/**
* get history from database
*
* @param name history name
* @param maxHistoryLength max. length of history or HISTORY_LENGTH_INFINTE
* @param direction history direction order
* @return list with history data
*/
public static LinkedList<String> getHistory(
String name, int maxHistoryLength, Directions direction) {
LinkedList<String> historyList = null;
HistoryDatabase historyDatabase = null;
try {
// open database
historyDatabase = openStringHistoryDatabase(name, maxHistoryLength, direction);
// get history
historyList = historyDatabase.getHistory();
// close database
historyDatabase.close();
historyDatabase = null;
} catch (SQLException exception) {
Onzen.printWarning(
"Cannot load history '%s' from database (error: %s)", name, exception.getMessage());
return new LinkedList<String>();
} finally {
if (historyDatabase != null) historyDatabase.close();
}
return historyList;
}
/**
* put history into database
*
* @param name history name
* @param historyList history list
* @param maxHistoryLength max. length of history or HISTORY_LENGTH_INFINTE
* @param direction history direction order
* @param addEntry entry to add or null
*/
public static void setHistory(
String name,
LinkedList<String> historyList,
int maxHistoryLength,
Directions direction,
String addEntry) {
HistoryDatabase historyDatabase = null;
try {
// open database
historyDatabase = openStringHistoryDatabase(name, maxHistoryLength, direction);
// set history
historyDatabase.setHistory(historyList);
// add entry
if ((addEntry != null) && !addEntry.isEmpty())
add(historyList, maxHistoryLength, direction, addEntry);
// close database
historyDatabase.close();
historyDatabase = null;
} catch (SQLException exception) {
Onzen.printWarning(
"Cannot save history '%s' into database (error: %s)", name, exception.getMessage());
return;
} finally {
if (historyDatabase != null) historyDatabase.close();
}
}
