001/*
002 * (C) Copyright 2019 Nuxeo (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     bdelbosc
018 */
019package org.nuxeo.runtime.stream;
020
021import java.io.IOException;
022import java.sql.SQLException;
023import java.util.concurrent.TimeUnit;
024import java.util.concurrent.TimeoutException;
025
026import org.nuxeo.lib.stream.computation.ComputationPolicy;
027import org.nuxeo.lib.stream.computation.ComputationPolicyBuilder;
028
029import net.jodah.failsafe.RetryPolicy;
030
031/**
032 * A Computation policy that can be use for Nuxeo.
033 *
034 * @since 11.1
035 */
036public class DefaultNuxeoComputationPolicy implements StreamComputationPolicy {
037
038    @Override
039    public ComputationPolicy getPolicy(StreamProcessorDescriptor.PolicyDescriptor descriptor) {
040        RetryPolicy retryPolicy = new RetryPolicy().withMaxRetries(descriptor.maxRetries)
041                                                   .withBackoff(descriptor.delay.toMillis(),
042                                                           descriptor.maxDelay.toMillis(), TimeUnit.MILLISECONDS);
043        // NuxeoException and ConcurrentUpdateException are assignable from RuntimeException
044        retryPolicy.retryOn(RuntimeException.class, TimeoutException.class, IOException.class, SQLException.class);
045        ComputationPolicyBuilder builder = descriptor.createPolicyBuilder();
046        builder.retryPolicy(retryPolicy);
047        return builder.build();
048    }
049}