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bleve/http/search.go
Marty Schoch a265218f76 heavier refactor of Query interface to simplify
Boostable, Fieldable, Validatable broken out into separate
interfaces.  This allows them to be discoverable when
needed, but ignorable otherwise.  The top-level bleve package
only every cares about Validatable and even that is optional.

Also, this change goes further to make the structure names
more reasonable, for cases where you're directly interacting
with the structures.
2016-09-29 14:54:16 -04:00

88 lines
2.3 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed 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 http
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"github.com/blevesearch/bleve"
"github.com/blevesearch/bleve/search/query"
)
// SearchHandler can handle search requests sent over HTTP
type SearchHandler struct {
defaultIndexName string
IndexNameLookup varLookupFunc
}
func NewSearchHandler(defaultIndexName string) *SearchHandler {
return &SearchHandler{
defaultIndexName: defaultIndexName,
}
}
func (h *SearchHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// find the index to operate on
var indexName string
if h.IndexNameLookup != nil {
indexName = h.IndexNameLookup(req)
}
if indexName == "" {
indexName = h.defaultIndexName
}
index := IndexByName(indexName)
if index == nil {
showError(w, req, fmt.Sprintf("no such index '%s'", indexName), 404)
return
}
// read the request body
requestBody, err := ioutil.ReadAll(req.Body)
if err != nil {
showError(w, req, fmt.Sprintf("error reading request body: %v", err), 400)
return
}
logger.Printf("request body: %s", requestBody)
// parse the request
var searchRequest bleve.SearchRequest
err = json.Unmarshal(requestBody, &searchRequest)
if err != nil {
showError(w, req, fmt.Sprintf("error parsing query: %v", err), 400)
return
}
logger.Printf("parsed request %#v", searchRequest)
// validate the query
if srqv, ok := searchRequest.Query.(query.ValidatableQuery); ok {
err = srqv.Validate()
if err != nil {
showError(w, req, fmt.Sprintf("error validating query: %v", err), 400)
return
}
}
// execute the query
searchResponse, err := index.Search(&searchRequest)
if err != nil {
showError(w, req, fmt.Sprintf("error executing query: %v", err), 500)
return
}
// encode the response
mustEncode(w, searchResponse)
}