WebObjects/Web Applications/Development/Custom Templates
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Petite Abeille
[edit | edit source][The following solution is more involved than what is strictly needed. It may avoid the debug message, he is using some quasi-private stuff.
It can be quite easy
[edit | edit source]protected WOElement myTemplate = null; public WOElement template() { if ( myTemplate == null ) { myTemplate = WOComponent.templateWithHTMLString( html, wod, null ); } return myTemplate; }
A More Involved Solution:
Here is a little example on how to overwrite WOComponent.template() so you can load the html template and wod from wherever you want )eg a jar file):
- First you will need to overwrite WOComponent.template()
public WOElement template() { return Component.templateForComponent( this ); }
- Now, templateForComponent could look like this:
public static WOElement templateForComponent(WOComponent aComponent) { { String aName = aComponent.name(); WOElement anElement = (WOElement) _elementCache.get( aName ); if ( anElement == null ) { String anHTMLString = Component.componentTemplateWithExtension( aComponent, ".html" ); String aDescriptionString = Component.componentTemplateWithExtension( aComponent, ".wod" ); anElement = WOComponent.templateWithHTMLString ( anHTMLString, aDescriptionString, null ); if ( aComponent.isCachingEnabled() == true ) { _elementCache.put( aName, anElement ); } } return anElement; } throw new IllegalArgumentException ( "Component.templateForComponent: null component." );
}
- The componentTemplateWithExtension method could look like the following:
private static String componentTemplateWithExtension(WOComponent aComponent, String anExtension) { if ( anExtension != null ) { String aResource = aComponent.name() + anExtension; InputStream anInputStream = Component.componentStreamForResource( aComponent, aResource ); if ( anInputStream != null ) { StringBuffer aBuffer = new StringBuffer(); try { BufferedInputStream aBufferedStream = new BufferedInputStream( anInputStream ); InputStreamReader aStreamReader = new InputStreamReader( aBufferedStream ); int aChar = -1; while ( ( aChar = aStreamReader.read() ) != -1 ) { aBuffer.append( (char) aChar ); } anInputStream.close(); } catch(Exception anException) { Log.warning( anException ); } return aBuffer.toString(); } throw new RuntimeException ( "Component.componentTemplateWithExtension: resource not found: '" + aResource + "'." ); } throw new IllegalArgumentException ( "Component.componentTemplateWithExtension: null extension." ); } }
- And finally componentStreamForResource could be something along these
lines:
private static InputStream componentStreamForResource(WOComponent aComponent, String aResource) { if ( aResource != null ) { File aDirectory = new File( System.getProperty( "user.dir" ) ); File aFile = new File( aDirectory, aResource ); if ( aFile.exists() == true ) { try { return new FileInputStream( aFile ); } catch(Exception anException) { Log.warning( anException); } } return aComponent.getClass().getResourceAsStream( aResource ); } throw new IllegalArgumentException( "Component.componentStreamForResource: null resource." ); }