use of java.sql.SQLNonTransientException in project Mycat-Server by MyCATApache.
the class DruidMycatRouteStrategy method routeNormalSqlWithAST.
@Override
public RouteResultset routeNormalSqlWithAST(SchemaConfig schema, String stmt, RouteResultset rrs, String charset, LayerCachePool cachePool) throws SQLNonTransientException {
/**
* 只有mysql时只支持mysql语法
*/
SQLStatementParser parser = null;
if (schema.isNeedSupportMultiDBType()) {
parser = new MycatStatementParser(stmt);
} else {
parser = new MySqlStatementParser(stmt);
}
MycatSchemaStatVisitor visitor = null;
SQLStatement statement;
/**
* 解析出现问题统一抛SQL语法错误
*/
try {
statement = parser.parseStatement();
visitor = new MycatSchemaStatVisitor();
} catch (Exception t) {
LOGGER.error("DruidMycatRouteStrategyError", t);
throw new SQLSyntaxErrorException(t);
}
/**
* 检验unsupported statement
*/
checkUnSupportedStatement(statement);
DruidParser druidParser = DruidParserFactory.create(schema, statement, visitor);
druidParser.parser(schema, rrs, statement, stmt, cachePool, visitor);
DruidShardingParseInfo ctx = druidParser.getCtx();
rrs.setTables(ctx.getTables());
/**
* DruidParser 解析过程中已完成了路由的直接返回
*/
if (rrs.isFinishedRoute()) {
return rrs;
}
/**
* 没有from的select语句或其他
*/
if ((ctx.getTables() == null || ctx.getTables().size() == 0) && (ctx.getTableAliasMap() == null || ctx.getTableAliasMap().isEmpty())) {
return RouterUtil.routeToSingleNode(rrs, schema.getRandomDataNode(), druidParser.getCtx().getSql());
}
if (druidParser.getCtx().getRouteCalculateUnits().size() == 0) {
RouteCalculateUnit routeCalculateUnit = new RouteCalculateUnit();
druidParser.getCtx().addRouteCalculateUnit(routeCalculateUnit);
}
SortedSet<RouteResultsetNode> nodeSet = new TreeSet<RouteResultsetNode>();
for (RouteCalculateUnit unit : druidParser.getCtx().getRouteCalculateUnits()) {
RouteResultset rrsTmp = RouterUtil.tryRouteForTables(schema, druidParser.getCtx(), unit, rrs, isSelect(statement), cachePool);
if (rrsTmp != null) {
for (RouteResultsetNode node : rrsTmp.getNodes()) {
nodeSet.add(node);
}
}
}
RouteResultsetNode[] nodes = new RouteResultsetNode[nodeSet.size()];
int i = 0;
for (RouteResultsetNode aNodeSet : nodeSet) {
nodes[i] = aNodeSet;
if (statement instanceof MySqlInsertStatement && ctx.getTables().size() == 1 && schema.getTables().containsKey(ctx.getTables().get(0))) {
RuleConfig rule = schema.getTables().get(ctx.getTables().get(0)).getRule();
if (rule != null && rule.getRuleAlgorithm() instanceof SlotFunction) {
aNodeSet.setStatement(ParseUtil.changeInsertAddSlot(aNodeSet.getStatement(), aNodeSet.getSlot()));
}
}
i++;
}
rrs.setNodes(nodes);
/**
* subTables="t_order$1-2,t_order3"
*目前分表 1.6 开始支持 幵丏 dataNode 在分表条件下只能配置一个,分表条件下不支持join。
*/
if (rrs.isDistTable()) {
return this.routeDisTable(statement, rrs);
}
return rrs;
}
use of java.sql.SQLNonTransientException in project jdk8u_jdk by JetBrains.
the class SQLInvalidAuthorizationSpecExceptionTests method test13.
/**
* Create SQLInvalidAuthorizationSpecException and validate it is an
* instance of SQLNonTransientException
*/
@Test
public void test13() {
Exception ex = new SQLInvalidAuthorizationSpecException();
assertTrue(ex instanceof SQLNonTransientException);
}
use of java.sql.SQLNonTransientException in project jdk8u_jdk by JetBrains.
the class SQLIntegrityConstraintViolationExceptionTests method test13.
/**
* Create SQLIntegrityConstraintViolationException and validate it is an instance of
* SQLNonTransientException
*/
@Test
public void test13() {
Exception ex = new SQLIntegrityConstraintViolationException();
assertTrue(ex instanceof SQLNonTransientException);
}
use of java.sql.SQLNonTransientException in project jdk8u_jdk by JetBrains.
the class SQLNonTransientExceptionTests method test.
/**
* Create SQLNonTransientException and setting all objects to null
*/
@Test
public void test() {
SQLNonTransientException e = new SQLNonTransientException(null, null, errorCode, null);
assertTrue(e.getMessage() == null && e.getSQLState() == null && e.getCause() == null && e.getErrorCode() == errorCode);
}
use of java.sql.SQLNonTransientException in project jdk8u_jdk by JetBrains.
the class SQLNonTransientExceptionTests method test12.
/**
* Validate that the ordering of the returned Exceptions is correct
* using traditional while loop
*/
@Test
public void test12() {
SQLNonTransientException ex = new SQLNonTransientException("Exception 1", t1);
SQLNonTransientException ex1 = new SQLNonTransientException("Exception 2");
SQLNonTransientException ex2 = new SQLNonTransientException("Exception 3", t2);
ex.setNextException(ex1);
ex.setNextException(ex2);
int num = 0;
SQLException sqe = ex;
while (sqe != null) {
assertTrue(msgs[num++].equals(sqe.getMessage()));
Throwable c = sqe.getCause();
while (c != null) {
assertTrue(msgs[num++].equals(c.getMessage()));
c = c.getCause();
}
sqe = sqe.getNextException();
}
}
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