Fixed - RKeysReactive.getKeysByPattern() returns wrong result. #3648
Nikita Koksharov
4 years ago
parent
72332bcd20
commit
f85a7b434b
@ -0,0 +1,104 @@
|
||||
/**
|
||||
* Copyright (c) 2013-2021 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.reactive;
|
||||
|
||||
import org.redisson.ScanResult;
|
||||
import org.redisson.api.RFuture;
|
||||
import org.redisson.client.RedisClient;
|
||||
import reactor.core.publisher.FluxSink;
|
||||
|
||||
import java.util.concurrent.atomic.AtomicLong;
|
||||
import java.util.function.LongConsumer;
|
||||
|
||||
/**
|
||||
*
|
||||
* @author Nikita Koksharov
|
||||
*
|
||||
*/
|
||||
public abstract class IteratorConsumer<V> implements LongConsumer {
|
||||
|
||||
private final FluxSink<V> emitter;
|
||||
|
||||
private long nextIterPos;
|
||||
private RedisClient client;
|
||||
private AtomicLong elementsRead = new AtomicLong();
|
||||
|
||||
private boolean finished;
|
||||
private volatile boolean completed;
|
||||
private AtomicLong readAmount = new AtomicLong();
|
||||
|
||||
public IteratorConsumer(FluxSink<V> emitter) {
|
||||
this.emitter = emitter;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void accept(long value) {
|
||||
readAmount.addAndGet(value);
|
||||
if (completed || elementsRead.get() == 0) {
|
||||
nextValues(emitter);
|
||||
completed = false;
|
||||
}
|
||||
}
|
||||
|
||||
protected void nextValues(FluxSink<V> emitter) {
|
||||
scanIterator(client, nextIterPos).onComplete((res, e) -> {
|
||||
if (e != null) {
|
||||
emitter.error(e);
|
||||
return;
|
||||
}
|
||||
|
||||
if (finished) {
|
||||
client = null;
|
||||
nextIterPos = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
client = res.getRedisClient();
|
||||
nextIterPos = res.getPos();
|
||||
|
||||
for (Object val : res.getValues()) {
|
||||
Object v = transformValue(val);
|
||||
emitter.next((V) v);
|
||||
elementsRead.incrementAndGet();
|
||||
}
|
||||
|
||||
if (elementsRead.get() >= readAmount.get()) {
|
||||
emitter.complete();
|
||||
elementsRead.set(0);
|
||||
completed = true;
|
||||
return;
|
||||
}
|
||||
if (res.getPos() == 0 && !tryAgain()) {
|
||||
finished = true;
|
||||
emitter.complete();
|
||||
}
|
||||
|
||||
if (finished || completed) {
|
||||
return;
|
||||
}
|
||||
nextValues(emitter);
|
||||
});
|
||||
}
|
||||
|
||||
protected Object transformValue(Object value) {
|
||||
return value;
|
||||
}
|
||||
|
||||
protected abstract boolean tryAgain();
|
||||
|
||||
protected abstract RFuture<ScanResult<Object>> scanIterator(RedisClient client, long nextIterPos);
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue