Examples with SymbolNode org.activityinfo.model.formula.SymbolNode used on opensource projects

Example 16 with SymbolNode

use of org.activityinfo.model.formula.SymbolNode in project activityinfo by bedatadriven.

the class NodeMatch method forId.

public static NodeMatch forId(String idSymbol, FormClass formClass) {
    NodeMatch match = new NodeMatch();
    match.formClass = formClass;
    match.type = Type.ID;
    match.fieldExpr = new SymbolNode(idSymbol);
    match.joins = Lists.newLinkedList();
    return match;
}

Example 17 with SymbolNode

use of org.activityinfo.model.formula.SymbolNode in project activityinfo by bedatadriven.

the class NodeMatch method joinsTo.

private static List<JoinNode> joinsTo(List<List<FormTree.Node>> partitions, Optional<StatFunction> aggregation) {
    /*
         *  Given a parent: "Site.Location.Territoire.District"
         *  This is represented as a tree of nodes:
         *      District -> Territoire -> Location -> Site
         *      
         *  We want to turn into a list of joins: 
         *      (site field -> form site), 
         *      (location field -> form school),
         *      (field territoire -> form Territoire)
         *      (field district -> form District)
         */
    LinkedList<JoinNode> joins = new LinkedList<>();
    for (int i = 0; i < partitions.size() - 1; i++) {
        // Reference field that functions as a foreign key
        List<FormTree.Node> left = partitions.get(i);
        FormField leftField = left.get(0).getField();
        ResourceId leftFormId = left.get(0).getDefiningFormClass().getId();
        FormulaNode leftFieldExpr = toExpr(left);
        // "RIGHT" side
        // Joining fom left to right using resource ids (primary key)
        List<FormTree.Node> right = partitions.get(i + 1);
        ResourceId rightFormId = right.get(0).getDefiningFormClass().getId();
        if (leftField.getType() instanceof ReferenceType) {
            // Join based on the (left) foreign key ==> (right) primary key
            joins.add(new JoinNode(JoinType.REFERENCE, leftFormId, leftFieldExpr, rightFormId, Optional.<StatFunction>absent()));
        } else if (leftField.getType() instanceof SubFormReferenceType) {
            joins.add(new JoinNode(JoinType.SUBFORM, leftFormId, new SymbolNode(ColumnModel.ID_SYMBOL), rightFormId, aggregation));
        } else {
            throw new IllegalStateException("Invalid field for joining: " + leftField.getType());
        }
    }
    return joins;
}

Example 18 with SymbolNode

use of org.activityinfo.model.formula.SymbolNode in project activityinfo by bedatadriven.

the class NodeMatch method toExpr.

private static FormulaNode toExpr(List<FormTree.Node> partition) {
    Iterator<FormTree.Node> it = partition.iterator();
    FormulaNode expr = new SymbolNode(it.next().getFieldId());
    while (it.hasNext()) {
        expr = new CompoundExpr(expr, new SymbolNode(it.next().getFieldId()));
    }
    return expr;
}

Example 19 with SymbolNode

use of org.activityinfo.model.formula.SymbolNode in project activityinfo by bedatadriven.

the class QueryEvaluatorTest method circularReference.

@Test
public void circularReference() throws Exception {
    final FormClass formClass = new FormClass(ResourceId.valueOf("XYZ"));
    formClass.addField(ResourceId.valueOf("FA")).setCode("A").setLabel("Field A").setType(new CalculatedFieldType("B"));
    formClass.addField(ResourceId.valueOf("FB")).setCode("B").setLabel("Field B").setType(new CalculatedFieldType("A"));
    FormStorageProviderStub catalog = new FormStorageProviderStub();
    catalog.addForm(formClass).withRowCount(10);
    ColumnSetBuilder builder = new ColumnSetBuilder(catalog, new NullFormScanCache(), new NullFormSupervisor());
    FormScanBatch batch = builder.createNewBatch();
    QueryEvaluator evaluator = new QueryEvaluator(FilterLevel.BASE, catalog.getTree(formClass.getId()), batch);
    Slot<ColumnView> a = evaluator.evaluateExpression(new SymbolNode("A"));
    Slot<ColumnView> aPlusOne = evaluator.evaluateExpression(FormulaParser.parse("A+1"));
    builder.execute(batch);
    assertThat(a.get().numRows(), equalTo(10));
    assertThat(a.get().getString(0), nullValue());
    assertThat(aPlusOne.get().getString(0), nullValue());
    assertThat(aPlusOne.get().getDouble(0), equalTo(1d));
}

Example 20 with SymbolNode

use of org.activityinfo.model.formula.SymbolNode in project activityinfo by bedatadriven.

the class EffectiveMapping method getRequiredColumns.

public List<ColumnModel> getRequiredColumns() {
    if (multiValued) {
        List<ColumnModel> columns = new ArrayList<>();
        EnumType enumType = (EnumType) this.formula.getResultType();
        for (EnumItem enumItem : enumType.getValues()) {
            ColumnModel columnModel = new ColumnModel();
            columnModel.setId(getColumnId(enumItem));
            columnModel.setFormula(new CompoundExpr(this.formula.getRootNode(), new SymbolNode(enumItem.getId())));
            columns.add(columnModel);
        }
        return columns;
    }
    if (this.mapping != null && this.formula.isValid()) {
        ColumnModel columnModel = new ColumnModel();
        columnModel.setId(getColumnId());
        columnModel.setFormula(this.formula.getFormula());
        return Collections.singletonList(columnModel);
    }
    return Collections.emptyList();
}