| /******************************************************************************* |
| * 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: |
| * Gerry Kessler/Oracle - initial API and implementation |
| * |
| ********************************************************************************/ |
| |
| package org.eclipse.jst.jsf.metadataprocessors; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.jst.jsf.metadataprocessors.internal.IMetaDataEnabledFeatureExtension; |
| import org.eclipse.jst.jsf.metadataprocessors.internal.MetaDataEnabledFeatureAdapterFactory; |
| import org.eclipse.jst.jsf.metadataprocessors.internal.MetaDataEnabledFeatureRegistry; |
| |
| |
| /** |
| * Default implementation that a metadata type should strongly consider for using as it's root. |
| * This implementation allows for a class implementing {@link ITypeDescriptor} to also contain features so |
| * that it is not necessary to declare the features using the MetaDataEnabledFeatures ext-pt |
| * <p><b>Provisional API - subject to change</b></p> |
| * @author Gerry Kessler - Oracle |
| */ |
| public abstract class AbstractRootTypeDescriptor extends AbstractMetaDataEnabledFeature |
| implements ITypeDescriptor { |
| |
| private IType type; |
| |
| /** |
| * Default implementation that will return <code>this</code> if it supports the processing feature, |
| * and all {@link IMetaDataEnabledFeature}s that also support this feature on this type. The caller can determine |
| * which one or more of the returned processors to use. |
| * |
| * @param processingFeature class |
| * @return List of <code>IMetaDataEnabledFeature</code>s that support the |
| * specified featureType interface. |
| * |
| * @see org.eclipse.jst.jsf.metadataprocessors.ITypeDescriptor#getFeatureAdapters(java.lang.Class) |
| */ |
| public List getFeatureAdapters(Class processingFeature) { |
| Assert.isTrue(processingFeature.isInterface()); |
| List ret = new ArrayList(3); |
| if (processingFeature.isInstance(this)) { |
| // ((IMetaDataEnabledFeature)this).setBundleID(type.getBundleID()); |
| ret.add(this); |
| } |
| |
| //add extensions here |
| ret.addAll(findMetaDataEnabledFeaturesForThisType(processingFeature)); |
| return ret; |
| |
| } |
| |
| /** |
| * This implementation relies on the the feature implementor using a subclass of AbstractRootTypeDescriptor |
| * which implements {@link IMetaDataEnabledFeature}. |
| * |
| * @param processingFeature |
| * @return list of <code>IMetaDataEnabledFeature</code>s |
| */ |
| protected final List<IMetaDataEnabledFeature> findMetaDataEnabledFeaturesForThisType(Class processingFeature) { |
| Map <String, IMetaDataEnabledFeature> mapOfFeatures = new HashMap<String, IMetaDataEnabledFeature>(); |
| List extensions = MetaDataEnabledFeatureRegistry.getInstance() |
| .getFeatures(getTypeExtension().getTypeID()); |
| |
| if (!extensions.isEmpty()){ |
| for (int i=0;i<extensions.size();i++){ |
| IMetaDataEnabledFeatureExtension aFeature = (IMetaDataEnabledFeatureExtension)extensions.get(i); |
| IMetaDataEnabledFeature feature = MetaDataEnabledFeatureAdapterFactory.getInstance().getFeatureAdapter(aFeature, processingFeature); |
| if (feature != null && processingFeature.isInstance(feature) |
| && ! mapOfFeatures.containsKey(aFeature.getClassName())){ |
| mapOfFeatures.put(aFeature.getClassName(),feature); |
| } |
| } |
| } |
| List<IMetaDataEnabledFeature> ret = new ArrayList<IMetaDataEnabledFeature>(mapOfFeatures.size()); |
| for (IMetaDataEnabledFeature feature: mapOfFeatures.values()){ |
| ret.add(feature); |
| } |
| return ret; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.jsf.metadataprocessors.ITypeDescriptor#getRuntimeType() |
| */ |
| public IType getTypeExtension() { |
| return type; |
| } |
| |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.jsf.metadataprocessors.ITypeDescriptor#setRuntimeType(org.eclipse.jst.jsf.metadataprocessors.internal.AbstractMetaDataEnabledType) |
| */ |
| public void setTypeExtension(IType type) { |
| this.type = type; |
| } |
| |
| |
| } |