/*
* Copyright 1999-2015 dangdang.com.
* <p>
* 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.
* </p>
*/
package com.dangdang.ddframe.job.reg.exception;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.zookeeper.KeeperException.ConnectionLossException;
import org.apache.zookeeper.KeeperException.NoNodeException;
import org.apache.zookeeper.KeeperException.NodeExistsException;
/**
* 注册中心异常处理类.
*
* @author zhangliang
*/
@Slf4j
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public final class RegExceptionHandler {
/**
* 处理异常.
*
* <p>处理掉中断和连接失效异常并继续抛注册中心.</p>
*
* @param cause 待处理异常.
*/
public static void handleException(final Exception cause) {
if (isIgnoredException(cause) || null != cause.getCause() && isIgnoredException(cause.getCause())) {
log.debug("Elastic job: ignored exception for: {}", cause.getMessage());
} else if (cause instanceof InterruptedException) {
Thread.currentThread().interrupt();
} else {
throw new RegException(cause);
}
}
private static boolean isIgnoredException(final Throwable cause) {
return null != cause && (cause instanceof ConnectionLossException || cause instanceof NoNodeException || cause instanceof NodeExistsException);
}
}