| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * 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.jetbrains.jps.model.impl; |
| |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.jps.model.*; |
| import org.jetbrains.jps.model.ex.JpsCompositeElementBase; |
| import org.jetbrains.jps.model.ex.JpsElementChildRoleBase; |
| |
| import java.util.List; |
| |
| /** |
| * @author nik |
| */ |
| public abstract class JpsNamedElementReferenceBase<S extends JpsNamedElement, T extends JpsNamedElement, Self extends JpsNamedElementReferenceBase<S, T, Self>> |
| extends JpsCompositeElementBase<Self> implements JpsElementReference<T> { |
| private static final JpsElementChildRole<JpsElementReference<? extends JpsCompositeElement>> PARENT_REFERENCE_ROLE = JpsElementChildRoleBase |
| .create("parent"); |
| protected final String myElementName; |
| |
| protected JpsNamedElementReferenceBase(@NotNull String elementName, @NotNull JpsElementReference<? extends JpsCompositeElement> parentReference) { |
| myElementName = elementName; |
| myContainer.setChild(PARENT_REFERENCE_ROLE, parentReference); |
| } |
| |
| protected JpsNamedElementReferenceBase(JpsNamedElementReferenceBase<S, T, Self> original) { |
| super(original); |
| myElementName = original.myElementName; |
| } |
| |
| @Override |
| public T resolve() { |
| final JpsCompositeElement parent = getParentReference().resolve(); |
| if (parent == null) return null; |
| |
| JpsElementCollection<? extends S> collection = getCollection(parent); |
| if (collection == null) return null; |
| |
| final List<? extends S> elements = collection.getElements(); |
| for (S element : elements) { |
| if (element.getName().equals(myElementName)) { |
| T resolved = resolve(element); |
| if (resolved != null) { |
| return resolved; |
| } |
| } |
| } |
| return null; |
| } |
| |
| @Nullable |
| protected abstract JpsElementCollection<? extends S> getCollection(@NotNull JpsCompositeElement parent); |
| |
| @Nullable |
| protected abstract T resolve(S element); |
| |
| public JpsElementReference<? extends JpsCompositeElement> getParentReference() { |
| return myContainer.getChild(PARENT_REFERENCE_ROLE); |
| } |
| |
| @Override |
| public JpsElementReference<T> asExternal(@NotNull JpsModel model) { |
| model.registerExternalReference(this); |
| return this; |
| } |
| } |