001/* 002 * (C) Copyright 2018 Nuxeo SA (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.lib.stream.computation; 020 021import java.time.Duration; 022 023import net.jodah.failsafe.RetryPolicy; 024 025/** 026 * Defines how a computation should handle the retries, fallback and batching if any. 027 * 028 * @since 10.3 029 */ 030public class ComputationPolicy { 031 032 public static final RetryPolicy NO_RETRY = new RetryPolicy().withMaxRetries(0); 033 034 /* No retry, abort on failure, no batching */ 035 public static final ComputationPolicy NONE = new ComputationPolicyBuilder().retryPolicy(NO_RETRY) 036 .continueOnFailure(false) 037 .build(); 038 039 protected final RetryPolicy retryPolicy; 040 041 protected final int batchCapacity; 042 043 protected final Duration batchThreshold; 044 045 protected final boolean skipFailure; 046 047 protected final int skipFirstFailures; 048 049 public ComputationPolicy(ComputationPolicyBuilder builder) { 050 batchCapacity = builder.batchCapacity; 051 batchThreshold = builder.batchThreshold; 052 skipFailure = builder.skipFailure; 053 retryPolicy = builder.retryPolicy; 054 skipFirstFailures = builder.skipFirstFailures; 055 } 056 057 public RetryPolicy getRetryPolicy() { 058 return retryPolicy; 059 } 060 061 public int getBatchCapacity() { 062 return batchCapacity; 063 } 064 065 public Duration getBatchThreshold() { 066 return batchThreshold; 067 } 068 069 public boolean continueOnFailure() { 070 return skipFailure; 071 } 072 073 public int getSkipFirstFailures() { 074 return skipFirstFailures; 075 } 076 077 /** 078 * @deprecated since 10.3 use {@link #continueOnFailure()} instead 079 */ 080 @Deprecated 081 public boolean isSkipFailure() { 082 return skipFailure; 083 } 084 085 @Override 086 public String toString() { 087 return "ComputationPolicy{" + "maxRetries=" + retryPolicy.getMaxRetries() + ", delay=" + retryPolicy.getDelay() 088 + ", delayMax=" + retryPolicy.getMaxDelay() + ", continueOnFailure=" + skipFailure + ", batchCapacity=" 089 + batchCapacity + ", batchThreshold=" + batchThreshold + '}'; 090 } 091}