[Task] Add GraphQL filter ability for node name from set

[andrewazores]

          https://github.com/cryostatio/cryostat/blob/9bcda3f42ad05349a38d3767f33f11042aa767d2/src/main/resources/types.graphqls#L19

https://github.com/cryostatio/cryostat/blob/9bcda3f42ad05349a38d3767f33f11042aa767d2/src/main/java/io/cryostat/net/web/http/api/v2/graph/FilterInput.java#L69

https://github.com/cryostatio/cryostat/blob/9bcda3f42ad05349a38d3767f33f11042aa767d2/src/main/java/io/cryostat/net/web/http/api/v2/graph/TargetNodesFetcher.java#L108 / https://github.com/cryostatio/cryostat/blob/9bcda3f42ad05349a38d3767f33f11042aa767d2/src/main/java/io/cryostat/net/web/http/api/v2/graph/TargetNodesFetcher.java#L115

https://github.com/cryostatio/cryostat/blob/9bcda3f42ad05349a38d3767f33f11042aa767d2/src/main/java/io/cryostat/net/web/http/api/v2/graph/ActiveRecordingsFetcher.java#L97 / https://github.com/cryostatio/cryostat/blob/9bcda3f42ad05349a38d3767f33f11042aa767d2/src/main/java/io/cryostat/net/web/http/api/v2/graph/ActiveRecordingsFetcher.java#L104

I think this functionality can be retrofitted into the existing system pretty cleanly actually:

diff --git a/src/main/java/io/cryostat/net/web/http/api/v2/graph/FilterInput.java b/src/main/java/io/cryostat/net/web/http/api/v2/graph/FilterInput.java
index ee783a7c..a845453d 100644
--- a/src/main/java/io/cryostat/net/web/http/api/v2/graph/FilterInput.java
+++ b/src/main/java/io/cryostat/net/web/http/api/v2/graph/FilterInput.java
@@ -67,6 +67,7 @@ class FilterInput {
     enum Key {
         ID("id"),
         NAME("name"),
+        NAMES("names"),
         LABELS("labels"),
         ANNOTATIONS("annotations"),
         SOURCE_TARGET("sourceTarget"),
diff --git a/src/main/java/io/cryostat/net/web/http/api/v2/graph/TargetNodesFetcher.java b/src/main/java/io/cryostat/net/web/http/api/v2/graph/TargetNodesFetcher.java
index 2e6df720..a966d1bd 100644
--- a/src/main/java/io/cryostat/net/web/http/api/v2/graph/TargetNodesFetcher.java
+++ b/src/main/java/io/cryostat/net/web/http/api/v2/graph/TargetNodesFetcher.java
@@ -112,6 +112,16 @@ class TargetNodesFetcher extends AbstractPermissionedDataFetcher<List<TargetNode
                             .filter(n -> Objects.equals(n.getName(), nodeName))
                             .collect(Collectors.toList());
         }
+        if (filter.contains(FilterInput.Key.NAMES)) {
+            List<String> names = filter.get(FilterInput.Key.NAMES);
+            for (String name : names) {
+                result =
+                        result.stream()
+                                .filter(n -> LabelSelectorMatcher.parse(name).test(Map.of("name",
+                                                n.getName())))
+                                .collect(Collectors.toList());
+            }
+        }
         if (filter.contains(FilterInput.Key.LABELS)) {
             List<String> labels = filter.get(FilterInput.Key.LABELS);
             for (String label : labels) {
diff --git a/src/main/resources/types.graphqls b/src/main/resources/types.graphqls
index 410efb66..5b15af3d 100644
--- a/src/main/resources/types.graphqls
+++ b/src/main/resources/types.graphqls
@@ -17,6 +17,7 @@ input EnvironmentNodeFilterInput {
 input TargetNodesFilterInput {
     id: Int
     name: String
+    names: [String]
     labels: [String]
     annotations: [String]
 }

haven't tested this, just an idea. This would just allow for a single query to match a given node if its name is not just equal to a specific value, but if its name is a member of a given set. Then clients can make much more flexible requests targeting sets of nodes and doing further queries on those all server-side. Thoughts? If this makes sense I will go ahead and work on a PR.

Originally posted by @andrewazores in cryostatio/cryostat-web#920 (comment)