private void getMonitors(List<Monitor<?>> monitors, MetricFilter filter, Monitor<?> monitor) {
if (monitor instanceof CompositeMonitor<?>) {
for (Monitor<?> m : ((CompositeMonitor<?>) monitor).getMonitors()) {
getMonitors(monitors, filter, m);
}
} else if (filter.matches(monitor.getConfig())) {
monitors.add(monitor);
}
}
/** Create a new metric object and add it to the list. */
private void addMetric(List<Metric> metrics, String name, TagList tags, Object value) {
long now = System.currentTimeMillis();
Number num = asNumber(value);
if (num != null) {
TagList newTags =
counters.matches(MonitorConfig.builder(name).withTags(tags).build())
? SortedTagList.builder().withTags(tags).withTag(DataSourceType.COUNTER).build()
: SortedTagList.builder().withTags(tags).withTag(DataSourceType.GAUGE).build();
Metric m = new Metric(name, newTags, now, num);
metrics.add(m);
}
}
/**
* Query the mbean connection and add all metrics that satisfy the filter to the list {@code
* metrics}.
*/
private void getMetrics(
MBeanServerConnection con, MetricFilter filter, List<Metric> metrics, ObjectName name)
throws JMException, IOException {
// Create tags from the object name
TagList tags = createTagList(name);
MBeanInfo info = con.getMBeanInfo(name);
MBeanAttributeInfo[] attrInfos = info.getAttributes();
// Restrict to attributes that match the filter
List<String> matchingNames = Lists.newArrayList();
for (MBeanAttributeInfo attrInfo : attrInfos) {
String attrName = attrInfo.getName();
if (filter.matches(new MonitorConfig.Builder(attrName).withTags(tags).build())) {
matchingNames.add(attrName);
}
}
List<Attribute> attributeList = safelyLoadAttributes(con, name, matchingNames);
for (Attribute attr : attributeList) {
String attrName = attr.getName();
Object obj = attr.getValue();
if (obj instanceof CompositeData) {
Map<String, Object> values = Maps.newHashMap();
extractValues(null, values, (CompositeData) obj);
for (Map.Entry<String, Object> e : values.entrySet()) {
String key = e.getKey();
TagList newTags =
SortedTagList.builder().withTags(tags).withTag(COMPOSITE_PATH_KEY, key).build();
if (filter.matches(MonitorConfig.builder(attrName).withTags(newTags).build())) {
addMetric(metrics, attrName, newTags, e.getValue());
}
}
} else {
addMetric(metrics, attrName, tags, obj);
}
}
}
/** Marshall the given parameter object, and output to a SdkJsonGenerator */
public void marshall(MetricFilter metricFilter, StructuredJsonGenerator jsonGenerator) {
if (metricFilter == null) {
throw new AmazonClientException("Invalid argument passed to marshall(...)");
}
try {
jsonGenerator.writeStartObject();
if (metricFilter.getFilterName() != null) {
jsonGenerator.writeFieldName("filterName").writeValue(metricFilter.getFilterName());
}
if (metricFilter.getFilterPattern() != null) {
jsonGenerator.writeFieldName("filterPattern").writeValue(metricFilter.getFilterPattern());
}
com.amazonaws.internal.SdkInternalList<MetricTransformation> metricTransformationsList =
(com.amazonaws.internal.SdkInternalList<MetricTransformation>)
metricFilter.getMetricTransformations();
if (!metricTransformationsList.isEmpty() || !metricTransformationsList.isAutoConstruct()) {
jsonGenerator.writeFieldName("metricTransformations");
jsonGenerator.writeStartArray();
for (MetricTransformation metricTransformationsListValue : metricTransformationsList) {
if (metricTransformationsListValue != null) {
MetricTransformationJsonMarshaller.getInstance()
.marshall(metricTransformationsListValue, jsonGenerator);
}
}
jsonGenerator.writeEndArray();
}
if (metricFilter.getCreationTime() != null) {
jsonGenerator.writeFieldName("creationTime").writeValue(metricFilter.getCreationTime());
}
jsonGenerator.writeEndObject();
} catch (Throwable t) {
throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
}
}