Merge pull request #23273 from vespa-engine/bjorncs/application-status-handler

Bjorncs/application status handler

1 files changed, 32 insertions, 0 deletions

diff --git a/container-search/src/main/java/com/yahoo/search/handler/observability/SearchStatusExtension.java b/container-search/src/main/java/com/yahoo/search/handler/observability/SearchStatusExtension.java
new file mode 100644
index 00000000000..836bb1b8354
--- /dev/null
+++ b/container-search/src/main/java/com/yahoo/search/handler/observability/SearchStatusExtension.java
@@ -0,0 +1,32 @@
+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.search.handler.observability;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.yahoo.container.handler.observability.ApplicationStatusHandler;
+import com.yahoo.jdisc.handler.RequestHandler;
+import com.yahoo.search.handler.SearchHandler;
+import com.yahoo.search.searchchain.SearchChainRegistry;
+
+import java.util.Map;
+
+/**
+ * @author bjorncs
+ */
+public class SearchStatusExtension implements ApplicationStatusHandler.Extension {
+
+    @Override
+    public Map<String, ? extends JsonNode> produceExtraFields(ApplicationStatusHandler statusHandler) {
+        return Map.of("searchChains", renderSearchChains(statusHandler));
+    }
+
+    private static JsonNode renderSearchChains(ApplicationStatusHandler statusHandler) {
+        for (RequestHandler h : statusHandler.requestHandlers()) {
+            if (h instanceof SearchHandler) {
+                SearchChainRegistry scReg = ((SearchHandler) h).getSearchChainRegistry();
+                return ApplicationStatusHandler.renderChains(scReg);
+            }
+        }
+        return statusHandler.jsonMapper().createObjectNode();
+    }
+
+}