1package eu.siacs.conversations.xmpp.jingle.stanzas;
 2
 3import com.google.common.base.Preconditions;
 4import com.google.common.collect.ImmutableList;
 5
 6import java.util.Collection;
 7import java.util.List;
 8
 9import eu.siacs.conversations.xml.Element;
10import eu.siacs.conversations.xml.Namespace;
11
12public class Group extends Element {
13
14    private Group() {
15        super("group", Namespace.JINGLE_APPS_GROUPING);
16    }
17
18    public Group(final String semantics, final Collection<String> identificationTags) {
19        super("group", Namespace.JINGLE_APPS_GROUPING);
20        this.setAttribute("semantics", semantics);
21        for (String tag : identificationTags) {
22            this.addChild(new Element("content").setAttribute("name", tag));
23        }
24    }
25
26    public String getSemantics() {
27        return this.getAttribute("semantics");
28    }
29
30    public List<String> getIdentificationTags() {
31        final ImmutableList.Builder<String> builder = new ImmutableList.Builder<>();
32        for (final Element child : getChildren()) {
33            if ("content".equals(child.getName())) {
34                final String name = child.getAttribute("name");
35                if (name != null) {
36                    builder.add(name);
37                }
38            }
39        }
40        return builder.build();
41    }
42
43    public static Group ofSdpString(final String input) {
44        final ImmutableList.Builder<String> tagBuilder = new ImmutableList.Builder<>();
45        final String[] parts = input.split(" ");
46        if (parts.length >= 2) {
47            final String semantics = parts[0];
48            for(int i = 1; i < parts.length; ++i) {
49                tagBuilder.add(parts[i]);
50            }
51            return new Group(semantics,tagBuilder.build());
52        }
53        return null;
54    }
55
56    public static Group upgrade(final Element element) {
57        Preconditions.checkArgument("group".equals(element.getName()));
58        Preconditions.checkArgument(Namespace.JINGLE_APPS_GROUPING.equals(element.getNamespace()));
59        final Group group = new Group();
60        group.setAttributes(element.getAttributes());
61        group.setChildren(element.getChildren());
62        return group;
63    }
64}