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InformerExceptionHandler.java
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InformerExceptionHandler.java
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/**
* Copyright (C) 2015 Red Hat, Inc.
*
* 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 io.fabric8.kubernetes.client.informers;
public interface InformerExceptionHandler {
public enum EventType {
/**
* an exception that occurs trying to perform the list or watch operation. The default handling is to log the exception.
*/
LIST_OR_WATCH,
/**
* an exception that occurs invoking a {@link ResourceEventHandler} method. The default handling is to log the exception.
*/
HANDLER
}
/**
* Determine if the informer should stop given from a non-http gone WatchException cause.
* <p>
* The default behavior is to terminate as we cannot guarantee if the state is still correct
*
* @param t the non-http gone WatchException cause
* @return true if the informer should stop, false if it should attempt to keep running
*/
default boolean shouldStop(Throwable t) {
return true;
}
/**
* Override the default handling of exceptions seen while the informer is running.
* <p>
* If you want to stop the informer as a side-effect of this call, then construct your implementation
* of this class with a reference to the informer then call the stop method.
*/
void onException(EventType eventType, Throwable t);
/**
* Called after each time the list, sync and watch operations have been successful.
*/
default void onWatching() {
}
}