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How to use SqlIsNullCondition class of org.evomaster.dbconstraint.ast package

Best EvoMaster code snippet using org.evomaster.dbconstraint.ast.SqlIsNullCondition

Source:SqlConditionTranslator.java

...12import org.evomaster.dbconstraint.ast.SqlConditionList;13import org.evomaster.dbconstraint.ast.SqlConditionVisitor;14import org.evomaster.dbconstraint.ast.SqlInCondition;15import org.evomaster.dbconstraint.ast.SqlIsNotNullCondition;16import org.evomaster.dbconstraint.ast.SqlIsNullCondition;17import org.evomaster.dbconstraint.ast.SqlLikeCondition;18import org.evomaster.dbconstraint.ast.SqlLiteralValue;19import org.evomaster.dbconstraint.ast.SqlNullLiteralValue;20import org.evomaster.dbconstraint.ast.SqlOrCondition;21import org.evomaster.dbconstraint.ast.SqlSimilarToCondition;22import org.evomaster.dbconstraint.ast.SqlStringLiteralValue;23import java.util.ArrayList;24import java.util.Collections;25import java.util.List;26import java.util.Set;27import java.util.stream.Collectors;28import static org.evomaster.dbconstraint.ast.SqlComparisonOperator.EQUALS_TO;29public class SqlConditionTranslator implements SqlConditionVisitor<TableConstraint, Void> {30    private static final String THIS_METHOD_SHOULD_NOT_BE_INVOKED = "This method should not be directly called";31    public static final String UNEXPECTED_COMPARISON_OPERATOR_MESSAGE = "Unexpected comparison operator ";32    private final TranslationContext translationContext;33    public SqlConditionTranslator(TranslationContext translationContext) {34        this.translationContext = translationContext;35    }36    /**37     * FIXME38     * temporary workaround before major refactoring.39     * Recall that Column.getTable() is not reliable40     */41    private String getTableName(SqlColumn column) {42        String tableName = column.getTableName();43        if (tableName != null) {44            return tableName;45        } else {46            return this.translationContext.getCurrentTableName();47        }48    }49    @Override50    public TableConstraint visit(SqlAndCondition andExpression, Void argument) {51        TableConstraint left = andExpression.getLeftExpr().accept(this, null);52        TableConstraint right = andExpression.getRightExpr().accept(this, null);53        return new AndConstraint(translationContext.getCurrentTableName(), left, right);54    }55    @Override56    public TableConstraint visit(SqlComparisonCondition e, Void argument) {57        SqlCondition left = e.getLeftOperand();58        SqlCondition right = e.getRightOperand();59        if (left instanceof SqlLiteralValue && right instanceof SqlColumn) {60            SqlLiteralValue leftLiteral = (SqlLiteralValue) left;61            SqlColumn rightColumn = (SqlColumn) right;62            return visit(leftLiteral, e, rightColumn);63        } else if (left instanceof SqlColumn && right instanceof SqlLiteralValue) {64            SqlColumn leftColumn = (SqlColumn) left;65            SqlLiteralValue rightLiteral = (SqlLiteralValue) right;66            return visit(leftColumn, e, rightLiteral);67        } else if (left instanceof SqlCondition && right instanceof SqlCondition) {68            TableConstraint leftTableConstraint = e.getLeftOperand().accept(this, null);69            TableConstraint rightTableConstraint = e.getRightOperand().accept(this, null);70            if (e.getSqlComparisonOperator().equals(EQUALS_TO)) {71                return new IffConstraint(translationContext.getCurrentTableName(), leftTableConstraint, rightTableConstraint);72            }73        }74        // TODO This translation should be implemented75        throw new SqlCannotBeTranslatedException(e.toSql() + " cannot be translated yet");76    }77    private TableConstraint visit(SqlColumn leftColumn, SqlComparisonCondition e, SqlLiteralValue rightLiteral) {78        final String tableName = getTableName(leftColumn);79        final String columnName = leftColumn.getColumnName();80        if (rightLiteral instanceof SqlBigIntegerLiteralValue) {81            long value = ((SqlBigIntegerLiteralValue) rightLiteral).getBigInteger().longValue();82            switch (e.getSqlComparisonOperator()) {83                case EQUALS_TO:84                    return new RangeConstraint(tableName, columnName, value, value);85                case GREATER_THAN:86                    return new LowerBoundConstraint(tableName, columnName, value + 1);87                case GREATER_THAN_OR_EQUAL:88                    return new LowerBoundConstraint(tableName, columnName, value);89                case LESS_THAN:90                    return new UpperBoundConstraint(tableName, columnName, value - 1);91                case LESS_THAN_OR_EQUAL:92                    return new UpperBoundConstraint(tableName, columnName, value);93                default:94                    throw new UnsupportedOperationException(UNEXPECTED_COMPARISON_OPERATOR_MESSAGE + e.getSqlComparisonOperator());95            }96        } else if (rightLiteral instanceof SqlStringLiteralValue) {97            SqlStringLiteralValue stringLiteralValue = (SqlStringLiteralValue) rightLiteral;98            if (e.getSqlComparisonOperator().equals(EQUALS_TO)) {99                return new EnumConstraint(tableName, columnName, Collections.singletonList(stringLiteralValue.getStringValue()));100            } else {101                throw new UnsupportedOperationException(UNEXPECTED_COMPARISON_OPERATOR_MESSAGE + e.getSqlComparisonOperator());102            }103        } else {104            throw new UnsupportedOperationException("Unsupported literal " + rightLiteral);105        }106    }107    private TableConstraint visit(SqlLiteralValue leftLiteral, SqlComparisonCondition e, SqlColumn rightColumn) {108        if (leftLiteral instanceof SqlBigIntegerLiteralValue) {109            long value = ((SqlBigIntegerLiteralValue) leftLiteral).getBigInteger().longValue();110            final String tableName = getTableName(rightColumn);111            final String columnName = rightColumn.getColumnName();112            switch (e.getSqlComparisonOperator()) {113                case EQUALS_TO:114                    return new RangeConstraint(tableName, columnName, value, value);115                case GREATER_THAN:116                    return new UpperBoundConstraint(tableName, columnName, value - 1);117                case GREATER_THAN_OR_EQUAL:118                    return new UpperBoundConstraint(tableName, columnName, value);119                case LESS_THAN:120                    return new LowerBoundConstraint(tableName, columnName, value + 1);121                case LESS_THAN_OR_EQUAL:122                    return new LowerBoundConstraint(tableName, columnName, value);123                default:124                    throw new UnsupportedOperationException(UNEXPECTED_COMPARISON_OPERATOR_MESSAGE + e.getSqlComparisonOperator());125            }126        } else {127            throw new UnsupportedOperationException("Unsupported literal " + e.getSqlComparisonOperator());128        }129    }130    @Override131    public TableConstraint visit(SqlInCondition inExpression, Void argument) {132        SqlColumn column = inExpression.getSqlColumn();133        String tableName = getTableName(column);134        String columnName = column.getColumnName();135        SqlConditionList rightItemsList = inExpression.getLiteralList();136        List<String> stringValues = new ArrayList<>();137        for (SqlCondition expressionValue : rightItemsList.getSqlConditionExpressions()) {138            final String stringValue;139            if (expressionValue instanceof SqlStringLiteralValue) {140                stringValue = new StringValue(expressionValue.toSql()).getNotExcapedValue();141            } else {142                stringValue = expressionValue.toSql();143            }144            stringValues.add(stringValue);145        }146        return new EnumConstraint(tableName, columnName, stringValues);147    }148    @Override149    public TableConstraint visit(SqlNullLiteralValue e, Void argument) {150        throw new UnsupportedOperationException(THIS_METHOD_SHOULD_NOT_BE_INVOKED);151    }152    @Override153    public TableConstraint visit(SqlStringLiteralValue e, Void argument) {154        throw new UnsupportedOperationException(THIS_METHOD_SHOULD_NOT_BE_INVOKED);155    }156    @Override157    public TableConstraint visit(SqlConditionList e, Void argument) {158        throw new UnsupportedOperationException(THIS_METHOD_SHOULD_NOT_BE_INVOKED);159    }160    @Override161    public TableConstraint visit(SqlIsNotNullCondition e, Void argument) {162        String tableName = getTableName(e.getColumn());163        String columnName = e.getColumn().getColumnName();164        return new IsNotNullConstraint(tableName, columnName);165    }166    @Override167    public TableConstraint visit(SqlBinaryDataLiteralValue e, Void argument) {168        throw new UnsupportedOperationException(THIS_METHOD_SHOULD_NOT_BE_INVOKED);169    }170    @Override171    public TableConstraint visit(SqlSimilarToCondition e, Void argument) {172        String tableName = getTableName(e.getColumn());173        final String pattern = e.getPattern().getStringValue();174        return new SimilarToConstraint(tableName, e.getColumn().getColumnName(), pattern, translationContext.getDatabaseType());175    }176    @Override177    public TableConstraint visit(SqlIsNullCondition e, Void argument) {178        throw new UnsupportedOperationException(THIS_METHOD_SHOULD_NOT_BE_INVOKED);179    }180    @Override181    public TableConstraint visit(SqlLikeCondition e, Void argument) {182        String tableName = getTableName(e.getColumnName());183        String columnName = e.getColumnName().getColumnName();184        String pattern = e.getPattern().getStringValue();185        return new LikeConstraint(tableName, columnName, pattern, translationContext.getDatabaseType());186    }187    @Override188    public TableConstraint visit(SqlOrCondition e, Void argument) {189        List<TableConstraint> orConstraints = e.getOrConditions().stream().map(c -> c.accept(this, null)).collect(Collectors.toList());190        if (orConstraints.stream().allMatch(c -> c instanceof LikeConstraint)) {191            // all like constraints should have the same tablename, column and database type...

SqlIsNullCondition

Using AI Code Generation

1SqlIsNullCondition sqlIsNullCondition = new SqlIsNullCondition();2sqlIsNullCondition.setColumnName("name");3String sqlConstraint = sqlIsNullCondition.getSqlConstraint();4System.out.println(sqlConstraint);5SqlIsNotNullCondition sqlIsNotNullCondition = new SqlIsNotNullCondition();6sqlIsNotNullCondition.setColumnName("name");7String sqlConstraint = sqlIsNotNullCondition.getSqlConstraint();8System.out.println(sqlConstraint);9SqlBetweenCondition sqlBetweenCondition = new SqlBetweenCondition();10sqlBetweenCondition.setColumnName("age");11sqlBetweenCondition.setLowerBound(20);12sqlBetweenCondition.setUpperBound(30);13String sqlConstraint = sqlBetweenCondition.getSqlConstraint();14System.out.println(sqlConstraint);15SqlNotBetweenCondition sqlNotBetweenCondition = new SqlNotBetweenCondition();16sqlNotBetweenCondition.setColumnName("age");17sqlNotBetweenCondition.setLowerBound(20);18sqlNotBetweenCondition.setUpperBound(30);19String sqlConstraint = sqlNotBetweenCondition.getSqlConstraint();20System.out.println(sqlConstraint);21SqlInCondition sqlInCondition = new SqlInCondition();22sqlInCondition.setColumnName("age");23sqlInCondition.setValues(Arrays.asList(20, 30));24String sqlConstraint = sqlInCondition.getSqlConstraint();25System.out.println(sqlConstraint);

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