public void notifySubscribers(String accessCode) {
Element invitationElem = getInvitationElement(accessCode);
if (invitationElem == null) {
Logger.getLogger(getClass())
.warn("invitation for subscription notification not found: " + accessCode);
return;
}
Element subscriberListElem = XmlUtil.getChildByTagName(invitationElem, "subscriberList");
if (subscriberListElem == null) {
return;
}
NodeList subscriberList = subscriberListElem.getElementsByTagName("subscriber");
if ((subscriberList == null) || (subscriberList.getLength() == 0)) {
return;
}
Element notifyElem = XmlUtil.getChildByTagName(invitationElem, "notifySubscribers");
if (notifyElem == null) {
notifyElem = doc.createElement("notifySubscribers");
invitationElem.appendChild(notifyElem);
}
XmlUtil.setChildText(notifyElem, "changed", Long.toString(System.currentTimeMillis()));
changed = true;
}
public boolean addSubscriber(String virtualUser, String subscriberEmail) {
Element watchedInvitation = getInvitationElementByVirtualUser(virtualUser);
if (watchedInvitation == null) {
return false;
}
Element subscriberListElem = XmlUtil.getChildByTagName(watchedInvitation, "subscriberList");
if (subscriberListElem == null) {
subscriberListElem = doc.createElement("subscriberList");
watchedInvitation.appendChild(subscriberListElem);
}
NodeList subscriberList = subscriberListElem.getElementsByTagName("subscriber");
if (subscriberList != null) {
int listLength = subscriberList.getLength();
for (int i = 0; i < listLength; i++) {
Element subscriberElement = (Element) subscriberList.item(i);
if (XmlUtil.getChildText(subscriberElement, "email").equals(subscriberEmail)) {
return false;
}
}
}
Element subscriberElem = doc.createElement("subscriber");
XmlUtil.setChildText(subscriberElem, "email", subscriberEmail);
XmlUtil.setChildText(subscriberElem, "code", generateAccessCode());
subscriberListElem.appendChild(subscriberElem);
changed = true;
return true;
}
public ArrayList<String> listSubscribers(String owner, String path) {
ArrayList<String> subscribers = new ArrayList<String>();
Element watchedInvitation = getInvitationElemenByOwnerAndPath(owner, path);
if (watchedInvitation == null) {
return subscribers;
}
Element subscriberListElem = XmlUtil.getChildByTagName(watchedInvitation, "subscriberList");
if (subscriberListElem == null) {
return subscribers;
}
NodeList subscriberList = subscriberListElem.getElementsByTagName("subscriber");
if (subscriberList != null) {
int listLength = subscriberList.getLength();
for (int i = 0; i < listLength; i++) {
Element subscriberElement = (Element) subscriberList.item(i);
subscribers.add(XmlUtil.getChildText(subscriberElement, "email"));
}
}
if (subscribers.size() > 1) {
Collections.sort(subscribers);
}
return subscribers;
}
public boolean unsubscribe(String virtualUser, String subscriberEmail, String code) {
Element watchedInvitation = getInvitationElementByVirtualUser(virtualUser);
if (watchedInvitation == null) {
return false;
}
Element subscriberListElem = XmlUtil.getChildByTagName(watchedInvitation, "subscriberList");
if (subscriberListElem == null) {
return false;
}
NodeList subscriberList = subscriberListElem.getElementsByTagName("subscriber");
if (subscriberList != null) {
int listLength = subscriberList.getLength();
for (int i = 0; i < listLength; i++) {
Element subscriberElement = (Element) subscriberList.item(i);
String email = XmlUtil.getChildText(subscriberElement, "email");
if ((email != null) && email.equals(subscriberEmail)) {
String subscriptionCode = XmlUtil.getChildText(subscriberElement, "code");
if ((subscriptionCode != null) && subscriptionCode.equals(code)) {
subscriberListElem.removeChild(subscriberElement);
if (listLength == 1) {
watchedInvitation.removeChild(subscriberListElem);
}
changed = true;
return true;
} else {
Logger.getLogger(getClass())
.warn(
"unsubscribe attempt with invalid code, virtualUser="******" email="
+ subscriberEmail
+ " code="
+ code);
}
}
}
}
return false;
}
private void checkSubscriberNotifications() {
if (Logger.getLogger(getClass()).isDebugEnabled()) {
Logger.getLogger(getClass()).debug("checking subscriber notifications");
}
NodeList invitationList = invitationRoot.getElementsByTagName("invitation");
if (invitationList == null) {
return;
}
int listLength = invitationList.getLength();
for (int i = 0; i < listLength; i++) {
Element invitationElem = (Element) invitationList.item(i);
Element notifyElem = XmlUtil.getChildByTagName(invitationElem, "notifySubscribers");
if (notifyElem != null) {
Element changedElem = XmlUtil.getChildByTagName(notifyElem, "changed");
if (changedElem != null) {
long lastChangeTime = 0;
try {
lastChangeTime = Long.parseLong(XmlUtil.getElementText(changedElem));
} catch (NumberFormatException numEx) {
Logger.getLogger(getClass()).error("invalid change time", numEx);
}
if (System.currentTimeMillis() - lastChangeTime > NOTIFIY_DELAY_AFTER_CHANGE) {
// wait some time after blog change until subscribers are notified, in case more entries
// will be created soon
long lastNotified = 0;
String lastNotificationTime = XmlUtil.getChildText(notifyElem, "lastNotified");
if (!CommonUtils.isEmpty(lastNotificationTime)) {
try {
lastNotified = Long.parseLong(lastNotificationTime);
} catch (NumberFormatException numEx) {
Logger.getLogger(getClass())
.error("invalid lastNotified time: " + lastNotificationTime);
}
}
if (System.currentTimeMillis() - lastNotified > MIN_SUBSCRIBER_NOTIFICATION_INTERVAL) {
Element subscriberListElem =
XmlUtil.getChildByTagName(invitationElem, "subscriberList");
if (subscriberListElem != null) {
NodeList subscriberList = subscriberListElem.getElementsByTagName("subscriber");
if (subscriberList != null) {
String blogPath = XmlUtil.getChildText(invitationElem, "path");
String virtualUser = XmlUtil.getChildText(invitationElem, "virtualUser");
String blogTitle = MetaInfManager.getInstance().getDescription(blogPath, ".");
if (CommonUtils.isEmpty(blogTitle)) {
blogTitle = virtualUser;
}
String blogAccessCode = invitationElem.getAttribute("accessCode");
int subscriberListLength = subscriberList.getLength();
for (int k = 0; k < subscriberListLength; k++) {
Element subscriberElement = (Element) subscriberList.item(k);
String email = XmlUtil.getChildText(subscriberElement, "email");
String code = XmlUtil.getChildText(subscriberElement, "code");
sendSubscriberNotification(email, code, blogTitle, virtualUser, blogAccessCode);
}
}
}
notifyElem.removeChild(changedElem);
XmlUtil.setChildText(
notifyElem, "lastNotified", Long.toString(System.currentTimeMillis()));
changed = true;
}
}
}
}
}
}