| /* |
| * 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 datareq |
| |
| import ( |
| "net/http" |
| "net/url" |
| "time" |
| |
| "github.com/apache/trafficcontrol/lib/go-tc" |
| "github.com/apache/trafficcontrol/traffic_monitor/peer" |
| "github.com/apache/trafficcontrol/traffic_monitor/srvhttp" |
| "github.com/apache/trafficcontrol/traffic_monitor/threadsafe" |
| "github.com/apache/trafficcontrol/traffic_monitor/todata" |
| jsoniter "github.com/json-iterator/go" |
| ) |
| |
| // APIPeerStates contains the data to be returned for an API call to get the peer states of a Traffic Monitor. This contains common API data returned by most endpoints, and a map of peers, to caches' states. |
| type APIPeerStates struct { |
| tc.CommonAPIData |
| Peers map[tc.TrafficMonitorName]map[tc.CacheName][]CacheState `json:"peers"` |
| } |
| |
| // CacheState represents the available state of a cache. |
| type CacheState struct { |
| Value bool `json:"value"` |
| Ipv4Available bool `json:"ipv4Available"` |
| Ipv6Available bool `json:"ipv6Available"` |
| } |
| |
| func srvPeerStates(params url.Values, errorCount threadsafe.Uint, path string, toData todata.TODataThreadsafe, peerStates peer.CRStatesPeersThreadsafe) ([]byte, int) { |
| filter, err := NewPeerStateFilter(path, params, toData.Get().ServerTypes) |
| if err != nil { |
| HandleErr(errorCount, path, err) |
| return []byte(err.Error()), http.StatusBadRequest |
| } |
| json := jsoniter.ConfigFastest |
| bytes, err := json.Marshal(createAPIPeerStates(peerStates.GetCrstates(), peerStates.GetPeersOnline(), filter, params)) |
| return WrapErrCode(errorCount, path, bytes, err) |
| } |
| |
| func createAPIPeerStates(peerStates map[tc.TrafficMonitorName]tc.CRStates, peersOnline map[tc.TrafficMonitorName]bool, filter *PeerStateFilter, params url.Values) APIPeerStates { |
| apiPeerStates := APIPeerStates{ |
| CommonAPIData: srvhttp.GetCommonAPIData(params, time.Now()), |
| Peers: map[tc.TrafficMonitorName]map[tc.CacheName][]CacheState{}, |
| } |
| |
| for peer, state := range peerStates { |
| if !peersOnline[peer] { |
| continue |
| } |
| if !filter.UsePeer(peer) { |
| continue |
| } |
| if _, ok := apiPeerStates.Peers[peer]; !ok { |
| apiPeerStates.Peers[peer] = map[tc.CacheName][]CacheState{} |
| } |
| peerState := apiPeerStates.Peers[peer] |
| for cache, available := range state.Caches { |
| if !filter.UseCache(cache) { |
| continue |
| } |
| peerState[cache] = []CacheState{CacheState{Value: available.IsAvailable, Ipv4Available: available.Ipv4Available, Ipv6Available: available.Ipv6Available}} |
| } |
| apiPeerStates.Peers[peer] = peerState |
| } |
| return apiPeerStates |
| } |