/**
* Retrieves the access token used for interacting with Twitter.
*
* @return
*/
public static AccessToken getAccessToken() {
// Try to grab the token from the cache.
StoredAccessToken storedToken = (StoredAccessToken) cache.get(ACCESS_TOKEN_KEY);
if (storedToken != null) {
return storedToken.getAccessToken();
}
// Now try to grab it from the datastore
PersistenceManager pm = PMF.get().getPersistenceManager();
Extent<StoredAccessToken> extent = pm.getExtent(StoredAccessToken.class, false);
try {
Iterator<StoredAccessToken> itr = extent.iterator();
storedToken = itr.next();
// If the token was found, cache it and return.
if (storedToken != null) {
cache.put(ACCESS_TOKEN_KEY, storedToken);
return storedToken.getAccessToken();
}
} finally {
extent.closeAll();
pm.close();
}
return null;
}
protected static StorageStats getStorageStats() {
// Try to grab the token from the cache.
StorageStats stats = (StorageStats) cache.get(STORAGE_STATS_KEY);
if (stats != null) {
return stats;
}
// Now try to grab it from the datastore
PersistenceManager pm = PMF.get().getPersistenceManager();
Extent<StorageStats> extent = pm.getExtent(StorageStats.class, false);
try {
Iterator<StorageStats> itr = extent.iterator();
if (itr.hasNext()) {
stats = itr.next();
} else {
stats = new StorageStats();
pm.makePersistent(stats);
}
return stats;
} finally {
extent.closeAll();
pm.close();
cache.put(STORAGE_STATS_KEY, stats);
}
}
public void delete() {
begin();
Extent extent = db().getExtent(JB4.class, false);
Iterator it = extent.iterator();
while (it.hasNext()) {
db().deletePersistent(it.next());
addToCheckSum(5);
}
extent.closeAll();
commit();
}
protected void readExtent(Class<?> clazz) {
Extent<?> extent = db().getExtent(clazz, false);
Iterator<?> itr = extent.iterator();
while (itr.hasNext()) {
Object o = itr.next();
if (o instanceof CheckSummable) {
addToCheckSum(((CheckSummable) o).checkSum());
}
}
extent.closeAll();
}