| /* |
| * Copyright 2000-2009 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 com.intellij.lang; |
| |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.extensions.CustomLoadingExtensionPointBean; |
| import com.intellij.openapi.util.NotNullLazyValue; |
| import com.intellij.util.KeyedLazyInstance; |
| import com.intellij.util.xmlb.annotations.Attribute; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author yole |
| */ |
| public class LanguageExtensionPoint<T> extends CustomLoadingExtensionPointBean implements KeyedLazyInstance<T> { |
| |
| // these must be public for scrambling compatibility |
| @Attribute("language") |
| public String language; |
| |
| @Attribute("implementationClass") |
| public String implementationClass; |
| |
| private final NotNullLazyValue<T> myHandler = new NotNullLazyValue<T>() { |
| @Override |
| @NotNull |
| protected T compute() { |
| try { |
| return (T)instantiateExtension(implementationClass, ApplicationManager.getApplication().getPicoContainer()); |
| } |
| catch (ClassNotFoundException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| }; |
| |
| @Override |
| public T getInstance() { |
| return myHandler.getValue(); |
| } |
| |
| @Override |
| public String getKey() { |
| return language; |
| } |
| } |