[BusinessLogic] expanded 'Schema' to 'Table'

src/participation-hub/business-logic-microservice/app/db/entities/layer_adapter.py

@@ -7,7 +7,7 @@ class LayerAdapter:
     attributes from the dataset correspond to each one
     '''
 
-    def __init__(self, name: str, use_case: str, properties: List[str], cluster_properties: List[str]):
+    def __init__(self, name: str, use_case: str, table: str, properties: List[str], cluster_properties: List[str]):
         '''
         Creates a new instance of LayerAdapter
 
@@ -20,6 +20,7 @@ class LayerAdapter:
         self.name = name
         self.properties = properties
         self.use_case = use_case
+        self.table = table
 
         for prop in cluster_properties:
             if prop not in properties:
@@ -86,7 +87,8 @@ class LayerAdapter:
             "name": self.name,
             "properties": self.properties,
             "cluster_properties": self.cluster_properties,
-            "use_case": self.use_case
+            "use_case": self.use_case,
+            "table": self.table
         }
 
     @staticmethod
@@ -101,6 +103,7 @@ class LayerAdapter:
         return LayerAdapter(
             user_dict["name"],
             user_dict["use_case"],
+            user_dict["table"],
             user_dict["properties"],
             user_dict["cluster_properties"]
         )

src/participation-hub/business-logic-microservice/app/db/entities/schema.py

-from typing import Dict
-
-class Schema:
-    def __init__(self, use_case:str, mappings:Dict[str, str]):
-        self.use_case = use_case
-        self.mappings = mappings
-    
-    def add_mapping(self, internal:str, external:str):
-        if internal not in self.mappings.keys():
-            self.mappings[internal] = external
-    
-    def to_serializable_dict(self) -> Dict:
-        return {
-            "use_case": self.use_case,
-            "mappings": self.mappings
-        }
-    
-    @staticmethod
-    def from_serializable_dict(serializable_dict: Dict):
-        return Schema(
-            serializable_dict["use_case"],
-            serializable_dict["mappings"]
-        )
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/db/entities/table.py

 from typing import Dict
 
 class Table:
-    def __init__(self, name):
+    def __init__(self, use_case: str, name: str, mappings: Dict[str, str]):
+        self.use_case = use_case
         self.name = name
+        self.mappings = mappings
 
     def to_serializable_dict(self) -> Dict:
-        return {"name": self.name}
+        return {
+            "name": self.name, 
+            "use_case": self.use_case,
+            "mappings": self.mappings
+        }
+    
+    def add_mapping(self, internal:str, external:str):
+        if internal not in self.mappings.keys():
+            self.mappings[internal] = external
 
     @staticmethod
     def from_serializable_dict(data: Dict):
-        return Table(data["name"])
+        return Table(
\ No newline at end of file
+            data["use_case"],
+            data["name"],
+            data["mappings"]
+        )

src/participation-hub/business-logic-microservice/app/db/layer_repository.py

-# global imports (dont't worry, red is normal)
-import network_constants as netconst
-from database.MongoRepositoryBase import MongoRepositoryBase
-from db.entities.table import Table
-
-import pymongo
-import json
-from typing import List, Dict
-
-class TableRepository(MongoRepositoryBase):
-    '''This is a repository for MongoDb.'''
-
-    def __init__(self):
-        super().__init__(netconst.BUSINESS_LOGIC_DB_HOSTNAME,
-                         netconst.BUSINESS_LOGIC_DB_PORT,
-                         'rest-gateway-db')
-
-        self._table_collection = 'tables'
-
-    def add_one(self, table: Table):
-        super().insert_entry(self._table_collection, table.to_serializable_dict())
-    
-    
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/db/repository.py

@@ -14,7 +14,7 @@ class Repository(MongoRepositoryBase):
     def __init__(self):
         super().__init__(netconst.BUSINESS_LOGIC_DB_HOSTNAME,
                          netconst.BUSINESS_LOGIC_DB_PORT,
-                         'rest-gateway-db')
+                         'business-logic-db')
 
         self._adapter_collection = 'layer_adapters'
         self._use_case_collection = 'use_cases'
@@ -29,8 +29,8 @@ class Repository(MongoRepositoryBase):
 
         return [LayerAdapter.from_serializable_dict(row) for row in list(result)]
 
-    def one(self, name : str, use_case: str) -> LayerAdapter:
-        result = list(super().get_entries(self._adapter_collection, selection={"name": name, "use_case": use_case}))
+    def one(self, name : str, use_case: str, table: str) -> LayerAdapter:
+        result = list(super().get_entries(self._adapter_collection, selection={"name": name, "use_case": use_case, "table": table}))
 
         if len(result) == 1:
             return LayerAdapter.from_serializable_dict(result[0])
@@ -44,18 +44,14 @@ class Repository(MongoRepositoryBase):
     def add(self, adapter : LayerAdapter):
         super().insert_entry(self._adapter_collection, adapter.to_serializable_dict())
 
-    def add_empty(self, name: str, use_case: str):
-        adapter = LayerAdapter(name, use_case, [], [])
-        super().insert_entry(self._adapter_collection, adapter.to_serializable_dict())
-
     def update_use_case(self, adapter : LayerAdapter, use_case: str):
         collection = self._database[self._adapter_collection]
-        collection.update_one({"name":adapter.name, "use_case": use_case}, {"$set": adapter.to_serializable_dict()})
+        collection.update_one({"name":adapter.name, "use_case": use_case, "table": adapter.table}, {"$set": adapter.to_serializable_dict()})
     
     def update(self, adapter : LayerAdapter):
         collection = self._database[self._adapter_collection]
-        collection.update_one({"name":adapter.name, "use_case": adapter.use_case}, {"$set": adapter.to_serializable_dict()})
+        collection.update_one({"name":adapter.name, "use_case": adapter.use_case, "table": adapter.table}, {"$set": adapter.to_serializable_dict()})
     
-    def delete_all_with_name_and_use_case(self, name: str, use_case: str):
+    def delete(self, adapter : LayerAdapter):
         collection = self._database[self._adapter_collection]
-        collection.delete_many({"name": name, "use_case": use_case})
+        collection.delete_many({"name": adapter.name, "use_case": adapter.use_case, "table": adapter.table})
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/db/schema_repository.py

-# global imports (dont't worry, red is normal)
-import network_constants as netconst
-from database.MongoRepositoryBase import MongoRepositoryBase
-from db.entities.schema import Schema
-from db.use_case_repository import UseCaseRepository
-
-import pymongo
-import json
-from typing import List, Dict
-
-class SchemaRepository(MongoRepositoryBase):
-    '''This is a repository for MongoDb.'''
-
-    def __init__(self):
-        super().__init__(netconst.BUSINESS_LOGIC_DB_HOSTNAME,
-                         netconst.BUSINESS_LOGIC_DB_PORT,
-                         'rest-gateway-db')
-
-        self._schema_collection = 'schemas'
-    
-    def all(self) -> List[Schema]:
-        result = super().get_entries(self._schema_collection, projection={'_id': False})
-        return [Schema.from_serializable_dict(row) for row in list(result)]
-
-    def add(self, schema: Schema):
-        super().insert_entry(self._schema_collection, schema.to_serializable_dict())
-
-    def get_for_use_case(self, use_case: str) -> Schema:
-        self.put(use_case)
-        result = list(super().get_entries(self._schema_collection, projection={'_id': False}, selection={"use_case": use_case}))
-
-        if len(result) > 1:
-            raise ValueError("No more than 1 Schema allowed per use-case!")
-
-        if len(result) == 1:
-            return Schema.from_serializable_dict(result[0])
-        
-        return None
-    
-    def put(self, use_case: str):
-        result = list(super().get_entries(self._schema_collection, projection={'_id': False}, selection={"use_case": use_case}))
-
-        if len(result) == 0:
-            schema = Schema(use_case, mappings={})
-            self.add(schema)
-        else:
-            schema = Schema.from_serializable_dict(result[0])
-
-        return schema
-    
-    def delete_for_use_case(self, use_case: str): 
-        collection = self._database[self._schema_collection]
-        collection.delete_many({"use_case": use_case})
-
-    def delete_all(self):
-        collection = self._database[self._schema_collection]
-        collection.delete_many({})
-
-    def update(self, schema: Schema):
-        collection = self._database[self._schema_collection]
-        collection.update_one({"use_case": schema.use_case}, {"$set": schema.to_serializable_dict()})

src/participation-hub/business-logic-microservice/app/db/table_repository.py

+# global imports (dont't worry, red is normal)
+import network_constants as netconst
+from database.MongoRepositoryBase import MongoRepositoryBase
+from db.entities.table import Table
+
+from typing import Dict, List
+
+class TableRepository(MongoRepositoryBase):
+    def __init__(self):
+        super().__init__(netconst.BUSINESS_LOGIC_DB_HOSTNAME,
+                         netconst.BUSINESS_LOGIC_DB_PORT,
+                         'business-logic-db')
+
+        self._collection = 'tables'
+    
+    def get_all(self) -> List[Table]:
+        result = super().get_entries(self._collection, projection={'_id': False})
+        return [Table.from_serializable_dict(row) for row in list(result)]
+    
+    def get_all_for_use_case(self, use_case:str) -> List[Table]:
+        result = super().get_entries(self._collection, selection={'use_case': use_case}, projection={'_id': False})
+        return [Table.from_serializable_dict(row) for row in result]
+    
+    def get_for_use_case_and_name(self, use_case:str, name:str) -> Table:
+        result = list(super().get_entries(self._collection, selection={"use_case":use_case, "name":name}, projection={'_id': False}))
+
+        if len(result) == 1:
+            return Table.from_serializable_dict(result[0])
+        if len(result) == 0:
+            return None
+        
+        raise ValueError("No more than 1 Schema allowed per use-case!")
+
+    def add(self, table:Table):
+        super().insert_entry(self._collection, table.to_serializable_dict())
+
+    def delete_for_use_case(self, use_case: str): 
+        collection = self._database[self._collection]
+        collection.delete_many({"use_case": use_case})
+    
+    def delete_all(self):
+        collection = self._database[self._collection]
+        collection.delete_many({})
+    
+    def update(self, table: Table):
+        collection = self._database[self._collection]
+        collection.update_one({"use_case": table.use_case, "name": table.name}, {"$set": table.to_serializable_dict()})
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/db/use_case_repository.py

@@ -13,7 +13,7 @@ class UseCaseRepository(MongoRepositoryBase):
     def __init__(self):
         super().__init__(netconst.BUSINESS_LOGIC_DB_HOSTNAME,
                          netconst.BUSINESS_LOGIC_DB_PORT,
-                         'rest-gateway-db')
+                         'business-logic-db')
 
         self._use_case_collection = 'use_cases'
     
@@ -30,6 +30,17 @@ class UseCaseRepository(MongoRepositoryBase):
         collection = self._database[self._use_case_collection]
         collection.delete_many({"name": name})
 
+    def get_by_name(self, name: str):
+        result = list(super().get_entries(self._use_case_collection, {"name":name}))
+
+        if len(result) == 1:
+            return UseCase.from_serializable_dict(result[0])
+        
+        if len(result) == 0:
+            return None
+        
+        raise ValueError("More than one Use-Case in the DB!")
+
     def put(self, use_case_name: str):
         use_cases = self.all()
 
@@ -38,4 +49,3 @@ class UseCaseRepository(MongoRepositoryBase):
         if len(existing_use_cases) == 0:
             use_case = UseCase(use_case_name)
             super().insert_entry(self._use_case_collection, use_case.to_serializable_dict())
\ No newline at end of file
-    

src/participation-hub/business-logic-microservice/app/routes/schema.py

-#global imports
-from db.entities.schema import Schema
-from db.entities.layer_adapter import LayerAdapter
-from db.schema_repository import SchemaRepository
-from db.use_case_repository import UseCaseRepository
-from services.layer_adapter_service import LayerAdapterService
-
-import json
-from flask import Response, request
-
-use_case_repository = UseCaseRepository()
-schema_repository = SchemaRepository()
-
-def all():
-    return [schema.to_serializable_dict() for schema in schema_repository.all()]
-
-def add_complete(use_case: str):
-    mappings = request.json
-    
-    reference = schema_repository.get_for_use_case(use_case)
-    if reference != None and len(reference.mappings) > 0:
-        return Response(status=400, response="Schema already exists.")
-    
-    schema_repository.delete_for_use_case(use_case)
-
-    schema_dict = {
-        "use_case": use_case,
-        "mappings": mappings
-    }
-
-    schema_repository.add(Schema.from_serializable_dict(schema_dict))
-
-    return Response(status=200)
-
-def get_for_use_case(use_case:str):
-    use_case_repository.put(use_case)
-    schema = schema_repository.get_for_use_case(use_case)
-
-    if schema != None:
-        return Response(status=200, response=json.dumps(schema.to_serializable_dict()))
-    
-    return Response(status=404, response=f"Schema {use_case} does not exist")
-
-def delete_for_use_case(use_case:str):
-    schema_repository.delete_for_use_case(use_case)
-
-    return Response(status=200)
-
-def add_mapping(use_case:str):
-    use_case_repository.put(use_case)
-    data = request.json
-
-    if "internal" not in data or "external" not in data:
-        return Response(status=400, response=f"Field missing! Fields required: (internal, external)")
-    
-    schema = schema_repository.get_for_use_case(use_case)
-
-    if schema == None:
-        print("schema not there, creating it...")
-        schema = schema_repository.put(use_case)
-    
-    schema.add_mapping(data["internal"], data["external"])
-    schema_repository.update(schema)
-
-    return Response(status=200)
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/routes/tables.py

+#global imports
+from db.table_repository import TableRepository
+from db.use_case_repository import UseCaseRepository
+from db.entities.table import Table
+
+from flask import Response, request
+
+table_repository = TableRepository()
+use_case_repository = UseCaseRepository()
+
+def all():
+    return [t.to_serializable_dict() for t in table_repository.get_all()]
+
+def all_for_use_case(use_case:str):
+    return [t.to_serializable_dict() for t in table_repository.get_all_for_use_case(use_case)]
+
+def put_mapping(use_case:str, name:str):
+    body = request.json
+
+    if "internal" not in body or "external" not in body:
+        return Response(status=400, response=f"Field missing! Fields required: (internal, external)")
+    
+    table = table_repository.get_for_use_case_and_name(use_case, name)
+
+    if table == None:
+        print("table not there, creating it...")
+        table = table_repository.add(Table(use_case, name, {}))
+    
+    table.add_mapping(body["internal"], body["external"])
+    table_repository.update(table)
+
+    return Response(status=200)
+
+def add_complete(use_case: str):
+    body = request.json
+    body["use_case"] = use_case
+
+    # check if fields are present
+    if "name" not in body or "mappings" not in body:
+        return Response(status=400, response="Field missing! Fields required: (name, mappings)")
+
+    # check if table exists
+    table_reference = table_repository.get_for_use_case_and_name(body["use_case"], body["name"])
+    if table_reference != None:
+        return Response(status=400, response="Table already exists!")
+    
+    use_case_repository.put(body["use_case"])
+
+    table_new = Table.from_serializable_dict(body)
+    table_repository.add(table_new)
+
+    return Response(status=200)
+
+def delete_all_for_use_case(use_case: str):
+    table_repository.delete_for_use_case(use_case)
+    return Response(status=200)
+
+def delete_all():
+    table_repository.delete_all()
+    return Response(status=200)
\ No newline at end of file

src/participation-hub/business-logic-microservice/app/routes/use_case.py

+# global imports
 from db.entities.layer_adapter import LayerAdapter
-
 from db.use_case_repository import UseCaseRepository
+from db.table_repository import TableRepository
 from db.repository import Repository
-from db.schema_repository import SchemaRepository
-
 from services.layer_adapter_service import LayerAdapterService
 
-
 import json
 from flask import Response, request
 
 use_case_repository = UseCaseRepository()
-schema_repository = SchemaRepository()
+table_repository = TableRepository()
 repository = Repository()
 
 def all():
@@ -20,5 +18,21 @@ def all():
 def delete_all():
     use_case_repository.delete_all()
     repository.delete_all()
-    schema_repository.delete_all()
+    table_repository.delete_all()
+    return Response(status=200)
+
+def add():
+    body = request.json
+
+    if "name" not in body.keys():
+        return Response(status=400, response="Field missing! Fields required: (name)")
+    
+    name = body["name"]
+
+    # check if use-case exists
+    reference = use_case_repository.get_by_name(name)
+    if not reference == None:
+        return Response(status=400, response="Use-Case already exists!")
+    
+    use_case_repository.put(name)
     return Response(status=200)

src/participation-hub/business-logic-microservice/app/services/layer_adapter_service.py

 #global imports
 from db.repository import Repository
-from db.schema_repository import SchemaRepository
+from db.table_repository import TableRepository
 from db.use_case_repository import UseCaseRepository
 from db.entities.layer_adapter import LayerAdapter
-from db.entities.schema import Schema
+from db.entities.table import Table
 
 from typing import List
 
 class LayerAdapterService:
 
-    _schema_repository = SchemaRepository()
+    _table_repository = TableRepository()
     _layer_repository = Repository()
     _use_case_repository = UseCaseRepository()
     
@@ -18,10 +18,11 @@ class LayerAdapterService:
         '''
         checks if the given layer has correct mappings regarding the schema of the use_case
         '''
-        schema = LayerAdapterService._schema_repository.put(layer.use_case)
-        for p in layer.properties:
-            if p not in schema.mappings:
-                raise ValueError(f'{p} is not existent in the schema!')
+        # TODO implement with tables
+        # schema = LayerAdapterService._schema_repository.put(layer.use_case)
+        # for p in layer.properties:
+        #     if p not in schema.mappings:
+        #         raise ValueError(f'{p} is not existent in the schema!')
 
     @staticmethod
     def add_complete(layer: LayerAdapter):
@@ -39,6 +40,6 @@ class LayerAdapterService:
     def delete_all_use_cases():
         # TODO
         LayerAdapterService._layer_repository.delete_all_use_cases()
-        LayerAdapterService._schema_repository.delete_all()
+        LayerAdapterService._table_repository.delete_all()
         LayerAdapterService._use_case_repository.delete_all()
    
\ No newline at end of file