/*
 * Copyright 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
 *
 * 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
 *
 */

package utils

type Properties map[string]string

func (this Properties) Has(k string) bool {
	_, ok := this[k]
	return ok
}

func (this Properties) Equals(t map[string]string) bool {
	for k, v := range this {
		tv, ok := t[k]
		if !ok || tv != v {
			return false
		}
	}
	for k := range t {
		if !this.Has(k) {
			return false
		}
	}
	return true
}

func (this Properties) Copy() Properties {
	new := Properties{}
	for k, v := range this {
		new[k] = v
	}
	return new
}

func (this Properties) Keys() StringSet {
	new := StringSet{}
	for k := range this {
		new.Add(k)
	}
	return new
}