mirror of https://github.com/go-gitea/gitea.git
133 lines
3.7 KiB
Go
133 lines
3.7 KiB
Go
// 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 elastic
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// MovFnAggregation, given an ordered series of data, will slice a window across
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// the data and allow the user to specify a custom script that is executed for
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// each window of data.
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//
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// You must pass a script to process the values. There are a number of predefined
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// script functions you can use as described here:
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// https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-aggregations-pipeline-movfn-aggregation.html#_pre_built_functions.
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//
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// Example:
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// agg := elastic.NewMovFnAggregation(
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// "the_sum", // bucket path
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// elastic.NewScript("MovingFunctions.stdDev(values, MovingFunctions.unweightedAvg(values))"),
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// 10, // window size
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// )
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//
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// For more details, see
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// https://www.elastic.co/guide/en/elasticsearch/reference/7.0/search-aggregations-pipeline-movfn-aggregation.html.
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type MovFnAggregation struct {
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script *Script
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format string
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gapPolicy string
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window int
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meta map[string]interface{}
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bucketsPaths []string
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}
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// NewMovFnAggregation creates and initializes a new MovFnAggregation.
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//
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// Deprecated: The MovFnAggregation has been deprecated in 6.4.0. Use the more generate MovFnAggregation instead.
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func NewMovFnAggregation(bucketsPath string, script *Script, window int) *MovFnAggregation {
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return &MovFnAggregation{
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bucketsPaths: []string{bucketsPath},
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script: script,
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window: window,
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}
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}
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// Script is the script to run.
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func (a *MovFnAggregation) Script(script *Script) *MovFnAggregation {
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a.script = script
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return a
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}
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// Format to use on the output of this aggregation.
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func (a *MovFnAggregation) Format(format string) *MovFnAggregation {
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a.format = format
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return a
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}
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// GapPolicy defines what should be done when a gap in the series is discovered.
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// Valid values include "insert_zeros" or "skip". Default is "insert_zeros".
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func (a *MovFnAggregation) GapPolicy(gapPolicy string) *MovFnAggregation {
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a.gapPolicy = gapPolicy
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return a
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}
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// GapInsertZeros inserts zeros for gaps in the series.
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func (a *MovFnAggregation) GapInsertZeros() *MovFnAggregation {
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a.gapPolicy = "insert_zeros"
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return a
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}
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// GapSkip skips gaps in the series.
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func (a *MovFnAggregation) GapSkip() *MovFnAggregation {
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a.gapPolicy = "skip"
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return a
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}
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// Window sets the window size for this aggregation.
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func (a *MovFnAggregation) Window(window int) *MovFnAggregation {
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a.window = window
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return a
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}
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// Meta sets the meta data to be included in the aggregation response.
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func (a *MovFnAggregation) Meta(metaData map[string]interface{}) *MovFnAggregation {
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a.meta = metaData
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return a
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}
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// BucketsPath sets the paths to the buckets to use for this pipeline aggregator.
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func (a *MovFnAggregation) BucketsPath(bucketsPaths ...string) *MovFnAggregation {
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a.bucketsPaths = append(a.bucketsPaths, bucketsPaths...)
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return a
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}
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// Source returns the a JSON-serializable interface.
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func (a *MovFnAggregation) Source() (interface{}, error) {
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source := make(map[string]interface{})
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params := make(map[string]interface{})
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source["moving_fn"] = params
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// Add buckets paths
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switch len(a.bucketsPaths) {
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case 0:
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case 1:
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params["buckets_path"] = a.bucketsPaths[0]
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default:
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params["buckets_path"] = a.bucketsPaths
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}
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// Script
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if a.script != nil {
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src, err := a.script.Source()
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if err != nil {
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return nil, err
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}
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params["script"] = src
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}
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if a.format != "" {
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params["format"] = a.format
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}
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if a.gapPolicy != "" {
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params["gap_policy"] = a.gapPolicy
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}
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params["window"] = a.window
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// Add Meta data if available
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if len(a.meta) > 0 {
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source["meta"] = a.meta
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}
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return source, nil
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}
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