1// Copyright (c) 2014 Couchbase, Inc. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package http 16 17import ( 18 "fmt" 19 "net/http" 20) 21 22type DocCountHandler struct { 23 defaultIndexName string 24 IndexNameLookup varLookupFunc 25} 26 27func NewDocCountHandler(defaultIndexName string) *DocCountHandler { 28 return &DocCountHandler{ 29 defaultIndexName: defaultIndexName, 30 } 31} 32 33func (h *DocCountHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) { 34 // find the index to operate on 35 var indexName string 36 if h.IndexNameLookup != nil { 37 indexName = h.IndexNameLookup(req) 38 } 39 if indexName == "" { 40 indexName = h.defaultIndexName 41 } 42 index := IndexByName(indexName) 43 if index == nil { 44 showError(w, req, fmt.Sprintf("no such index '%s'", indexName), 404) 45 return 46 } 47 48 docCount, err := index.DocCount() 49 if err != nil { 50 showError(w, req, fmt.Sprintf("error counting docs: %v", err), 500) 51 return 52 } 53 rv := struct { 54 Status string `json:"status"` 55 Count uint64 `json:"count"` 56 }{ 57 Status: "ok", 58 Count: docCount, 59 } 60 mustEncode(w, rv) 61} 62