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/*
* Copyright (c) 2010-2015, Isode Limited, London, England.
* All rights reserved.
*/
package com.isode.stroke.roster;
import java.util.Collection;
import com.isode.stroke.elements.ErrorPayload;
import com.isode.stroke.elements.RosterItemPayload;
import com.isode.stroke.elements.RosterPayload;
import com.isode.stroke.roster.GetRosterRequest;
import com.isode.stroke.queries.IQRouter;
import com.isode.stroke.signals.Slot1;
import com.isode.stroke.signals.Slot2;
public class XMPPRosterController {
private IQRouter iqRouter_;
private RosterPushResponder rosterPushResponder_;
private XMPPRosterImpl xmppRoster_;
private RosterStorage rosterStorage_;
private boolean useVersioning;
/**
* The controller does not gain ownership of these parameters.
*/
public XMPPRosterController(IQRouter iqRouter, XMPPRosterImpl xmppRoster, RosterStorage rosterStorage) {
iqRouter_ = iqRouter;
rosterPushResponder_ = new RosterPushResponder(iqRouter);
xmppRoster_ = xmppRoster;
rosterStorage_ = rosterStorage;
useVersioning = false;
rosterPushResponder_.onRosterReceived.connect(new Slot1<RosterPayload>() {
@Override
public void call(RosterPayload p1) {
handleRosterReceived(p1, false, new RosterPayload());
}
});
rosterPushResponder_.start();
}
public void delete() {
rosterPushResponder_.stop();
}
public void requestRoster() {
xmppRoster_.clear();
final RosterPayload storedRoster = rosterStorage_.getRoster();
GetRosterRequest rosterRequest;
if (useVersioning) {
String version = "";
if (storedRoster != null && storedRoster.getVersion() != null) {
version = storedRoster.getVersion();
}
rosterRequest = GetRosterRequest.create(iqRouter_, version);
}
else {
rosterRequest = GetRosterRequest.create(iqRouter_);
}
rosterRequest.onResponse.connect(new Slot2<RosterPayload, ErrorPayload>() {
@Override
public void call(RosterPayload p1, ErrorPayload p2) {
handleRosterReceived(p1, true, storedRoster);
}
});
rosterRequest.send();
}
private void handleRosterReceived(RosterPayload rosterPayload, boolean initial, RosterPayload previousRoster) {
if (rosterPayload != null) {
for (final RosterItemPayload item : rosterPayload.getItems()) {
//Don't worry about the updated case, the XMPPRoster sorts that out.
if (item.getSubscription() == RosterItemPayload.Subscription.Remove) {
xmppRoster_.removeContact(item.getJID());
} else {
xmppRoster_.addContact(item.getJID(), item.getName(), item.getGroups(), item.getSubscription());
}
}
}
else if (previousRoster != null) {
// The cached version hasn't changed; emit all items
for (final RosterItemPayload item : previousRoster.getItems()) {
if (item.getSubscription() != RosterItemPayload.Subscription.Remove) {
xmppRoster_.addContact(item.getJID(), item.getName(), item.getGroups(), item.getSubscription());
}
else {
System.err.println("ERROR: Stored invalid roster item");
}
}
}
if (initial) {
xmppRoster_.onInitialRosterPopulated.emit();
}
if (rosterPayload != null && rosterPayload.getVersion() != null && useVersioning) {
saveRoster(rosterPayload.getVersion());
}
}
private void saveRoster(final String version) {
Collection<XMPPRosterItem> items = xmppRoster_.getItems();
RosterPayload roster = new RosterPayload();
roster.setVersion(version);
for (final XMPPRosterItem item : items) {
roster.addItem(new RosterItemPayload(item.getJID(), item.getName(), item.getSubscription(), item.getGroups()));
}
rosterStorage_.setRoster(roster);
}
public void setUseVersioning(boolean b) {
useVersioning = b;
}
}
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