private Avail getAvailFromResponse(final ModelNode response, final AvailDMRTask task) {
Avail avail;
final ModelNode result = JBossASClient.getResults(response);
final ModelNode valueNode = (task.getSubref() == null) ? result : result.get(task.getSubref());
String value = null;
if (valueNode.getType() != ModelType.UNDEFINED) {
value = valueNode.asString();
}
if (value == null) {
value = "";
}
String upRegex = task.getUpRegex();
if (upRegex == null) {
try {
Integer valueAsNumber = new Integer(value);
avail = (valueAsNumber.intValue() == 0) ? Avail.DOWN : Avail.UP;
} catch (Exception e) {
avail = (value.matches("(?i)(UP|OK)")) ? Avail.UP : Avail.DOWN;
}
} else {
avail = (value.matches(upRegex)) ? Avail.UP : Avail.DOWN;
}
return avail;
}
@Override
public void run() {
int operationIndex = -1;
try (JBossASClient client = new JBossASClient(mccFactory.createClient())) {
for (ModelNode operation : this.operations) {
operationIndex++; // move to the one we are working on - this is important in the catch
// block
// execute request
final Timer.Context requestContext = diagnostics.getDMRRequestTimer().time();
final ModelNode response = client.execute(operation);
final long durationNanos = requestContext.stop();
final long durationMs = TimeUnit.MILLISECONDS.convert(durationNanos, TimeUnit.NANOSECONDS);
final AvailDMRTask task = (AvailDMRTask) group.getTask(operationIndex);
if (JBossASClient.isSuccess(response)) {
if (durationMs > group.getInterval().millis()) {
diagnostics.getDMRDelayedRate().mark(1);
}
// deconstruct model node
Avail avail;
if (task.getAttribute() == null) {
// step operation didn't read any attribute, it just read the resource to see if it
// exists
avail = Avail.UP;
} else {
// operation read attribute; need to see what avail that attrib value corresponds to
final ModelNode result = JBossASClient.getResults(response);
if (result.getType() != ModelType.UNDEFINED) {
if (result.getType() == ModelType.LIST) {
// a avail request that asked to aggregate avail across potentially multiple
// resources
LOG.tracef("Task [%s] resulted in aggregated avail: %s", task, result);
Avail aggregate = null;
List<ModelNode> listNodes = result.asList();
for (ModelNode listNode : listNodes) {
if (JBossASClient.isSuccess(listNode)) {
avail = getAvailFromResponse(listNode, task);
// If we don't know the avail yet, set it to the first avail result we get.
// Otherwise, if the aggregate is down, it stays down (we don't have the
// concept of MIXED). The aggregate stays as it was unless the new avail
// is down in which case aggregate goes down.
if (aggregate == null) {
aggregate = avail;
} else {
aggregate = (avail == Avail.DOWN) ? Avail.DOWN : aggregate;
}
} else {
// a resource failed to report avail but keep going and aggregate the others
this.diagnostics.getDMRErrorRate().mark(1);
LOG.debugf(
"Failed to fully aggregate avail for task [%s]: %s ", task, listNode);
}
}
completionHandler.onCompleted(new AvailDataPoint(task, aggregate));
} else {
avail = getAvailFromResponse(response, task);
completionHandler.onCompleted(new AvailDataPoint(task, avail));
}
}
}
} else {
if (task.getAttribute() == null) {
// operation didn't read any attribute, it just read the resource to see if it exists
completionHandler.onCompleted(new AvailDataPoint(task, Avail.DOWN));
} else {
this.diagnostics.getDMRErrorRate().mark(1);
String err = JBossASClient.getFailureDescription(response);
completionHandler.onFailed(new RuntimeException(err));
// we are going to artifically mark the availabilities UNKNOWN since we really don't
// know
completionHandler.onCompleted(new AvailDataPoint(task, Avail.UNKNOWN));
}
}
}
} catch (Throwable e) {
this.diagnostics.getDMRErrorRate().mark(1);
completionHandler.onFailed(e);
// we are going to artifically mark the availabilities UNKNOWN since we really don't know
// only mark the ones we didn't get to yet and the one we are currently worked on
for (int i = operationIndex; i < this.group.size(); i++) {
Task task = this.group.getTask(i);
completionHandler.onCompleted(new AvailDataPoint(task, Avail.UNKNOWN));
}
}
}