@Override
public void calculateMetricValue(Entity entity) {
SortedSet<Version> versions = entity.getVersions();
Version previousVersion = null;
Double firstVersionMetricValue = null;
if (!versions.isEmpty()) {
previousVersion = versions.first();
firstVersionMetricValue = entity.getMetricValue(versions.first(), conventionalMetric);
}
onNewEntity(entity);
for (Version version : versions) {
Double previousMetricValue = entity.getMetricValue(previousVersion, conventionalMetric);
Double currentMetricValue = entity.getMetricValue(version, conventionalMetric);
Double value =
calculateMetricValueForOneVersion(
firstVersionMetricValue, previousMetricValue, currentMetricValue);
entity.addMetricValue(version, this, value);
previousVersion = version;
}
}
@Override
public void acceptEntity(Entity entity, int level) {
List<Rule> rules = entityRuleMap.get(entity.getClass());
if (rules != null) {
SortedSet<Version> versions = entity.getVersions();
for (Version version : versions) {
for (Rule rule : rules) {
Bindings bindings = createBindings(entity, version);
Detection detection = createOrRetrieveDetection(rule);
try {
Boolean detected = (Boolean) engine.eval(rule.getExpression(), bindings);
if (detected) detection.addEntity(version, entity);
} catch (ScriptException e) {
errors.add(new RuleEvaluationError(version, entity, rule, e));
}
}
}
}
}
private Bindings createBindings(Entity entity, Version version) {
Bindings bindings = engine.createBindings();
Set<Metric> metrics = entity.getMetrics();
for (Metric metric : metrics) {
Double metricValue = entity.getMetricValue(version, metric);
bindings.put(metric.getNickname(), metricValue);
}
return bindings;
}