Const.java

/**
 * Copyright 2014 Duan Bingnan
 * 
 * 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.pinus4j.constant;

/**
 * 系统常量.
 * 
 * @author duanbn
 */
public class Const {

    public static final String DEFAULT_CACHE_VERSION         = "1";

    //
    // zookeeper目录相关常量.
    //
    public static final String ZK_ROOT                       = "/pinus";
    /**
     * 每个表的分库分表信息的根目录. 每个分表信息保存在此目录下的文件.
     */
    public static final String ZK_SHARDINGINFO               = ZK_ROOT + "/shardinginfo";
    /**
     * id生成器根目录. 每一个表的id当前id保存在此目录下相关文件.
     */
    public static final String ZK_PRIMARYKEY                 = ZK_ROOT + "/primarykey";
    /**
     * 序列号生成器
     */
    public static final String ZK_SEQUENCE                   = ZK_ROOT + "/sequence";

    /**
     * 分布式锁目录
     */
    public static final String ZK_LOCKS                      = ZK_ROOT + "/locks";

    /**
     * 字符串超过此值则转换为Text
     */
    public static final int    COLUMN_TEXT_LENGTH            = 4000;

    //
    // SQL相关
    //
    /**
     * 查询count的慢日志时间阈值
     */
    public static final int    SLOWQUERY_COUNT               = 2000;
    /**
     * 遍历表慢查询时间阈值
     */
    public static final int    SLOWQUERY_MORE                = 100;
    /**
     * 根据Query对象查询的慢日志时间阈值
     */
    public static final int    SLOWQUERY_QUERY               = 50;
    /**
     * 根据SQL对象查询的慢日志时间阈值
     */
    public static final int    SLOWQUERY_SQL                 = 50;
    /**
     * 根据主键查询的慢日志时间阈值
     */
    public static final int    SLOWQUERY_PK                  = 1;
    /**
     * 根据多主键查询的慢日志时间阈值
     */
    public static final int    SLOWQUERY_PKS                 = 10;

    //
    // 配置文件相关常量.
    //
    /**
     * 默认读取的配置文件名.
     */
    public static final String DEFAULT_CONFIG_FILENAME       = "storage-config.xml";

    public static final String PROP_IDGEN_BATCH              = "db.cluster.generateid.batch";

    public static final String PROP_HASH_ALGO                = "db.cluster.hash.algo";

    /**
     * zookeeper连接地址
     */
    public static final String PROP_ZK_URL                   = "db.cluster.zk";

    //
    // cache prop
    //
    public static final String PROP_DB_CLUSTER_CACHE         = "db.cluster.cache";
    public static final String PROP_DB_CLUSTER_CACHE_PRIMARY = "primary";
    public static final String PROP_DB_CLUSTER_CACHE_SECOND  = "second";
    public static final String PROP_DB_CLUSTER_CACHE_ADDRESS = "address";

    // 数据库连接池连接池
    //    public static final String PROP_MAXACTIVE                     = "maxActive";
    //    public static final String PROP_MINIDLE                       = "minIdle";
    //    public static final String PROP_MAXIDLE                       = "maxIdle";
    //    public static final String PROP_INITIALSIZE                   = "initialSize";
    //    public static final String PROP_REMOVEABANDONED               = "removeAbandoned";
    //    public static final String PROP_REMOVEABANDONEDTIMEOUT        = "removeAbandonedTimeout";
    //    public static final String PROP_MAXWAIT                       = "maxWait";
    //    public static final String PROP_TIMEBETWEENEVICTIONRUNSMILLIS = "timeBetweenEvictionRunsMillis";
    //    public static final String PROP_NUMTESTSPEREVICTIONRUN        = "numTestsPerEvictionRun";
    //    public static final String PROP_MINEVICTABLEIDLETIMEMILLIS    = "minEvictableIdleTimeMillis";

    //
    // 系统变量相关常量.
    //
    /**
     * zookeeper连接信息. -Dstorage.zkhost=
     */
    public static final String SYSTEM_PROPERTY_ZKHOST        = "storage.zkhost";

    //
    // 集群相关常量.
    //
    public static final byte   MSTYPE_MASTER                 = 0;
    public static final byte   MSTYPE_SLAVE                  = 1;

    // 数据类型
    public static final String TRUE                          = "1";
    public static final String FALSE                         = "0";

}