mirror of https://codeberg.org/Mercury-IM/Smack
70 lines
2.2 KiB
Java
70 lines
2.2 KiB
Java
/**
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*
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* Copyright © 2016-2021 Florian Schmaus and Frank Matheron
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smackx.mam.element;
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/**
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* MAM versions supported by Smack.
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*
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* @since 4.5.0
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*/
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public enum MamVersion {
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// Note that the order in which the enum values are defined, is also the order in which we attempt to find a
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// supported version. The versions should therefore be listed in order of newest to oldest, so that Smack prefers
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// using a newer version over an older version.
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MAM2("urn:xmpp:mam:2") {
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@Override
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public MamElementFactory newElementFactory() {
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return new MamV2ElementFactory();
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}
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},
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MAM1("urn:xmpp:mam:1") {
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@Override
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public MamElementFactory newElementFactory() {
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return new MamV1ElementFactory();
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}
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};
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private final String namespace;
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MamVersion(String namespace) {
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this.namespace = namespace;
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}
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/**
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* Each MAM version is identified by its namespace. Returns the namespace for this MAM version.
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* @return the namespace of the MAM version
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*/
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public String getNamespace() {
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return namespace;
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}
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/**
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* Creates a new factory that creates IQ's and extension objects for this MAM version.
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* @return the factory
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*/
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public abstract MamElementFactory newElementFactory();
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public static MamVersion fromNamespace(String namespace) {
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for (MamVersion v : MamVersion.values()) {
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if (v.namespace.equals(namespace)) {
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return v;
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}
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}
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throw new IllegalArgumentException("Unsupported namespace: " + namespace);
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}
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}
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