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Easy Redis Java client and Real-Time Data Platform. Valkey compatible. Sync/Async/RxJava3/Reactive API. Client side caching. Over 50 Redis based Java objects and services: JCache API, Apache Tomcat, Hibernate, Spring, Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Scheduler, RPC

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/**
 * Copyright (c) 2013-2024 Nikita Koksharov
 *
 * 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 org.redisson.api.map;

import org.redisson.api.MapOptions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Collection;
import java.util.Map;

public class RetryableMapWriter implements MapWriter {

    private static final Logger log = LoggerFactory.getLogger(RetryableMapWriter.class);

    private final MapOptions options;
    private final MapWriter mapWriter;

    public RetryableMapWriter(MapOptions options, MapWriter mapWriter) {
        this.options = options;
        this.mapWriter = mapWriter;
    }

    @Override
    public void write(Map addedMap) {
        //execute at least once
        int leftAddAttempts = Math.max(1, options.getWriterRetryAttempts());
        while (leftAddAttempts > 0) {
            try {
                //do write
                mapWriter.write(addedMap);
                break;
            } catch (Exception exception) {
                if (--leftAddAttempts == 0) {
                    throw exception;
                } else {
                    log.warn("Unable to add keys: {}, will retry after {}ms", addedMap, options.getWriterRetryInterval(), exception);
                    try {
                        Thread.sleep(options.getWriterRetryInterval());
                    } catch (InterruptedException ignore) {
                    }
                }
            }
        }
    }

    @Override
    public void delete(Collection keys) {
        //execute at least once
        int leftDeleteAttempts = Math.max(1, options.getWriterRetryAttempts());
        while (leftDeleteAttempts > 0) {
            try {
                //do delete
                mapWriter.delete(keys);
                break;
            } catch (Exception exception) {
                if (--leftDeleteAttempts == 0) {
                    throw exception;
                } else {
                    log.warn("Unable to delete keys: {}, will retry after {}ms", keys, options.getWriterRetryInterval(), exception);
                    try {
                        Thread.sleep(options.getWriterRetryInterval());
                    } catch (InterruptedException ignore) {
                    }
                }
            }
        }
    }
}




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