add query for SupportedExternalApis

Author: Jami Cogswell

java/ql/src/Telemetry/SupportedExternalApis.ql

@@ -0,0 +1,24 @@
+/**
+ * @name Usage of supported APIs coming from external libraries
+ * @description A list of supported 3rd party APIs used in the codebase. Excludes test and generated code.
+ * @kind metric
+ * @tags summary telemetry
+ * @id java/telemetry/supported-external-api
+ */
+
+import java
+import semmle.code.java.dataflow.internal.FlowSummaryImpl as FlowSummaryImpl
+import semmle.code.java.dataflow.internal.NegativeSummary
+import ExternalApi
+
+private predicate relevant(ExternalApi api) {
+  not api.isUninteresting() and
+  (
+    api.isSupported() or
+    api = any(FlowSummaryImpl::Public::NegativeSummarizedCallable nsc).asCallable()
+  )
+}
+
+from string apiName, int usages
+where Results<relevant/1>::restrict(apiName, usages)
+select apiName, usages order by usages desc