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/*
* Created on Nov 23, 2004
*
* TODO To change the template for this generated file go to
* Window - Preferences - Java - Code Style - Code Templates
*/
package org.eclipse.wst.validation.internal;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.jem.util.RegistryReader;
import org.eclipse.wst.validation.internal.plugin.ValidationPlugin;
/*******************************************************************************
* Copyright (c) 2001, 2004 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
*******************************************************************************/
public class ValidationSelectionHandlerRegistryReader extends RegistryReader {
public static final String VALIDATION_SELECTION_HANDLER = "validationSelectionHandler"; //$NON-NLS-1$
static final String ATT_ID = "id"; //$NON-NLS-1$
static final String ATT_HANDLER_CLASS = "handlerClass"; //$NON-NLS-1$
static final String ATT_SELECTION_TYPE = "selectionType"; //$NON-NLS-1$
private static ValidationSelectionHandlerRegistryReader INSTANCE = null;
private List validationSelectionHandlers = null;
/**
* Default constructor
*/
public ValidationSelectionHandlerRegistryReader() {
super(ValidationPlugin.PLUGIN_ID, VALIDATION_SELECTION_HANDLER);
}
public static ValidationSelectionHandlerRegistryReader getInstance() {
if (INSTANCE == null) {
INSTANCE = new ValidationSelectionHandlerRegistryReader();
INSTANCE.readRegistry();
}
return INSTANCE;
}
/* (non-Javadoc)
* @see org.eclipse.jem.util.RegistryReader#readElement(org.eclipse.core.runtime.IConfigurationElement)
*/
public boolean readElement(IConfigurationElement element) {
if (!element.getName().equals(VALIDATION_SELECTION_HANDLER))
return false;
// String handlerClass = element.getAttribute(ATT_HANDLER_CLASS);
String selectionType = element.getAttribute(ATT_SELECTION_TYPE);
IValidationSelectionHandler handler = null;
try {
handler = (IValidationSelectionHandler) element.createExecutableExtension(ATT_HANDLER_CLASS);
handler.setValidationTypeString(selectionType);
getValidationSelectionHandlers().add(handler);
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
private List getValidationSelectionHandlers() {
if (validationSelectionHandlers == null)
validationSelectionHandlers = new ArrayList();
return validationSelectionHandlers;
}
public Object getExtendedType(Object selection) {
Object result = null;
for (int i=0; i<getValidationSelectionHandlers().size(); i++ ) {
IValidationSelectionHandler handler = (IValidationSelectionHandler) getValidationSelectionHandlers().get(i);
result = handler.getBaseValidationType(selection);
if (result != null)
break;
}
return result;
}
}