/*
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* Copyright 2002-2008 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.walker.infrastructure.core;
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/**
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* Helper class for implementing exception classes which are capable of
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* holding nested exceptions. Necessary because we can't share a base
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* class among different exception types.
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*
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* <p>Mainly for use within the framework.
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*
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* @author Juergen Hoeller
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* @since 2.0
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* @see NestedRuntimeException
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* @see NestedCheckedException
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// * @see org.springframework.web.util.NestedServletException
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*/
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public abstract class NestedExceptionUtils {
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/**
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* Build a message for the given base message and root cause.
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* @param message the base message
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* @param cause the root cause
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* @return the full exception message
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*/
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public static String buildMessage(String message, Throwable cause) {
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if (cause != null) {
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StringBuilder sb = new StringBuilder();
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if (message != null) {
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sb.append(message).append("; ");
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}
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sb.append("nested exception is ").append(cause);
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return sb.toString();
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}
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else {
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return message;
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}
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}
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}
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