| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.internal.expressions; |
| |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| import org.eclipse.core.expressions.CountExpression; |
| import org.eclipse.core.expressions.ElementHandler; |
| import org.eclipse.core.expressions.EqualsExpression; |
| import org.eclipse.core.expressions.Expression; |
| import org.eclipse.core.expressions.ExpressionConverter; |
| import org.eclipse.core.expressions.ExpressionTagNames; |
| import org.eclipse.core.expressions.ReferenceExpression; |
| import org.eclipse.core.expressions.TestExpression; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IConfigurationElement; |
| |
| public class StandardElementHandler extends ElementHandler { |
| |
| @Override |
| public Expression create(ExpressionConverter converter, IConfigurationElement element) throws CoreException { |
| String name= element.getName(); |
| if (name == null) { |
| return null; |
| } |
| |
| switch (name) { |
| case ExpressionTagNames.INSTANCEOF: |
| return new InstanceofExpression(element); |
| case ExpressionTagNames.TEST: |
| return new TestExpression(element); |
| case ExpressionTagNames.OR: |
| { |
| OrExpression result= new OrExpression(); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.AND: |
| { |
| AndExpression result= new AndExpression(); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.NOT: |
| return new NotExpression(converter.perform(element.getChildren()[0])); |
| case ExpressionTagNames.WITH: |
| { |
| WithExpression result= new WithExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.ADAPT: |
| { |
| AdaptExpression result= new AdaptExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.ITERATE: |
| { |
| IterateExpression result= new IterateExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.COUNT: |
| return new CountExpression(element); |
| case ExpressionTagNames.SYSTEM_TEST: |
| return new SystemTestExpression(element); |
| case ExpressionTagNames.RESOLVE: |
| { |
| ResolveExpression result= new ResolveExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.ENABLEMENT: |
| { |
| EnablementExpression result= new EnablementExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.EQUALS: |
| return new EqualsExpression(element); |
| case ExpressionTagNames.REFERENCE: |
| return new ReferenceExpression(element); |
| default: |
| break; |
| } |
| return null; |
| } |
| |
| @Override |
| public Expression create(ExpressionConverter converter, Element element) throws CoreException { |
| String name= element.getNodeName(); |
| if (name == null) { |
| return null; |
| } |
| |
| switch (name) { |
| case ExpressionTagNames.INSTANCEOF: |
| return new InstanceofExpression(element); |
| case ExpressionTagNames.TEST: |
| return new TestExpression(element); |
| case ExpressionTagNames.OR: |
| { |
| OrExpression result= new OrExpression(); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.AND: |
| { |
| AndExpression result= new AndExpression(); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.NOT: |
| Node child = element.getFirstChild(); |
| while (child != null) { |
| if (child.getNodeType() == Node.ELEMENT_NODE) { |
| return new NotExpression(converter.perform((Element)child)); |
| } |
| child = child.getNextSibling(); |
| } |
| break; |
| case ExpressionTagNames.WITH: |
| { |
| WithExpression result= new WithExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.ADAPT: |
| { |
| AdaptExpression result= new AdaptExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.ITERATE: |
| { |
| IterateExpression result= new IterateExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.COUNT: |
| return new CountExpression(element); |
| case ExpressionTagNames.SYSTEM_TEST: |
| return new SystemTestExpression(element); |
| case ExpressionTagNames.RESOLVE: |
| { |
| ResolveExpression result= new ResolveExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.ENABLEMENT: |
| { |
| EnablementExpression result= new EnablementExpression(element); |
| processChildren(converter, element, result); |
| return result; |
| } |
| case ExpressionTagNames.EQUALS: |
| return new EqualsExpression(element); |
| case ExpressionTagNames.REFERENCE: |
| return new ReferenceExpression(element); |
| default: |
| break; |
| } |
| return null; |
| } |
| } |