kamilwu commented on a change in pull request #13389: URL: https://github.com/apache/beam/pull/13389#discussion_r529436579
########## File path: sdks/go/test/load/combine/combine.go ########## @@ -0,0 +1,81 @@ +// 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 main + +import ( + "bytes" + "context" + "flag" + + "github.com/apache/beam/sdks/go/pkg/beam" + "github.com/apache/beam/sdks/go/pkg/beam/io/synthetic" + "github.com/apache/beam/sdks/go/pkg/beam/log" + "github.com/apache/beam/sdks/go/pkg/beam/transforms/top" + "github.com/apache/beam/sdks/go/pkg/beam/x/beamx" + "github.com/apache/beam/sdks/go/test/load" +) + +var ( + fanout = flag.Int( + "fanout", + 1, + "A number of combine operations to perform in parallel.") + topCount = flag.Int( + "top_count", + 20, + "A number passed to the combiner.") + syntheticConfig = flag.String( + "input_options", + "", + "A JSON object that describes the configuration for synthetic source.") +) + +func parseSyntheticConfig() synthetic.SourceConfig { + if *syntheticConfig == "" { + panic("--input_options not provided") + } else { + encoded := []byte(*syntheticConfig) + return synthetic.DefaultSourceConfig().BuildFromJSON(encoded) + } +} + +func CompareLess(key []byte, value []byte) bool { + return bytes.Compare(key, value) < 0 +} + +func main() { + flag.Parse() + beam.Init() + + ctx := context.Background() + + p, s := beam.NewPipelineWithRoot() + src := synthetic.SourceSingle(s, parseSyntheticConfig()) + pcoll := beam.ParDo(s, &load.RuntimeMonitor{}, src) + for i := 0; i < *fanout; i++ { + pcoll = top.LargestPerKey(s, pcoll, *topCount, CompareLess) Review comment: Those transform should be put in a for loop, just like in Python. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
