1package eu.siacs.conversations.xmpp.jingle;
  2
  3import com.google.common.base.Objects;
  4import com.google.common.base.Preconditions;
  5
  6import eu.siacs.conversations.entities.Account;
  7import eu.siacs.conversations.entities.Message;
  8import eu.siacs.conversations.services.XmppConnectionService;
  9import eu.siacs.conversations.xmpp.jingle.stanzas.JinglePacket;
 10import rocks.xmpp.addr.Jid;
 11
 12public abstract class AbstractJingleConnection {
 13
 14    public static final String JINGLE_MESSAGE_PROPOSE_ID_PREFIX = "jm-propose-";
 15    public static final String JINGLE_MESSAGE_PROCEED_ID_PREFIX = "jm-proceed-";
 16
 17    protected final JingleConnectionManager jingleConnectionManager;
 18    protected final XmppConnectionService xmppConnectionService;
 19    protected final Id id;
 20    protected final Jid initiator;
 21
 22    AbstractJingleConnection(final JingleConnectionManager jingleConnectionManager, final Id id, final Jid initiator) {
 23        this.jingleConnectionManager = jingleConnectionManager;
 24        this.xmppConnectionService = jingleConnectionManager.getXmppConnectionService();
 25        this.id = id;
 26        this.initiator = initiator;
 27    }
 28
 29    boolean isInitiator() {
 30        return initiator.equals(id.account.getJid());
 31    }
 32
 33    abstract void deliverPacket(JinglePacket jinglePacket);
 34
 35    public Id getId() {
 36        return id;
 37    }
 38
 39    abstract void notifyRebound();
 40
 41
 42    public static class Id {
 43        public final Account account;
 44        public final Jid with;
 45        public final String sessionId;
 46
 47        private Id(final Account account, final Jid with, final String sessionId) {
 48            Preconditions.checkNotNull(with);
 49            Preconditions.checkArgument(with.isFullJid());
 50            this.account = account;
 51            this.with = with;
 52            this.sessionId = sessionId;
 53        }
 54
 55        public static Id of(Account account, JinglePacket jinglePacket) {
 56            return new Id(account, jinglePacket.getFrom(), jinglePacket.getSessionId());
 57        }
 58
 59        public static Id of(Account account, Jid with, final String sessionId) {
 60            return new Id(account, with, sessionId);
 61        }
 62
 63        public static Id of(Message message) {
 64            return new Id(
 65                    message.getConversation().getAccount(),
 66                    message.getCounterpart(),
 67                    JingleConnectionManager.nextRandomId()
 68            );
 69        }
 70
 71        @Override
 72        public boolean equals(Object o) {
 73            if (this == o) return true;
 74            if (o == null || getClass() != o.getClass()) return false;
 75            Id id = (Id) o;
 76            return Objects.equal(account.getJid(), id.account.getJid()) &&
 77                    Objects.equal(with, id.with) &&
 78                    Objects.equal(sessionId, id.sessionId);
 79        }
 80
 81        @Override
 82        public int hashCode() {
 83            return Objects.hashCode(account.getJid(), with, sessionId);
 84        }
 85    }
 86
 87
 88    public enum State {
 89        NULL, //default value; nothing has been sent or received yet
 90        PROPOSED,
 91        ACCEPTED,
 92        PROCEED,
 93        REJECTED,
 94        RETRACTED,
 95        SESSION_INITIALIZED, //equal to 'PENDING'
 96        SESSION_INITIALIZED_PRE_APPROVED,
 97        SESSION_ACCEPTED, //equal to 'ACTIVE'
 98        TERMINATED_SUCCESS, //equal to 'ENDED' (after successful call) ui will just close
 99        TERMINATED_DECLINED_OR_BUSY, //equal to 'ENDED' (after other party declined the call)
100        TERMINATED_CONNECTIVITY_ERROR, //equal to 'ENDED' (but after network failures; ui will display retry button)
101        TERMINATED_CANCEL_OR_TIMEOUT, //more or less the same as retracted; caller pressed end call before session was accepted
102        TERMINATED_APPLICATION_FAILURE
103    }
104}