1package eu.siacs.conversations.xmpp.jingle;
 2
 3import com.google.common.collect.Collections2;
 4import com.google.common.collect.ImmutableList;
 5import com.google.common.collect.ImmutableSet;
 6
 7import eu.siacs.conversations.xmpp.jingle.stanzas.Content;
 8import eu.siacs.conversations.xmpp.jingle.stanzas.GenericDescription;
 9import eu.siacs.conversations.xmpp.jingle.stanzas.GenericTransportInfo;
10import eu.siacs.conversations.xmpp.jingle.stanzas.Group;
11import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
12
13import java.util.List;
14import java.util.Map;
15import java.util.Set;
16
17public abstract class AbstractContentMap<
18        D extends GenericDescription, T extends GenericTransportInfo> {
19
20    public final Group group;
21
22    public final Map<String, DescriptionTransport<D, T>> contents;
23
24    protected AbstractContentMap(
25            final Group group, final Map<String, DescriptionTransport<D, T>> contents) {
26        this.group = group;
27        this.contents = contents;
28    }
29
30    public static class UnsupportedApplicationException extends IllegalArgumentException {
31        UnsupportedApplicationException(String message) {
32            super(message);
33        }
34    }
35
36    public static class UnsupportedTransportException extends IllegalArgumentException {
37        UnsupportedTransportException(String message) {
38            super(message);
39        }
40    }
41
42    public Set<Content.Senders> getSenders() {
43        return ImmutableSet.copyOf(Collections2.transform(contents.values(), dt -> dt.senders));
44    }
45
46    public List<String> getNames() {
47        return ImmutableList.copyOf(contents.keySet());
48    }
49
50    JinglePacket toJinglePacket(final JinglePacket.Action action, final String sessionId) {
51        final JinglePacket jinglePacket = new JinglePacket(action, sessionId);
52        for (final Map.Entry<String, DescriptionTransport<D, T>> entry : this.contents.entrySet()) {
53            final DescriptionTransport<D, T> descriptionTransport = entry.getValue();
54            final Content content =
55                    new Content(
56                            Content.Creator.INITIATOR,
57                            descriptionTransport.senders,
58                            entry.getKey());
59            if (descriptionTransport.description != null) {
60                content.addChild(descriptionTransport.description);
61            }
62            content.addChild(descriptionTransport.transport);
63            jinglePacket.addJingleContent(content);
64        }
65        if (this.group != null) {
66            jinglePacket.addGroup(this.group);
67        }
68        return jinglePacket;
69    }
70
71    void requireContentDescriptions() {
72        if (this.contents.size() == 0) {
73            throw new IllegalStateException("No contents available");
74        }
75        for (final Map.Entry<String, DescriptionTransport<D, T>> entry : this.contents.entrySet()) {
76            if (entry.getValue().description == null) {
77                throw new IllegalStateException(
78                        String.format("%s is lacking content description", entry.getKey()));
79            }
80        }
81    }
82}