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/*******************************************************************************
* Copyright (c) 2008 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:
* Xiaonan Jiang/IBM -- extracted from https://bugs.eclipse.org/bugs/show_bug.cgi?id=206514
* Cameron Bateman/Oracle - integrated.
*
********************************************************************************/
package org.eclipse.jst.jsf.designtime.internal.symbols;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.core.resources.IProject;
import org.eclipse.jst.jsf.context.symbol.ISymbol;
import org.eclipse.jst.jsf.core.internal.JSFCorePlugin;
import org.eclipse.jst.jsf.core.jsfappconfig.internal.IJSFAppConfigManager;
import org.eclipse.jst.jsf.core.jsfappconfig.internal.JSFAppConfigManagerFactory;
import org.eclipse.jst.jsf.designtime.el.AbstractDTPropertyResolver;
import org.eclipse.jst.jsf.designtime.el.DefaultDTPropertyResolver;
import org.eclipse.jst.jsf.designtime.el.IDecorativeResolver;
import org.eclipse.jst.jsf.designtime.el.IInstancePerProjectResolver;
/**
* A design time proxy for the runtime ProperyResolver.
*
* @author xnjiang
*
*/
public class ConfigBasedDTPropertyResolver extends DefaultDTPropertyResolver
implements IInstancePerProjectResolver
{
private IProject _project;
/**
* Constructor
*
*/
public ConfigBasedDTPropertyResolver()
{
super();
}
@Override
public ISymbol[] getAllProperties(final ISymbol base)
{
final Map<String, ISymbol> allSymbols = new HashMap<String, ISymbol>();
final ISymbol[] superSymbols = super.getAllProperties(base);
for (final ISymbol superSymbol : superSymbols)
{
allSymbols.put(superSymbol.getName(), superSymbol);
}
if (JSFCorePlugin.hasDecorativePropertyResolvers())
{
final List<AbstractDTPropertyResolver> resolvers = retrieveDecorativePropertyResolvers(_project);
for (final AbstractDTPropertyResolver resolver : resolvers)
{
final ISymbol[] otherSymbols = resolver.getAllProperties(base);
for (final ISymbol otherSymbol : otherSymbols)
{
// allow subsequent resolvers to replace symbols by name
// added previously
allSymbols.put(otherSymbol.getName(), otherSymbol);
}
}
}
return allSymbols.values().toArray(ISymbol.EMPTY_SYMBOL_ARRAY);
}
@Override
public ISymbol getProperty(final ISymbol base, final int offset)
{
if (JSFCorePlugin.hasDecorativePropertyResolvers())
{
final List<AbstractDTPropertyResolver> resolvers = retrieveDecorativePropertyResolvers(_project);
// we need to iterate backwards through the resolvers, since
// the we take the first answer we receive.
for (int i = resolvers.size() - 1; i >= 0; i--)
{
final ISymbol symbol = resolvers.get(i).getProperty(base,
offset);
if (symbol != null)
{
return symbol;
}
}
}
return super.getProperty(base, offset);
}
@Override
public ISymbol getProperty(final ISymbol base, final Object propertyId)
{
if (JSFCorePlugin.hasDecorativePropertyResolvers())
{
final List<AbstractDTPropertyResolver> resolvers = retrieveDecorativePropertyResolvers(_project);
// we need to iterate backwards through the resolvers, since
// the we take the first answer we receive.
for (int i = resolvers.size() - 1; i >= 0; i--)
{
final ISymbol symbol = resolvers.get(i).getProperty(base,
propertyId);
if (symbol != null)
{
return symbol;
}
}
}
return super.getProperty(base, propertyId);
}
private List<AbstractDTPropertyResolver> retrieveDecorativePropertyResolvers(
final IProject project)
{
final IJSFAppConfigManager manager = JSFAppConfigManagerFactory
.getJSFAppConfigManagerInstance(project);
final List<String> propertyResolvers = manager.getPropertyResolvers();
final List<String> elResolvers = manager.getELResolvers();
propertyResolvers.addAll(elResolvers);
final List<AbstractDTPropertyResolver> resolvers = new ArrayList<AbstractDTPropertyResolver>();
for (final String propertyResolver : propertyResolvers)
{
final List<String> ids = JSFCorePlugin
.getPropertyResolversForName(propertyResolver);
for (final String id : ids)
{
final AbstractDTPropertyResolver resolver = JSFCorePlugin
.getPropertyResolver(id).getInstance(_project);
if (resolver instanceof IDecorativeResolver)
{
resolvers.add(resolver);
}
else
{
JSFCorePlugin.log(new Exception(), String.format("resolver %s must implement the IDecorativeResolver interface to be used", id)); //$NON-NLS-1$
}
}
}
return resolvers;
}
public void setProject(final IProject project)
{
_project = project;
}
// private void retrievePropertyResolver() {
// try {
// String str =
// project.getPersistentProperty(PERSIST_PROPERTY_KEY_PROPERTY_RESOLVERS);
// if (str != null) {
// resolvers = new ArrayList<AbstractDTPropertyResolver>();
// StringTokenizer tokenizer = new StringTokenizer(str, ",");//$NON-NLS-1$
// while (tokenizer.hasMoreTokens()) {
// AbstractDTPropertyResolver resolver =
// JSFCorePlugin.getPropertyResolvers().get(tokenizer.nextToken());
// if (resolver != null) {
// resolvers.add(resolver);
// }
// }
// } else {
// checkFacesConfigForPropertyResolver();
// }
// } catch (CoreException e) {
// checkFacesConfigForPropertyResolver();
// }
// }
//
// private void checkFacesConfigForPropertyResolver() {
// resolvers = new ArrayList<AbstractDTPropertyResolver>();
// String str = "";//$NON-NLS-1$
// boolean bFirst = true;
// List facesConfigs =
// JSFAppConfigManager.getInstance(project).getFacesConfigModels();
// Iterator itFacesConfigs = facesConfigs.iterator();
// while (itFacesConfigs.hasNext()) {
// FacesConfigType facesConfig = (FacesConfigType)itFacesConfigs.next();
// EList applications = facesConfig.getApplication();
// for (int i=0;i<applications.size();i++) {
// EList resolvers2 =
// ((ApplicationType)applications.get(i)).getPropertyResolver();
// for (int j=0;j<resolvers2.size();j++) {
// PropertyResolverType resolverType =
// (PropertyResolverType)resolvers2.get(i);
// AbstractDTPropertyResolver resolver =
// JSFCorePlugin.getPropertyResolvers().get(resolverType.getTextContent());
// if (resolver != null) {
// resolvers.add(resolver);
// if (bFirst) {
// bFirst = false;
// } else {
// str += ",";//$NON-NLS-1$
// }
// str += resolverType.getTextContent();
// }
// }
// }
// }
// try {
// if (!str.equals("")) {//$NON-NLS-1$
// project.setPersistentProperty(PERSIST_PROPERTY_KEY_PROPERTY_RESOLVERS,
// str);
// } else {
// project.setPersistentProperty(PERSIST_PROPERTY_KEY_PROPERTY_RESOLVERS,
// null);
// }
// } catch (CoreException e) {
// e.printStackTrace();
// }
// }
//
// /**
// * Called when a change in an application configuration model for which
// * this listener has been registered occurs.
// *
// * @param notification EMF {@link Notification} instance that describes
// the
// * model change.
// */
// public void notifyChanged(Notification notification) {
// checkFacesConfigForPropertyResolver();
// }
}
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