ucar.unidata.idv.chooser

Class ThreddsHandler

java.lang.Object

ucar.unidata.idv.chooser.XmlHandler

ucar.unidata.idv.chooser.ThreddsHandler

public class ThreddsHandler
extends XmlHandler

This handles the Thredds catalog xml for the XmlChooser.

Version:

$Revision: 1.68 $Date: 2007/07/09 22:59:58 $

Author:

IDV development team

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	NULL_STRING More clear than then doing (String)null

Fields inherited from class ucar.unidata.idv.chooser.XmlHandler

chooser, path, root, tree

Constructor Summary

Constructors

Constructor and Description
ThreddsHandler(XmlChooser chooser, org.w3c.dom.Element root, java.lang.String path) Create the handler

Method Summary

Modifier and Type	Method and Description
void	doLoad() The user has pressed the 'Load' button.
protected javax.swing.JComponent	doMakeContents() Create the UI
void	fetchImages(java.lang.String[] tuple) Fetch the image url and update the tree.
protected java.lang.String	getDocumentationLabel(org.w3c.dom.Element node) For the given documentation node return the label that we use (eg:, Summary, rights, etc)
protected java.lang.String	getDocumentationToolTip(org.w3c.dom.Element node) Get the tooltip text to use for the given documentation node.
java.lang.String	getPropertyAttributeFromChild(org.w3c.dom.Element parent, java.lang.String nameValueLookingFor, java.lang.String dflt) Look for the named attribute contained by a child of the given element with the given tag name.
static void	main(java.lang.String[] args) Test the html generation
void	processNode(org.w3c.dom.Element node) Process the given node
protected void	updateStatus() Update the status

Methods inherited from class ucar.unidata.idv.chooser.XmlHandler

getContents, getPath

Methods inherited from class java.lang.Object

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

Field Detail

NULL_STRING

public static final java.lang.String NULL_STRING

More clear than then doing (String)null

Constructor Detail

ThreddsHandler

public ThreddsHandler(XmlChooser chooser,
                      org.w3c.dom.Element root,
                      java.lang.String path)

Create the handler

Parameters:

chooser - The chooser we are in

root - The root of the xml tree

path - The url path of the xml document

Method Detail

updateStatus

protected void updateStatus()

Update the status

Overrides:

updateStatus in class XmlHandler

getDocumentationLabel

protected java.lang.String getDocumentationLabel(org.w3c.dom.Element node)

For the given documentation node return the label that we use (eg:, Summary, rights, etc)

Parameters:

node - The documentation node

Returns:

The label to use

getDocumentationToolTip

protected java.lang.String getDocumentationToolTip(org.w3c.dom.Element node)

Get the tooltip text to use for the given documentation node.

Parameters:

node - The xml doc node

Returns:

The tooltip - show the documentation if it is a summary or rights. Else return null.

doMakeContents

protected javax.swing.JComponent doMakeContents()

Create the UI

Specified by:

doMakeContents in class XmlHandler

Returns:

The UI component

fetchImages

public void fetchImages(java.lang.String[] tuple)

Fetch the image url and update the tree. The tuple contains a pair [id, imageUrl] where id is either icon or thumbnail

Parameters:

tuple - id and url

doLoad

public void doLoad()

The user has pressed the 'Load' button. Check if a node is selected

Specified by:

doLoad in class XmlHandler

processNode

public void processNode(org.w3c.dom.Element node)

Process the given node

Parameters:

node - node

getPropertyAttributeFromChild

public java.lang.String getPropertyAttributeFromChild(org.w3c.dom.Element parent,
                                                      java.lang.String nameValueLookingFor,
                                                      java.lang.String dflt)

Look for the named attribute contained by a child of the given element with the given tag name.

Parameters:

parent - The xml node to look within.

nameValueLookingFor - The value we are looking for

dflt - The default value returned.

Returns:

The value of the given attribute or dflt if not found.

main

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

Test the html generation

Parameters:

args - Command line args

Throws:

java.lang.Exception - problem occurred