/**
* @param params configuration params for initialization. Should include:
* <li>table_file - path to the file that contains the rules, in table format. Can also be a
* URL.
* <li>table_separator - pattern of column-separator, e.g. "->".
* <li>part_of_speech - canonical name of the part-of-speech for this rule-base. For possible
* values, see {@link SimplerCanonicalPosTag}.
* <li>relation_name - name of relation to put in rules (the same for all rules).
* <li>minimum_seconds_between_loads (int) - The minimum number of seconds between each
* consecutive loads from the file.
* <li>(NOTE: The params.getModuleName() is used as the resource_name).
*/
public OnlineFileBasedLexicalResource(ConfigurationParams params)
throws UnsupportedPosTagStringException, IOException, ConfigurationException {
super(
null,
params.getEnum(SimplerCanonicalPosTag.class, "part_of_speech"),
params.getModuleName(),
params.getString("relation_name"));
this.file = params.getString("file");
this.separator = params.getString("separator");
this.minimumSecondsBetweenLoads = params.getInt("minimum_seconds_between_loads");
this.map = ValueSetMapFromStringCreator.mapFromConfigurationParams(params);
}
/**
* @return the map, re-loaded from the file.
* @throws IOException
*/
@Override
public synchronized ValueSetMap<String, String> getMap() {
long currentTimeInSeconds = System.currentTimeMillis() / 1000;
if (currentTimeInSeconds - lastLoadTimeInSeconds > minimumSecondsBetweenLoads) {
try {
this.map =
ValueSetMapFromStringCreator.mapFromTwoColumnsText(
FileUtils.loadFileOrUrlToList(this.file), this.separator);
lastLoadTimeInSeconds = currentTimeInSeconds;
} catch (IOException e) {
// If there was an IO exception while reading the file, then we cannot re-read the file,
// so we just use the existing file.
}
}
return this.map;
}
