Examples with SQLRequest io.mycat.sqlhandler.SQLRequest used on opensource projects

Example 1 with SQLRequest

use of io.mycat.sqlhandler.SQLRequest in project Mycat2 by MyCATApache.

the class CreateTableSQLHandler method onExecute.

@Override
protected Future<Void> onExecute(SQLRequest<MySqlCreateTableStatement> request, MycatDataContext dataContext, Response response) {
    LockService lockService = MetaClusterCurrent.wrapper(LockService.class);
    return lockService.lock(DDL_LOCK, () -> {
        try {
            Map hint = Optional.ofNullable(request.getAst().getHeadHintsDirect()).map(i -> i.get(0)).map(i -> i.getText()).filter(i -> {
                i = i.replaceAll(" ", "");
                return i.contains("+mycat:createTable{");
            }).map(i -> i.substring(i.indexOf("{"))).map(i -> JsonUtil.from(i, Map.class)).orElse(null);
            MySqlCreateTableStatement ast = request.getAst();
            String schemaName = ast.getSchema() == null ? dataContext.getDefaultSchema() : SQLUtils.normalize(ast.getSchema());
            String tableName = ast.getTableName() == null ? null : SQLUtils.normalize(ast.getTableName());
            if (ast.getSchema() == null) {
                ast.setSchema(schemaName);
            }
            if (tableName == null) {
                return response.sendError(new MycatException("CreateTableSQL need tableName"));
            }
            if (schemaName == null) {
                return response.sendError("No database selected", 1046);
            }
            createTable(hint, schemaName, tableName, ast);
            return response.sendOk();
        } catch (Throwable throwable) {
            return Future.failedFuture(throwable);
        }
    });
}

Example 2 with SQLRequest

use of io.mycat.sqlhandler.SQLRequest in project Mycat2 by MyCATApache.

the class SQLCreateProcedureHandler method onExecute.

@Override
@SneakyThrows
protected Future<Void> onExecute(SQLRequest<SQLCreateProcedureStatement> request, MycatDataContext dataContext, Response response) {
    SQLCreateProcedureStatement ast = request.getAst();
    if (ast.getName() instanceof SQLIdentifierExpr) {
        String defaultSchema = dataContext.getDefaultSchema();
        if (defaultSchema != null) {
            ast.setName(new SQLPropertyExpr(defaultSchema, ((SQLIdentifierExpr) ast.getName()).getName()));
        }
    }
    if (!(ast.getName() instanceof SQLPropertyExpr)) {
        throw new IllegalArgumentException("unknown schema:");
    }
    SQLPropertyExpr pNameExpr = (SQLPropertyExpr) ast.getName();
    String schemaName = SQLUtils.normalize(pNameExpr.getOwnerName().toLowerCase());
    String pName = SQLUtils.normalize(pNameExpr.getName().toLowerCase());
    List<SQLParameter> sqlParameters = Optional.ofNullable(ast.getParameters()).orElse(Collections.emptyList());
    Map<SQLParameter.ParameterType, List<SQLParameter>> parameterTypeListMap = sqlParameters.stream().collect(Collectors.groupingBy(k -> k.getParamType()));
    SQLBlockStatement block = (SQLBlockStatement) ast.getBlock();
    if (dataContext.getDefaultSchema() != null) {
        block.accept(new MySqlASTVisitorAdapter() {

            @Override
            public void endVisit(SQLExprTableSource x) {
                resolveSQLExprTableSource(x, dataContext);
            }
        });
    }
    Map<String, Collection<String>> collect = TableCollector.collect(dataContext.getDefaultSchema(), block);
    int resultSetCount = getResultSetCount(block);
    List<TableHandler> tableHandlers = getTableHandlers(block);
    MetadataManager metadataManager = MetaClusterCurrent.wrapper(MetadataManager.class);
    NormalProcedureConfig normalProcedureConfig = new NormalProcedureConfig();
    normalProcedureConfig.setCreateProcedureSQL(ast.toString());
    NormalBackEndProcedureInfoConfig normalBackEndProcedureInfoConfig = new NormalBackEndProcedureInfoConfig();
    normalBackEndProcedureInfoConfig.setProcedureName(pName);
    normalBackEndProcedureInfoConfig.setSchemaName(schemaName);
    normalBackEndProcedureInfoConfig.setTargetName(MetadataManager.getPrototype());
    normalProcedureConfig.setLocality(normalBackEndProcedureInfoConfig);
    try (MycatRouterConfigOps ops = ConfigUpdater.getOps()) {
        ops.addProcedure(schemaName, pName, normalProcedureConfig);
        ops.commit();
    }
    JdbcConnectionManager jdbcConnectionManager = MetaClusterCurrent.wrapper(JdbcConnectionManager.class);
    try (DefaultConnection connection = jdbcConnectionManager.getConnection(MetadataManager.getPrototype())) {
        connection.executeUpdate(ast.toString(), false);
    }
    return response.sendOk();
}