001/*
002 * (C) Copyright 2006-2014 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.nuxeo.ecm.core.redis;
017
018import redis.clients.jedis.Jedis;
019import redis.clients.jedis.exceptions.JedisException;
020import redis.clients.util.Pool;
021
022/**
023 * Execute the jedis statement
024 *
025 * @since 6.0
026 */
027public interface RedisExecutor {
028
029    public static final RedisExecutor NOOP = new RedisExecutor() {
030
031        @Override
032        public <T> T execute(RedisCallable<T> call) throws JedisException {
033            throw new UnsupportedOperationException("No redis executor available");
034        }
035
036        @Override
037        public Pool<Jedis> getPool() {
038            throw new UnsupportedOperationException("No pool available");
039        }
040
041    };
042
043    <T> T execute(RedisCallable<T> call) throws JedisException;
044
045    Pool<Jedis> getPool();
046
047    /**
048     * Start to trace Redis activity only for debug purpose.
049     * @since 8.1
050     */
051    default void startMonitor() {
052    }
053
054    /**
055     * Stop tracing Redis activity.
056     * @since 8.1
057     */
058    default void stopMonitor() {
059    }
060
061}