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• AbstractPushAll.java

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com.redis.spring.batch.writer.operation.AbstractPushAll Maven / Gradle / Ivy

package com.redis.spring.batch.writer.operation;

import java.util.Collection;
import java.util.function.Function;

import org.springframework.batch.item.Chunk;
import org.springframework.util.CollectionUtils;

import io.lettuce.core.RedisFuture;
import io.lettuce.core.api.async.BaseRedisAsyncCommands;
import io.lettuce.core.api.async.RedisListAsyncCommands;

public abstract class AbstractPushAll extends AbstractKeyWriteOperation {

	private final Function> valuesFunction;

	protected AbstractPushAll(Function keyFunction, Function> valuesFunction) {
		super(keyFunction);
		this.valuesFunction = valuesFunction;
	}

	@SuppressWarnings("unchecked")
	@Override
	protected void execute(BaseRedisAsyncCommands commands, T item, K key, Chunk> outputs) {
		Collection values = valuesFunction.apply(item);
		if (!CollectionUtils.isEmpty(values)) {
			RedisListAsyncCommands listCommands = (RedisListAsyncCommands) commands;
			V[] array = (V[]) values.toArray();
			outputs.add(doPush(listCommands, key, array));
		}
	}

	protected abstract RedisFuture