/*******************************************************************************
* Copyright (c) 2006 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.context.resolver.structureddocument.internal.impl;
import java.util.Collections;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.jst.jsf.common.metadata.Trait;
import org.eclipse.jst.jsf.common.metadata.internal.IMetaDataDomainContext;
import org.eclipse.jst.jsf.common.metadata.internal.TraitValueHelper;
import org.eclipse.jst.jsf.common.metadata.query.internal.MetaDataQueryContextFactory;
import org.eclipse.jst.jsf.common.metadata.query.internal.MetaDataQueryFactory;
import org.eclipse.jst.jsf.common.metadata.query.internal.taglib.ITaglibDomainMetaDataQuery;
import org.eclipse.jst.jsf.context.IModelContext;
import org.eclipse.jst.jsf.context.resolver.structureddocument.IMetadataContextResolver;
import org.eclipse.jst.jsf.context.resolver.structureddocument.ITaglibContextResolver;
import org.eclipse.jst.jsf.context.resolver.structureddocument.internal.IStructuredDocumentContextResolverFactory2;
import org.eclipse.jst.jsf.context.structureddocument.IStructuredDocumentContext;
import org.w3c.dom.Attr;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* A default implementation of meta-data context resolver
*
* @author cbateman
*
*/
class MetadataContextResolver implements IMetadataContextResolver
{
private final IStructuredDocumentContext _context;
private final IStructuredDocumentContextResolverFactory2 _factory;
/**
* @param factory
* @param context
*/
public MetadataContextResolver(final IStructuredDocumentContextResolverFactory2 factory,
final IStructuredDocumentContext context)
{
_factory = factory;
_context = context;
}
public List getPropertyValue(final String key)
{
final DOMContextResolver domResolver = new DOMContextResolver(_context);
final ITaglibContextResolver tagResolver =
_factory.getTaglibContextResolverFromDelegates(_context);
final Node curNode = domResolver.getNode();
final IMetaDataDomainContext mdContext = getMDContext(_context);
if (curNode instanceof Attr)
{
final Attr attribute = (Attr) curNode;
final Element element = attribute.getOwnerElement();
final String uri = tagResolver.getTagURIForNodeName(element);
final ITaglibDomainMetaDataQuery query = (ITaglibDomainMetaDataQuery)MetaDataQueryFactory.getInstance().createQuery(mdContext);
final Trait trait = query.getQueryHelper().getTrait(uri, element.getLocalName()+"/"+attribute.getLocalName(), key); //$NON-NLS-1$
// final ITaglibDomainMetaDataModelContext mdContext = TaglibDomainMetaDataQueryHelper.createMetaDataModelContext(project, uri);
// Trait trait = TaglibDomainMetaDataQueryHelper.getTrait(mdContext, element.getLocalName()+"/"+attribute.getLocalName(), key); //$NON-NLS-1$
if( trait != null )
{
return TraitValueHelper.getValueAsListOfStrings(trait);
}
}
else if (curNode instanceof Element)
{
final Element element = (Element) curNode;
final String uri = tagResolver.getTagURIForNodeName(element);
final ITaglibDomainMetaDataQuery query = (ITaglibDomainMetaDataQuery)MetaDataQueryFactory.getInstance().createQuery(mdContext);
final Trait trait = query.getQueryHelper().getTrait(uri, element.getLocalName(), key);
// final ITaglibDomainMetaDataModelContext mdContext = TaglibDomainMetaDataQueryHelper.createMetaDataModelContext(project, uri);
// Trait trait = TaglibDomainMetaDataQueryHelper.getTrait(mdContext, element.getLocalName(), key);
if( trait != null )
{
return TraitValueHelper.getValueAsListOfStrings(trait);
}
}
return Collections.EMPTY_LIST;
}
private IMetaDataDomainContext getMDContext(
final IStructuredDocumentContext context) {
final WorkspaceContextResolver wsResolver = new WorkspaceContextResolver(context);
final IResource res = wsResolver.getResource();
if (res instanceof IFile)
return MetaDataQueryContextFactory.getInstance().createTaglibDomainModelContext((IFile)res);
return MetaDataQueryContextFactory.getInstance().createTaglibDomainModelContext(wsResolver.getProject());
}
public boolean canResolveContext(IModelContext modelContext) {
return (modelContext.getAdapter(IStructuredDocumentContext.class) != null);
}
}