| /******************************************************************************* |
| * Copyright (c) 2006, 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: |
| * Gerry Kessler/Oracle - initial API and implementation |
| * |
| ********************************************************************************/ |
| |
| package org.eclipse.jst.jsf.metadataprocessors.internal; |
| |
| import java.util.HashMap; |
| |
| import org.eclipse.core.runtime.IExtension; |
| import org.eclipse.core.runtime.IExtensionPoint; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.InvalidRegistryObjectException; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.jst.jsf.core.internal.JSFCorePlugin; |
| |
| /** |
| * Abstract registry of <code>AbstractMetaDataEnabledType<code> |
| * mapped by type id. |
| * |
| * @author Gerry Kessler - Oracle |
| * |
| */ |
| public abstract class AbstractMetaDataEnabledTypeRegistry { |
| private final HashMap typeMap; //map of types keyed by id |
| private final String ext_pt_id; //type ext-pt id |
| |
| /** |
| * @param extPtId |
| */ |
| public AbstractMetaDataEnabledTypeRegistry(String extPtId){ |
| typeMap = new HashMap(); |
| ext_pt_id = extPtId; |
| |
| readRegistry(); |
| } |
| |
| /** |
| * @param bundleID |
| * @param id |
| * @param klass |
| * @param runtimeType |
| */ |
| protected void registerType(String bundleID, String id, String klass, String runtimeType){ |
| AbstractMetaDataEnabledType atype = new AbstractMetaDataEnabledType(bundleID, id, klass); |
| if (!typeMap.containsKey(atype.getTypeID())){ |
| typeMap.put(atype.getTypeID(), atype); |
| } |
| else { |
| //is there any point in putting this more in the user's face? this is really an internal error. |
| JSFCorePlugin.log(IStatus.ERROR, "Duplicate RuntimeTypeId being registered from " + ext_pt_id + ": " + atype.getTypeID()); |
| } |
| } |
| |
| /** |
| * Return the metadata enabled type for the given id |
| * @param id |
| * @return type |
| */ |
| public AbstractMetaDataEnabledType getType(String id){ |
| if (typeMap.containsKey(id)) |
| { |
| return (AbstractMetaDataEnabledType)typeMap.get(id); |
| } |
| return null; |
| } |
| |
| /** |
| * Reads the extensions for a particular type id |
| */ |
| protected void readRegistry() { |
| try { |
| IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(JSFCorePlugin.PLUGIN_ID, ext_pt_id); |
| IExtension[] extensions = point.getExtensions(); |
| for (int i=0;i < extensions.length;i++){ |
| IExtension ext = extensions[i]; |
| for (int j=0;j < ext.getConfigurationElements().length;j++){ |
| final String bundleId = ext.getConfigurationElements()[j].getContributor().getName(); |
| final String id = ext.getConfigurationElements()[j].getAttribute("id"); |
| String klass = ext.getConfigurationElements()[j].getAttribute("class"); |
| final String runtimeType = ext.getConfigurationElements()[j].getAttribute("runtime-type"); |
| if (klass == null || klass.trim().equals("")){ |
| klass = getDefaultClassName(); |
| } |
| registerType(bundleId, id, klass, runtimeType); |
| } |
| } |
| } catch (InvalidRegistryObjectException e) { |
| JSFCorePlugin.log(e, "Unable to read " + JSFCorePlugin.PLUGIN_ID + ext_pt_id + " registry"); |
| } |
| } |
| |
| /** |
| * @return default classname to use for the type |
| */ |
| protected abstract String getDefaultClassName(); |
| |
| |
| } |