Examples with ShardingStrategyConfig org.sagacity.sqltoy.config.model.ShardingStrategyConfig used on opensource projects

Example 16 with ShardingStrategyConfig

use of org.sagacity.sqltoy.config.model.ShardingStrategyConfig in project sagacity-sqltoy by chenrenfei.

the class ShardingUtils method getSharding.

/**
 * @todo 单个对象sharding策略处理,适用于load、save、update、delete单对象操作
 * @param sqlToyContext
 * @param entity
 * @param wrapIdValue
 * @param dataSource
 * @return
 * @throws Exception
 */
public static ShardingModel getSharding(SqlToyContext sqlToyContext, Serializable entity, boolean wrapIdValue, DataSource dataSource) throws Exception {
    ShardingModel shardingModel = new ShardingModel();
    shardingModel.setDataSource(dataSource);
    EntityMeta entityMeta = sqlToyContext.getEntityMeta(entity.getClass());
    shardingModel.setTableName(entityMeta.getTableName());
    // 主键值需要提前按照主键策略赋予(sequence 和assign模式的不会实际执行赋值)
    if (wrapIdValue) {
        assignPK(sqlToyContext, entityMeta, entity);
    }
    ShardingConfig shardingConfig = entityMeta.getShardingConfig();
    if (shardingConfig == null) {
        return shardingModel;
    }
    ShardingStrategy shardingStrategy;
    ShardingStrategyConfig strategyConfig;
    // 分库策略处理
    if (shardingConfig.getShardingDBStrategy() != null) {
        strategyConfig = shardingConfig.getShardingDBStrategy();
        shardingStrategy = sqlToyContext.getShardingStrategy(strategyConfig.getStrategy());
        if (shardingStrategy == null) {
            throw new IllegalArgumentException("POJO 对象:" + entity.getClass().getName() + " Sharding DB Strategy:" + strategyConfig.getStrategy() + " 未定义,请检查!");
        }
        IgnoreCaseLinkedMap<String, Object> valueMap = hashParams(strategyConfig.getAliasNames(), BeanUtil.reflectBeanToAry(entity, strategyConfig.getFields()));
        ShardingDBModel dbModel = shardingStrategy.getShardingDB(sqlToyContext, entity.getClass(), entityMeta.getTableName(), strategyConfig.getDecisionType(), valueMap);
        shardingModel.setDataSourceName(dbModel.getDataSourceName());
        if (dbModel.getDataSource() == null) {
            shardingModel.setDataSource(sqlToyContext.getDataSourceBean(dbModel.getDataSourceName()));
        } else {
            shardingModel.setDataSource(dbModel.getDataSource());
        }
    }
    // 分表策略
    if (shardingConfig.getShardingTableStrategy() != null) {
        strategyConfig = shardingConfig.getShardingTableStrategy();
        shardingStrategy = sqlToyContext.getShardingStrategy(strategyConfig.getStrategy());
        if (shardingStrategy == null) {
            throw new IllegalArgumentException("POJO 对象:" + entity.getClass().getName() + " Sharding Table Strategy:" + strategyConfig.getStrategy() + " 未定义,请检查!");
        }
        IgnoreCaseLinkedMap<String, Object> valueMap = hashParams(strategyConfig.getAliasNames(), BeanUtil.reflectBeanToAry(entity, strategyConfig.getFields()));
        String tableName = shardingStrategy.getShardingTable(sqlToyContext, entity.getClass(), entityMeta.getTableName(), strategyConfig.getDecisionType(), valueMap);
        if (StringUtil.isNotBlank(tableName)) {
            shardingModel.setTableName(tableName);
        }
    }
    return shardingModel;
}

Example 17 with ShardingStrategyConfig

use of org.sagacity.sqltoy.config.model.ShardingStrategyConfig in project sagacity-sqltoy by chenrenfei.

the class ShardingUtils method getShardingTables.

/**
 * @todo 获取sharding对应的表
 * @param sqlToyContext
 * @param tableShardings
 * @param paramNames
 * @param paramValues
 * @return
 */
private static HashMap<String, String> getShardingTables(SqlToyContext sqlToyContext, List<ShardingStrategyConfig> tableShardings, String[] paramNames, Object[] paramValues) {
    if (tableShardings == null || tableShardings.isEmpty()) {
        return null;
    }
    IgnoreCaseLinkedMap<String, Object> valueMap = hashParams(paramNames, paramValues);
    HashMap<String, String> tableMap = new HashMap<String, String>();
    String[] tables;
    String table;
    String shardingTable;
    ShardingStrategy shardingStrategy;
    IgnoreCaseLinkedMap<String, Object> realDataMap = null;
    for (ShardingStrategyConfig shardingModel : tableShardings) {
        shardingStrategy = sqlToyContext.getShardingStrategy(shardingModel.getStrategy());
        if (shardingStrategy != null) {
            tables = shardingModel.getTables();
            if (shardingModel.getFields() != null) {
                realDataMap = new IgnoreCaseLinkedMap<String, Object>();
                for (int i = 0, n = shardingModel.getFields().length; i < n; i++) {
                    realDataMap.put(shardingModel.getAliasNames()[i], valueMap.get(shardingModel.getFields()[i]));
                }
            } else {
                realDataMap = valueMap;
            }
            for (int i = 0; i < tables.length; i++) {
                table = tables[i];
                shardingTable = shardingStrategy.getShardingTable(sqlToyContext, null, table, shardingModel.getDecisionType(), realDataMap);
                if (null != shardingTable && !shardingTable.equalsIgnoreCase(table)) {
                    tableMap.put(table, shardingTable);
                }
            }
        } else {
            logger.error("sharding strategy:{} don't exist,please check sharding config!", shardingModel.getStrategy());
        }
    }
    return tableMap;
}

Example 18 with ShardingStrategyConfig

use of org.sagacity.sqltoy.config.model.ShardingStrategyConfig in project sagacity-sqltoy by chenrenfei.

the class ShardingUtils method groupShardings.

/**
 * @todo 批量sharding策略处理
 * @param sqlToyContext
 * @param entities
 * @param entityMeta
 * @param dataSource
 * @return
 * @throws Exception
 */
public static Collection<ShardingGroupModel> groupShardings(SqlToyContext sqlToyContext, List<?> entities, EntityMeta entityMeta, DataSource dataSource) throws Exception {
    ShardingConfig shardingConfig = entityMeta.getShardingConfig();
    ShardingModel shardingModel = null;
    String entityTable = entityMeta.getTableName();
    // 没有sharding配置，则作为单个分组返回
    if (shardingConfig == null) {
        Collection<ShardingGroupModel> result = new ArrayList<ShardingGroupModel>();
        ShardingGroupModel model = new ShardingGroupModel();
        shardingModel = new ShardingModel();
        shardingModel.setDataSource(dataSource);
        shardingModel.setTableName(entityTable);
        model.setShardingModel(shardingModel);
        model.setEntities(entities);
        result.add(model);
        return result;
    }
    Class entityClass = entityMeta.getEntityClass();
    // 分库
    boolean hasDB = false;
    ShardingStrategy dbStrategy = null;
    List<Object[]> shardingDBValues = null;
    ShardingStrategyConfig dbConfig = shardingConfig.getShardingDBStrategy();
    if (dbConfig != null) {
        hasDB = true;
        dbStrategy = sqlToyContext.getShardingStrategy(dbConfig.getStrategy());
        if (dbStrategy == null) {
            throw new IllegalArgumentException("POJO 对象:" + entityClass.getName() + " Sharding DB Strategy:" + dbConfig.getStrategy() + " 未定义,请检查!");
        }
        shardingDBValues = BeanUtil.reflectBeansToInnerAry(entities, dbConfig.getFields(), null, null);
    }
    // 分表
    boolean hasTable = false;
    ShardingStrategy tableStrategy = null;
    ShardingStrategyConfig tableConfig = shardingConfig.getShardingTableStrategy();
    List<Object[]> shardingTableValues = null;
    if (tableConfig != null) {
        hasTable = true;
        tableStrategy = sqlToyContext.getShardingStrategy(tableConfig.getStrategy());
        if (tableStrategy == null) {
            throw new IllegalArgumentException("POJO 对象:" + entityClass.getName() + " Sharding Table Strategy:" + tableConfig.getStrategy() + " 未定义,请检查!");
        }
        shardingTableValues = BeanUtil.reflectBeansToInnerAry(entities, tableConfig.getFields(), null, null);
    }
    Map<String, ShardingGroupModel> shardingGroupMaps = new HashMap<String, ShardingGroupModel>();
    IgnoreCaseLinkedMap<String, Object> valueMap;
    ShardingDBModel shardingDBModel = null;
    // 数据分组key(dataSourceName+tableName)
    String dataGroupKey;
    String tableName = null;
    String dataSourceName = null;
    for (int i = 0; i < entities.size(); i++) {
        // 分库
        if (hasDB) {
            valueMap = hashParams(dbConfig.getAliasNames(), shardingDBValues.get(i));
            shardingDBModel = dbStrategy.getShardingDB(sqlToyContext, entityClass, entityTable, dbConfig.getDecisionType(), valueMap);
            dataSourceName = shardingDBModel.getDataSourceName();
        }
        // 分表
        if (hasTable) {
            valueMap = hashParams(tableConfig.getAliasNames(), shardingTableValues.get(i));
            tableName = tableStrategy.getShardingTable(sqlToyContext, entityClass, entityTable, tableConfig.getDecisionType(), valueMap);
        }
        // 分组key
        dataGroupKey = dataSourceName + tableName;
        // 归并到相同分组
        if (shardingGroupMaps.containsKey(dataGroupKey)) {
            shardingGroupMaps.get(dataGroupKey).getEntities().add(entities.get(i));
        } else {
            // 不同分组
            ShardingGroupModel groupModel = new ShardingGroupModel();
            groupModel.setKey(dataGroupKey);
            // 创建数据分组集合
            List items = new ArrayList();
            items.add(entities.get(i));
            groupModel.setEntities(items);
            shardingModel = new ShardingModel();
            // 分库,设置分组对应的数据库
            if (hasDB) {
                shardingModel.setDataSourceName(dataSourceName);
                if (shardingDBModel.getDataSource() == null) {
                    shardingModel.setDataSource(sqlToyContext.getDataSourceBean(shardingDBModel.getDataSourceName()));
                } else {
                    shardingModel.setDataSource(shardingDBModel.getDataSource());
                }
            } else {
                shardingModel.setDataSource(dataSource);
            }
            // 分表,设置表名
            if (hasTable && StringUtil.isNotBlank(tableName)) {
                shardingModel.setTableName(tableName);
            }
            groupModel.setShardingModel(shardingModel);
            shardingGroupMaps.put(dataGroupKey, groupModel);
        }
    }
    return shardingGroupMaps.values();
}