Feature/pkgsplit (#83)

* Starting to spawn base package
* More package hacking
* Bedrock and VertexAI
* Parquet split
* Updated templates
* Utils

trustgraph-parquet/trustgraph/dump/triples/parquet/processor.py

@@ -0,0 +1,85 @@
+
+"""
+Write graphs triples to parquet files in a directory.
+"""
+
+import pulsar
+import base64
+import os
+import argparse
+import time
+
+from .... schema import Triple
+from .... schema import triples_store_queue
+from .... base import Consumer
+
+from . writer import ParquetWriter
+
+module = ".".join(__name__.split(".")[1:-1])
+
+default_input_queue = triples_store_queue
+default_subscriber = module
+default_graph_host='localhost'
+default_directory = "."
+default_file_template = "triples-{id}.parquet"
+default_rotation_time = 60
+        
+class Processor(Consumer):
+
+    def __init__(self, **params):
+        
+        input_queue = params.get("input_queue", default_input_queue)
+        subscriber = params.get("subscriber", default_subscriber)
+        directory = params.get("directory", default_directory)
+        file_template = params.get("file_template", default_file_template)
+        rotation_time = params.get("rotation_time", default_rotation_time)
+
+        super(Processor, self).__init__(
+            **params | {
+                "input_queue": input_queue,
+                "subscriber": subscriber,
+                "input_schema": Triple,
+            }
+        )
+
+        self.writer = ParquetWriter(directory, file_template, rotation_time)
+
+    def __del__(self):
+        if hasattr(self, "writer"):
+            del self.writer
+
+    def handle(self, msg):
+
+        v = msg.value()
+        self.writer.write(v.s.value, v.p.value, v.o.value)
+
+    @staticmethod
+    def add_args(parser):
+
+        Consumer.add_args(
+            parser, default_input_queue, default_subscriber,
+        )
+
+        parser.add_argument(
+            '-d', '--directory',
+            default=default_directory,
+            help=f'Directory to write to (default: {default_directory})'
+        )
+
+        parser.add_argument(
+            '-f', '--file-template',
+            default=default_file_template,
+            help=f'Directory to write to (default: {default_file_template})'
+        )
+
+        parser.add_argument(
+            '-t', '--rotation-time',
+            type=int,
+            default=default_rotation_time,
+            help=f'Rotation time / seconds (default: {default_rotation_time})'
+        )
+
+def run():
+
+    Processor.start(module, __doc__)
+