Examples with TransformationMessageImpl eu.esdihumboldt.hale.common.align.transformation.report.impl.TransformationMessageImpl used on opensource projects

Example 6 with TransformationMessageImpl

use of eu.esdihumboldt.hale.common.align.transformation.report.impl.TransformationMessageImpl in project hale by halestudio.

the class TransformationTreeUtil method isEager.

/**
 * Determines if a cell is connected to a source node with eager source
 * parameters.
 *
 * @param cell the cell node
 * @param source the source node
 * @param log the transformation log, may be <code>null</code>
 * @param serviceProvider the service provider
 * @return if the cell contained in the cell node has eager source
 *         parameters connected to the source node
 */
public static boolean isEager(CellNode cell, SourceNode source, TransformationLog log, ServiceProvider serviceProvider) {
    // get all entity names the cell is associated to the source node with
    Set<String> names = cell.getSourceNames(source);
    PropertyFunctionDefinition function = FunctionUtil.getPropertyFunction(cell.getCell().getTransformationIdentifier(), serviceProvider);
    if (function != null) {
        Set<? extends PropertyParameterDefinition> defSources = function.getSource();
        Set<String> eager = new HashSet<String>();
        for (PropertyParameterDefinition sourceDef : defSources) {
            String name = sourceDef.getName();
            if (sourceDef.isEager() && names.contains(name)) {
                eager.add(name);
            }
        }
        if (!eager.isEmpty()) {
            if (log != null && eager.size() != names.size()) {
                log.warn(new TransformationMessageImpl(cell.getCell(), "Source node with a mix of eager and non-eager connections to a cell, treating as eager.", null));
            }
            return true;
        }
    }
    return false;
}

Example 7 with TransformationMessageImpl

use of eu.esdihumboldt.hale.common.align.transformation.report.impl.TransformationMessageImpl in project hale by halestudio.

the class AssignFromCollector method evaluate.

/**
 * @see eu.esdihumboldt.hale.common.align.transformation.function.impl.AbstractSingleTargetPropertyTransformation#evaluate(java.lang.String,
 *      eu.esdihumboldt.hale.common.align.transformation.engine.TransformationEngine,
 *      com.google.common.collect.ListMultimap, java.lang.String,
 *      eu.esdihumboldt.hale.common.align.model.impl.PropertyEntityDefinition,
 *      java.util.Map,
 *      eu.esdihumboldt.hale.common.align.transformation.report.TransformationLog)
 */
@Override
protected Object evaluate(String transformationIdentifier, TransformationEngine engine, ListMultimap<String, PropertyValue> variables, String resultName, PropertyEntityDefinition resultProperty, Map<String, String> executionParameters, TransformationLog log) throws TransformationException, NoResultException {
    // XXX check anchor?
    final Collector mainCollector = (Collector) getExecutionContext().getTransformationContext().get(ContextHelpers.KEY_COLLECTOR);
    if (mainCollector == null) {
        throw new TransformationException("Fatal: No collector has been created yet. Check function priority.");
    }
    final ParameterValue collectorName = getParameterChecked(PARAMETER_COLLECTOR);
    if (collectorName == null || collectorName.isEmpty()) {
        throw new TransformationException("Fatal: No collector name was specified.");
    }
    final Collector collector = mainCollector.getAt(collectorName.getValue().toString());
    if (collector == null) {
        throw new TransformationException(MessageFormat.format("Error retrieving collector \"{0}\"", collectorName.getValue().toString()));
    } else if (collector.values().isEmpty()) {
        log.warn(new TransformationMessageImpl(getCell(), MessageFormat.format("Collector \"{0}\" contains no values. If this is unexpected, check the spelling of the collector name and the priority of the transformation function.", collectorName.getStringRepresentation()), null));
    }
    // Determine where to assign the collected values
    final TypeDefinition resultPropertyType = resultProperty.getDefinition().getPropertyType();
    final PropertyDefinition targetProperty;
    final ResultStrategy resultStrategy;
    if (resultPropertyType.getConstraint(HasValueFlag.class).isEnabled()) {
        // The result property can take values, therefore assign directly to
        // property
        targetProperty = resultProperty.getDefinition();
        // No instance creation is required in this case
        resultStrategy = ResultStrategy.USE_VALUE;
    } else {
        // Find child element/attribute that can be assigned the reference
        targetProperty = Optional.ofNullable(findReferenceChildProperty(resultPropertyType)).orElseThrow(() -> new TransformationException("Fatal: No child property could be found to assign a reference to."));
        resultStrategy = ResultStrategy.BUILD_INSTANCE;
    }
    List<Object> collectedReferences = helper.extractCollectedValues(collector);
    // Process collected values if target property is a reference, otherwise
    // use plain values
    final Function<Object, Object> referenceStrategy;
    if (targetProperty.getConstraint(Reference.class).isReference()) {
        final Reference referenceConstraint = targetProperty.getConstraint(Reference.class);
        // Use the idToReference method to construct the reference
        referenceStrategy = referenceConstraint::idToReference;
    } else {
        referenceStrategy = Function.identity();
    }
    MultiValue result = new MultiValue();
    collectedReferences.forEach(ref -> result.add(resultStrategy.createResult(resultPropertyType, targetProperty, referenceStrategy.apply(ref))));
    return result;
}