private Set<DiscoveredResourceDetails> createDiscoveredResource(
ResourceDiscoveryContext<JMXComponent<?>> ctx,
Configuration pluginConfiguration,
String objectName) {
boolean trace = log.isTraceEnabled();
JMXComponent<?> parentComponent = ctx.getParentResourceComponent();
EmsConnection conn = parentComponent.getEmsConnection();
if (conn != null) {
if (trace) log.trace("Connection to ems server established: " + conn);
// Run query for manager_object
ObjectNameQueryUtility queryUtility = new ObjectNameQueryUtility(objectName);
List<EmsBean> beans = conn.queryBeans(queryUtility.getTranslatedQuery());
if (trace)
log.trace("Querying [" + queryUtility.getTranslatedQuery() + "] returned beans: " + beans);
Set<DiscoveredResourceDetails> discoveredResources = new HashSet<DiscoveredResourceDetails>();
for (EmsBean bean : beans) {
// Filter out spurious beans
if (CacheManagerComponent.isCacheManagerComponent(bean)) {
String managerName = bean.getBeanName().getCanonicalName();
String resourceName = bean.getAttribute("Name").getValue().toString();
String version = bean.getAttribute("Version").getValue().toString();
/* A discovered resource must have a unique key, that must stay the same when the resource is discovered the next time */
if (trace)
log.trace(
"Add resource with version '" + version + "' and type " + ctx.getResourceType());
DiscoveredResourceDetails detail =
new DiscoveredResourceDetails(
ctx.getResourceType(), // Resource type
resourceName, // Resource key
resourceName, // Resource name
version, // Resource version
"A cache manager within Infinispan", // Description
pluginConfiguration, // Plugin config
null // Process info from a process scan
);
if (log.isInfoEnabled()) {
log.info(
String.format(
"Discovered Infinispan instance with key %s and name %s",
resourceName, managerName));
}
discoveredResources.add(detail);
} else {
log.warn(
String.format(
"MBeanServer returned spurious object %s",
bean.getBeanName().getCanonicalName()));
}
}
return discoveredResources;
} else {
log.debug("Unable to establish connection");
return null;
}
}
/**
* Return availability of this resource
*
* @see org.rhq.core.pluginapi.inventory.ResourceComponent#getAvailability()
*/
@Override
public AvailabilityType getAvailability() {
boolean trace = log.isTraceEnabled();
EmsConnection conn = getConnection();
try {
conn.refresh();
EmsBean bean = queryCacheBean();
if (bean != null && bean.getAttribute("CacheStatus").getValue().equals("RUNNING")) {
bean.refreshAttributes();
if (trace)
log.trace(
"Cache "
+ cacheName
+ " within "
+ cacheManagerName
+ " cache manager is running and attributes could be refreshed, so it's up.");
return AvailabilityType.UP;
}
if (trace)
log.trace(
"Cache status for "
+ cacheName
+ " within "
+ cacheManagerName
+ " cache manager is anything other than running, so it's down.");
return AvailabilityType.DOWN;
} catch (Exception e) {
if (trace)
log.trace("There was an exception checking availability, so cache status is down.", e);
return AvailabilityType.DOWN;
}
}
/**
* Gather measurement data
*
* @see
* org.rhq.core.pluginapi.measurement.MeasurementFacet#getValues(org.rhq.core.domain.measurement.MeasurementReport,
* java.util.Set)
*/
@Override
public void getValues(MeasurementReport report, Set<MeasurementScheduleRequest> metrics) {
boolean trace = log.isTraceEnabled();
if (trace) log.trace("Get values metrics");
for (MeasurementScheduleRequest req : metrics) {
if (trace) log.trace("Inspect metric " + req);
String metric = req.getName();
try {
EmsBean bean = queryComponentBean(metric);
if (bean != null) {
if (trace) log.trace("Retrieved mbean with name " + bean.getBeanName());
bean.refreshAttributes();
String attName = metric.substring(metric.indexOf(".") + 1);
EmsAttribute att = bean.getAttribute(attName);
// Attribute values are of various data types
if (att != null) {
Object o = att.getValue();
Class<?> attrType = att.getTypeClass();
DataType type = req.getDataType();
if (type == DataType.MEASUREMENT) {
if (o != null) {
MeasurementDataNumeric res = constructNumericMeasure(attrType, o, req);
if (res != null) report.addData(res);
} else {
if (log.isDebugEnabled())
log.debug("Metric (" + req.getName() + ") has null value, do not add to report");
}
} else if (type == DataType.TRAIT) {
String value = (String) o;
if (trace) log.trace("Metric (" + req.getName() + ") is trait with value " + value);
MeasurementDataTrait res = new MeasurementDataTrait(req, value);
report.addData(res);
}
} else {
if (log.isWarnEnabled()) {
log.warn("Attribute " + attName + " not found");
}
}
}
} catch (Exception e) {
if (log.isWarnEnabled()) {
log.warn("getValues failed for " + metric, e);
}
}
}
}