org.yx.db.visit.Exchange Maven / Gradle / Ivy

/**
 * Copyright (C) 2016 - 2030 youtongluan.
 *
 * 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.yx.db.visit;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Objects;

import org.yx.db.sql.PojoMeta;
import org.yx.log.Log;
import org.yx.redis.RedisPool;
import org.yx.util.StringUtil;

public class Exchange {

	private List> leftIn = Collections.emptyList();

	private List data;

	public Exchange() {
	}

	public void setLeftIn(List> leftIn) {
		this.leftIn = Objects.requireNonNull(leftIn);
	}

	public List> getLeftIn() {
		return this.leftIn;
	}

	public List getData() {
		return data;
	}

	public void findFromCache(PojoMeta pm) {
		List> origin = this.leftIn;

		if (origin == null || origin.isEmpty() || RedisPool.defaultRedis() == null) {
			return;
		}
		try {
			List redisList = new ArrayList<>(origin.size());
			List> redisConditions = new ArrayList<>(origin.size());

			List> notFound = new ArrayList<>(origin.size());
			for (Map map : origin) {
				if (pm.isOnlyCacheID(map)) {
					redisList.add(pm.getCacheID(map, false));
					redisConditions.add(map);
				} else {
					notFound.add(map);
				}
			}
			if (redisList.isEmpty()) {
				return;
			}
			List redisData = RecordRepository.getMultiValue(pm, redisList);
			if (redisData == null || redisData.isEmpty()) {
				return;
			}
			this.data = new ArrayList<>(redisData.size());
			for (int i = 0; i < redisConditions.size(); i++) {
				Map conditon = redisConditions.get(i);

				if (i < redisData.size() && StringUtil.isNotEmpty(redisData.get(i))) {
					this.data.add(redisData.get(i));
					continue;
				}

				notFound.add(conditon);
			}
			this.leftIn = notFound.isEmpty() ? null : notFound;
		} catch (Exception e) {
			this.data = null;
			Log.printStack("sumk.sql", e);
		}
	}

}