dubbo ReconnectTimerTask 源码
dubbo ReconnectTimerTask 代码
文件路径：/dubbo-remoting/dubbo-remoting-api/src/main/java/org/apache/dubbo/remoting/exchange/support/header/ReconnectTimerTask.java
/*
* 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.dubbo.remoting.exchange.support.header;
import org.apache.dubbo.common.logger.Logger;
import org.apache.dubbo.common.logger.LoggerFactory;
import org.apache.dubbo.remoting.Channel;
import org.apache.dubbo.remoting.Client;
/**
* ReconnectTimerTask
*/
public class ReconnectTimerTask extends AbstractTimerTask {
private static final Logger logger = LoggerFactory.getLogger(ReconnectTimerTask.class);
private final int idleTimeout;
public ReconnectTimerTask(ChannelProvider channelProvider, Long heartbeatTimeoutTick, int idleTimeout) {
super(channelProvider, heartbeatTimeoutTick);
this.idleTimeout = idleTimeout;
}
@Override
protected void doTask(Channel channel) {
try {
Long lastRead = lastRead(channel);
Long now = now();
// Rely on reconnect timer to reconnect when AbstractClient.doConnect fails to init the connection
if (!channel.isConnected()) {
try {
logger.info("Initial connection to " + channel);
((Client) channel).reconnect();
} catch (Exception e) {
logger.error("Fail to connect to " + channel, e);
}
// check pong at client
} else if (lastRead != null && now - lastRead > idleTimeout) {
logger.warn("Reconnect to channel " + channel + ", because heartbeat read idle time out: "
+ idleTimeout + "ms");
try {
((Client) channel).reconnect();
} catch (Exception e) {
logger.error(channel + "reconnect failed during idle time.", e);
}
}
} catch (Throwable t) {
logger.warn("Exception when reconnect to remote channel " + channel.getRemoteAddress(), t);
}
}
}
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