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https://github.com/vanitasvitae/Smack.git
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227ef2c5ae
replaces DefaultExtensionElement which is now deprecated. Also changes Stanza (and MultiMap) API so that there can be duplicate extension elements, as this change is required for StandardExtensionElement and by the XMPP standard.
99 lines
3.8 KiB
Java
99 lines
3.8 KiB
Java
/**
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*
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* Copyright 2015 Florian Schmaus.
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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.smack.parsing;
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import java.io.IOException;
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import java.util.LinkedHashMap;
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import java.util.Map;
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import org.jivesoftware.smack.packet.StandardExtensionElement;
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import org.jivesoftware.smack.packet.StandardExtensionElement.Builder;
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import org.jivesoftware.smack.provider.ExtensionElementProvider;
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import org.jivesoftware.smack.util.ParserUtils;
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import org.jivesoftware.smack.util.StringUtils;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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/**
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* The parser for {@link StandardExtensionElement}s.
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*
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* @author Florian Schmaus
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*
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*/
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public class StandardExtensionElementProvider extends ExtensionElementProvider<StandardExtensionElement> {
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public static StandardExtensionElementProvider INSTANCE = new StandardExtensionElementProvider();
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@Override
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public StandardExtensionElement parse(final XmlPullParser parser, final int initialDepth)
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throws XmlPullParserException, IOException {
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// Unlike most (all?) other providers, we don't know the name and namespace of the element
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// we are parsing here.
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String name = parser.getName();
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String namespace = parser.getNamespace();
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Builder builder = StandardExtensionElement.builder(name, namespace);
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final int namespaceCount = parser.getNamespaceCount(initialDepth);
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final int attributeCount = parser.getAttributeCount();
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final Map<String, String> attributes = new LinkedHashMap<>(namespaceCount + attributeCount);
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for (int i = 0; i < namespaceCount; i++) {
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String nsprefix = parser.getNamespacePrefix(i);
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if (nsprefix == null) {
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// Skip the default namespace.
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continue;
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}
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// XmlPullParser must either return null or a non-empty String.
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assert StringUtils.isNotEmpty(nsprefix);
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String nsuri = parser.getNamespaceUri(i);
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attributes.put("xmlns:" + nsprefix, nsuri);
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}
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for (int i = 0; i < attributeCount; i++) {
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String attributePrefix = parser.getAttributePrefix(i);
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String attributeName = parser.getAttributeName(i);
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String attributeValue = parser.getAttributeValue(i);
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String attributeKey;
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if (StringUtils.isNullOrEmpty(attributePrefix)) {
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attributeKey = attributeName;
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}
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else {
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attributeKey = attributePrefix + ':' + attributeName;
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}
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attributes.put(attributeKey, attributeValue);
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}
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builder.addAttributes(attributes);
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outerloop: while (true) {
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int event = parser.next();
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switch (event) {
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case XmlPullParser.START_TAG:
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builder.addElement(parse(parser, parser.getDepth()));
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break;
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case XmlPullParser.TEXT:
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builder.setText(parser.getText());
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break;
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case XmlPullParser.END_TAG:
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if (initialDepth == parser.getDepth()) {
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break outerloop;
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}
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break;
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}
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}
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ParserUtils.assertAtEndTag(parser);
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return builder.build();
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}
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}
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