Examples with BindParseNode org.apache.phoenix.parse.BindParseNode used on opensource projects

Example 11 with BindParseNode

use of org.apache.phoenix.parse.BindParseNode in project phoenix by apache.

the class CreateTableCompiler method compile.

public MutationPlan compile(CreateTableStatement create) throws SQLException {
    final PhoenixConnection connection = statement.getConnection();
    ColumnResolver resolver = FromCompiler.getResolverForCreation(create, connection);
    PTableType type = create.getTableType();
    PhoenixConnection connectionToBe = connection;
    PTable parentToBe = null;
    ViewType viewTypeToBe = null;
    Scan scan = new Scan();
    final StatementContext context = new StatementContext(statement, resolver, scan, new SequenceManager(statement));
    // TODO: support any statement for a VIEW instead of just a WHERE clause
    ParseNode whereNode = create.getWhereClause();
    String viewStatementToBe = null;
    byte[][] viewColumnConstantsToBe = null;
    BitSet isViewColumnReferencedToBe = null;
    // Check whether column families having local index column family suffix or not if present
    // don't allow creating table.
    // Also validate the default values expressions.
    List<ColumnDef> columnDefs = create.getColumnDefs();
    List<ColumnDef> overideColumnDefs = null;
    PrimaryKeyConstraint pkConstraint = create.getPrimaryKeyConstraint();
    for (int i = 0; i < columnDefs.size(); i++) {
        ColumnDef columnDef = columnDefs.get(i);
        if (columnDef.getColumnDefName().getFamilyName() != null && columnDef.getColumnDefName().getFamilyName().contains(QueryConstants.LOCAL_INDEX_COLUMN_FAMILY_PREFIX)) {
            throw new SQLExceptionInfo.Builder(SQLExceptionCode.UNALLOWED_COLUMN_FAMILY).build().buildException();
        }
        // False means we do not need the default (because it evaluated to null)
        if (!columnDef.validateDefault(context, pkConstraint)) {
            if (overideColumnDefs == null) {
                overideColumnDefs = new ArrayList<>(columnDefs);
            }
            overideColumnDefs.set(i, new ColumnDef(columnDef, null));
        }
    }
    if (overideColumnDefs != null) {
        create = new CreateTableStatement(create, overideColumnDefs);
    }
    final CreateTableStatement finalCreate = create;
    if (type == PTableType.VIEW) {
        TableRef tableRef = resolver.getTables().get(0);
        int nColumns = tableRef.getTable().getColumns().size();
        isViewColumnReferencedToBe = new BitSet(nColumns);
        // Used to track column references in a view
        ExpressionCompiler expressionCompiler = new ColumnTrackingExpressionCompiler(context, isViewColumnReferencedToBe);
        parentToBe = tableRef.getTable();
        viewTypeToBe = parentToBe.getViewType() == ViewType.MAPPED ? ViewType.MAPPED : ViewType.UPDATABLE;
        if (whereNode == null) {
            viewStatementToBe = parentToBe.getViewStatement();
        } else {
            whereNode = StatementNormalizer.normalize(whereNode, resolver);
            if (whereNode.isStateless()) {
                throw new SQLExceptionInfo.Builder(SQLExceptionCode.VIEW_WHERE_IS_CONSTANT).build().buildException();
            }
            // If our parent has a VIEW statement, combine it with this one
            if (parentToBe.getViewStatement() != null) {
                SelectStatement select = new SQLParser(parentToBe.getViewStatement()).parseQuery().combine(whereNode);
                whereNode = select.getWhere();
            }
            Expression where = whereNode.accept(expressionCompiler);
            if (where != null && !LiteralExpression.isTrue(where)) {
                TableName baseTableName = create.getBaseTableName();
                StringBuilder buf = new StringBuilder();
                whereNode.toSQL(resolver, buf);
                viewStatementToBe = QueryUtil.getViewStatement(baseTableName.getSchemaName(), baseTableName.getTableName(), buf.toString());
            }
            if (viewTypeToBe != ViewType.MAPPED) {
                Long scn = connection.getSCN();
                connectionToBe = (scn != null || tableRef.getTable().isTransactional()) ? connection : // clocks being in sync.
                new PhoenixConnection(// on our connection.
                new DelegateConnectionQueryServices(connection.getQueryServices()) {

                    @Override
                    public void addTable(PTable table, long resolvedTime) throws SQLException {
                        connection.addTable(table, resolvedTime);
                    }
                }, connection, tableRef.getTimeStamp() + 1);
                viewColumnConstantsToBe = new byte[nColumns][];
                ViewWhereExpressionVisitor visitor = new ViewWhereExpressionVisitor(parentToBe, viewColumnConstantsToBe);
                where.accept(visitor);
                // If view is not updatable, viewColumnConstants should be empty. We will still
                // inherit our parent viewConstants, but we have no additional ones.
                viewTypeToBe = visitor.isUpdatable() ? ViewType.UPDATABLE : ViewType.READ_ONLY;
                if (viewTypeToBe != ViewType.UPDATABLE) {
                    viewColumnConstantsToBe = null;
                }
            }
        }
    }
    final ViewType viewType = viewTypeToBe;
    final String viewStatement = viewStatementToBe;
    final byte[][] viewColumnConstants = viewColumnConstantsToBe;
    final BitSet isViewColumnReferenced = isViewColumnReferencedToBe;
    List<ParseNode> splitNodes = create.getSplitNodes();
    final byte[][] splits = new byte[splitNodes.size()][];
    ImmutableBytesWritable ptr = context.getTempPtr();
    ExpressionCompiler expressionCompiler = new ExpressionCompiler(context);
    for (int i = 0; i < splits.length; i++) {
        ParseNode node = splitNodes.get(i);
        if (node instanceof BindParseNode) {
            context.getBindManager().addParamMetaData((BindParseNode) node, VARBINARY_DATUM);
        }
        if (node.isStateless()) {
            Expression expression = node.accept(expressionCompiler);
            if (expression.evaluate(null, ptr)) {
                ;
                splits[i] = ByteUtil.copyKeyBytesIfNecessary(ptr);
                continue;
            }
        }
        throw new SQLExceptionInfo.Builder(SQLExceptionCode.SPLIT_POINT_NOT_CONSTANT).setMessage("Node: " + node).build().buildException();
    }
    final MetaDataClient client = new MetaDataClient(connectionToBe);
    final PTable parent = parentToBe;
    return new BaseMutationPlan(context, operation) {

        @Override
        public MutationState execute() throws SQLException {
            try {
                return client.createTable(finalCreate, splits, parent, viewStatement, viewType, viewColumnConstants, isViewColumnReferenced);
            } finally {
                if (client.getConnection() != connection) {
                    client.getConnection().close();
                }
            }
        }

        @Override
        public ExplainPlan getExplainPlan() throws SQLException {
            return new ExplainPlan(Collections.singletonList("CREATE TABLE"));
        }
    };
}