ucar.unidata.data.gis

Class JsonDataSource

java.lang.Object

ucar.unidata.collab.SharableImpl

ucar.unidata.data.DataSourceImpl

ucar.unidata.data.FilesDataSource

ucar.unidata.data.gis.JsonDataSource

All Implemented Interfaces:

Sharable, DataSource, DataSourceFactory, XmlPersistable

public class JsonDataSource
extends FilesDataSource

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ATTR_NAME xml attribute
static java.lang.String	ATTR_PARENT xml attribute
protected java.util.List	cachedData A local cache
protected java.util.List	cachedUrls The urls
protected java.util.List	colorMap The colorMap
static java.lang.String	EXT_KML For ximg files
static PatternFileFilter	FILTER_KML For ximg files
protected java.util.HashMap	jsonInfo The jsonInfo
static java.lang.String	SUFFIX_KML For ximg files
static java.lang.String	TAG_DOCUMENT kml tag id
static java.lang.String	TAG_FOLDER kml tag id
static java.lang.String	TAG_GROUNDOVERLAY kml tag id
static java.lang.String	TAG_HREF xml tag
static java.lang.String	TAG_KML xml tag
static java.lang.String	TAG_LINESTRING xml tag
static java.lang.String	TAG_LINK xml tag
static java.lang.String	TAG_MULTIGEOMETRY kml tag id
static java.lang.String	TAG_NAME kml tag id
static java.lang.String	TAG_NETWORKLINK kml tag id
static java.lang.String	TAG_PHOTOOVERLAY kml tag
static java.lang.String	TAG_PLACEMARK kml tag id
static java.lang.String	TAG_SCHEMA xml tag
static java.lang.String	TAG_STYLEURL kml tag id
static java.lang.String	TAG_URL xml tag
protected java.util.List	timeList The timeList
protected java.util.List	times
boolean	useDriverTime _more_

Fields inherited from class ucar.unidata.data.FilesDataSource

adapters, oldSourceFromBundles, sources

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_TIMESTRIDE, PROP_TITLE

Constructor Summary

Constructors

Constructor and Description
JsonDataSource() Dummy constructor so this object can get unpersisted.
JsonDataSource(DataSourceDescriptor descriptor, java.util.List newSources, java.util.Hashtable properties) Create a KmlDataSource from the specification given.
JsonDataSource(DataSourceDescriptor descriptor, java.lang.String probSevereUrl, java.util.Hashtable properties) Create a KmlDataSource from the specification given.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	createKml(GeoLocationInfo bounds, java.lang.String imageFileName) Create some kml from the given bounds and image file
static void	createLatLonBox(GeoLocationInfo bounds, java.lang.StringBuffer sb) Utility to create a latlonbox kml
protected void	doMakeDataChoices() Create the data choices associated with this source.
protected java.util.List	doMakeDateTimes() Create a list of times for this data source.
void	expandIfNeeded(CompositeDataChoice parent) Expand the data choice if its a networklink
java.util.List	getAllDateTimes() Try to merge children up into parents of only one child
java.util.List	getAllDateTimes(DataChoice dataChoice) Get all the times for the given DataChoice
java.util.List<visad.DateTime>	getAllTimesForTimeDriver(DataChoice dataChoice, DataSelection selection, java.util.List<visad.DateTime> timeDriverTimes) Get the list of times to compare to the time driver times
protected visad.Data	getDataInner(DataChoice dataChoice, DataCategory category, DataSelection dataSelection, java.util.Hashtable requestProperties) Actually get the data identified by the given DataChoce.
protected java.io.InputStream	getInputStream(java.lang.String path) Create the input stream.
int	getTimeIndexWithBounds(visad.DateTime dateTime, java.util.List<visad.DateTime> allTimes, ucar.nc2.ft2.coverage.CoverageCoordAxis1D cca)
void	init(java.lang.String probSevereUrl) init KmlDataSource from the specification given.
void	initAfterUnpersistence() Initialize after we have been unpersisted
protected void	initPolygonColorMap() load probsevere color map
java.lang.String	jsonObjToString(org.json.simple.JSONObject jsonObj) build the json object string
static void	main(java.lang.String[] args) test main
protected void	parseJSON(java.lang.String jsonUrl) Get the kml root element
protected void	parseJSONHead(java.lang.String jsonUrl) Get the time list information
java.util.HashMap	parseJSONModel(org.json.simple.JSONArray coords, org.json.simple.JSONObject probJSON) parsing the json object coordinate and properties
java.util.List	processXml(org.w3c.dom.Element root) Get color map from xml file
protected byte[]	readBytes(java.lang.String path) Utility to read the bytes from the file or url
protected org.w3c.dom.Document	readColorMapXml(java.lang.String href) Get color map from xml file
protected java.awt.Image	readImage(java.lang.String url, java.lang.String baseUrl) Read the image
void	reloadData() reload
protected boolean	shouldCache(visad.Data data) See if this DataSource should cache or not
static void	writeToFile(java.lang.String kmlFilename, GeoLocationInfo bounds, java.lang.String imageFileName) write image as a kml to file

Methods inherited from class ucar.unidata.data.FilesDataSource

doRemove, equals, getDataFileExtension, getDataPaths, getFilePath, getFullDescription, getInputStreams, getLocationsForPolling, getPartialDescription, getSource, getSources, haveSources, initAfterCreation, initWithPollingInfo, isFileBased, newFilesFromPolling, processDataFilename, propertiesChanged, reloadData, saveDataToLocalDisk, setNewFiles, setSource, setSources, sourcesChanged, updateState

Methods inherited from class ucar.unidata.data.DataSourceImpl

addActions, addDataChangeListener, addDataChoice, addPropertiesTabs, addReloadTab, applyFieldMask, applyProperties, beginWritingDataToLocalDisk, canAddCurrentName, canCacheDataToDisk, canChangeData, canDoAllLevels, canDoFieldMask, canDoGeoSelection, canDoGeoSelectionMap, canDoGeoSelectionStride, canPoll, canSaveDataToLocalDisk, canShowParameter, checkForInitAfterUnPersistence, clearCachedData, clearFileCache, clearTimes, convertSourceFile, convertToFilesIfDirectory, createAutoDisplay, createCacheKey, createElement, decrOutstandingGetDataCalls, doDirectory, doMakeGeoSelectionPanel, doMakeGeoSelectionPanel, doMakeGeoSelectionPanel, doMakeGeoSubsetPropertiesComponent, endWritingDataToLocalDisk, findDataChoice, findDataChoices, flushCache, getAbsoluteDateTimes, getActions, getAlias, getAllLevels, getAllLevels, getCache, getCache, getCacheClearDelay, getCacheDataToDisk, getCompositeDataChoices, getData, getData, getDataCachePath, getDataChangeListeners, getDataChoices, getDataContext, getDataInner, getDataIsEditable, getDataPrefix, getDataSelection, getDataSelectionComponents, getDataSource, getDateTimes, getDateTimeSelection, getDefaultSave, getDescription, getDescriptor, getErrorMessage, getEverChangedName, getExtraGeoSelectionComponent, getExtraTimesComponent, getFileFilterForPolling, getid, getIdv, getInError, getLocalDirectory, getLocationForPolling, getMostRecentFiles, getName, getNameForDataSource, getNeedToShowErrorToUser, getNextId, getOutstandingGetDataCalls, 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, initDataChoice, initDataSelectionComponents, initFromXml, isPolling, loadFieldMask, loadFieldMask, loadLatestFile, logException, logException, makeDerivedDataChoices, makeSaveLocalActions, newFileFromPolling, notifyDataChange, putCache, putCache, reloadProperties, removeCache, removeDataChangeListener, removeDataChoice, removeProperty, replaceDataChoice, resetTmpState, saveDataToLocalDisk, saveDataToLocalDisk, selectTimesFromList, setAlias, setAskToUpdate, setCacheClearDelay, setCacheDataToDisk, setDataEditableStrings, setDataIsEditable, setDataIsRelative, setDataRelativeStrings, setDataSelection, setDateTimeSelection, setDefaultSave, setDescription, setDescriptor, setDirectory, setEverChangedName, setInError, setInError, setInError, setName, setObjectProperties, setObjectProperty, setPassword, setPollingInfo, setPollLocation, setProperties, setProperty, setProperty, setRelativePaths, setTemplateName, setTmpPaths, setUserName, shouldCache, showPasswordDialog, showPropertiesDialog, showPropertiesDialog, showPropertiesDialog, showWaitDialog, tick, toString, toStringTruncated, updateDetailsText, 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

FILTER_KML

public static final PatternFileFilter FILTER_KML

For ximg files

EXT_KML

public static final java.lang.String EXT_KML

For ximg files

See Also:

Constant Field Values

SUFFIX_KML

public static final java.lang.String SUFFIX_KML

For ximg files

See Also:

Constant Field Values

ATTR_PARENT

public static final java.lang.String ATTR_PARENT

xml attribute

See Also:

Constant Field Values

ATTR_NAME

public static final java.lang.String ATTR_NAME

xml attribute

See Also:

Constant Field Values

TAG_GROUNDOVERLAY

public static final java.lang.String TAG_GROUNDOVERLAY

kml tag id

See Also:

Constant Field Values

TAG_PHOTOOVERLAY

public static final java.lang.String TAG_PHOTOOVERLAY

kml tag

See Also:

Constant Field Values

TAG_URL

public static final java.lang.String TAG_URL

xml tag

See Also:

Constant Field Values

TAG_HREF

public static final java.lang.String TAG_HREF

xml tag

See Also:

Constant Field Values

TAG_LINK

public static final java.lang.String TAG_LINK

xml tag

See Also:

Constant Field Values

TAG_LINESTRING

public static final java.lang.String TAG_LINESTRING

xml tag

See Also:

Constant Field Values

TAG_SCHEMA

public static final java.lang.String TAG_SCHEMA

xml tag

See Also:

Constant Field Values

TAG_NETWORKLINK

public static final java.lang.String TAG_NETWORKLINK

kml tag id

See Also:

Constant Field Values

TAG_MULTIGEOMETRY

public static final java.lang.String TAG_MULTIGEOMETRY

kml tag id

See Also:

Constant Field Values

TAG_DOCUMENT

public static final java.lang.String TAG_DOCUMENT

kml tag id

See Also:

Constant Field Values

TAG_FOLDER

public static final java.lang.String TAG_FOLDER

kml tag id

See Also:

Constant Field Values

TAG_KML

public static final java.lang.String TAG_KML

xml tag

See Also:

Constant Field Values

TAG_PLACEMARK

public static final java.lang.String TAG_PLACEMARK

kml tag id

See Also:

Constant Field Values

TAG_NAME

public static final java.lang.String TAG_NAME

kml tag id

See Also:

Constant Field Values

TAG_STYLEURL

public static final java.lang.String TAG_STYLEURL

kml tag id

See Also:

Constant Field Values

cachedData

protected java.util.List cachedData

A local cache

cachedUrls

protected java.util.List cachedUrls

The urls

jsonInfo

protected java.util.HashMap jsonInfo

The jsonInfo

colorMap

protected java.util.List colorMap

The colorMap

timeList

protected java.util.List timeList

The timeList

times

protected java.util.List times

useDriverTime

public boolean useDriverTime

_more_

Constructor Detail

JsonDataSource

public JsonDataSource()

Dummy constructor so this object can get unpersisted.

JsonDataSource

public JsonDataSource(DataSourceDescriptor descriptor,
                      java.util.List newSources,
                      java.util.Hashtable properties)
               throws visad.VisADException,
                      java.lang.Exception

Create a KmlDataSource from the specification given.

Parameters:

descriptor - descriptor for the data source

newSources - Where the json came from

properties - extra properties

Throws:

visad.VisADException - some problem occurred creating data

java.lang.Exception

JsonDataSource

public JsonDataSource(DataSourceDescriptor descriptor,
                      java.lang.String probSevereUrl,
                      java.util.Hashtable properties)
               throws visad.VisADException,
                      java.lang.Exception

Create a KmlDataSource from the specification given.

Parameters:

descriptor - descriptor for the data source

probSevereUrl - Where the kml came from

properties - extra properties

Throws:

visad.VisADException - some problem occurred creating data

java.lang.Exception

Method Detail

init

public void init(java.lang.String probSevereUrl)
          throws visad.VisADException,
                 java.lang.Exception

init KmlDataSource from the specification given.

Parameters:

probSevereUrl - Where the json came from

Throws:

visad.VisADException - some problem occurred creating data

java.lang.Exception

getAllTimesForTimeDriver

public java.util.List<visad.DateTime> getAllTimesForTimeDriver(DataChoice dataChoice,
                                                               DataSelection selection,
                                                               java.util.List<visad.DateTime> timeDriverTimes)

Get the list of times to compare to the time driver times

Overrides:

getAllTimesForTimeDriver in class DataSourceImpl

Parameters:

dataChoice - the data choice

selection - the selection (for things like level)

timeDriverTimes - the time driver times (use range for server query)

Returns:

the list of times for comparison

writeToFile

public static void writeToFile(java.lang.String kmlFilename,
                               GeoLocationInfo bounds,
                               java.lang.String imageFileName)
                        throws java.io.FileNotFoundException,
                               java.io.IOException

write image as a kml to file

Parameters:

kmlFilename - kml filename

bounds - _image bounds

imageFileName - image filename

Throws:

java.io.FileNotFoundException - On badness

java.io.IOException - On badness

createKml

public static java.lang.String createKml(GeoLocationInfo bounds,
                                         java.lang.String imageFileName)
                                  throws java.io.FileNotFoundException,
                                         java.io.IOException

Create some kml from the given bounds and image file

Parameters:

bounds - bounds

imageFileName - image

Returns:

kml

Throws:

java.io.FileNotFoundException - On badness

java.io.IOException - On badness

createLatLonBox

public static void createLatLonBox(GeoLocationInfo bounds,
                                   java.lang.StringBuffer sb)

Utility to create a latlonbox kml

Parameters:

bounds - bounds

sb - buffer to add to

main

public static void main(java.lang.String[] args)

test main

Parameters:

args - cmd line args

initPolygonColorMap

protected void initPolygonColorMap()

load probsevere color map

processXml

public java.util.List processXml(org.w3c.dom.Element root)

Get color map from xml file

Parameters:

-

readColorMapXml

protected org.w3c.dom.Document readColorMapXml(java.lang.String href)
                                        throws java.lang.Exception

Get color map from xml file

Parameters:

-

Throws:

java.lang.Exception

reloadData

public void reloadData()

reload

Specified by:

reloadData in interface DataSource

Overrides:

reloadData in class FilesDataSource

initAfterUnpersistence

public void initAfterUnpersistence()

Initialize after we have been unpersisted

Specified by:

initAfterUnpersistence in interface DataSource

Overrides:

initAfterUnpersistence in class FilesDataSource

readImage

protected java.awt.Image readImage(java.lang.String url,
                                   java.lang.String baseUrl)

Read the image

Parameters:

url - image url

baseUrl - Where the kml came from_

Returns:

The image

readBytes

protected byte[] readBytes(java.lang.String path)
                    throws java.lang.Exception

Utility to read the bytes from the file or url

Parameters:

path - file or url

Returns:

bytes

Throws:

java.lang.Exception - On badness

getInputStream

protected java.io.InputStream getInputStream(java.lang.String path)
                                      throws java.lang.Exception

Create the input stream. Handle the case when it is a zip file

Parameters:

path - file or url

Returns:

input stream to kml file

Throws:

java.lang.Exception - On badness

parseJSON

protected void parseJSON(java.lang.String jsonUrl)
                  throws java.lang.Exception

Get the kml root element

Parameters:

jsonUrl - json url

Throws:

java.lang.Exception - On badness

parseJSONHead

protected void parseJSONHead(java.lang.String jsonUrl)
                      throws java.lang.Exception

Get the time list information

Parameters:

jsonUrl - json url

Throws:

java.lang.Exception - On badness

parseJSONModel

public java.util.HashMap parseJSONModel(org.json.simple.JSONArray coords,
                                        org.json.simple.JSONObject probJSON)

parsing the json object coordinate and properties

Parameters:

-

jsonObjToString

public java.lang.String jsonObjToString(org.json.simple.JSONObject jsonObj)

build the json object string

Parameters:

-

getAllDateTimes

public java.util.List getAllDateTimes(DataChoice dataChoice)

Get all the times for the given DataChoice

Specified by:

getAllDateTimes in interface DataSource

Overrides:

getAllDateTimes in class DataSourceImpl

Parameters:

-

Returns:

List of all times for that choice

getAllDateTimes

public java.util.List getAllDateTimes()

Try to merge children up into parents of only one child

Specified by:

getAllDateTimes in interface DataSource

Overrides:

getAllDateTimes in class DataSourceImpl

Parameters:

-

Returns:

array of DateTimes (may be null)

doMakeDataChoices

protected void doMakeDataChoices()

Create the data choices associated with this source.

Overrides:

doMakeDataChoices in class DataSourceImpl

expandIfNeeded

public void expandIfNeeded(CompositeDataChoice parent)

Expand the data choice if its a networklink

Specified by:

expandIfNeeded in interface DataSource

Overrides:

expandIfNeeded in class DataSourceImpl

Parameters:

parent - data choice

getDataInner

protected visad.Data getDataInner(DataChoice dataChoice,
                                  DataCategory category,
                                  DataSelection dataSelection,
                                  java.util.Hashtable requestProperties)
                           throws visad.VisADException,
                                  java.rmi.RemoteException

Actually get the data identified by the given DataChoce. The default is to call the getDataInner that does not take the requestProperties. This allows other, non unidata.data DataSource-s (that follow the old API) to work.

Overrides:

getDataInner in class DataSourceImpl

Parameters:

dataChoice - The data choice that identifies the requested data.

category - The data category of the request.

dataSelection - Identifies any subsetting of the data.

requestProperties - Hashtable that holds any detailed request properties.

Returns:

The visad.Data object

Throws:

java.rmi.RemoteException - Java RMI problem

visad.VisADException - VisAD problem

getTimeIndexWithBounds

public int getTimeIndexWithBounds(visad.DateTime dateTime,
                                  java.util.List<visad.DateTime> allTimes,
                                  ucar.nc2.ft2.coverage.CoverageCoordAxis1D cca)

shouldCache

protected boolean shouldCache(visad.Data data)

See if this DataSource should cache or not

Overrides:

shouldCache in class DataSourceImpl

Parameters:

data - Data to cache

Returns:

false

doMakeDateTimes

protected java.util.List doMakeDateTimes()

Create a list of times for this data source. Since shapefiles don't have any times, return an empty List.

Overrides:

doMakeDateTimes in class DataSourceImpl

Returns:

an empty List