org.springframework.boot.devtools.restart.FailureHandler Maven / Gradle / Ivy
/*
* Copyright 2012-2019 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.boot.devtools.restart;
/**
* Strategy used to handle launch failures.
*
* @author Phillip Webb
* @since 1.3.0
*/
@FunctionalInterface
public interface FailureHandler {
/**
* {@link FailureHandler} that always aborts.
*/
FailureHandler NONE = (failure) -> Outcome.ABORT;
/**
* Handle a run failure. Implementations may block, for example to wait until specific
* files are updated.
* @param failure the exception
* @return the outcome
*/
Outcome handle(Throwable failure);
/**
* Various outcomes for the handler.
*/
enum Outcome {
/**
* Abort the relaunch.
*/
ABORT,
/**
* Try again to relaunch the application.
*/
RETRY
}
}