getid, getIdv, getInError, getLocalDirectory, getLocationForPolling, getLocationsForPolling, getMostRecentFiles, getName, getNameForDataSource, getNeedToShowErrorToUser, getNextId, getOutstandingGetDataCalls, getPartialDescription, getPassword, getPathsThatCanBeRelative, getPollingInfo, getProperties, getPropertiesComponents, getPropertiesHeader, getProperty, getProperty, getProperty, getProperty, getProperty, getProperty, getProperty, getRelativePaths, getSampleDataProjection, getSaveDataFileLabel, getSelectedDateTimes, getSelectedDateTimes, getTimesFromDataSelection, getTmpPaths, getTypeName, getUserName, handlePropertiesAction, hasPollingInfo, holdsDateTimes, holdsIndices, identifiedBy, identifiedByName, incrOutstandingGetDataCalls, initAfter, initAfterCreation, initAfterUnpersistence, initDataChoice, initDataSelectionComponents, initFromXml, isPolling, loadFieldMask, loadFieldMask, loadLatestFile, logException, logException, makeDerivedDataChoices, makeSaveLocalActions, newFileFromPolling, newFilesFromPolling, notifyDataChange, propertiesChanged, putCache, putCache, reloadData, reloadData, reloadProperties, removeCache, removeDataChangeListener, removeDataChoice, removeProperty, replaceDataChoice, resetTmpState, saveDataToLocalDisk, saveDataToLocalDisk, saveDataToLocalDisk, setAlias, setAskToUpdate, setCacheClearDelay, setCacheDataToDisk, setDataEditableStrings, setDataIsEditable, setDataIsRelative, setDataRelativeStrings, setDataSelection, setDateTimeSelection, setDescription, setDescriptor, setDirectory, setEverChangedName, setInError, setInError, setInError, setName, setNewFiles, setObjectProperties, setObjectProperty, setPassword, setPollingInfo, setPollLocation, setProperties, setProperty, setProperty, setRelativePaths, setTemplateName, setTmpPaths, setUserName, shouldCache, shouldCache, showPasswordDialog, showPropertiesDialog, showPropertiesDialog, showPropertiesDialog, showWaitDialog, tick, toString, toStringTruncated, updateDetailsText, updateState, writeFieldMaskFile, writeFieldMaskFile

Methods inherited from class ucar.unidata.collab.SharableImpl

applySharableProperties, doShare, doShare, doShareExternal, doShareInternal, getReceiveShareTime, getSharablePropertiesComponent, getShareGroup, getSharing, getUniqueId, initSharable, receiveShareData, removeSharable, setReceiveShareTime, setShareGroup, setSharing, setUniqueId, showSharableDialog

Methods inherited from class java.lang.Object

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

Methods inherited from interface ucar.unidata.data.DataSource

getUniqueId

Field Detail

sources

protected final List sources

List of sources files

request

public static String request

adapters

protected List adapters

List of sources files

oldSourceFromBundles

protected String oldSourceFromBundles

for unpersistence

Constructor Detail

HydraDataSource

public HydraDataSource()

Default constructor

HydraDataSource

public HydraDataSource(DataSourceDescriptor descriptor,
               List newSources,
               String description,
               Hashtable properties)
                throws VisADException

Create a HydraDataSource

Parameters:

descriptor - The datasource descriptor

newSources - List of files or urls

description - The long name

properties - properties

Throws:

VisADException - couldn't create the data

Method Detail

canSaveDataToLocalDisk

public boolean canSaveDataToLocalDisk()

Can this data source save its dat to local disk

Specified by:

canSaveDataToLocalDisk in interface DataSource

Overrides:

canSaveDataToLocalDisk in class DataSourceImpl

Returns:

can save to local disk

isFileBased

protected boolean isFileBased()

Are we getting data from a file or from server

Returns:

is the data from files

clearCachedData

public void clearCachedData()

This is called when the CacheManager detects the need ot clear memory. It is intended to be overwritten by derived classes that are holding cached data that is not in the normal putCache facilities provided by this class since that data is actually managed by the CacheManager

Specified by:

clearCachedData in interface DataSource

Overrides:

clearCachedData in class DataSourceImpl

getAdapters

protected List getAdapters()

Create, if needed, and return the list of adapters. Will return null if there are no valid adapters.

Returns:

List of adapters or null

makeAdapters

private void makeAdapters(List files)
                   throws Exception

Make the adapters for the given list of files

Parameters:

files - Data files

Throws:

Exception - When bad things happen

doMakeDateTimes

protected List doMakeDateTimes()

Create the list of times associated with this DataSource.

Overrides:

doMakeDateTimes in class DataSourceImpl

Returns:

list of times.

getDataInner

protected Data getDataInner(DataChoice dataChoice,
                DataCategory category,
                DataSelection subset,
                Hashtable requestProperties)
                     throws VisADException,
                            RemoteException

Get the data for the given DataChoice and selection criteria.

Overrides:

getDataInner in class DataSourceImpl

Parameters:

dataChoice - DataChoice for selection

category - DataCategory for the DataChoice (not used)

subset - subsetting criteria

requestProperties - extra request properties

Returns:

the Data object for the request

Throws:

RemoteException - couldn't create a remote data object

VisADException - couldn't create the data