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How to use DbTableCheckExpression class of org.evomaster.client.java.controller.internal.db.constraint package

Best EvoMaster code snippet using org.evomaster.client.java.controller.internal.db.constraint.DbTableCheckExpression

Source:MySQLConstraintExtractor.java

...44                            case MYSQL_CONSTRAINT_TYPE_FOREIGN_KEY:45                                break;46                            case MYSQL_CONSTRAINT_TYPE_CHECK:47                                String constraintName = columns.getString(MYSQL_CONSTRAINT_NAME);48                                DbTableCheckExpression check = getCheckConstraint(connectionToMySQL, tableName, constraintName);49                                constraints.add(check);50                                break;51                            case MYSQL_CONSTRAINT_TYPE_UNIQUE:52                                String uniqueConstraintName = columns.getString(MYSQL_CONSTRAINT_NAME);53                                DbTableUniqueConstraint uniqueConstraint = getUniqueConstraint(connectionToMySQL, tableSchema, tableName, uniqueConstraintName);54                                constraints.add(uniqueConstraint);55                                break;56                            default:57                                cannotHandle("Unknown constraint type " + type);58                        }59                    }60                }61            }62            // handle enum column63            for (ColumnDto column: tableDto.columns){64                if (column.type.equalsIgnoreCase("enum")){65                    DbTableCheckExpression enumConstraint = handleEnum(connectionToMySQL, tableSchema, tableName, column.name);66                    constraints.add(enumConstraint);67                }68            }69        }70        return constraints;71    }72    private DbTableUniqueConstraint getUniqueConstraint(Connection connectionToMySQL, String tableSchema, String tableName, String constraintName) throws SQLException{73        String query = String.format("SELECT %s \n" +74                "   FROM information_schema.KEY_COLUMN_USAGE\n" +75                "   WHERE TABLE_SCHEMA = '%s'\n" +76                "       AND TABLE_NAME = '%s'\n" +77                "       AND CONSTRAINT_NAME='%s';\n", MYSQL_COLUMN_NAME, tableSchema, tableName, constraintName);78        try (Statement stmt = connectionToMySQL.createStatement()) {79            try (ResultSet columns = stmt.executeQuery(query)) {80                List<String> uniqueColumnNames = new ArrayList<>();81                while(columns.next()){82                    uniqueColumnNames.add(columns.getString(MYSQL_COLUMN_NAME));83                }84                if (uniqueColumnNames.isEmpty()) {85                    throw new IllegalStateException("Unexpected missing column names");86                }87                return new DbTableUniqueConstraint(tableName, uniqueColumnNames);88            }89        }90    }91    private DbTableCheckExpression getCheckConstraint(Connection connectionToMySQL, String tableName, String constraintName) throws SQLException{92        String query = String.format("SELECT %s \n" +93                "FROM information_schema.CHECK_CONSTRAINTS\n" +94                "WHERE CONSTRAINT_NAME='%s';\n", MYSQL_CHECK_CLAUSE, constraintName);95        try (Statement stmt = connectionToMySQL.createStatement()) {96            try (ResultSet check = stmt.executeQuery(query)) {97                boolean hasChecks = check.next();98                if (!hasChecks) {99                    throw new IllegalStateException("Unexpected missing check scripts");100                }101                String check_clause = postCheckConstraintHandling(check.getString(MYSQL_CHECK_CLAUSE));102                return new DbTableCheckExpression(tableName, check_clause);103            }104        }105    }106    // Man: Shall I move this into TableCheckExpressionDto e.g., formatCheckExpression107    private String postCheckConstraintHandling(String check_exp){108        return check_exp109                .replaceAll("`", "")110                .replaceAll("_utf8mb4", "") // mysql https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf8mb4.html111                .replaceAll("\\\\'","'");112    }113    private DbTableCheckExpression handleEnum(Connection connectionToMySQL, String schemaName, String tableName, String columnName) throws SQLException{114        String query = String.format("SELECT %s\n" +115                "       FROM information_schema.COLUMNS\n" +116                "       WHERE TABLE_SCHEMA='%s'\n" +117                "           AND TABLE_NAME='%s'\n" +118                "           AND COLUMN_NAME='%s';", MYSQL_ENUM_COLUMN_TYPE, schemaName, tableName, columnName);119        try (Statement stmt = connectionToMySQL.createStatement()) {120            try (ResultSet literals = stmt.executeQuery(query)) {121                boolean hasLiterals = literals.next();122                if (!hasLiterals) {123                    throw new IllegalStateException("Unexpected missing literals of enum");124                }125                String literalsValue = literals.getString(MYSQL_ENUM_COLUMN_TYPE);126                return new DbTableCheckExpression(tableName, String.format(127                        "%s %s", columnName, literalsValue128                ));129            }130        }131    }132}...

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