| /* |
| * 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.apache.geode.internal.lang; |
| |
| /** |
| * The ThrowableUtils class is an abstract utility class for working with {@code Throwable}s. |
| * <p/> |
| * |
| * @see java.lang.Throwable |
| */ |
| public abstract class ThrowableUtils { |
| |
| /** |
| * Get the root cause of a {@link Throwable}. Returns the specified {@code throwable} if its |
| * {@code getCause} returns null. |
| * |
| * @param throwable the {@code Throwable} to get the root cause of. |
| * @return the root cause of the specified {@code throwable}. |
| * |
| * @throws NullPointerException if {@code throwable} is null |
| */ |
| public static Throwable getRootCause(Throwable throwable) { |
| if (throwable.getCause() == null) { |
| return throwable; |
| } |
| |
| Throwable cause; |
| while ((cause = throwable.getCause()) != null) { |
| throwable = cause; |
| } |
| return throwable; |
| } |
| |
| /** |
| * Returns true if the {@link Throwable} or any of its causes as returned by {@code getCause()} |
| * are an instance of the specified subclass of {@code Throwable}. |
| * |
| * @param throwable the {@code Throwable} to check the causes of. |
| * @param causeClass the subclass of {@code Throwable} to check for. |
| * @return true if any cause of {@code throwable} is an instance of {@code causeClass}. |
| * |
| * @throws NullPointerException if {@code throwable} is null |
| */ |
| public static boolean hasCauseType(Throwable throwable, Class<? extends Throwable> causeClass) { |
| if (causeClass.isInstance(throwable)) { |
| return true; |
| } |
| |
| Throwable cause; |
| while ((cause = throwable.getCause()) != null) { |
| throwable = cause; |
| if (causeClass.isInstance(throwable)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Returns true if the {@link Throwable} or any of its causes contain the specified |
| * {@code message}. |
| * |
| * @param throwable the {@code Throwable} to check the causes of. |
| * @param message the {@code Throwable} message to check for. |
| * @return true if any cause of {@code throwable} contains the specified {@code message}. |
| * |
| * @throws NullPointerException if {@code throwable} is null |
| */ |
| public static boolean hasCauseMessage(Throwable throwable, String message) { |
| if (throwable.getMessage().contains(message)) { |
| return true; |
| } |
| |
| Throwable cause; |
| while ((cause = throwable.getCause()) != null) { |
| throwable = cause; |
| if (throwable.getMessage().contains(message)) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| /** |
| * Set the root cause of an exception, if possible, to be newRootCause |
| */ |
| public static void setRootCause(Throwable exception, Throwable newRootCause) { |
| Throwable nt = exception; |
| while (nt.getCause() != null) { |
| nt = nt.getCause(); |
| } |
| |
| // Don't try to set something as it's own cause |
| if (nt == newRootCause) { |
| return; |
| } |
| |
| nt.initCause(newRootCause); |
| } |
| |
| } |