| // Licensed to 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. Apache Software Foundation (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 api |
| |
| import ( |
| "reflect" |
| |
| "github.com/apache/skywalking-satellite/internal/pkg/plugin" |
| "github.com/apache/skywalking-satellite/internal/satellite/event" |
| |
| v1 "skywalking.apache.org/repo/goapi/satellite/data/v1" |
| ) |
| |
| // Queue is a plugin interface, that defines new queues. |
| type Queue interface { |
| plugin.Plugin |
| |
| // Initialize creates the queue. |
| Initialize() error |
| |
| // Enqueue a inputEvent into the queue. |
| Enqueue(event *v1.SniffData) error |
| |
| // Dequeue returns a SequenceEvent when Queue is not empty, |
| Dequeue() (*SequenceEvent, error) |
| |
| // Close would close the queue. |
| Close() error |
| |
| // Ack the lastOffset |
| Ack(lastOffset *event.Offset) |
| |
| // TotalSize total capacity of queue |
| TotalSize() int64 |
| |
| // UsedCount used count of queue |
| UsedCount() int64 |
| |
| // IsFull the queue is full |
| IsFull() bool |
| } |
| |
| // SequenceEvent is a wrapper to pass the event and the offset. |
| type SequenceEvent struct { |
| Event *v1.SniffData |
| Offset event.Offset |
| } |
| |
| // GetQueue an initialized filter plugin. |
| func GetQueue(config plugin.Config) Queue { |
| return plugin.Get(reflect.TypeOf((*Queue)(nil)).Elem(), config).(Queue) |
| } |