Examples with FormProfile org.activityinfo.geoadmin.merge2.view.profile.FormProfile used on opensource projects

Example 1 with FormProfile

use of org.activityinfo.geoadmin.merge2.view.profile.FormProfile in project activityinfo by bedatadriven.

the class FormMappingBuilder method buildReferenceMapping.

/**
 * Builds a reference mapping for a given target node.
 *
 * <p>A reference field takes the value of a single {@code ResourceId}, but
 * most of the time we don't have the actual id of the field in the dataset to import:
 * we have to obtain the id by performing a look up against text fields in the
 * </p>
 *
 * @param targetField the reference field to look up
 */
private void buildReferenceMapping(final FormField targetField) {
    // In order to match against the ReferenceField, we need the actual data
    // from the form that is being referenced.
    // 
    // Example: If we have a "Location" field that references the "Province" form class,
    // then we need then names and/or codes of the Province form class in order to lookup the
    // ids, assuming that our source dataset has a "province name" column with the names of the provinces.
    ReferenceType type = (ReferenceType) targetField.getType();
    // Currently this only supports reference fields that reference exactly one form class.
    if (type.getCardinality() == Cardinality.SINGLE && type.getRange().size() == 1) {
        ResourceId referenceFormId = Iterables.getOnlyElement(type.getRange());
        Observable<FormProfile> lookupForm = FormProfile.profile(resourceStore, referenceFormId);
        Observable<FieldMapping> mapping = lookupForm.transform(new Function<FormProfile, FieldMapping>() {

            @Override
            public FieldMapping apply(FormProfile lookupForm) {
                return new ReferenceFieldMapping(targetField, KeyFieldPairSet.matchKeys(source, lookupForm), referenceMatches);
            }
        });
        mappings.add(mapping);
    }
}

Example 2 with FormProfile

use of org.activityinfo.geoadmin.merge2.view.profile.FormProfile in project activityinfo by bedatadriven.

the class KeyFieldPairSet method matchKeys.

/**
 * Constructs a {@code KeyFieldPairSet} from a source and target form by matching columns with similar
 * sets of values.
 */
public static KeyFieldPairSet matchKeys(FormProfile source, FormProfile target) {
    ScoreMatrix scoreMatrix = new FieldScoreMatrix(source.getFields(), target.getFields());
    dumpScoreMatrix(source, target, scoreMatrix);
    MatchGraph matchGraph = new MatchGraph(scoreMatrix);
    matchGraph.build();
    BiMap<FieldProfile, FieldProfile> targetToSource = HashBiMap.create();
    for (int sourceColumnIndex = 0; sourceColumnIndex != scoreMatrix.getRowCount(); ++sourceColumnIndex) {
        int targetColumnIndex = matchGraph.getBestMatchForSource(sourceColumnIndex);
        if (targetColumnIndex != -1) {
            FieldProfile sourceColumn = source.getFields().get(sourceColumnIndex);
            FieldProfile targetColumn = target.getFields().get(targetColumnIndex);
            targetToSource.put(targetColumn, sourceColumn);
            System.out.println("Matching FIELD " + sourceColumn.getLabel() + " => " + targetColumn.getLabel());
        }
    }
    return new KeyFieldPairSet(source, target, targetToSource);
}