/*
* Copyright 2016 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
*
* 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 net.jodah.failsafe;
import net.jodah.failsafe.internal.util.Assert;
/**
* Tracks executions and determines when an execution can be performed for a {@link RetryPolicy}.
*
* @author Jonathan Halterman
*/
public class Execution extends AbstractExecution {
/**
* Creates a new Execution for the {@code circuitBreaker}.
*
* @throws NullPointerException if {@code circuitBreaker} is null
*/
public Execution(CircuitBreaker circuitBreaker) {
super(new FailsafeConfig<Object, FailsafeConfig<Object, ?>>().with(circuitBreaker));
}
/**
* Creates a new Execution for the {@code retryPolicy}.
*
* @throws NullPointerException if {@code retryPolicy} is null
*/
public Execution(RetryPolicy retryPolicy) {
super(new FailsafeConfig<Object, FailsafeConfig<Object, ?>>().with(retryPolicy));
}
/**
* Creates a new Execution for the {@code retryPolicy} and {@code circuitBreaker}.
*
* @throws NullPointerException if {@code retryPolicy} or {@code circuitBreaker} are null
*/
public Execution(RetryPolicy retryPolicy, CircuitBreaker circuitBreaker) {
super(new FailsafeConfig<Object, FailsafeConfig<Object, FailsafeConfig<Object, ?>>>().with(retryPolicy)
.with(circuitBreaker));
}
Execution(FailsafeConfig<Object, ?> config) {
super(config);
}
/**
* Records an execution and returns true if a retry can be performed for the {@code result}, else returns false and
* marks the execution as complete.
*
* @throws IllegalStateException if the execution is already complete
*/
public boolean canRetryFor(Object result) {
return !complete(result, null, true);
}
/**
* Records an execution and returns true if a retry can be performed for the {@code result} or {@code failure}, else
* returns false and marks the execution as complete.
*
* @throws IllegalStateException if the execution is already complete
*/
public boolean canRetryFor(Object result, Throwable failure) {
return !complete(result, failure, true);
}
/**
* Records an execution and returns true if a retry can be performed for the {@code failure}, else returns false and
* marks the execution as complete.
*
* @throws NullPointerException if {@code failure} is null
* @throws IllegalStateException if the execution is already complete
*/
public boolean canRetryOn(Throwable failure) {
Assert.notNull(failure, "failure");
return !complete(null, failure, true);
}
/**
* Records and completes the execution.
*
* @throws IllegalStateException if the execution is already complete
*/
public void complete() {
complete(null, null, false);
}
/**
* Records and attempts to complete the execution with the {@code result}. Returns true on success, else false if
* completion failed and execution should be retried.
*
* @throws IllegalStateException if the execution is already complete
*/
public boolean complete(Object result) {
return complete(result, null, true);
}
/**
* Records a failed execution and returns true if a retry can be performed for the {@code failure}, else returns false
* and completes the execution.
*
* <p>
* Alias of {@link #canRetryOn(Throwable)}
*
* @throws NullPointerException if {@code failure} is null
* @throws IllegalStateException if the execution is already complete
*/
public boolean recordFailure(Throwable failure) {
return canRetryOn(failure);
}
}