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package eu.siacs.conversations.xmpp.bind;
import com.google.common.collect.Collections2;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import eu.siacs.conversations.xml.Element;
import eu.siacs.conversations.xml.Namespace;
public class Bind2 {
public static final Collection<String> QUICKSTART_FEATURES = Arrays.asList(
Namespace.CARBONS,
Namespace.STREAM_MANAGEMENT
);
public static Collection<String> features(final Element inline) {
final Element inlineBind2 =
inline != null ? inline.findChild("bind", Namespace.BIND2) : null;
final Element inlineBind2Inline =
inlineBind2 != null ? inlineBind2.findChild("inline", Namespace.BIND2) : null;
if (inlineBind2 == null) {
return null;
}
if (inlineBind2Inline == null) {
return Collections.emptyList();
}
return Collections2.transform(
inlineBind2Inline.getChildren(), c -> c == null ? null : c.getAttribute("var"));
}
}
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