| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.curator; |
| |
| import org.apache.curator.drivers.EventTrace; |
| import org.apache.curator.drivers.TracerDriver; |
| import org.apache.curator.utils.DebugUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| class RetryLoopImpl extends RetryLoop |
| { |
| private boolean isDone = false; |
| private int retryCount = 0; |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| private final long startTimeMs = System.currentTimeMillis(); |
| private final RetryPolicy retryPolicy; |
| private final AtomicReference<TracerDriver> tracer; |
| |
| private static final RetrySleeper sleeper = (time, unit) -> unit.sleep(time); |
| |
| RetryLoopImpl(RetryPolicy retryPolicy, AtomicReference<TracerDriver> tracer) |
| { |
| this.retryPolicy = retryPolicy; |
| this.tracer = tracer; |
| } |
| |
| static RetrySleeper getRetrySleeper() |
| { |
| return sleeper; |
| } |
| |
| |
| @Override |
| public boolean shouldContinue() |
| { |
| return !isDone; |
| } |
| |
| @Override |
| public void markComplete() |
| { |
| isDone = true; |
| } |
| |
| @Override |
| public void takeException(Exception exception) throws Exception |
| { |
| boolean rethrow = true; |
| if ( retryPolicy.allowRetry(exception) ) |
| { |
| if ( !Boolean.getBoolean(DebugUtils.PROPERTY_DONT_LOG_CONNECTION_ISSUES) ) |
| { |
| log.debug("Retry-able exception received", exception); |
| } |
| |
| if ( retryPolicy.allowRetry(retryCount++, System.currentTimeMillis() - startTimeMs, sleeper) ) |
| { |
| new EventTrace("retries-allowed", tracer.get()).commit(); |
| if ( !Boolean.getBoolean(DebugUtils.PROPERTY_DONT_LOG_CONNECTION_ISSUES) ) |
| { |
| log.debug("Retrying operation"); |
| } |
| rethrow = false; |
| } |
| else |
| { |
| new EventTrace("retries-disallowed", tracer.get()).commit(); |
| if ( !Boolean.getBoolean(DebugUtils.PROPERTY_DONT_LOG_CONNECTION_ISSUES) ) |
| { |
| log.debug("Retry policy not allowing retry"); |
| } |
| } |
| } |
| |
| if ( rethrow ) |
| { |
| throw exception; |
| } |
| } |
| } |