| /* |
| * Copyright 2007 Sascha Weinreuter |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.intellij.plugins.relaxNG.xml.dom.impl; |
| |
| import com.intellij.psi.xml.XmlAttributeValue; |
| import org.intellij.plugins.relaxNG.model.Define; |
| import org.intellij.plugins.relaxNG.model.resolve.DefinitionResolver; |
| import org.intellij.plugins.relaxNG.xml.dom.RngGrammar; |
| import org.intellij.plugins.relaxNG.xml.dom.RngRef; |
| |
| import java.util.Set; |
| |
| /** |
| * Created by IntelliJ IDEA. |
| * User: sweinreuter |
| * Date: 05.09.2007 |
| */ |
| public abstract class RngRefImpl extends RngDomElementBase implements RngRef { |
| @Override |
| public void accept(Visitor visitor) { |
| visitor.visitRef(this); |
| } |
| |
| @Override |
| public Define getPattern() { |
| final XmlAttributeValue value = getName().getXmlAttributeValue(); |
| if (value == null) return null; |
| |
| final String name = getReferencedName(); |
| if (name == null) { |
| return null; |
| } |
| |
| final RngGrammar scope = getScope(); |
| if (scope == null) { |
| return null; |
| } |
| |
| final Set<Define> defines = DefinitionResolver.resolve(scope, name); |
| |
| // TODO: honor combine & return virtual element if defines.size() > 1 |
| return defines != null && defines.size() > 0 ? defines.iterator().next() : null; |
| } |
| |
| protected RngGrammar getScope() { |
| return getParentOfType(RngGrammar.class, true); |
| } |
| |
| @Override |
| public String getReferencedName() { |
| return getName().getValue(); |
| } |
| } |