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// Copyright 2012-present Oliver Eilhard. All rights reserved.
// Use of this source code is governed by a MIT-license.
// See http://olivere.mit-license.org/license.txt for details.
package elastic
import (
"encoding/json"
"fmt"
"strings"
)
// -- Bulk delete request --
// Bulk request to remove a document from Elasticsearch.
//
// See https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html
// for details.
type BulkDeleteRequest struct {
BulkableRequest
index string
typ string
id string
parent string
routing string
refresh *bool
version int64 // default is MATCH_ANY
versionType string // default is "internal"
source []string
}
// NewBulkDeleteRequest returns a new BulkDeleteRequest.
func NewBulkDeleteRequest() *BulkDeleteRequest {
return &BulkDeleteRequest{}
}
// Index specifies the Elasticsearch index to use for this delete request.
// If unspecified, the index set on the BulkService will be used.
func (r *BulkDeleteRequest) Index(index string) *BulkDeleteRequest {
r.index = index
r.source = nil
return r
}
// Type specifies the Elasticsearch type to use for this delete request.
// If unspecified, the type set on the BulkService will be used.
func (r *BulkDeleteRequest) Type(typ string) *BulkDeleteRequest {
r.typ = typ
r.source = nil
return r
}
// Id specifies the identifier of the document to delete.
func (r *BulkDeleteRequest) Id(id string) *BulkDeleteRequest {
r.id = id
r.source = nil
return r
}
// Parent specifies the parent of the request, which is used in parent/child
// mappings.
func (r *BulkDeleteRequest) Parent(parent string) *BulkDeleteRequest {
r.parent = parent
r.source = nil
return r
}
// Routing specifies a routing value for the request.
func (r *BulkDeleteRequest) Routing(routing string) *BulkDeleteRequest {
r.routing = routing
r.source = nil
return r
}
// Refresh indicates whether to update the shards immediately after
// the delete has been processed. Deleted documents will disappear
// in search immediately at the cost of slower bulk performance.
func (r *BulkDeleteRequest) Refresh(refresh bool) *BulkDeleteRequest {
r.refresh = &refresh
r.source = nil
return r
}
// Version indicates the version to be deleted as part of an optimistic
// concurrency model.
func (r *BulkDeleteRequest) Version(version int64) *BulkDeleteRequest {
r.version = version
r.source = nil
return r
}
// VersionType can be "internal" (default), "external", "external_gte",
// "external_gt", or "force".
func (r *BulkDeleteRequest) VersionType(versionType string) *BulkDeleteRequest {
r.versionType = versionType
r.source = nil
return r
}
// String returns the on-wire representation of the delete request,
// concatenated as a single string.
func (r *BulkDeleteRequest) String() string {
lines, err := r.Source()
if err != nil {
return fmt.Sprintf("error: %v", err)
}
return strings.Join(lines, "\n")
}
// Source returns the on-wire representation of the delete request,
// split into an action-and-meta-data line and an (optional) source line.
// See https://www.elastic.co/guide/en/elasticsearch/reference/current/docs-bulk.html
// for details.
func (r *BulkDeleteRequest) Source() ([]string, error) {
if r.source != nil {
return r.source, nil
}
lines := make([]string, 1)
source := make(map[string]interface{})
deleteCommand := make(map[string]interface{})
if r.index != "" {
deleteCommand["_index"] = r.index
}
if r.typ != "" {
deleteCommand["_type"] = r.typ
}
if r.id != "" {
deleteCommand["_id"] = r.id
}
if r.parent != "" {
deleteCommand["_parent"] = r.parent
}
if r.routing != "" {
deleteCommand["_routing"] = r.routing
}
if r.version > 0 {
deleteCommand["_version"] = r.version
}
if r.versionType != "" {
deleteCommand["_version_type"] = r.versionType
}
if r.refresh != nil {
deleteCommand["refresh"] = *r.refresh
}
source["delete"] = deleteCommand
body, err := json.Marshal(source)
if err != nil {
return nil, err
}
lines[0] = string(body)
r.source = lines
return lines, nil
}
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