001/*
002 *   Copyright 2024 Vonage
003 *
004 *   Licensed under the Apache License, Version 2.0 (the "License");
005 *   you may not use this file except in compliance with the License.
006 *   You may obtain a copy of the License at
007 *
008 *        http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *   Unless required by applicable law or agreed to in writing, software
011 *   distributed under the License is distributed on an "AS IS" BASIS,
012 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *   See the License for the specific language governing permissions and
014 *   limitations under the License.
015 */
016package com.vonage.client.voice;
017
018import com.fasterxml.jackson.annotation.JsonCreator;
019import com.fasterxml.jackson.annotation.JsonValue;
020
021/**
022 * Represents standard headers for SIP Connect endpoint.
023 *
024 * @since 8.9.0
025 */
026public enum SipHeader {
027    USER_TO_USER;
028
029    @JsonValue
030    @Override
031    public String toString() {
032        return "User-to-User";
033    }
034
035    /**
036     * Converts a SIP header string to a known enum.
037     *
038     * @param value String representation of the SIP header.
039     * @return The SIP header enum, or {@code null} if the value was empty.
040     * @throws IllegalArgumentException If this enum type has no constant with the specified name.
041     */
042    @JsonCreator
043    public static SipHeader fromString(String value) {
044        if (value == null || value.isEmpty()) return null;
045        return valueOf(value.toUpperCase().replace('-', '_'));
046    }
047}