@Override
public void run() {
long startTime = 0;
while (!sqlt.isInterrupted()) {
if (mode.equals("tower4clouds")) {
if (System.currentTimeMillis() - startTime > 10000) {
metricList = new ArrayList<Metric>();
List<Integer> periodList = new ArrayList<Integer>();
for (String metric : getProvidedMetrics()) {
try {
InternalComponent resource =
new InternalComponent(
Config.getInstance().getInternalComponentType(),
Config.getInstance().getInternalComponentId());
if (dcAgent.shouldMonitor(resource, metric)) {
Map<String, String> parameters = dcAgent.getParameters(resource, metric);
Metric temp = new Metric();
temp.setMetricName(metric);
periodList.add(Integer.valueOf(parameters.get("samplingTime")) * 1000);
temp.setSamplingProb(Double.valueOf(parameters.get("samplingProbability")));
metricList.add(temp);
}
} catch (NumberFormatException | ConfigurationException e) {
e.printStackTrace();
}
}
period = Collections.min(periodList);
startTime = System.currentTimeMillis();
}
}
String query = "SHOW GLOBAL STATUS where ";
int numMetrics = 0;
for (Metric metric : metricList) {
if (numMetrics == 0) {
query = query + "Variable_name like '" + metric.getMetricName() + "'";
} else {
query = query + "or Variable_name like '" + metric.getMetricName() + "'";
}
numMetrics++;
}
Long t0 = System.currentTimeMillis();
// TO FIX adding delay
PreparedStatement ps = null;
ResultSet rs;
try {
try {
ps = conDb.prepareStatement(query);
} catch (SQLException e1) {
e1.printStackTrace();
}
rs = ps.executeQuery(query);
while (rs.next()) {
String variableName = rs.getString("Variable_name");
String value = rs.getString("Value");
try {
for (Metric metric : metricList) {
if (metric.getMetricName().equals(variableName)) {
if (Math.random() < metric.getSamplingProb()) {
logger.info("Sending datum: {} {} {}", value, variableName, monitoredTarget);
dcAgent.send(
new InternalComponent(
Config.getInstance().getInternalComponentType(),
Config.getInstance().getInternalComponentId()),
variableName,
Double.valueOf(value));
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
// sendMonitoringDatum(Double.valueOf(value), ResourceFactory.createResource(MC.getURI() +
// variableName), monitoredResourceURL, monitoredResource);
// System.out.println(variableName + ": " + value);
}
} catch (SQLException ex) {
System.out.println("Error execute query" + ex);
ex.printStackTrace();
System.exit(0);
}
Long t1 = System.currentTimeMillis();
try {
// correct sleep time to ensure periodic sampling
Thread.sleep(Math.max(period * 1000 - (t1 - t0), 0));
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
break;
}
}
}
