// Copyright (c) 2019 The Jaeger Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package app

import (
	"github.com/jaegertracing/jaeger/storage/spanstore"
)

func getUniqueOperationNames(operations []spanstore.Operation) []string {
	// only return unique operation names
	set := make(map[string]struct{})
	for _, operation := range operations {
		set[operation.Name] = struct{}{}
	}
	var operationNames []string
	for operation := range set {
		operationNames = append(operationNames, operation)
	}
	return operationNames
}
