com.moilioncircle.redis.replicator.cmd.impl.MSetNxParser Maven / Gradle / Ivy

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Redis Replicator implement Redis Replication protocol written in java. It can parse,filter,broadcast the RDB and AOF events in a real time manner. It also can synchronize redis data to your local cache or to database.

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/*
 * Copyright 2016 leon chen
 *
 * 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 com.moilioncircle.redis.replicator.cmd.impl;

import com.moilioncircle.redis.replicator.cmd.Command;
import com.moilioncircle.redis.replicator.cmd.CommandName;
import com.moilioncircle.redis.replicator.cmd.CommandParser;

import java.util.LinkedHashMap;
import java.util.Map;

/**
 * Created by leon on 8/14/16.
 */
public class MSetNxParser implements CommandParser {
    @Override
    public MSetNxCommand parse(CommandName cmdName, Object[] params) {
        if (params == null) return new MSetNxCommand(null);
        int idx = 0;
        Map kv = new LinkedHashMap<>();
        while (idx < params.length) {
            String key = (String) params[idx++];
            String value = idx == params.length ? null : (String) params[idx++];
            kv.put(key, value);
        }
        return new MSetNxCommand(kv);
    }

    public static class MSetNxCommand implements Command {
        public final Map kv;

        public MSetNxCommand(Map kv) {
            this.kv = kv;
        }

        @Override
        public String toString() {
            return "MSetNxCommand{" +
                    "kv=" + kv +
                    '}';
        }

        @Override
        public CommandName name() {
            return CommandName.name("MSETNX");
        }
    }
}