io.camunda.zeebe.spring.client.jobhandling.DefaultCommandExceptionHandlingStrategy Maven / Gradle / Ivy
/*
* Copyright © 2017 camunda services GmbH ([email protected])
*
* 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.camunda.zeebe.spring.client.jobhandling;
import io.camunda.zeebe.client.api.worker.BackoffSupplier;
import io.grpc.Status;
import io.grpc.StatusRuntimeException;
import java.lang.invoke.MethodHandles;
import java.util.EnumSet;
import java.util.Set;
import java.util.concurrent.ScheduledExecutorService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultCommandExceptionHandlingStrategy implements CommandExceptionHandlingStrategy {
public static final Set SUCCESS_CODES =
EnumSet.of(Status.Code.OK, Status.Code.ALREADY_EXISTS);
public static final Set RETRIABLE_CODES =
EnumSet.of(
Status.Code.CANCELLED,
Status.Code.DEADLINE_EXCEEDED,
Status.Code.RESOURCE_EXHAUSTED,
Status.Code.ABORTED,
Status.Code.UNAVAILABLE,
Status.Code.DATA_LOSS);
public static final Set IGNORABLE_FAILURE_CODES = EnumSet.of(Status.Code.NOT_FOUND);
public static final Set FAILURE_CODES =
EnumSet.of(
Status.Code.INVALID_ARGUMENT,
Status.Code.PERMISSION_DENIED,
Status.Code.FAILED_PRECONDITION,
Status.Code.OUT_OF_RANGE,
Status.Code.UNIMPLEMENTED,
Status.Code.INTERNAL,
Status.Code.UNAUTHENTICATED);
private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final BackoffSupplier backoffSupplier;
private final ScheduledExecutorService scheduledExecutorService;
public DefaultCommandExceptionHandlingStrategy(
final BackoffSupplier backoffSupplier,
final ScheduledExecutorService scheduledExecutorService) {
this.backoffSupplier = backoffSupplier;
this.scheduledExecutorService = scheduledExecutorService;
}
@Override
public void handleCommandError(final CommandWrapper command, final Throwable throwable) {
if (StatusRuntimeException.class.isAssignableFrom(throwable.getClass())) {
final StatusRuntimeException exception = (StatusRuntimeException) throwable;
final Status.Code code = exception.getStatus().getCode();
// Success codes should not lead to an exception!
if (IGNORABLE_FAILURE_CODES.contains(code)) {
LOG.warn(
"Ignoring the error of type '"
+ code
+ "' during "
+ command
+ ". Job might have been canceled or already completed.");
// TODO: Is Ignorance really a good idea? Think of some local transaction that might need to
// TODO: be marked for rollback! But for sure, retry does not help at all
return;
} else if (RETRIABLE_CODES.contains(code)) {
if (command.hasMoreRetries()) {
command.increaseBackoffUsing(backoffSupplier);
LOG.warn("Retrying " + command + " after error of type '" + code + "' with backoff");
command.scheduleExecutionUsing(scheduledExecutorService);
return;
} else {
throw new RuntimeException(
"Could not execute "
+ command
+ " due to error of type '"
+ code
+ "' and no retries are left",
throwable);
}
} else if (FAILURE_CODES.contains(code)) {
throw new RuntimeException(
"Could not execute " + command + " due to error of type '" + code + "'", throwable);
}
}
// if it wasn't handled yet, throw an exception
throw new RuntimeException(
"Could not execute " + command + " due to exception: " + throwable.getMessage(), throwable);
}
}