private static void addNamesFromStatistics(
Set<String> names,
VariableKind variableKind,
@Nullable String propertyName,
@Nullable PsiType type) {
String[] allNames =
JavaStatisticsManager.getAllVariableNamesUsed(variableKind, propertyName, type);
int maxFrequency = 0;
for (String name : allNames) {
int count =
JavaStatisticsManager.getVariableNameUseCount(name, variableKind, propertyName, type);
maxFrequency = Math.max(maxFrequency, count);
}
int frequencyLimit = Math.max(5, maxFrequency / 2);
for (String name : allNames) {
if (names.contains(name)) {
continue;
}
int count =
JavaStatisticsManager.getVariableNameUseCount(name, variableKind, propertyName, type);
if (LOG.isDebugEnabled()) {
LOG.debug("new name:" + name + " count:" + count);
LOG.debug("frequencyLimit:" + frequencyLimit);
}
if (count >= frequencyLimit) {
names.add(name);
}
}
if (propertyName != null && type != null) {
addNamesFromStatistics(names, variableKind, propertyName, null);
addNamesFromStatistics(names, variableKind, null, type);
}
}
private static void sortVariableNameSuggestions(
String[] names,
final VariableKind variableKind,
@Nullable final String propertyName,
@Nullable final PsiType type) {
if (names.length <= 1) {
return;
}
if (LOG.isDebugEnabled()) {
LOG.debug("sorting names:" + variableKind);
if (propertyName != null) {
LOG.debug("propertyName:" + propertyName);
}
if (type != null) {
LOG.debug("type:" + type);
}
for (String name : names) {
int count =
JavaStatisticsManager.getVariableNameUseCount(name, variableKind, propertyName, type);
LOG.debug(name + " : " + count);
}
}
Comparator<String> comparator =
new Comparator<String>() {
@Override
public int compare(String s1, String s2) {
int count1 =
JavaStatisticsManager.getVariableNameUseCount(s1, variableKind, propertyName, type);
int count2 =
JavaStatisticsManager.getVariableNameUseCount(s2, variableKind, propertyName, type);
return count2 - count1;
}
};
Arrays.sort(names, comparator);
}