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// Copyright 2012-2015 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 (
"fmt"
"net/url"
"strings"
"gopkg.in/olivere/elastic.v3/uritemplates"
)
// IndicesGetService retrieves information about one or more indices.
//
// See https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-get-index.html
// for more details.
type IndicesGetService struct {
client *Client
pretty bool
index []string
feature []string
local *bool
ignoreUnavailable *bool
allowNoIndices *bool
expandWildcards string
flatSettings *bool
human *bool
}
// NewIndicesGetService creates a new IndicesGetService.
func NewIndicesGetService(client *Client) *IndicesGetService {
return &IndicesGetService{
client: client,
index: make([]string, 0),
feature: make([]string, 0),
}
}
// Index is a list of index names.
func (s *IndicesGetService) Index(indices ...string) *IndicesGetService {
s.index = append(s.index, indices...)
return s
}
// Feature is a list of features.
func (s *IndicesGetService) Feature(features ...string) *IndicesGetService {
s.feature = append(s.feature, features...)
return s
}
// Local indicates whether to return local information, i.e. do not retrieve
// the state from master node (default: false).
func (s *IndicesGetService) Local(local bool) *IndicesGetService {
s.local = &local
return s
}
// IgnoreUnavailable indicates whether to ignore unavailable indexes (default: false).
func (s *IndicesGetService) IgnoreUnavailable(ignoreUnavailable bool) *IndicesGetService {
s.ignoreUnavailable = &ignoreUnavailable
return s
}
// AllowNoIndices indicates whether to ignore if a wildcard expression
// resolves to no concrete indices (default: false).
func (s *IndicesGetService) AllowNoIndices(allowNoIndices bool) *IndicesGetService {
s.allowNoIndices = &allowNoIndices
return s
}
// ExpandWildcards indicates whether wildcard expressions should get
// expanded to open or closed indices (default: open).
func (s *IndicesGetService) ExpandWildcards(expandWildcards string) *IndicesGetService {
s.expandWildcards = expandWildcards
return s
}
/* Disabled because serialization would fail in that case. */
/*
// FlatSettings make the service return settings in flat format (default: false).
func (s *IndicesGetService) FlatSettings(flatSettings bool) *IndicesGetService {
s.flatSettings = &flatSettings
return s
}
*/
// Human indicates whether to return version and creation date values
// in human-readable format (default: false).
func (s *IndicesGetService) Human(human bool) *IndicesGetService {
s.human = &human
return s
}
// Pretty indicates that the JSON response be indented and human readable.
func (s *IndicesGetService) Pretty(pretty bool) *IndicesGetService {
s.pretty = pretty
return s
}
// buildURL builds the URL for the operation.
func (s *IndicesGetService) buildURL() (string, url.Values, error) {
var err error
var path string
var index []string
if len(s.index) > 0 {
index = s.index
} else {
index = []string{"_all"}
}
if len(s.feature) > 0 {
// Build URL
path, err = uritemplates.Expand("/{index}/{feature}", map[string]string{
"index": strings.Join(index, ","),
"feature": strings.Join(s.feature, ","),
})
} else {
// Build URL
path, err = uritemplates.Expand("/{index}", map[string]string{
"index": strings.Join(index, ","),
})
}
if err != nil {
return "", url.Values{}, err
}
// Add query string parameters
params := url.Values{}
if s.pretty {
params.Set("pretty", "1")
}
if s.expandWildcards != "" {
params.Set("expand_wildcards", s.expandWildcards)
}
if s.flatSettings != nil {
params.Set("flat_settings", fmt.Sprintf("%v", *s.flatSettings))
}
if s.human != nil {
params.Set("human", fmt.Sprintf("%v", *s.human))
}
if s.local != nil {
params.Set("local", fmt.Sprintf("%v", *s.local))
}
if s.ignoreUnavailable != nil {
params.Set("ignore_unavailable", fmt.Sprintf("%v", *s.ignoreUnavailable))
}
if s.allowNoIndices != nil {
params.Set("allow_no_indices", fmt.Sprintf("%v", *s.allowNoIndices))
}
return path, params, nil
}
// Validate checks if the operation is valid.
func (s *IndicesGetService) Validate() error {
var invalid []string
if len(s.index) == 0 {
invalid = append(invalid, "Index")
}
if len(invalid) > 0 {
return fmt.Errorf("missing required fields: %v", invalid)
}
return nil
}
// Do executes the operation.
func (s *IndicesGetService) Do() (map[string]*IndicesGetResponse, error) {
// Check pre-conditions
if err := s.Validate(); err != nil {
return nil, err
}
// Get URL for request
path, params, err := s.buildURL()
if err != nil {
return nil, err
}
// Get HTTP response
res, err := s.client.PerformRequest("GET", path, params, nil)
if err != nil {
return nil, err
}
// Return operation response
var ret map[string]*IndicesGetResponse
if err := s.client.decoder.Decode(res.Body, &ret); err != nil {
return nil, err
}
return ret, nil
}
// IndicesGetResponse is part of the response of IndicesGetService.Do.
type IndicesGetResponse struct {
Aliases map[string]interface{} `json:"aliases"`
Mappings map[string]interface{} `json:"mappings"`
Settings map[string]interface{} `json:"settings"`
Warmers map[string]interface{} `json:"warmers"`
}