/*******************************************************************************
* Copyright (c) 2001, 2008 Oracle Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Oracle Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.pagedesigner.itemcreation.internal;
import org.eclipse.jst.jsf.common.dom.TagIdentifier;
import org.eclipse.jst.pagedesigner.PDPlugin;
import org.eclipse.jst.pagedesigner.elementedit.ElementEditFactoryRegistry;
import org.eclipse.jst.pagedesigner.elementedit.IElementEdit;
import org.eclipse.jst.pagedesigner.itemcreation.AbstractTagCreator;
import org.eclipse.jst.pagedesigner.itemcreation.ITagCreator;
/**
* Creates instances of
* {@link org.eclipse.jst.pagedesigner.itemcreation.ITagCreator}s
* (Eventually) Will use TagCreavtorFactories registered using
* org.eclipse.jst.jsf.pagedesigner.tagcreationfactories ext-pt. Currently only
* using DefaultTagCreator.
*/
public class TagCreationFactory
{
private static TagCreationFactory INSTANCE = null;
/**
* @return singleton instance
*/
public synchronized static TagCreationFactory getInstance()
{
if (INSTANCE == null)
{
INSTANCE = new TagCreationFactory();
}
return INSTANCE;
}
/**
* Using the TagToolPaletteEntry, locate the factory to use for tag creation
*
* @param tagId
*
* @return ITagCreator
*/
public ITagCreator createTagCreator(final TagIdentifier tagId)
{
IElementEdit elementEdit = ElementEditFactoryRegistry.getInstance()
.createElementEdit(tagId);
if (elementEdit != null)
{
// for (ITagCreatorFactory factory : factories)
// {
ITagCreator tagCreator = null;
try
{
tagCreator = elementEdit.getTagCreator(tagId);
}
catch (Exception e)
{
PDPlugin.getLogger(getClass()).error(
"Error.ProblemLoadingTagCreatorFactory", //$NON-NLS-1$
elementEdit.getClass().toString(), e);
}
if (tagCreator != null)
{
if (tagCreator instanceof AbstractTagCreator)
{
return tagCreator;
}
// if non-null, skipped, log the issue
PDPlugin.getLogger(getClass()).error(
"Error.ProblemLoadingTagCreatorFactory", //$NON-NLS-1$
"Tag creator must extend AbstractTagCreator", //$NON-NLS-1$
new Throwable());
}
}
// all else fails, use the internal default
return new DefaultTagCreator();
}
}