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package com.yanzuoguang.mq.plan;
import com.yanzuoguang.mq.MqConfig;
import com.yanzuoguang.mq.service.MessageSendService;
import com.yanzuoguang.util.helper.StringHelper;
import com.yanzuoguang.util.thread.ThreadNext;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.stereotype.Component;
/**
* 重新发送失败的消息
*
* @author 颜佐光
*/
@Component
public class MessageFairResend implements ThreadNext.Next, InitializingBean {
private final MessageSendService messageSendService;
private final MqConfig mqConfig;
private boolean isPause = false;
public MessageFairResend(MessageSendService messageSendService, MqConfig mqConfig) {
this.messageSendService = messageSendService;
this.mqConfig = mqConfig;
}
/**
* Invoked by a BeanFactory after it has set all bean properties supplied
* (and satisfied BeanFactoryAware and ApplicationContextAware).
* <p>This method allows the bean instance to perform initialization only
* possible when all bean properties have been set and to throw an
* exception in the event of misconfiguration.
*
* @throws Exception in the event of misconfiguration (such
* as failure to set an essential property) or if initialization fails.
*/
@Override
public void afterPropertiesSet() throws Exception {
ThreadNext.start(this, "message init error");
}
@Override
public boolean next() throws Exception {
if (this.messageSendService == null) {
return true;
}
// 另外开启线程去执行数据
this.isPause = messageSendService.resendFair(StringHelper.getNewID(), mqConfig.getRetrySize());
return true;
}
@Override
public int getNextTime() {
// 暂停时，返回下次执行时间，否则返回0
return this.isPause ? mqConfig.getRetryTime() : 0;
}
}