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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
// RegexpFilter allows filtering for regular expressions.
// See http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-regexp-filter.html
// and http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-regexp-query.html#regexp-syntax
// for details.
type RegexpFilter struct {
Filter
name string
regexp string
flags *string
maxDeterminizedStates *int
cache *bool
cacheKey string
filterName string
}
// NewRegexpFilter sets up a new RegexpFilter.
func NewRegexpFilter(name, regexp string) RegexpFilter {
return RegexpFilter{name: name, regexp: regexp}
}
// Flags sets the regexp flags.
// See http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/query-dsl-regexp-query.html#_optional_operators
// for details.
func (f RegexpFilter) Flags(flags string) RegexpFilter {
f.flags = &flags
return f
}
func (f RegexpFilter) MaxDeterminizedStates(maxDeterminizedStates int) RegexpFilter {
f.maxDeterminizedStates = &maxDeterminizedStates
return f
}
func (f RegexpFilter) Cache(cache bool) RegexpFilter {
f.cache = &cache
return f
}
func (f RegexpFilter) CacheKey(cacheKey string) RegexpFilter {
f.cacheKey = cacheKey
return f
}
func (f RegexpFilter) FilterName(filterName string) RegexpFilter {
f.filterName = filterName
return f
}
func (f RegexpFilter) Source() interface{} {
// {
// "regexp" : {
// "..." : "..."
// }
// }
source := make(map[string]interface{})
params := make(map[string]interface{})
source["regexp"] = params
if f.flags == nil {
params[f.name] = f.regexp
} else {
x := make(map[string]interface{})
x["value"] = f.regexp
x["flags"] = *f.flags
if f.maxDeterminizedStates != nil {
x["max_determinized_states"] = *f.maxDeterminizedStates
}
params[f.name] = x
}
if f.filterName != "" {
params["_name"] = f.filterName
}
if f.cache != nil {
params["_cache"] = *f.cache
}
if f.cacheKey != "" {
params["_cache_key"] = f.cacheKey
}
return source
}
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