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fix fabric8io#4408: allowing for users to set the exception handling …
…behavior
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...tes-client-api/src/main/java/io/fabric8/kubernetes/client/informers/ExceptionHandler.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. | ||
*/ | ||
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package io.fabric8.kubernetes.client.informers; | ||
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import com.fasterxml.jackson.core.JsonProcessingException; | ||
import io.fabric8.kubernetes.client.Watcher; | ||
import io.fabric8.kubernetes.client.WatcherException; | ||
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public interface ExceptionHandler { | ||
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/** | ||
* Called to determine if the informer should continue to retry after the given exception. | ||
* <p> | ||
* See also {@link #isDeserializationException(Throwable)} that can help determine if the | ||
* problem is a mismatch with the target client class. | ||
* | ||
* @param isStarted true if the informer had already successfully started | ||
* @param t the non-http gone {@link WatcherException} from a | ||
* {@link Watcher#onClose(io.fabric8.kubernetes.client.WatcherException)} | ||
* or throwable from a list/watch call. | ||
* @return true if the informer should continue to retry | ||
*/ | ||
boolean retryAfterException(boolean isStarted, Throwable t); | ||
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public static boolean isDeserializationException(Throwable t) { | ||
while (t instanceof RuntimeException && !(t instanceof ClassCastException)) { | ||
Throwable cause = ((RuntimeException) t).getCause(); | ||
if (cause == t) { | ||
break; | ||
} | ||
t = cause; | ||
} | ||
return t instanceof ClassCastException || t instanceof JsonProcessingException; | ||
} | ||
} |
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