@Override
protected Void doInBackground(final Integer... args) {
final int textNo = args[0];
final TextInfo textInfo = mTextCache.getText(textNo);
final Text text;
try {
text = mKom.getSession().getText(textNo);
} catch (final Exception e) {
e.printStackTrace();
return null;
}
final List<Integer> texts = new ArrayList<Integer>();
for (int comment : text.getComments()) {
Log.i(TAG, "CacheRelevantTask " + comment + " is a comment to " + textNo);
texts.add(comment);
}
for (int footnote : text.getFootnotes()) {
Log.i(TAG, "CacheRelevantTask " + footnote + " is a footnote to " + textNo);
texts.add(footnote);
}
for (int commented : text.getCommented()) {
Log.i(TAG, "CacheRelevantTask " + commented + " is a parent to " + textNo);
texts.add(commented);
}
final Matcher m = TEXT_LINK_FINDER.matcher(textInfo.getBody());
while (m.find()) {
final String str = textInfo.getBody().substring(m.start(), m.end());
try {
final int linkNo = Integer.valueOf(str);
Log.i(TAG, "CacheRelevantTask, text number " + linkNo + " found in body of " + textNo);
texts.add(linkNo);
} catch (final NumberFormatException e) {
Log.i(
TAG,
"CacheRelevantTask, unable to parse " + str + " as text number in body of " + textNo);
}
}
for (final int t : texts) {
mTextCache.getText(t);
}
return null;
}
TextInfo getNextUnreadText(final boolean cacheRelevant) {
// If mPrefetchRunner is null, we have already reached the end of the queue
if (mPrefetchRunner == null) {
return TextInfo.createText(mKom.getBaseContext(), TextInfo.ALL_READ);
}
// Get the next unread text from the queue
final TextConf tc;
try {
tc = mUnreadQueue.take();
} catch (final InterruptedException e) {
return TextInfo.createText(mKom.getBaseContext(), TextInfo.ERROR_FETCHING_TEXT);
}
// This is how the prefetcher marks that there are no more unread texts. mPrefetchRunner should
// be finished,
// so we can delete the reference to it.
if (tc.textNo < 0) {
mPrefetchRunner = null;
return TextInfo.createText(mKom.getBaseContext(), TextInfo.ALL_READ);
}
// If the text is already locally marked as read, get the next one instead
if (mKom.isLocalRead(tc.textNo)) {
return getNextUnreadText(cacheRelevant);
}
// Switch conference name
mKom.setConferenceName(mKom.getConferenceName(tc.confNo));
// Retrieve the text
final TextInfo text = mTextCache.getText(tc.textNo);
// Cache relevant info both for this text and for the next in the queue (if available)
if (cacheRelevant) {
doCacheRelevant(tc.textNo);
final TextConf tcNext = mUnreadQueue.peek();
if (tcNext != null) {
doCacheRelevant(tcNext.textNo);
}
}
return text;
}