001/*
002 *
003 * Copyright © 2017 Paul Schaub, 2019 Florian Schmaus
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.jivesoftware.smackx.hashes.provider;
018
019import java.io.IOException;
020
021import org.jivesoftware.smack.packet.XmlEnvironment;
022import org.jivesoftware.smack.provider.ExtensionElementProvider;
023import org.jivesoftware.smack.xml.XmlPullParser;
024import org.jivesoftware.smack.xml.XmlPullParserException;
025
026import org.jivesoftware.smackx.hashes.HashManager;
027import org.jivesoftware.smackx.hashes.element.HashElement;
028
029import org.jxmpp.JxmppContext;
030
031/**
032 * Provider for HashElements.
033 */
034public class HashElementProvider extends ExtensionElementProvider<HashElement> {
035
036    public static final HashElementProvider INSTANCE = new HashElementProvider();
037
038    @Override
039    public HashElement parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment, JxmppContext jxmppContext) throws XmlPullParserException, IOException {
040        String algo = parser.getAttributeValue(null, HashElement.ATTR_ALGO);
041        String hashB64 = parser.nextText();
042        return new HashElement(HashManager.ALGORITHM.valueOfName(algo), hashB64);
043    }
044}