| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.netbeans.modules.java.classpath; |
| |
| import org.netbeans.api.annotations.common.NonNull; |
| import org.netbeans.api.java.classpath.ClassPath; |
| import org.netbeans.spi.java.classpath.ClassPathImplementation; |
| import org.openide.util.Exceptions; |
| import org.openide.util.Parameters; |
| |
| |
| public abstract class ClassPathAccessor { |
| |
| private static volatile ClassPathAccessor DEFAULT; |
| |
| |
| public static synchronized ClassPathAccessor getDefault() { |
| ClassPathAccessor instance = DEFAULT; |
| if (instance == null) { |
| Class<?> c = ClassPath.class; |
| try { |
| Class.forName(c.getName(), true, c.getClassLoader()); |
| instance = DEFAULT; |
| assert instance != null; |
| } catch (Exception ex) { |
| Exceptions.printStackTrace(ex); |
| } |
| } |
| return instance; |
| } |
| |
| public static void setDefault(@NonNull final ClassPathAccessor accessor) { |
| Parameters.notNull("accessor", accessor); //NOI18N |
| DEFAULT = accessor; |
| } |
| |
| public abstract ClassPath createClassPath(ClassPathImplementation spiClasspath); |
| |
| public abstract ClassPathImplementation getClassPathImpl (ClassPath cp); |
| |
| } |