/*******************************************************************************
* 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()); //$NON-NLS-1$ //$NON-NLS-2$
}
}
/**
* 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"); //$NON-NLS-1$
String klass = ext.getConfigurationElements()[j].getAttribute("class"); //$NON-NLS-1$
final String runtimeType = ext.getConfigurationElements()[j].getAttribute("runtime-type"); //$NON-NLS-1$
if (klass == null || klass.trim().equals("")){ //$NON-NLS-1$
klass = getDefaultClassName();
}
registerType(bundleId, id, klass, runtimeType);
}
}
} catch (InvalidRegistryObjectException e) {
JSFCorePlugin.log(e, "Unable to read " + JSFCorePlugin.PLUGIN_ID + ext_pt_id + " registry"); //$NON-NLS-1$ //$NON-NLS-2$
}
}
/**
* @return default classname to use for the type
*/
protected abstract String getDefaultClassName();
}