96 lines
2.4 KiB
Go
96 lines
2.4 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package http
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import (
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"fmt"
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"net/http"
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"github.com/blevesearch/bleve/index/upsidedown"
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)
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// DebugDocumentHandler allows you to debug the index content
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// for a given document id.
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type DebugDocumentHandler struct {
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defaultIndexName string
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IndexNameLookup varLookupFunc
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DocIDLookup varLookupFunc
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}
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func NewDebugDocumentHandler(defaultIndexName string) *DebugDocumentHandler {
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return &DebugDocumentHandler{
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defaultIndexName: defaultIndexName,
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}
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}
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func (h *DebugDocumentHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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// find the index to operate on
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var indexName string
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if h.IndexNameLookup != nil {
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indexName = h.IndexNameLookup(req)
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}
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if indexName == "" {
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indexName = h.defaultIndexName
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}
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index := IndexByName(indexName)
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if index == nil {
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showError(w, req, fmt.Sprintf("no such index '%s'", indexName), 404)
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return
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}
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// find the docID
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var docID string
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if h.DocIDLookup != nil {
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docID = h.DocIDLookup(req)
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}
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internalIndex, _, err := index.Advanced()
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if err != nil {
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showError(w, req, fmt.Sprintf("error getting index: %v", err), 500)
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return
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}
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internalIndexReader, err := internalIndex.Reader()
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if err != nil {
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showError(w, req, fmt.Sprintf("error operning index reader: %v", err), 500)
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return
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}
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var rv []interface{}
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rowChan := internalIndexReader.DumpDoc(docID)
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for row := range rowChan {
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switch row := row.(type) {
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case error:
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showError(w, req, fmt.Sprintf("error debugging document: %v", row), 500)
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return
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case upsidedown.UpsideDownCouchRow:
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tmp := struct {
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Key []byte `json:"key"`
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Val []byte `json:"val"`
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}{
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Key: row.Key(),
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Val: row.Value(),
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}
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rv = append(rv, tmp)
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}
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}
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err = internalIndexReader.Close()
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if err != nil {
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showError(w, req, fmt.Sprintf("error closing index reader: %v", err), 500)
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return
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}
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mustEncode(w, rv)
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}
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