/*******************************************************************************
* Copyright (c) 2007 Oracle Corporation.
* 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:
* Cameron Bateman/Oracle - initial API and implementation
*
********************************************************************************/
package org.eclipse.jst.jsf.designtime.symbols;
import org.eclipse.core.resources.IFile;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jst.jsf.common.internal.types.ValueType;
import org.eclipse.jst.jsf.context.structureddocument.IStructuredDocumentContext;
import org.eclipse.jst.jsf.context.structureddocument.IStructuredDocumentContextFactory;
import org.eclipse.jst.jsf.context.symbol.ERuntimeSource;
import org.eclipse.jst.jsf.context.symbol.ISymbol;
import org.w3c.dom.Element;
/**
* The default factory for creating DataModel symbols based on an value
* expression in a dataTable.
*
* Clients may sub-class.
*
* @author cbateman
*
*/
public class DefaultDataTableSymbolFactory
{
private final AbstractDataModelVariableFactory _dataModelSymbolFactory;
/**
* @param dataModelSymbolFactory
*/
public DefaultDataTableSymbolFactory(
final AbstractDataModelVariableFactory dataModelSymbolFactory)
{
assert dataModelSymbolFactory != null;
_dataModelSymbolFactory = dataModelSymbolFactory;
}
/**
* @param symbolName
* the name of the symbol to be created. Must not be null.
* @param dataTableElement
* the DOM element representing the dataTable tag.
* @param context
* the document context pointing to dataTableElement
* @return a symbol named symbolName based on the variable declared by
* dataTableElement
*/
public ISymbol createSymbolForDataTableValue(final String symbolName,
final Element dataTableElement,
final IStructuredDocumentContext context)
{
final String elText = AbstractDataModelVariableFactory
.getELText(dataTableElement);
final IFile file = FileContextUtil.deriveIFileFromContext(context);
if (elText != null && file != null)
{
final IStructuredDocumentContext elContext = IStructuredDocumentContextFactory.INSTANCE
.getContext(context.getStructuredDocument(),
dataTableElement.getAttributeNode("value")); //$NON-NLS-1$
final IJavaProject javaProject = JavaCore.create(file.getProject());
final ValueType valueExpr = new JSFSymbolFactory()
.getValueTypeFromEL(elText, elContext, file);
if (valueExpr != null)
{
// otherwise, we have to try to resolve the base type and see
// if it's an instanceof any of the supported implicit or
// explict types
return _dataModelSymbolFactory.createFromType(symbolName,
valueExpr, javaProject);
}
}
// by default create a default
return _dataModelSymbolFactory.getSymbolFactory().createDefaultSymbol(
symbolName, ERuntimeSource.TAG_INSTANTIATED_SYMBOL_LITERAL,
null);
}
}