[GitHub] [beam] youngoli commented on a change in pull request #11665: [BEAM-9951] Creating a synthetic source for the Go SDK.

[GitBox <gi...@apache.org>]

youngoli commented on a change in pull request #11665:
URL: https://github.com/apache/beam/pull/11665#discussion_r425453509



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File path: sdks/go/pkg/beam/io/synthetic/source.go
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@@ -0,0 +1,151 @@
+// Licensed to the Apache Software Foundation (ASF) under one or more
+// contributor license agreements.  See the NOTICE file distributed with
+// this work for additional information regarding copyright ownership.
+// The ASF licenses this file to You under the Apache License, Version 2.0
+// (the "License"); you may not use this file except in compliance with
+// the License.  You may obtain a copy of the License at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package synthetic contains transforms for creating synthetic pipelines.
+// Synthetic pipelines are pipelines that simulate the behavior of possible
+// pipelines in order to test performance, splitting, liquid sharding, and
+// various other infrastructure used for running pipelines. This category of
+// tests are not concerned with the correctness of the elements themselves, but
+// need to simulate transforms that output many elements throughout varying
+// pipeline shapes.
+package synthetic
+
+import (
+	"github.com/apache/beam/sdks/go/pkg/beam"
+	"github.com/apache/beam/sdks/go/pkg/beam/io/rtrackers/offsetrange"
+	"math/rand"
+	"time"
+)
+
+// Source creates a synthetic source transform that emits randomly
+// generated KV<[]byte, []byte> elements.
+//
+// This transform accepts a PCollection of SourceConfig, where each SourceConfig
+// determines the synthetic source's behavior for that element.

Review comment:
       No, it applies to the synthetic steps, so it would be in an upcoming StepConfig, but that would probably still have a similar interface.




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