Merge branch 'master' into 3.0.0
Nikita Koksharov
6 years ago
commit
4abd81e49f
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## Redisson standalone node
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## Redisson standalone node
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Redisson offers ability to run as standalone node and participate in distributed computing. Such standalone nodes could be used to run [ExecutorService](./9.-distributed-services#93-executor-service), [ScheduledExecutorService](https://github.com/mrniko/redisson/wiki/9.-distributed-services#94-scheduled-executor-service) tasks or [RemoteService](./9.-distributed-services#91-remote-service) services. It's just a single jar and could be downloaded from [here](https://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&g=org.redisson&a=redisson-all&v=2.3.0&e=jar)
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Redisson offers ability to run as standalone node and participate in distributed computing. Such Nodes are used to run [MapReduce](./9.-distributed-services/#95-distributed-mapreduce-service), [ExecutorService](./9.-distributed-services#93-executor-service), [ScheduledExecutorService](https://github.com/mrniko/redisson/wiki/9.-distributed-services#94-scheduled-executor-service) tasks or [RemoteService](./9.-distributed-services#91-remote-service) services. All tasks are kept in Redis until their execution moment.
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Packaged as a single jar and could be [downloaded](https://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&g=org.redisson&a=redisson-all&v=3.9.0&e=jar).
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[Documentation](https://github.com/mrniko/redisson/wiki/12.-Standalone-node) about Redisson standalone node.
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[Documentation](https://github.com/mrniko/redisson/wiki/12.-Standalone-node) about Redisson standalone node.
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/**
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* Copyright 2018 Nikita Koksharov
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.redisson.client.protocol.decoder;
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import java.util.LinkedHashMap;
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import java.util.List;
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import java.util.Map;
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import org.redisson.client.handler.State;
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import org.redisson.client.protocol.Decoder;
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/**
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*
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* @author Nikita Koksharov
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*
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*/
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public class StreamObjectMapReplayDecoder extends ObjectMapReplayDecoder {
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private Decoder<Object> codec;
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public StreamObjectMapReplayDecoder() {
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}
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public StreamObjectMapReplayDecoder(Decoder<Object> codec) {
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super();
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this.codec = codec;
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}
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@Override
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public Map<Object, Object> decode(List<Object> parts, State state) {
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if (parts.get(0) instanceof Map) {
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Map<Object, Object> result = new LinkedHashMap<Object, Object>(parts.size());
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for (int i = 0; i < parts.size(); i++) {
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result.putAll((Map<? extends Object, ? extends Object>) parts.get(i));
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}
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return result;
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}
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return super.decode(parts, state);
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}
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@Override
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public Decoder<Object> getDecoder(int paramNum, State state) {
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if (codec != null) {
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return codec;
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}
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return null;
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}
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}
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@ -0,0 +1,79 @@
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/**
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* Copyright 2018 Nikita Koksharov
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.redisson.rx;
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import java.util.concurrent.Callable;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.concurrent.atomic.AtomicReference;
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import org.redisson.api.RFuture;
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import io.netty.util.concurrent.Future;
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import io.netty.util.concurrent.FutureListener;
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import io.reactivex.Flowable;
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import io.reactivex.functions.Action;
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import io.reactivex.functions.LongConsumer;
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import io.reactivex.processors.ReplayProcessor;
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/**
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*
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* @author Nikita Koksharov
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*
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*/
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public class ElementsStream {
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public static <V> Flowable<V> takeElements(final Callable<RFuture<V>> callable) {
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final ReplayProcessor<V> p = ReplayProcessor.create();
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return p.doOnRequest(new LongConsumer() {
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@Override
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public void accept(long n) throws Exception {
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final AtomicLong counter = new AtomicLong(n);
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final AtomicReference<RFuture<V>> futureRef = new AtomicReference<RFuture<V>>();
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take(callable, p, counter, futureRef);
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p.doOnCancel(new Action() {
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@Override
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public void run() throws Exception {
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futureRef.get().cancel(true);
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}
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});
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}
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});
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}
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private static <V> void take(final Callable<RFuture<V>> factory, final ReplayProcessor<V> p, final AtomicLong counter, final AtomicReference<RFuture<V>> futureRef) throws Exception {
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RFuture<V> future = factory.call();
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futureRef.set(future);
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future.addListener(new FutureListener<V>() {
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@Override
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public void operationComplete(Future<V> future) throws Exception {
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if (!future.isSuccess()) {
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p.onError(future.cause());
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return;
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}
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p.onNext(future.getNow());
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if (counter.decrementAndGet() == 0) {
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p.onComplete();
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}
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take(factory, p, counter, futureRef);
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}
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});
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}
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}
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