1// Copyright 2012-2015 Oliver Eilhard. All rights reserved.
2// Use of this source code is governed by a MIT-license.
3// See http://olivere.mit-license.org/license.txt for details.
4
5package elastic
6
7import (
8	"encoding/json"
9	"fmt"
10	"strings"
11)
12
13// -- Bulk delete request --
14
15// Bulk request to remove document from Elasticsearch.
16type BulkDeleteRequest struct {
17	BulkableRequest
18	index       string
19	typ         string
20	id          string
21	routing     string
22	refresh     *bool
23	version     int64  // default is MATCH_ANY
24	versionType string // default is "internal"
25}
26
27func NewBulkDeleteRequest() *BulkDeleteRequest {
28	return &BulkDeleteRequest{}
29}
30
31func (r *BulkDeleteRequest) Index(index string) *BulkDeleteRequest {
32	r.index = index
33	return r
34}
35
36func (r *BulkDeleteRequest) Type(typ string) *BulkDeleteRequest {
37	r.typ = typ
38	return r
39}
40
41func (r *BulkDeleteRequest) Id(id string) *BulkDeleteRequest {
42	r.id = id
43	return r
44}
45
46func (r *BulkDeleteRequest) Routing(routing string) *BulkDeleteRequest {
47	r.routing = routing
48	return r
49}
50
51func (r *BulkDeleteRequest) Refresh(refresh bool) *BulkDeleteRequest {
52	r.refresh = &refresh
53	return r
54}
55
56func (r *BulkDeleteRequest) Version(version int64) *BulkDeleteRequest {
57	r.version = version
58	return r
59}
60
61// VersionType can be "internal" (default), "external", "external_gte",
62// "external_gt", or "force".
63func (r *BulkDeleteRequest) VersionType(versionType string) *BulkDeleteRequest {
64	r.versionType = versionType
65	return r
66}
67
68func (r *BulkDeleteRequest) String() string {
69	lines, err := r.Source()
70	if err == nil {
71		return strings.Join(lines, "\n")
72	}
73	return fmt.Sprintf("error: %v", err)
74}
75
76func (r *BulkDeleteRequest) Source() ([]string, error) {
77	lines := make([]string, 1)
78
79	source := make(map[string]interface{})
80	deleteCommand := make(map[string]interface{})
81	if r.index != "" {
82		deleteCommand["_index"] = r.index
83	}
84	if r.typ != "" {
85		deleteCommand["_type"] = r.typ
86	}
87	if r.id != "" {
88		deleteCommand["_id"] = r.id
89	}
90	if r.routing != "" {
91		deleteCommand["_routing"] = r.routing
92	}
93	if r.version > 0 {
94		deleteCommand["_version"] = r.version
95	}
96	if r.versionType != "" {
97		deleteCommand["_version_type"] = r.versionType
98	}
99	if r.refresh != nil {
100		deleteCommand["refresh"] = *r.refresh
101	}
102	source["delete"] = deleteCommand
103
104	body, err := json.Marshal(source)
105	if err != nil {
106		return nil, err
107	}
108
109	lines[0] = string(body)
110
111	return lines, nil
112}
113