/**
* Fetches and parses the message envelopes for the supplied messages. The idea is to have this be
* recursive so that we do a series of medium calls instead of one large massive call or a large
* number of smaller calls. Call it a happy balance
*/
private void fetchEnvelope(
List<WebDavMessage> startMessages, MessageRetrievalListener<WebDavMessage> listener)
throws MessagingException {
Map<String, String> headers = new HashMap<String, String>();
String messageBody;
String[] uids;
List<WebDavMessage> messages = new ArrayList<WebDavMessage>(10);
if (startMessages == null || startMessages.isEmpty()) {
return;
}
if (startMessages.size() > 10) {
List<WebDavMessage> newMessages = new ArrayList<WebDavMessage>(startMessages.size() - 10);
for (int i = 0, count = startMessages.size(); i < count; i++) {
if (i < 10) {
messages.add(i, startMessages.get(i));
} else {
newMessages.add(i - 10, startMessages.get(i));
}
}
fetchEnvelope(newMessages, listener);
} else {
messages.addAll(startMessages);
}
uids = new String[messages.size()];
for (int i = 0, count = messages.size(); i < count; i++) {
uids[i] = messages.get(i).getUid();
}
messageBody = store.getMessageEnvelopeXml(uids);
headers.put("Brief", "t");
DataSet dataset = store.processRequest(this.mFolderUrl, "SEARCH", messageBody, headers);
Map<String, ParsedMessageEnvelope> envelopes = dataset.getMessageEnvelopes();
int count = messages.size();
for (int i = messages.size() - 1; i >= 0; i--) {
WebDavMessage message = messages.get(i);
if (listener != null) {
listener.messageStarted(messages.get(i).getUid(), i, count);
}
ParsedMessageEnvelope envelope = envelopes.get(message.getUid());
if (envelope != null) {
message.setNewHeaders(envelope);
message.setFlagInternal(Flag.SEEN, envelope.getReadStatus());
} else {
Log.e(LOG_TAG, "Asked to get metadata for a non-existent message: " + message.getUid());
}
if (listener != null) {
listener.messageFinished(messages.get(i), i, count);
}
}
}
/**
* Fetches and sets the message flags for the supplied messages. The idea is to have this be
* recursive so that we do a series of medium calls instead of one large massive call or a large
* number of smaller calls.
*/
private void fetchFlags(
List<WebDavMessage> startMessages, MessageRetrievalListener<WebDavMessage> listener)
throws MessagingException {
HashMap<String, String> headers = new HashMap<String, String>();
String messageBody;
List<Message> messages = new ArrayList<Message>(20);
String[] uids;
if (startMessages == null || startMessages.isEmpty()) {
return;
}
if (startMessages.size() > 20) {
List<WebDavMessage> newMessages = new ArrayList<WebDavMessage>(startMessages.size() - 20);
for (int i = 0, count = startMessages.size(); i < count; i++) {
if (i < 20) {
messages.add(startMessages.get(i));
} else {
newMessages.add(startMessages.get(i));
}
}
fetchFlags(newMessages, listener);
} else {
messages.addAll(startMessages);
}
uids = new String[messages.size()];
for (int i = 0, count = messages.size(); i < count; i++) {
uids[i] = messages.get(i).getUid();
}
messageBody = store.getMessageFlagsXml(uids);
headers.put("Brief", "t");
DataSet dataset = store.processRequest(this.mFolderUrl, "SEARCH", messageBody, headers);
if (dataset == null) {
throw new MessagingException("Data Set from request was null");
}
Map<String, Boolean> uidToReadStatus = dataset.getUidToRead();
for (int i = 0, count = messages.size(); i < count; i++) {
if (!(messages.get(i) instanceof WebDavMessage)) {
throw new MessagingException("WebDavStore fetch called with non-WebDavMessage");
}
WebDavMessage wdMessage = (WebDavMessage) messages.get(i);
try {
wdMessage.setFlagInternal(Flag.SEEN, uidToReadStatus.get(wdMessage.getUid()));
} catch (NullPointerException e) {
Log.v(
LOG_TAG,
"Under some weird circumstances, setting the read status when syncing from webdav threw an NPE. Skipping.");
}
}
}
