/** Will export the entity passed in as the entity version id into a string. */
public String exportEntity(Integer entityVersionId) throws ApplicationException {
if (entityVersionId == null) {
return "";
}
Entity entity = entityDefinitionDao.loadEntity(entityVersionId);
try {
// 1. convert Entity to EntityModel
EntityModel entityModel = ConvertUtil.mapToEntityModel(entity, EntityModel.class);
// 2. set group info to EntityModel
List<EntityAttributeGroup> groups = loadEntityAttributeGroups(entity);
entityModel = ConvertUtil.setGroupInfoToEntityModel(groups, entityModel);
// 3. set validation info to entity attribute
for (EntityAttribute attribute : entity.getAttributes()) {
List<EntityAttributeValidation> validations = loadEntityAttributeValidations(attribute);
ValidationsType validationsType = ConvertUtil.mapToEntityValidations(validations);
// set validations info to attributeType
AttributesType attributesType = entityModel.getAttributes();
if (attributesType != null) {
for (AttributeType attributeType : attributesType.getAttribute()) {
String name = attributeType.getName();
if (attribute.getName().equals(name)) {
attributeType.setValidations(validationsType);
}
}
}
}
// export to xml format
JAXBContext jaxbContext = JAXBContext.newInstance(EntityModel.class);
Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
OutputStream outputStream = new ByteArrayOutputStream();
jaxbMarshaller.marshal(entityModel, outputStream);
return outputStream.toString();
} catch (JAXBException e) {
log.warn("Unable to serialize a Entity into a string: " + e, e);
throw new RuntimeException(e);
}
}
/** Will import the entity definition specified in the relative filename of the parameter. */
public void importEntity(String filename) throws ApplicationException {
if (filename.isEmpty()) {
return;
}
try {
File file = new File(filename);
log.debug("Loading file " + file.getAbsolutePath());
if (!file.isFile() || !file.canRead()) {
log.error("Input file is not available.");
throw new RuntimeException("Input file " + filename + " is not readable.");
}
// Import from file
JAXBContext jaxbContext = JAXBContext.newInstance(EntityModel.class);
Unmarshaller unJaxbMarshaller = jaxbContext.createUnmarshaller();
EntityModel entityModel = (EntityModel) unJaxbMarshaller.unmarshal(new FileInputStream(file));
// convert EntityModel to Entity, EntityAttributeGroups, EntityAttributeValidations
Entity entity =
ConvertUtil.mapToEntityModel(entityModel, getEntityAttributeDatatypes(), Entity.class);
// check existing entity
List<Entity> entities = entityDefinitionDao.findEntitiesByName(entity.getName());
for (Entity en : entities) {
if (en.getVersionId().intValue() == entity.getVersionId().intValue()) {
log.error("Entity definition already exists: " + entity.getName());
throw new RuntimeException(
"Entity definition in the file " + filename + " already exists.");
}
}
// add entity
Entity newEntity = addEntity(entity);
// 2. add entity groups with attribute
List<EntityAttributeGroup> groups =
ConvertUtil.mapToEntityGroup(
entityModel, newEntity, org.openhie.openempi.model.EntityAttributeGroup.class);
for (EntityAttributeGroup group : groups) {
addEntityAttributeGroup(group);
}
// 3. add entity attribute validations
for (AttributeType attributeType : entityModel.getAttributes().getAttribute()) {
List<EntityAttributeValidation> validations =
ConvertUtil.mapToEntityValidations(
attributeType,
newEntity,
org.openhie.openempi.model.EntityAttributeValidation.class);
for (EntityAttributeValidation validation : validations) {
addEntityAttributeValidation(validation);
}
}
return;
} catch (Exception e) {
log.warn("Unable to Unmarshal xml to a EntityModel: " + e, e);
throw new RuntimeException(e);
}
}