org.springframework.data.redis.core.script.ScriptUtils Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of spring-data-redis Show documentation

There is a newer version: 3.2.5

/*
 * Copyright 2017-2018 the original author or authors.
 *
 * 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.springframework.data.redis.core.script;

import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;

import org.springframework.dao.NonTransientDataAccessException;
import org.springframework.data.redis.serializer.RedisElementReader;
import org.springframework.data.redis.serializer.RedisSerializer;

/**
 * Utilities for Lua script execution and result deserialization.
 *
 * @author Mark Paluch
 * @author Christoph Strobl
 * @since 2.0
 */
class ScriptUtils {

	private ScriptUtils() {}

	/**
	 * Deserialize {@code result} using {@link RedisSerializer} to the serializer type. Collection types and intermediate
	 * collection elements are deserialized recursivly.
	 *
	 * @param resultSerializer must not be {@literal null}.
	 * @param result must not be {@literal null}.
	 * @return the deserialized result.
	 */
	@SuppressWarnings({ "unchecked" })
	static  T deserializeResult(RedisSerializer resultSerializer, Object result) {

		if (result instanceof byte[]) {
			return resultSerializer.deserialize((byte[]) result);
		}

		if (result instanceof List) {

			List