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bleve/http/debug.go
Marty Schoch 3fd2a64872 BREAKING CHANGE - removed DumpXXX() methods from bleve.Index
The DumpXXX() methods were always documented as internal and
unsupported.  However, now they are being removed from the
public top-level API.  They are still available on the internal
IndexReader, which can be accessed using the Advanced() method.

The DocCount() and DumpXXX() methods on the internal index
have moved to the internal index reader, since they logically
operate on a snapshot of an index.
2016-09-13 12:40:01 -04:00

91 lines
2.4 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 (
"fmt"
"net/http"
"github.com/blevesearch/bleve/index/upside_down"
)
// DebugDocumentHandler allows you to debug the index content
// for a given document id.
type DebugDocumentHandler struct {
defaultIndexName string
IndexNameLookup varLookupFunc
DocIDLookup varLookupFunc
}
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
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
}
// find the docID
var docID string
if h.DocIDLookup != nil {
docID = h.DocIDLookup(req)
}
internalIndex, _, err := index.Advanced()
if err != nil {
showError(w, req, fmt.Sprintf("error getting index: %v", err), 500)
return
}
internalIndexReader, err := internalIndex.Reader()
if err != nil {
showError(w, req, fmt.Sprintf("error operning index reader: %v", err), 500)
return
}
var rv []interface{}
rowChan := internalIndexReader.DumpDoc(docID)
for row := range rowChan {
switch row := row.(type) {
case error:
showError(w, req, fmt.Sprintf("error debugging document: %v", row), 500)
return
case upside_down.UpsideDownCouchRow:
tmp := struct {
Key []byte `json:"key"`
Val []byte `json:"val"`
}{
Key: row.Key(),
Val: row.Value(),
}
rv = append(rv, tmp)
}
}
err = internalIndexReader.Close()
if err != nil {
showError(w, req, fmt.Sprintf("error closing index reader: %v", err), 500)
return
}
mustEncode(w, rv)
}