/*******************************************************************************
* Copyright (c) 2001, 2005 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.xml.core.internal.commentelement.impl;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
import org.eclipse.wst.xml.core.internal.commentelement.CommentElementHandler;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
/**
*/
public class CommentElementRegistry {
private static CommentElementRegistry fInstance = null;
public synchronized static CommentElementRegistry getInstance() {
if (fInstance == null) {
fInstance = new CommentElementRegistry();
}
return fInstance;
}
private String EXTENSION_POINT_ID = "commentElementHandler"; //$NON-NLS-1$
private CommentElementConfiguration[] fConfigurations = null;
private String PLUGIN_ID = "org.eclipse.wst.sse.core"; //$NON-NLS-1$
/**
* Constructor for CommentElementRegistry.
*/
private CommentElementRegistry() {
super();
}
public CommentElementConfiguration[] getConfigurations() {
if (fConfigurations == null) {
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint point = registry.getExtensionPoint(PLUGIN_ID, EXTENSION_POINT_ID);
if (point != null) {
IConfigurationElement[] elements = point.getConfigurationElements();
fConfigurations = new CommentElementConfiguration[elements.length];
for (int i = 0; i < elements.length; i++) {
fConfigurations[i] = new CommentElementConfiguration(elements[i]);
}
}
if (fConfigurations == null) {
fConfigurations = new CommentElementConfiguration[0];
}
}
return fConfigurations;
}
public boolean setupCommentElement(IDOMElement element) {
CommentElementConfiguration configurations[] = getConfigurations();
int length = configurations.length;
for (int i = 0; i < length; i++) {
CommentElementConfiguration conf = configurations[i];
boolean isJSP = element.isJSPTag();
if (isJSP && conf.acceptJSPComment() || !isJSP && conf.acceptXMLComment()) {
CommentElementHandler handler = conf.getHandler();
if (handler.isCommentElement(element)) {
conf.setupCommentElement(element);
return true;
}
}
}
return false;
}
}