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88 lines
2.0 KiB
88 lines
2.0 KiB
// Copyright 2012-present Oliver Eilhard. All rights reserved.
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// Use of this source code is governed by a MIT-license.
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// See http://olivere.mit-license.org/license.txt for details.
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package config
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import (
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"fmt"
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"net/url"
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"strconv"
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"strings"
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)
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// Config represents an Elasticsearch configuration.
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type Config struct {
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URL string
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Index string
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Username string
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Password string
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Shards int
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Replicas int
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Sniff *bool
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Healthcheck *bool
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Infolog string
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Errorlog string
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Tracelog string
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}
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// Parse returns the Elasticsearch configuration by extracting it
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// from the URL, its path, and its query string.
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//
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// Example:
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// http://127.0.0.1:9200/store-blobs?shards=1&replicas=0&sniff=false&tracelog=elastic.trace.log
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//
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// The code above will return a URL of http://127.0.0.1:9200, an index name
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// of store-blobs, and the related settings from the query string.
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func Parse(elasticURL string) (*Config, error) {
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cfg := &Config{
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Shards: 1,
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Replicas: 0,
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Sniff: nil,
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}
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uri, err := url.Parse(elasticURL)
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if err != nil {
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return nil, fmt.Errorf("error parsing elastic parameter %q: %v", elasticURL, err)
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}
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index := strings.TrimSuffix(strings.TrimPrefix(uri.Path, "/"), "/")
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if uri.User != nil {
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cfg.Username = uri.User.Username()
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cfg.Password, _ = uri.User.Password()
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}
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uri.User = nil
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if i, err := strconv.Atoi(uri.Query().Get("shards")); err == nil {
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cfg.Shards = i
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}
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if i, err := strconv.Atoi(uri.Query().Get("replicas")); err == nil {
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cfg.Replicas = i
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}
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if s := uri.Query().Get("sniff"); s != "" {
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if b, err := strconv.ParseBool(s); err == nil {
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cfg.Sniff = &b
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}
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}
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if s := uri.Query().Get("healthcheck"); s != "" {
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if b, err := strconv.ParseBool(s); err == nil {
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cfg.Healthcheck = &b
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}
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}
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if s := uri.Query().Get("infolog"); s != "" {
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cfg.Infolog = s
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}
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if s := uri.Query().Get("errorlog"); s != "" {
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cfg.Errorlog = s
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}
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if s := uri.Query().Get("tracelog"); s != "" {
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cfg.Tracelog = s
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}
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uri.Path = ""
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uri.RawQuery = ""
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cfg.URL = uri.String()
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cfg.Index = index
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return cfg, nil
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}
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