1package im.conversations.android.xmpp.model.stanza;
 2
 3import com.google.common.base.Strings;
 4
 5import eu.siacs.conversations.xml.Element;
 6
 7import im.conversations.android.annotation.XmlElement;
 8import im.conversations.android.xmpp.model.error.Error;
 9
10import java.util.Locale;
11
12@XmlElement
13public class Iq extends Stanza {
14
15    public static Iq TIMEOUT = new Iq(Type.TIMEOUT);
16
17    public Iq() {
18        super(Iq.class);
19    }
20
21    public Iq(final Type type) {
22        super(Iq.class);
23        this.setAttribute("type", type.toString().toLowerCase(Locale.ROOT));
24    }
25
26    // TODO get rid of timeout
27    public enum Type {
28        SET,
29        GET,
30        ERROR,
31        RESULT,
32        TIMEOUT
33    }
34
35    public Type getType() {
36        return Type.valueOf(
37                Strings.nullToEmpty(this.getAttribute("type")).toUpperCase(Locale.ROOT));
38    }
39
40    @Override
41    public boolean isInvalid() {
42        final var id = getId();
43        if (Strings.isNullOrEmpty(id)) {
44            return true;
45        }
46        return super.isInvalid();
47    }
48
49    // Legacy methods that need to be refactored:
50
51    public Element query() {
52        final Element query = findChild("query");
53        if (query != null) {
54            return query;
55        }
56        return addChild("query");
57    }
58
59    public Element query(final String xmlns) {
60        final Element query = query();
61        query.setAttribute("xmlns", xmlns);
62        return query();
63    }
64
65    public Iq generateResponse(final Iq.Type type) {
66        final var packet = new Iq(type);
67        packet.setTo(this.getFrom());
68        packet.setId(this.getId());
69        return packet;
70    }
71
72    public String getErrorCondition() {
73        final Error error = getError();
74        final var condition = error == null ? null : error.getCondition();
75        return condition == null ? null : condition.getName();
76    }
77}