Examples with SQLBooleanExpr com.alibaba.druid.sql.ast.expr.SQLBooleanExpr used on opensource projects

Example 1 with SQLBooleanExpr

use of com.alibaba.druid.sql.ast.expr.SQLBooleanExpr in project druid by alibaba.

the class MySqlMockExecuteHandlerImpl method executeQueryFromDual.

public ResultSet executeQueryFromDual(MockStatementBase statement, SQLSelectQueryBlock query) throws SQLException {
    MockResultSet rs = statement.getConnection().getDriver().createMockResultSet(statement);
    MockResultSetMetaData metaData = rs.getMockMetaData();
    Object[] row = new Object[query.getSelectList().size()];
    for (int i = 0, size = query.getSelectList().size(); i < size; ++i) {
        ColumnMetaData column = new ColumnMetaData();
        SQLSelectItem item = query.getSelectList().get(i);
        SQLExpr expr = item.getExpr();
        if (expr instanceof SQLIntegerExpr) {
            row[i] = ((SQLNumericLiteralExpr) expr).getNumber();
            column.setColumnType(Types.INTEGER);
        } else if (expr instanceof SQLNumberExpr) {
            row[i] = ((SQLNumericLiteralExpr) expr).getNumber();
            column.setColumnType(Types.DECIMAL);
        } else if (expr instanceof SQLCharExpr) {
            row[i] = ((SQLCharExpr) expr).getText();
            column.setColumnType(Types.VARCHAR);
        } else if (expr instanceof SQLNCharExpr) {
            row[i] = ((SQLNCharExpr) expr).getText();
            column.setColumnType(Types.NVARCHAR);
        } else if (expr instanceof SQLBooleanExpr) {
            row[i] = ((SQLBooleanExpr) expr).getValue();
            column.setColumnType(Types.NVARCHAR);
        } else if (expr instanceof SQLNullExpr) {
            row[i] = null;
        } else if (expr instanceof SQLMethodInvokeExpr) {
            SQLMethodInvokeExpr methodInvokeExpr = (SQLMethodInvokeExpr) expr;
            if ("NOW".equalsIgnoreCase(methodInvokeExpr.getMethodName())) {
                row[i] = new Timestamp(System.currentTimeMillis());
            } else {
                throw new SQLException("TODO");
            }
        } else if (expr instanceof SQLVariantRefExpr) {
            SQLVariantRefExpr varExpr = (SQLVariantRefExpr) expr;
            int varIndex = varExpr.getIndex();
            if (statement instanceof MockPreparedStatement) {
                MockPreparedStatement mockPstmt = (MockPreparedStatement) statement;
                row[i] = mockPstmt.getParameters().get(varIndex);
            } else {
                row[i] = null;
            }
        } else {
            row[i] = null;
        }
        metaData.getColumns().add(column);
    }
    rs.getRows().add(row);
    return rs;
}

Example 2 with SQLBooleanExpr

use of com.alibaba.druid.sql.ast.expr.SQLBooleanExpr in project druid by alibaba.

the class ExportParameterVisitorUtils method exportParameter.

public static SQLExpr exportParameter(final List<Object> parameters, final SQLExpr param) {
    Object value = null;
    boolean replace = false;
    if (param instanceof SQLCharExpr) {
        value = ((SQLCharExpr) param).getText();
        replace = true;
    }
    if (param instanceof SQLBooleanExpr) {
        value = ((SQLBooleanExpr) param).getValue();
        replace = true;
    }
    if (param instanceof SQLNumericLiteralExpr) {
        value = ((SQLNumericLiteralExpr) param).getNumber();
        replace = true;
    }
    if (replace) {
        SQLObject parent = param.getParent();
        if (parent != null) {
            List<SQLObject> mergedList = (List<SQLObject>) parent.getAttribute(ParameterizedOutputVisitorUtils.ATTR_MERGED);
            if (mergedList != null) {
                List<Object> mergedListParams = new ArrayList<Object>(mergedList.size() + 1);
                for (int i = 0; i < mergedList.size(); ++i) {
                    SQLObject item = mergedList.get(i);
                    if (item instanceof SQLBinaryOpExpr) {
                        SQLBinaryOpExpr binaryOpItem = (SQLBinaryOpExpr) item;
                        exportParameter(mergedListParams, binaryOpItem.getRight());
                    }
                }
                if (mergedListParams.size() > 0) {
                    mergedListParams.add(0, value);
                    value = mergedListParams;
                }
            }
        }
        parameters.add(value);
        return new SQLVariantRefExpr("?");
    }
    return param;
}

Example 3 with SQLBooleanExpr

use of com.alibaba.druid.sql.ast.expr.SQLBooleanExpr in project druid by alibaba.

the class WallVisitorUtils method getValue.

public static Object getValue(WallVisitor visitor, SQLExpr x) {
    if (x != null && x.getAttributes().containsKey(EVAL_VALUE)) {
        return getValueFromAttributes(visitor, x);
    }
    if (x instanceof SQLBinaryOpExpr) {
        return getValue(visitor, (SQLBinaryOpExpr) x);
    }
    if (x instanceof SQLBooleanExpr) {
        return ((SQLBooleanExpr) x).getValue();
    }
    if (x instanceof SQLNumericLiteralExpr) {
        return ((SQLNumericLiteralExpr) x).getNumber();
    }
    if (x instanceof SQLCharExpr) {
        return ((SQLCharExpr) x).getText();
    }
    if (x instanceof SQLNCharExpr) {
        return ((SQLNCharExpr) x).getText();
    }
    if (x instanceof SQLNotExpr) {
        Object result = getValue(visitor, ((SQLNotExpr) x).getExpr());
        if (result instanceof Boolean) {
            return !((Boolean) result).booleanValue();
        }
    }
    if (x instanceof SQLQueryExpr) {
        if (isSimpleCountTableSource(visitor, ((SQLQueryExpr) x).getSubQuery())) {
            return Integer.valueOf(1);
        }
        if (isSimpleCaseTableSource(visitor, ((SQLQueryExpr) x).getSubQuery())) {
            SQLSelectQueryBlock queryBlock = (SQLSelectQueryBlock) ((SQLQueryExpr) x).getSubQuery().getQuery();
            SQLCaseExpr caseExpr = (SQLCaseExpr) queryBlock.getSelectList().get(0).getExpr();
            Object result = getValue(caseExpr);
            if (visitor != null && !visitor.getConfig().isCaseConditionConstAllow()) {
                boolean leftIsName = false;
                if (x.getParent() instanceof SQLBinaryOpExpr) {
                    SQLExpr left = ((SQLBinaryOpExpr) x.getParent()).getLeft();
                    if (left instanceof SQLName) {
                        leftIsName = true;
                    }
                }
                if (!leftIsName && result != null) {
                    addViolation(visitor, ErrorCode.CONST_CASE_CONDITION, "const case condition", caseExpr);
                }
            }
            return result;
        }
    }
    String dbType = null;
    if (visitor != null) {
        dbType = visitor.getDbType();
    }
    if (//
    x instanceof SQLMethodInvokeExpr || //
    x instanceof SQLBetweenExpr || //
    x instanceof SQLInListExpr || //
    x instanceof SQLUnaryExpr) {
        return eval(visitor, dbType, x, Collections.emptyList());
    }
    if (x instanceof SQLCaseExpr) {
        if (visitor != null && !visitor.getConfig().isCaseConditionConstAllow()) {
            SQLCaseExpr caseExpr = (SQLCaseExpr) x;
            boolean leftIsName = false;
            if (caseExpr.getParent() instanceof SQLBinaryOpExpr) {
                SQLExpr left = ((SQLBinaryOpExpr) caseExpr.getParent()).getLeft();
                if (left instanceof SQLName) {
                    leftIsName = true;
                }
            }
            if (!leftIsName && caseExpr.getValueExpr() == null && caseExpr.getItems().size() > 0) {
                SQLCaseExpr.Item item = caseExpr.getItems().get(0);
                Object conditionVal = getValue(visitor, item.getConditionExpr());
                Object itemVal = getValue(visitor, item.getValueExpr());
                if (conditionVal instanceof Boolean && itemVal != null) {
                    addViolation(visitor, ErrorCode.CONST_CASE_CONDITION, "const case condition", caseExpr);
                }
            }
        }
        return eval(visitor, dbType, x, Collections.emptyList());
    }
    return null;
}

Example 4 with SQLBooleanExpr

use of com.alibaba.druid.sql.ast.expr.SQLBooleanExpr in project druid by alibaba.

the class WallVisitorUtils method isSimpleConstExpr.

private static boolean isSimpleConstExpr(SQLExpr sqlExpr) {
    List<SQLExpr> parts = getParts(sqlExpr);
    if (parts.isEmpty()) {
        return false;
    }
    for (SQLExpr part : parts) {
        if (isFirst(part)) {
            Object evalValue = part.getAttribute(EVAL_VALUE);
            if (evalValue == null) {
                if (part instanceof SQLBooleanExpr) {
                    evalValue = ((SQLBooleanExpr) part).getValue();
                } else if (part instanceof SQLNumericLiteralExpr) {
                    evalValue = ((SQLNumericLiteralExpr) part).getNumber();
                } else if (part instanceof SQLCharExpr) {
                    evalValue = ((SQLCharExpr) part).getText();
                } else if (part instanceof SQLNCharExpr) {
                    evalValue = ((SQLNCharExpr) part).getText();
                }
            }
            Boolean result = SQLEvalVisitorUtils.castToBoolean(evalValue);
            if (result != null && result) {
                return true;
            }
        }
        boolean isSimpleConstExpr = false;
        if (part == sqlExpr || part instanceof SQLLiteralExpr) {
            isSimpleConstExpr = true;
        } else if (part instanceof SQLBinaryOpExpr) {
            SQLBinaryOpExpr binaryOpExpr = (SQLBinaryOpExpr) part;
            if (binaryOpExpr.getOperator() == SQLBinaryOperator.Equality || binaryOpExpr.getOperator() == SQLBinaryOperator.NotEqual || binaryOpExpr.getOperator() == SQLBinaryOperator.GreaterThan) {
                if (binaryOpExpr.getLeft() instanceof SQLIntegerExpr && binaryOpExpr.getRight() instanceof SQLIntegerExpr) {
                    isSimpleConstExpr = true;
                }
            }
        }
        if (!isSimpleConstExpr) {
            return false;
        }
    }
    return true;
}

Example 5 with SQLBooleanExpr

use of com.alibaba.druid.sql.ast.expr.SQLBooleanExpr in project druid by alibaba.

the class EqualTest_boolean method test_exits.

public void test_exits() throws Exception {
    String sql = "true";
    String sql_c = "false";
    SQLBooleanExpr exprA, exprB, exprC;
    {
        SQLExprParser parser = new MySqlExprParser(sql);
        exprA = (SQLBooleanExpr) parser.expr();
    }
    {
        SQLExprParser parser = new MySqlExprParser(sql);
        exprB = (SQLBooleanExpr) parser.expr();
    }
    {
        SQLExprParser parser = new MySqlExprParser(sql_c);
        exprC = (SQLBooleanExpr) parser.expr();
    }
    Assert.assertEquals(exprA, exprB);
    Assert.assertNotEquals(exprA, exprC);
    Assert.assertTrue(exprA.equals(exprA));
    Assert.assertFalse(exprA.equals(new Object()));
    Assert.assertEquals(exprA.hashCode(), exprB.hashCode());
    Assert.assertEquals(new SQLBooleanExpr(), new SQLBooleanExpr());
    Assert.assertEquals(new SQLBooleanExpr().hashCode(), new SQLBooleanExpr().hashCode());
}