| // |
| // 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 ( |
| "context" |
| "errors" |
| |
| "github.com/apache/pulsar/pulsar-function-go/pf" |
| ) |
| |
| func metricRecorderFunction(ctx context.Context, in []byte) error { |
| inputstr := string(in) |
| fctx, ok := pf.FromContext(ctx) |
| if !ok { |
| return errors.New("get Go Functions Context error") |
| } |
| fctx.RecordMetric("hit-count", 1) |
| if inputstr == "eleven" { |
| fctx.RecordMetric("elevens-count", 1) |
| } |
| return nil |
| } |
| |
| func main() { |
| pf.Start(metricRecorderFunction) |
| } |
