use of io.mycat.config.model.TableConfig in project Mycat_plus by coderczp.
the class RuleFunctionSuitTableTest method testPartitionByHashMod.
@Test
public void testPartitionByHashMod() {
PartitionByHashMod partition = new PartitionByHashMod();
// partition = 3;
partition.setCount(3);
Assert.assertEquals(3, partition.getPartitionNum());
RuleConfig rule = new RuleConfig("id", "partition-hash-mod");
rule.setRuleAlgorithm(partition);
TableConfig tableConf = new TableConfig("test", "id", true, false, -1, "dn1,dn2,dn3", null, rule, true, null, false, null, null, null);
int suit1 = partition.suitableFor(tableConf);
Assert.assertEquals(0, suit1);
tableConf.getDataNodes().clear();
tableConf.getDataNodes().addAll(Arrays.asList("dn1", "dn2", "dn3", "dn4"));
int suit2 = partition.suitableFor(tableConf);
Assert.assertEquals(1, suit2);
tableConf.getDataNodes().clear();
tableConf.getDataNodes().addAll(Arrays.asList("dn1", "dn2"));
int suit3 = partition.suitableFor(tableConf);
Assert.assertEquals(-1, suit3);
}
use of io.mycat.config.model.TableConfig in project Mycat-Server by MyCATApache.
the class DruidCreateTableParser method statementParse.
@Override
public void statementParse(SchemaConfig schema, RouteResultset rrs, SQLStatement stmt) throws SQLNonTransientException {
MySqlCreateTableStatement createStmt = (MySqlCreateTableStatement) stmt;
if (createStmt.getQuery() != null) {
String msg = "create table from other table not supported :" + stmt;
LOGGER.warn(msg);
throw new SQLNonTransientException(msg);
}
String tableName = StringUtil.removeBackquote(createStmt.getTableSource().toString().toUpperCase());
if (schema.getTables().containsKey(tableName)) {
TableConfig tableConfig = schema.getTables().get(tableName);
AbstractPartitionAlgorithm algorithm = tableConfig.getRule().getRuleAlgorithm();
if (algorithm instanceof SlotFunction) {
SQLColumnDefinition column = new SQLColumnDefinition();
column.setDataType(new SQLCharacterDataType("int"));
column.setName(new SQLIdentifierExpr("_slot"));
column.setComment(new SQLCharExpr("自动迁移算法slot,禁止修改"));
((SQLCreateTableStatement) stmt).getTableElementList().add(column);
String sql = createStmt.toString();
rrs.setStatement(sql);
ctx.setSql(sql);
}
}
ctx.addTable(tableName);
}
use of io.mycat.config.model.TableConfig in project Mycat-Server by MyCATApache.
the class DruidInsertParser method parserBatchInsert.
/**
* insert into .... select .... 或insert into table() values (),(),....
* @param schema
* @param rrs
* @param insertStmt
* @throws SQLNonTransientException
*/
private void parserBatchInsert(SchemaConfig schema, RouteResultset rrs, String partitionColumn, String tableName, MySqlInsertStatement insertStmt) throws SQLNonTransientException {
// insert into table() values (),(),....
if (insertStmt.getValuesList().size() > 1) {
// 字段列数
int columnNum = insertStmt.getColumns().size();
int shardingColIndex = getShardingColIndex(insertStmt, partitionColumn);
if (shardingColIndex == -1) {
String msg = "bad insert sql (sharding column:" + partitionColumn + " not provided," + insertStmt;
LOGGER.warn(msg);
throw new SQLNonTransientException(msg);
} else {
List<ValuesClause> valueClauseList = insertStmt.getValuesList();
Map<Integer, List<ValuesClause>> nodeValuesMap = new HashMap<Integer, List<ValuesClause>>();
Map<Integer, Integer> slotsMap = new HashMap<>();
TableConfig tableConfig = schema.getTables().get(tableName);
AbstractPartitionAlgorithm algorithm = tableConfig.getRule().getRuleAlgorithm();
for (ValuesClause valueClause : valueClauseList) {
if (valueClause.getValues().size() != columnNum) {
String msg = "bad insert sql columnSize != valueSize:" + columnNum + " != " + valueClause.getValues().size() + "values:" + valueClause;
LOGGER.warn(msg);
throw new SQLNonTransientException(msg);
}
SQLExpr expr = valueClause.getValues().get(shardingColIndex);
String shardingValue = null;
if (expr instanceof SQLIntegerExpr) {
SQLIntegerExpr intExpr = (SQLIntegerExpr) expr;
shardingValue = intExpr.getNumber() + "";
} else if (expr instanceof SQLCharExpr) {
SQLCharExpr charExpr = (SQLCharExpr) expr;
shardingValue = charExpr.getText();
}
Integer nodeIndex = algorithm.calculate(shardingValue);
if (algorithm instanceof SlotFunction) {
slotsMap.put(nodeIndex, ((SlotFunction) algorithm).slotValue());
}
// 没找到插入的分片
if (nodeIndex == null) {
String msg = "can't find any valid datanode :" + tableName + " -> " + partitionColumn + " -> " + shardingValue;
LOGGER.warn(msg);
throw new SQLNonTransientException(msg);
}
if (nodeValuesMap.get(nodeIndex) == null) {
nodeValuesMap.put(nodeIndex, new ArrayList<ValuesClause>());
}
nodeValuesMap.get(nodeIndex).add(valueClause);
}
RouteResultsetNode[] nodes = new RouteResultsetNode[nodeValuesMap.size()];
int count = 0;
for (Map.Entry<Integer, List<ValuesClause>> node : nodeValuesMap.entrySet()) {
Integer nodeIndex = node.getKey();
List<ValuesClause> valuesList = node.getValue();
insertStmt.setValuesList(valuesList);
nodes[count] = new RouteResultsetNode(tableConfig.getDataNodes().get(nodeIndex), rrs.getSqlType(), insertStmt.toString());
if (algorithm instanceof SlotFunction) {
nodes[count].setSlot(slotsMap.get(nodeIndex));
nodes[count].setStatement(ParseUtil.changeInsertAddSlot(nodes[count].getStatement(), nodes[count].getSlot()));
}
nodes[count++].setSource(rrs);
}
rrs.setNodes(nodes);
rrs.setFinishedRoute(true);
}
} else if (insertStmt.getQuery() != null) {
// insert into .... select ....
String msg = "TODO:insert into .... select .... not supported!";
LOGGER.warn(msg);
throw new SQLNonTransientException(msg);
}
}
use of io.mycat.config.model.TableConfig in project Mycat-Server by MyCATApache.
the class DruidSelectParser method isNeedCache.
private boolean isNeedCache(SchemaConfig schema, RouteResultset rrs, MySqlSelectQueryBlock mysqlSelectQuery, Map<String, Map<String, Set<ColumnRoutePair>>> allConditions) {
if (ctx.getTables() == null || ctx.getTables().size() == 0) {
return false;
}
TableConfig tc = schema.getTables().get(ctx.getTables().get(0));
if (tc == null || (ctx.getTables().size() == 1 && tc.isGlobalTable())) {
// || (ctx.getTables().size() == 1) && tc.getRule() == null && tc.getDataNodes().size() == 1
return false;
} else {
// 单表主键查询
if (ctx.getTables().size() == 1) {
String tableName = ctx.getTables().get(0);
String primaryKey = schema.getTables().get(tableName).getPrimaryKey();
// schema.getTables().get(ctx.getTables().get(0)).getParentKey() != null;
if (ctx.getRouteCalculateUnit().getTablesAndConditions().get(tableName) != null && ctx.getRouteCalculateUnit().getTablesAndConditions().get(tableName).get(primaryKey) != null && tc.getDataNodes().size() > 1) {
// 有主键条件
return false;
}
// 全局表不缓存
} else if (RouterUtil.isAllGlobalTable(ctx, schema)) {
return false;
}
return true;
}
}
use of io.mycat.config.model.TableConfig in project Mycat-Server by MyCATApache.
the class BatchInsertSequence method route.
@Override
public void route(SystemConfig sysConfig, SchemaConfig schema, int sqlType, String realSQL, String charset, ServerConnection sc, LayerCachePool cachePool) {
int rs = ServerParse.parse(realSQL);
this.sqltype = rs & 0xff;
this.sysConfig = sysConfig;
this.schema = schema;
this.charset = charset;
this.sc = sc;
this.cachePool = cachePool;
try {
MySqlStatementParser parser = new MySqlStatementParser(realSQL);
SQLStatement statement = parser.parseStatement();
MySqlInsertStatement insert = (MySqlInsertStatement) statement;
if (insert.getValuesList() != null) {
String tableName = StringUtil.getTableName(realSQL).toUpperCase();
TableConfig tableConfig = schema.getTables().get(tableName);
// 获得表的主键字段
String primaryKey = tableConfig.getPrimaryKey();
SQLIdentifierExpr sqlIdentifierExpr = new SQLIdentifierExpr();
sqlIdentifierExpr.setName(primaryKey);
insert.getColumns().add(sqlIdentifierExpr);
if (sequenceHandler == null) {
int seqHandlerType = MycatServer.getInstance().getConfig().getSystem().getSequnceHandlerType();
switch(seqHandlerType) {
case SystemConfig.SEQUENCEHANDLER_MYSQLDB:
sequenceHandler = IncrSequenceMySQLHandler.getInstance();
break;
case SystemConfig.SEQUENCEHANDLER_LOCALFILE:
sequenceHandler = IncrSequencePropHandler.getInstance();
break;
case SystemConfig.SEQUENCEHANDLER_LOCAL_TIME:
sequenceHandler = IncrSequenceTimeHandler.getInstance();
break;
case SystemConfig.SEQUENCEHANDLER_ZK_DISTRIBUTED:
sequenceHandler = DistributedSequenceHandler.getInstance(MycatServer.getInstance().getConfig().getSystem());
break;
case SystemConfig.SEQUENCEHANDLER_ZK_GLOBAL_INCREMENT:
sequenceHandler = IncrSequenceZKHandler.getInstance();
break;
default:
throw new java.lang.IllegalArgumentException("Invalid sequnce handler type " + seqHandlerType);
}
}
for (ValuesClause vc : insert.getValuesList()) {
SQLIntegerExpr sqlIntegerExpr = new SQLIntegerExpr();
long value = sequenceHandler.nextId(tableName.toUpperCase());
// 插入生成的sequence值
sqlIntegerExpr.setNumber(value);
vc.addValue(sqlIntegerExpr);
}
String insertSql = insert.toString();
this.executeSql = insertSql;
}
} catch (Exception e) {
LOGGER.error("BatchInsertSequence.route(......)", e);
}
}
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