youngoli commented on a change in pull request #16908: URL: https://github.com/apache/beam/pull/16908#discussion_r819033562
########## File path: sdks/go/test/integration/expansions.go ########## @@ -0,0 +1,116 @@ +// 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 integration + +import ( + "fmt" + "strconv" + "time" + + "github.com/apache/beam/sdks/v2/go/test/integration/internal/jars" + "github.com/apache/beam/sdks/v2/go/test/integration/internal/ports" +) + +// ExpansionServices is a struct used for getting addresses and starting expansion services, based +// on the --expansion_jar and --expansion_addr flags in this package. The main reason to use this +// instead of accessing the flags directly is to let it handle jar startup and shutdown. +// +// Usage +// +// Create an ExpansionServices object in TestMain with NewExpansionServices. Then use GetAddr for +// every expansion service needed for the test. Call Shutdown on it before finishing TestMain (or +// simply defer a call to it). +// +// ExpansionServices is not concurrency safe, and so a single instance should not be used within +// multiple individual tests, due to the possibility of those tests being run concurrently. It is +// recommended to only use ExpansionServices in TestMain to avoid this. +// +// Example: +// var retCode int +// defer func() { os.Exit(retCode) }() // Defer os.Exit so it happens after other defers. +// services := integration.NewExpansionServices() +// defer func() { services.Shutdown() }() +// addr, err := services.GetAddr("example") +// if err != nil { +// panic(err) +// } Review comment: Done. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
