Start adding reporting

metadata-ingestion/src/gometa/ingestion/api/report.py

@@ -0,0 +1,16 @@
+from abc import abstractmethod, ABCMeta
+from dataclasses import dataclass
+import json
+import pprint
+
+@dataclass
+class Report:
+
+    def as_obj(self) -> dict:
+        return self.__dict__
+
+    def as_string(self) -> str:
+        return pprint.pformat(self.as_obj())
+
+    def as_json(self) -> str:
+        return json.dumps(self.as_obj())

metadata-ingestion/src/gometa/ingestion/api/sink.py

@@ -1,11 +1,25 @@
 from abc import abstractmethod, ABCMeta
-from dataclasses import dataclass
+from dataclasses import dataclass, field
+from typing import List, Any
 
 from gometa.ingestion.api.closeable import Closeable
 from gometa.ingestion.api.common import RecordEnvelope, WorkUnit, PipelineContext
+from gometa.ingestion.api.report import Report
+
+@dataclass
+class SinkReport(Report):
+    # workunits_processed = 0
+    records_written = 0
+    failures: List[Any] = field(default_factory=list)
+
+    def report_record_written(self, record: RecordEnvelope):
+        self.records_written += 1
+
+    def report_failure(self, info: Any) -> None:
+        self.failures.append(info)
 
 
-class WriteCallback:
+class WriteCallback(metaclass=ABCMeta):
 
     @abstractmethod
     def on_success(self, record_envelope: RecordEnvelope, success_metadata: dict):
@@ -50,5 +64,9 @@ class Sink(Closeable, metaclass = ABCMeta):
         pass
 
     @abstractmethod
-    def close(self):
+    def get_report(self) -> SinkReport:
+        pass
+
+    @abstractmethod
+    def close(self) -> None:
         pass

metadata-ingestion/src/gometa/ingestion/api/source.py

@@ -1,8 +1,19 @@
-from typing import Iterable
+from typing import Iterable, List
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from abc import abstractmethod, ABCMeta
 from .closeable import Closeable
 from .common import WorkUnit, PipelineContext, RecordEnvelope
+from .report import Report
+
+
+@dataclass
+class SourceReport(Report):
+    workunits_produced = 0
+    workunit_ids: List[str] = field(default_factory=list)
+
+    def report_workunit(self, wu: WorkUnit):
+        self.workunits_produced += 1
+        self.workunit_ids.append(wu.id)
 
 
 class Extractor(Closeable, metaclass=ABCMeta):
@@ -27,3 +38,7 @@ class Source(Closeable, metaclass = ABCMeta):
     @abstractmethod
     def get_workunits(self) -> Iterable[WorkUnit]:
         pass
+
+    @abstractmethod
+    def get_report(self) -> SourceReport:
+        pass

metadata-ingestion/src/gometa/ingestion/run/pipeline.py

@@ -1,6 +1,7 @@
 from typing import Dict
 from pydantic import BaseModel
 from dataclasses import dataclass, field
+import pprint
 from gometa.configuration.common import DynamicTypedConfig, DynamicFactory
 from gometa.ingestion.api.source import Source, Extractor
 from gometa.ingestion.source import source_class_mapping
@@ -72,7 +73,7 @@ class Pipeline:
         callback = LoggingCallback()
         extractor = self.extractor_class()
         SinkClass: Type[Sink] = self.sink_class
-        sink = SinkClass.create(self.sink_config, self.ctx)
+        sink: Sink = SinkClass.create(self.sink_config, self.ctx)
         logger.info(f"Sink type:{self.config.sink.type},{self.sink_class} configured")
         for wu in self.source.get_workunits():
             # TODO: change extractor interface
@@ -84,3 +85,9 @@ class Pipeline:
             extractor.close()
             sink.handle_work_unit_end(wu)
         sink.close()
+
+        result = {
+            'source': self.source.get_report().as_obj(),
+            'sink': sink.get_report().as_obj(),
+        }
+        pprint.pprint(result, sort_dicts=False)

metadata-ingestion/src/gometa/ingestion/sink/datahub_rest.py

@@ -1,12 +1,12 @@
 from abc import ABC, abstractmethod
-from dataclasses import dataclass
+from dataclasses import dataclass, field
 from typing import Optional, TypeVar, Type, Dict
 from pydantic import BaseModel, Field, ValidationError, validator
 from enum import Enum
 from pathlib import Path
 import requests
 from requests.exceptions import HTTPError
-from gometa.ingestion.api.sink import Sink, WriteCallback
+from gometa.ingestion.api.sink import Sink, WriteCallback, SinkReport
 from gometa.ingestion.api.common import RecordEnvelope, WorkUnit
 import json
 from gometa.metadata import json_converter
@@ -65,6 +65,7 @@ class DatahubRestSinkConfig(BaseModel):
 @dataclass
 class DatahubRestSink(Sink):
     config: DatahubRestSinkConfig
+    report: SinkReport = field(default_factory=SinkReport)
 
     @classmethod
     def create(cls, config_dict, ctx):
@@ -103,13 +104,19 @@ class DatahubRestSink(Sink):
             # with open('data.json', 'w') as outfile:
             #     json.dump(serialized_snapshot, outfile)
             response.raise_for_status()
+            self.report.report_record_written(record_envelope)
             write_callback.on_success(record_envelope, {})
         except HTTPError as e:
             info = response.json()
             breakpoint()
+            self.report.report_failure({'e': e, 'info': info})
             write_callback.on_failure(record_envelope, e, info)
         except Exception as e:
+            self.report.report_failure({'e': e})
             write_callback.on_failure(record_envelope, e, {})
 
+    def get_report(self) -> SinkReport:
+        return self.report
+
     def close(self):
         pass

metadata-ingestion/src/gometa/ingestion/source/kafka.py

@@ -1,5 +1,5 @@
 from gometa.configuration import ConfigModel, KafkaConnectionConfig
-from gometa.ingestion.api.source import Source, Extractor
+from gometa.ingestion.api.source import Source, Extractor, SourceReport
 from gometa.ingestion.api.source import WorkUnit
 from typing import Optional, Iterable
 from dataclasses import dataclass
@@ -25,6 +25,7 @@ class KafkaSource(Source):
     source_config: KafkaSourceConfig
     topic_pattern: re.Pattern
     consumer: confluent_kafka.Consumer
+    report: SourceReport = SourceReport()
 
     def __init__(self, config, ctx):
         super().__init__(ctx)
@@ -43,8 +44,12 @@ class KafkaSource(Source):
             if re.fullmatch(self.topic_pattern, t): 
                 # TODO: topics config should support allow and deny patterns
                 if not t.startswith("_"):
-                    yield KafkaWorkUnit(id=f'kafka-{t}', config=KafkaSourceConfig(connection=self.source_config.connection, topic=t))
+                    wu = KafkaWorkUnit(id=f'kafka-{t}', config=KafkaSourceConfig(connection=self.source_config.connection, topic=t))
-
+                    self.report.report_workunit(wu)
+                    yield wu
+    
+    def get_report(self):
+        return self.report
         
     def close(self):
         if self.consumer: