Examples with FieldGroup io.atlasmap.v2.FieldGroup used on opensource projects

Example 26 with FieldGroup

use of io.atlasmap.v2.FieldGroup in project atlasmap by atlasmap.

the class DefaultAtlasExpressionProcessor method processExpression.

/**
 * Processes the expression.
 * @param session session
 * @param expression expression
 */
public static void processExpression(DefaultAtlasSession session, String expression) {
    if (expression == null || expression.trim().isEmpty()) {
        return;
    }
    try {
        Map<String, Field> sourceFieldMap = new HashMap<>();
        Field parent = session.head().getSourceField();
        if (parent != null && !AtlasUtil.isEmpty(parent.getDocId()) && !AtlasUtil.isEmpty(parent.getPath())) {
            sourceFieldMap.put(parent.getDocId() + ":" + parent.getPath(), parent);
        }
        // Anonymous FieldGroup is just a wrapping, peel it off
        if (parent instanceof FieldGroup && AtlasUtil.isEmpty(parent.getPath())) {
            FieldGroup parentGroup = FieldGroup.class.cast(parent);
            for (Field child : parentGroup.getField()) {
                if (!(AtlasUtil.isEmpty(child.getDocId()) && AtlasUtil.isEmpty(child.getPath()))) {
                    sourceFieldMap.put(child.getDocId() + ":" + child.getPath(), child);
                }
            }
        }
        Expression parsedExpression = Expression.parse(expression, DefaultAtlasFunctionResolver.getInstance());
        Object answer = parsedExpression.evaluate((path) -> {
            if (path == null || path.isEmpty()) {
                return null;
            }
            try {
                Field f = sourceFieldMap.get(path);
                if (f == null) {
                    return null;
                }
                AtlasModule sourceModule;
                Map<String, AtlasModule> sourceModules = session.getAtlasContext().getSourceModules();
                if (f instanceof ConstantField) {
                    sourceModule = sourceModules.get(AtlasConstants.CONSTANTS_DOCUMENT_ID);
                } else if (f instanceof PropertyField) {
                    sourceModule = sourceModules.get(AtlasConstants.PROPERTIES_SOURCE_DOCUMENT_ID);
                } else {
                    String[] splitted = path.split(":", 2);
                    sourceModule = sourceModules.get(splitted[0]);
                }
                if (sourceModule == null) {
                    throw new ExpressionException(String.format("Module for the path '%s' is not found", path));
                }
                session.head().setSourceField(f);
                sourceModule.readSourceValue(session);
                return session.head().getSourceField();
            } catch (Exception e) {
                throw new ExpressionException(e);
            }
        });
        if (answer instanceof Field) {
            session.head().setSourceField((Field) answer);
        } else {
            Field from = session.head().getSourceField();
            SimpleField to = new SimpleField();
            AtlasModelFactory.copyField(from, to, false);
            to.setValue(answer);
            session.head().setSourceField(to);
        }
    } catch (Exception e) {
        AtlasUtil.addAudit(session, expression, String.format("Expression processing error [%s]: %s", expression, e.getMessage()), AuditStatus.ERROR, null);
        if (LOG.isDebugEnabled()) {
            LOG.debug("", e);
        }
    }
}

Example 27 with FieldGroup

use of io.atlasmap.v2.FieldGroup in project atlasmap by atlasmap.

the class DefaultAtlasFieldActionService method processAction.

private Field processAction(Action action, ActionProcessor processor, FieldType sourceType, Field field) throws AtlasException {
    ActionDetail detail = processor.getActionDetail();
    Multiplicity multiplicity = detail.getMultiplicity() != null ? detail.getMultiplicity() : Multiplicity.ONE_TO_ONE;
    if (multiplicity == Multiplicity.MANY_TO_ONE) {
        return processManyToOne(action, processor, sourceType, field);
    }
    if (multiplicity == Multiplicity.ONE_TO_MANY) {
        if (field instanceof FieldGroup) {
            while (field instanceof FieldGroup) {
                field = ((FieldGroup) field).getField().get(0);
            }
        }
        return processOneToMany(action, processor, sourceType, field);
    }
    if (field instanceof FieldGroup) {
        return processActionForEachCollectionItem(action, processor, sourceType, (FieldGroup) field);
    }
    Object value = field.getValue();
    if (value != null && !isAssignableFieldType(detail.getSourceType(), sourceType)) {
        value = getConversionService().convertType(value, sourceType, detail.getSourceType());
    }
    value = processor.process(action, value);
    field.setFieldType(processor.getActionDetail().getTargetType());
    field.setValue(value);
    return field;
}

Example 28 with FieldGroup

use of io.atlasmap.v2.FieldGroup in project atlasmap by atlasmap.

the class DefaultAtlasFieldActionService method extractNestedListValuesForExpressionAction.

private void extractNestedListValuesForExpressionAction(Field field, List<Object> fieldValues) {
    if (!(field instanceof FieldGroup)) {
        fieldValues.add(field.getValue());
        return;
    }
    FieldGroup fieldGroup = (FieldGroup) field;
    if (fieldGroup == null || fieldGroup.getField() == null || fieldGroup.getField().isEmpty()) {
        return;
    }
    List<Field> fields = null;
    // passed in to Expression.
    while (fieldGroup.getPath() == null || fieldGroup.getPath().isEmpty()) {
        if (fieldGroup.getField().size() == 1 && (fieldGroup.getField().get(0) instanceof FieldGroup)) {
            fieldGroup = (FieldGroup) fieldGroup.getField().get(0);
        } else {
            fields = fieldGroup.getField();
            break;
        }
    }
    if (fields == null) {
        fields = new LinkedList<>();
        fields.add(fieldGroup);
    }
    doExtractValuesForExpressionAction(fields, fieldValues);
}

Example 29 with FieldGroup

use of io.atlasmap.v2.FieldGroup in project atlasmap by atlasmap.

the class DefaultAtlasFieldActionService method processActionForEachCollectionItem.

private FieldGroup processActionForEachCollectionItem(Action action, ActionProcessor processor, FieldType sourceType, FieldGroup fieldGroup) throws AtlasException {
    for (Field subField : fieldGroup.getField()) {
        if (subField instanceof FieldGroup) {
            processActionForEachCollectionItem(action, processor, sourceType, (FieldGroup) subField);
            continue;
        }
        Object value = subField.getValue();
        if (value != null && isAssignableFieldType(processor.getActionDetail().getSourceType(), sourceType)) {
            value = getConversionService().convertType(value, sourceType, processor.getActionDetail().getSourceType());
        }
        value = processor.process(action, value);
        subField.setValue(value);
    }
    return fieldGroup;
}

Example 30 with FieldGroup

use of io.atlasmap.v2.FieldGroup in project atlasmap by atlasmap.

the class DefaultAtlasFieldActionService method doExtractValuesForExpressionAction.

private void doExtractValuesForExpressionAction(List<Field> fields, List<Object> values) {
    for (Field subField : fields) {
        Object subValue = null;
        if (subField instanceof FieldGroup) {
            List<Object> subValues = new ArrayList<>();
            doExtractValuesForExpressionAction(((FieldGroup) subField).getField(), subValues);
            subValue = subValues;
        } else {
            subValue = subField.getValue();
        }
        Integer index = subField.getIndex();
        if (index != null) {
            while (index >= values.size()) {
                values.add(null);
            }
            values.set(index, subValue);
        } else {
            values.add(subValue);
        }
    }
}