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

Example 21 with FieldType

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

the class TargetValueConverter method convert.

public Object convert(AtlasInternalSession session, LookupTable lookupTable, Field sourceField, Object parentObject, Field targetField) throws AtlasException {
    FieldType sourceType = sourceField.getFieldType();
    Object sourceValue = sourceField.getValue();
    Object targetValue = null;
    FieldType targetType = targetField.getFieldType();
    if (LOG.isDebugEnabled()) {
        LOG.debug("processTargetMapping iPath=" + sourceField.getPath() + " iV=" + sourceValue + " iT=" + sourceType + " oPath=" + targetField.getPath() + " docId: " + targetField.getDocId());
    }
    if (sourceValue == null) {
        // TODO: Finish targetValue = null processing
        AtlasUtil.addAudit(session, targetField.getDocId(), String.format("Null sourceValue for targetDocId=%s, targetPath=%s", targetField.getDocId(), targetField.getPath()), targetField.getPath(), AuditStatus.WARN, sourceValue != null ? sourceValue.toString() : null);
        return null;
    }
    String targetClassName = (targetField instanceof JavaField) ? ((JavaField) targetField).getClassName() : null;
    targetClassName = (targetField instanceof JavaEnumField) ? ((JavaEnumField) targetField).getClassName() : targetClassName;
    if (targetType == null || targetClassName == null) {
        try {
            Method setter = resolveTargetSetMethod(parentObject, targetField, null);
            if (setter != null && setter.getParameterCount() == 1) {
                if (targetField instanceof JavaField) {
                    ((JavaField) targetField).setClassName(setter.getParameterTypes()[0].getName());
                } else if (targetField instanceof JavaEnumField) {
                    ((JavaEnumField) targetField).setClassName(setter.getParameterTypes()[0].getName());
                }
                targetType = conversionService.fieldTypeFromClass(setter.getParameterTypes()[0]);
                targetField.setFieldType(targetType);
                if (LOG.isTraceEnabled()) {
                    LOG.trace("Auto-detected targetType as {} for class={} path={}", targetType, parentObject.toString(), targetField.getPath());
                }
            }
        } catch (Exception e) {
            LOG.debug("Unable to auto-detect targetType for class={} path={}", parentObject.toString(), targetField.getPath());
        }
    }
    if (sourceField instanceof JavaEnumField || targetField instanceof JavaEnumField) {
        if (!(sourceField instanceof JavaEnumField) || !(targetField instanceof JavaEnumField)) {
            AtlasUtil.addAudit(session, targetField.getDocId(), String.format("Value conversion between enum fields and non-enum fields is not yet supported: sourceType=%s targetType=%s targetPath=%s msg=%s", sourceType, targetType, targetField.getPath()), targetField.getPath(), AuditStatus.ERROR, sourceValue != null ? sourceValue.toString() : null);
        }
        return populateEnumValue(session, lookupTable, (JavaEnumField) sourceField, (JavaEnumField) targetField);
    }
    Class<?> targetClazz = null;
    if (targetClassName == null) {
        if (targetType != null) {
            targetClazz = conversionService.classFromFieldType(targetType);
        } else {
            AtlasUtil.addAudit(session, targetField.getDocId(), String.format("Target field doesn't have fieldType nor className: automatic conversion won't work: targetPath=%s", targetField.getPath()), targetField.getPath(), AuditStatus.WARN, sourceValue != null ? sourceValue.toString() : null);
        }
    } else if (conversionService.isPrimitive(targetClassName)) {
        targetClazz = conversionService.boxOrUnboxPrimitive(targetClassName);
    } else {
        try {
            targetClazz = classLoader.loadClass(targetClassName);
        } catch (ClassNotFoundException e) {
            AtlasUtil.addAudit(session, targetField.getDocId(), String.format("Target field class '%s' was not found: sourceType=%s targetType=%s targetPath=%s msg=%s", ((JavaField) targetField).getClassName(), sourceType, targetType, targetField.getPath(), e.getMessage()), targetField.getPath(), AuditStatus.ERROR, targetValue != null ? targetValue.toString() : null);
            return null;
        }
    }
    if (targetClazz != null) {
        targetValue = conversionService.convertType(sourceValue, null, targetClazz, null);
    } else {
        targetValue = sourceValue;
    }
    AtlasFieldActionService fieldActionService = session.getAtlasContext().getContextFactory().getFieldActionService();
    try {
        targetValue = fieldActionService.processActions(targetField.getActions(), targetValue, targetType);
        if (targetValue != null) {
            if (targetClazz != null) {
                targetValue = conversionService.convertType(targetValue, null, targetClazz, null);
            } else {
                FieldType conversionInputType = conversionService.fieldTypeFromClass(targetValue.getClass());
                targetValue = conversionService.convertType(targetValue, conversionInputType, targetType);
            }
        }
    } catch (AtlasConversionException e) {
        AtlasUtil.addAudit(session, targetField.getDocId(), String.format("Unable to auto-convert for sourceType=%s targetType=%s targetPath=%s msg=%s", sourceType, targetType, targetField.getPath(), e.getMessage()), targetField.getPath(), AuditStatus.ERROR, targetValue != null ? targetValue.toString() : null);
        return null;
    }
    return targetValue;
}