| /* |
| * Copyright 2000-2013 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.plugins.gradle.settings; |
| |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.io.Serializable; |
| |
| /** |
| * Holds information about target class. |
| * |
| * @author Denis Zhdanov |
| * @since 8/15/13 2:52 PM |
| */ |
| public class ClassHolder<T> implements Serializable { |
| |
| private static final long serialVersionUID = 1L; |
| |
| @NotNull private final String myClassName; |
| |
| @Nullable private transient Class<T> myTargetClass; |
| |
| /** |
| * @param targetClass class to use |
| */ |
| @SuppressWarnings("NullableProblems") |
| public ClassHolder(@NotNull Class<T> targetClass) { |
| myTargetClass = targetClass; |
| myClassName = myTargetClass.getName(); |
| } |
| |
| @NotNull |
| public static <T> ClassHolder<T> from(@NotNull Class<T> clazz) { |
| return new ClassHolder<T>(clazz); |
| } |
| |
| @SuppressWarnings("unchecked") |
| @NotNull |
| public Class<T> getTargetClass() throws ClassNotFoundException { |
| if (myTargetClass == null) { |
| // We're not afraid of race condition here as the class will be loaded by the same class loader. |
| myTargetClass = (Class<T>)Class.forName(myClassName); |
| } |
| return myTargetClass; |
| } |
| |
| @NotNull |
| public String getTargetClassName() { |
| return myClassName; |
| } |
| |
| @Override |
| public int hashCode() { |
| return myClassName.hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| ClassHolder holder = (ClassHolder)o; |
| |
| if (!myClassName.equals(holder.myClassName)) return false; |
| if (myTargetClass != null ? !myTargetClass.equals(holder.myTargetClass) : holder.myTargetClass != null) return false; |
| |
| return true; |
| } |
| |
| @Override |
| public String toString() { |
| return myClassName; |
| } |
| } |