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bleve/http/debug.go

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// 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 (
"fmt"
"net/http"
"github.com/couchbaselabs/bleve/index/upside_down"
"github.com/gorilla/mux"
)
// DebugDocumentHandler allows you to debug the index content
// for a given document id. the document ID should be mapped
// to the mux router URL with name "docId"
type DebugDocumentHandler struct {
defaultIndexName string
}
func NewDebugDocumentHandler(defaultIndexName string) *DebugDocumentHandler {
return &DebugDocumentHandler{
defaultIndexName: defaultIndexName,
}
}
func (h *DebugDocumentHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
// find the index to operate on
indexName := mux.Vars(req)["indexName"]
if indexName == "" {
indexName = h.defaultIndexName
}
index := IndexByName(indexName)
if index == nil {
showError(w, req, fmt.Sprintf("no such index '%s'", indexName), 404)
return
}
// find the docID
docID := mux.Vars(req)["docID"]
rows, err := index.DumpDoc(docID)
if err != nil {
showError(w, req, fmt.Sprintf("error debugging document: %v", err), 500)
return
}
rv := make([]interface{}, 0)
for _, row := range rows {
udcRow, ok := row.(upside_down.UpsideDownCouchRow)
if ok {
tmp := struct {
Key []byte `json:"key"`
Val []byte `json:"val"`
}{
Key: udcRow.Key(),
Val: udcRow.Value(),
}
rv = append(rv, tmp)
}
}
mustEncode(w, rv)
}