spring-retry RetryContextSupport 源码
spring-retry RetryContextSupport 代码
文件路径：/src/main/java/org/springframework/retry/context/RetryContextSupport.java
/*
* Copyright 2006-2014 the original author or authors.
*
* 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
*
* https://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.springframework.retry.context;
import org.springframework.core.AttributeAccessorSupport;
import org.springframework.retry.RetryContext;
import org.springframework.retry.RetryPolicy;
/**
* @author Dave Syer
*/
@SuppressWarnings("serial")
public class RetryContextSupport extends AttributeAccessorSupport implements RetryContext {
private final RetryContext parent;
private volatile boolean terminate = false;
private volatile int count;
private volatile Throwable lastException;
public RetryContextSupport(RetryContext parent) {
super();
this.parent = parent;
}
public RetryContext getParent() {
return this.parent;
}
public boolean isExhaustedOnly() {
return terminate;
}
public void setExhaustedOnly() {
terminate = true;
}
public int getRetryCount() {
return count;
}
public Throwable getLastThrowable() {
return lastException;
}
/**
* Set the exception for the public interface {@link RetryContext}, and also increment
* the retry count if the throwable is non-null.
*
* All {@link RetryPolicy} implementations should use this method when they register
* the throwable. It should only be called once per retry attempt because it
* increments a counter.
*
* Use of this method is not enforced by the framework - it is a service provider
* contract for authors of policies.
* @param throwable the exception that caused the current retry attempt to fail.
*/
public void registerThrowable(Throwable throwable) {
this.lastException = throwable;
if (throwable != null)
count++;
}
@Override
public String toString() {
return String.format("[RetryContext: count=%d, lastException=%s, exhausted=%b]", count, lastException,
terminate);
}
}
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