@Override
public AtlasVertex preCreate(AtlasStructDef structDef) throws AtlasBaseException {
if (LOG.isDebugEnabled()) {
LOG.debug("==> AtlasStructDefStoreV1.preCreate({})", structDef);
}
AtlasType type = typeRegistry.getType(structDef.getName());
if (type.getTypeCategory() != AtlasType.TypeCategory.STRUCT) {
throw new AtlasBaseException(
AtlasErrorCode.TYPE_MATCH_FAILED, structDef.getName(), TypeCategory.STRUCT.name());
}
AtlasVertex ret = typeDefStore.findTypeVertexByName(structDef.getName());
if (ret != null) {
throw new AtlasBaseException(AtlasErrorCode.TYPE_ALREADY_EXISTS, structDef.getName());
}
ret = typeDefStore.createTypeVertex(structDef);
AtlasStructDefStoreV1.updateVertexPreCreate(
structDef, (AtlasStructType) type, ret, typeDefStore);
if (LOG.isDebugEnabled()) {
LOG.debug("<== AtlasStructDefStoreV1.preCreate({}): {}", structDef, ret);
}
return ret;
}
@Override
public AtlasStructDef updateByGuid(String guid, AtlasStructDef structDef)
throws AtlasBaseException {
if (LOG.isDebugEnabled()) {
LOG.debug("==> AtlasStructDefStoreV1.updateByGuid({})", guid);
}
AtlasType type = typeRegistry.getTypeByGuid(guid);
if (type.getTypeCategory() != AtlasType.TypeCategory.STRUCT) {
throw new AtlasBaseException(
AtlasErrorCode.TYPE_MATCH_FAILED, structDef.getName(), TypeCategory.STRUCT.name());
}
AtlasVertex vertex = typeDefStore.findTypeVertexByGuidAndCategory(guid, TypeCategory.STRUCT);
if (vertex == null) {
throw new AtlasBaseException(AtlasErrorCode.TYPE_GUID_NOT_FOUND, guid);
}
AtlasStructDefStoreV1.updateVertexPreUpdate(
structDef, (AtlasStructType) type, vertex, typeDefStore);
AtlasStructDefStoreV1.updateVertexAddReferences(structDef, vertex, typeDefStore);
AtlasStructDef ret = toStructDef(vertex);
if (LOG.isDebugEnabled()) {
LOG.debug("<== AtlasStructDefStoreV1.updateByGuid({}): {}", guid, ret);
}
return ret;
}
private static String toJsonFromAttributeDef(
AtlasAttributeDef attributeDef, AtlasStructType structType) {
boolean isForeignKey = structType.isForeignKeyAttribute(attributeDef.getName());
boolean isMappedFromRef = structType.isMappedFromRefAttribute(attributeDef.getName());
String reverseAttribName = null;
if (isForeignKey) { // check if the referenced entity has foreignKeyRef to this attribute
AtlasType attribType = structType.getAttributeType(attributeDef.getName());
if (attribType.getTypeCategory() == AtlasType.TypeCategory.ARRAY) {
attribType = ((AtlasArrayType) attribType).getElementType();
}
if (attribType.getTypeCategory() == AtlasType.TypeCategory.ENTITY) {
reverseAttribName =
((AtlasStructType) attribType)
.getMappedFromRefAttribute(structType.getTypeName(), attributeDef.getName());
}
}
boolean isComposite =
isMappedFromRef || (isForeignKey && StringUtils.isBlank(reverseAttribName));
Map<String, Object> attribInfo = new HashMap<>();
attribInfo.put("name", attributeDef.getName());
attribInfo.put("dataType", attributeDef.getTypeName());
attribInfo.put("isUnique", attributeDef.isUnique());
attribInfo.put("isIndexable", attributeDef.isIndexable());
attribInfo.put("isComposite", isComposite);
attribInfo.put("reverseAttributeName", reverseAttribName);
Map<String, Object> multiplicity = new HashMap<>();
multiplicity.put("lower", attributeDef.getValuesMinCount());
multiplicity.put("upper", attributeDef.getValuesMaxCount());
multiplicity.put(
"isUnique", AtlasAttributeDef.Cardinality.SET.equals(attributeDef.getCardinality()));
attribInfo.put("multiplicity", AtlasType.toJson(multiplicity));
return AtlasType.toJson(attribInfo);
}
public static AtlasStructDef toStructDef(
AtlasVertex vertex, AtlasStructDef structDef, AtlasTypeDefGraphStoreV1 typeDefStore)
throws AtlasBaseException {
AtlasStructDef ret = (structDef != null) ? structDef : new AtlasStructDef();
typeDefStore.vertexToTypeDef(vertex, ret);
List<AtlasAttributeDef> attributeDefs = new ArrayList<>();
List<String> attrNames = vertex.getProperty(AtlasGraphUtilsV1.getPropertyKey(ret), List.class);
if (CollectionUtils.isNotEmpty(attrNames)) {
for (String attrName : attrNames) {
String propertyKey = AtlasGraphUtilsV1.getPropertyKey(ret, attrName);
String attribJson = vertex.getProperty(propertyKey, String.class);
attributeDefs.add(
toAttributeDefFromJson(
structDef, AtlasType.fromJson(attribJson, Map.class), typeDefStore));
}
}
ret.setAttributeDefs(attributeDefs);
return ret;
}
private static AtlasAttributeDef toAttributeDefFromJson(
AtlasStructDef structDef, Map attribInfo, AtlasTypeDefGraphStoreV1 typeDefStore)
throws AtlasBaseException {
AtlasAttributeDef ret = new AtlasAttributeDef();
ret.setName((String) attribInfo.get("name"));
ret.setTypeName((String) attribInfo.get("dataType"));
ret.setUnique((Boolean) attribInfo.get("isUnique"));
ret.setIndexable((Boolean) attribInfo.get("isIndexable"));
String attrTypeName = ret.getTypeName();
if (AtlasTypeUtil.isArrayType(attrTypeName)) {
Set<String> typeNames = AtlasTypeUtil.getReferencedTypeNames(ret.getTypeName());
if (typeNames.size() > 0) {
attrTypeName = typeNames.iterator().next();
}
}
if (!AtlasTypeUtil.isBuiltInType(attrTypeName)) {
AtlasVertex attributeType = typeDefStore.findTypeVertexByName(attrTypeName);
// check for isComposite/reverseAttributeName for entity types
if (attributeType != null && typeDefStore.isTypeVertex(attributeType, TypeCategory.CLASS)) {
String reverseAttribName = (String) attribInfo.get("reverseAttributeName");
Boolean isComposite = (Boolean) attribInfo.get("isComposite");
if (StringUtils.isNotBlank(reverseAttribName) || isComposite) {
if (AtlasTypeUtil.isMapType(attrTypeName)) {
throw new AtlasBaseException(
AtlasErrorCode.CONSTRAINT_NOT_SUPPORTED_ON_MAP_TYPE,
structDef.getName(),
ret.getName(),
attrTypeName);
}
String refAttributeName = null;
List<String> attrNames =
attributeType.getProperty(AtlasGraphUtilsV1.getPropertyKey(attrTypeName), List.class);
if (CollectionUtils.isNotEmpty(attrNames)) {
for (String attrName : attrNames) {
String attribJson =
attributeType.getProperty(
AtlasGraphUtilsV1.getPropertyKey(attrTypeName, attrName), String.class);
Map refAttrInfo = AtlasType.fromJson(attribJson, Map.class);
String refAttribType = (String) refAttrInfo.get("dataType");
String refAttribRevAttribName = (String) refAttrInfo.get("reverseAttributeName");
if (StringUtils.equals(refAttribType, structDef.getName())
&& StringUtils.equals(refAttribRevAttribName, ret.getName())) {
refAttributeName = (String) refAttrInfo.get("name");
break;
}
}
}
if (isComposite) {
if (StringUtils.isNotBlank(
refAttributeName)) { // ex: hive_table.columns, hive_column.table
Map<String, Object> params = new HashMap<>();
params.put(AtlasConstraintDef.CONSTRAINT_PARAM_REF_ATTRIBUTE, refAttributeName);
ret.addConstraint(new AtlasConstraintDef(CONSTRAINT_TYPE_MAPPED_FROM_REF, params));
} else { // ex: hive_table.partitionKeys, with no reverseAttribute-reference
ret.addConstraint(new AtlasConstraintDef(CONSTRAINT_TYPE_FOREIGN_KEY));
}
}
if (StringUtils.isNotBlank(reverseAttribName)) { // ex: hive_column.table
Map<String, Object> params = new HashMap<>();
params.put(CONSTRAINT_PARAM_ON_DELETE, CONSTRAINT_PARAM_VAL_CASCADE);
ret.addConstraint(new AtlasConstraintDef(CONSTRAINT_TYPE_FOREIGN_KEY, params));
}
}
}
}
Map multiplicity = AtlasType.fromJson((String) attribInfo.get("multiplicity"), Map.class);
Number minCount = (Number) multiplicity.get("lower");
Number maxCount = (Number) multiplicity.get("upper");
Boolean isUnique = (Boolean) multiplicity.get("isUnique");
if (minCount == null || minCount.intValue() == 0) {
ret.setOptional(true);
ret.setValuesMinCount(0);
} else {
ret.setOptional(false);
ret.setValuesMinCount(minCount.intValue());
}
if (maxCount == null || maxCount.intValue() < 2) {
ret.setCardinality(AtlasAttributeDef.Cardinality.SINGLE);
ret.setValuesMaxCount(1);
} else {
if (isUnique == null || isUnique == Boolean.FALSE) {
ret.setCardinality(AtlasAttributeDef.Cardinality.LIST);
} else {
ret.setCardinality(AtlasAttributeDef.Cardinality.SET);
}
ret.setValuesMaxCount(maxCount.intValue());
}
return ret;
}
