/** @param _parameter */
public Return execute(final Parameter _parameter) throws EFapsException {
Return ret = new Return();
Map properties = (Map) _parameter.get(ParameterValues.PROPERTIES);
String types = (String) properties.get("Types");
boolean expandChildTypes = "true".equals((String) properties.get("ExpandChildTypes"));
if (LOG.isDebugEnabled()) {
LOG.debug("types=" + types);
}
SearchQuery query = new SearchQuery();
query.setQueryTypes(types);
query.setExpandChildTypes(expandChildTypes);
query.addSelect("OID");
query.execute();
List<List<Instance>> list = new ArrayList<List<Instance>>();
while (query.next()) {
List<Instance> instances = new ArrayList<Instance>(1);
instances.add(new Instance((String) query.get("OID")));
list.add(instances);
}
ret.put(ReturnValues.VALUES, list);
return ret;
}
/**
* Reads all StopWords which are linked to an <b>Lucene_Analyzer</b> from the Database and returns
* a Set of Stopwords
*
* @param _AnalyzerID the ID of an Lucene_Analyzer
* @return Set of Stopwords
*/
public static Set getStopWords(String _AnalyzerID) {
Set<String> StopWords = new HashSet<String>();
SearchQuery query = new SearchQuery();
try {
query.setQueryTypes("Lucene_StopWords");
query.addSelect("Word");
query.addWhereExprEqValue("Analyzer", _AnalyzerID);
query.execute();
while (query.next()) {
StopWords.add(query.get("Word").toString());
}
return StopWords;
} catch (EFapsException e) {
LOG.error("getStopWords(String)", e);
}
return null;
}
/**
* Searches for an existing Stopword with the parameters as a filter and returns the ID of the
* StopWord
*
* @param _AnalyzerID ID of a Lucene_Analyzer
* @param _Word StopWord
* @return ID if exits, else null
*/
private static String getIDofExistingStopWord(String _AnalyzerID, String _Word) {
SearchQuery query = new SearchQuery();
try {
query.setQueryTypes("Lucene_StopWords");
query.addSelect("ID");
query.addWhereExprEqValue("Word", _Word);
query.addWhereExprEqValue("Analyzer", _AnalyzerID);
query.execute();
if (query.next()) {
return query.get("ID").toString();
}
} catch (EFapsException e) {
LOG.error("getIDofExistingStopWord(String, String)", e);
}
return null;
}