org.redisson.mapreduce.MapReduceExecutor Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of redisson-all Show documentation
Show all versions of redisson-all Show documentation
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
The newest version!
/**
* 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.mapreduce;
import org.redisson.api.*;
import org.redisson.api.mapreduce.RCollator;
import org.redisson.api.mapreduce.RMapReduceExecutor;
import org.redisson.api.mapreduce.RReducer;
import org.redisson.client.codec.Codec;
import org.redisson.command.CommandAsyncExecutor;
import org.redisson.misc.CompletableFutureWrapper;
import java.lang.reflect.Modifier;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
/**
*
* @author Nikita Koksharov
*
* @param mapper type
* @param input value type
* @param output key type
* @param output value type
*/
abstract class MapReduceExecutor implements RMapReduceExecutor {
private final RedissonClient redisson;
private final RExecutorService executorService;
final String resultMapName;
final Codec objectCodec;
final String objectName;
final Class> objectClass;
final CommandAsyncExecutor commandExecutor;
RReducer reducer;
M mapper;
long timeout;
MapReduceExecutor(RObject object, RedissonClient redisson, CommandAsyncExecutor commandExecutor) {
this.objectName = object.getName();
this.objectCodec = object.getCodec();
this.objectClass = object.getClass();
this.redisson = redisson;
UUID id = UUID.randomUUID();
this.resultMapName = object.getName() + ":result:" + id;
this.executorService = redisson.getExecutorService(RExecutorService.MAPREDUCE_NAME);
this.commandExecutor = commandExecutor;
}
protected void check(Object task) {
if (task == null) {
throw new NullPointerException("Task is not defined");
}
if (task.getClass().isAnonymousClass()) {
throw new IllegalArgumentException("Task can't be created using anonymous class");
}
if (task.getClass().isMemberClass()
&& !Modifier.isStatic(task.getClass().getModifiers())) {
throw new IllegalArgumentException("Task class is an inner class and it should be static");
}
}
@Override
public Map execute() {
return commandExecutor.get(executeAsync());
}
@Override
public RFuture
© 2015 - 2024 Weber Informatics LLC | Privacy Policy