SOLR-16462: Create v2 equivalents for core-level snapshot CRUD functionality (#1126)

LISTSNAPSHOT, CREATESNAPSHOT, and DELETESNAPSHOT now have v2 equivalent APIs available at `GET /api/cores/coreName/snapshots`, `POST /api/cores/coreName/snapshots/snapshotName`, and `DELETE /api/cores/coreName/snapshots/snapshotName`, respectively.

While in the code, this commit also fixes a bug in the response format of the v1 LISTSNAPSHOT API.

Co-authored-by: Jason Gerlowski <[email protected]>

Author: jdurham2843

solr/CHANGES.txt

@@ -148,6 +148,10 @@ Improvements
 
 * SOLR-16665: The base docker image has been upgraded from Ubuntu 20 (Focal) to Ubuntu 22 (Jammy). (Houston Putman)
 
+* SOLR-16462: v2 equivalents of the "Core Admin" `LISTSNAPSHOT`, `CREATESNAPSHOT`, and `DELETESNAPSHOT` commands are now available at
+  `GET /api/cores/coreName/snapshots`, `POST /api/cores/coreName/snapshots/snapshotName`, and
+  `DELETE /api/cores/coreName/snapshots/snapshotName`, respectively  (John Durham via Jason Gerlowski)
+
 Optimizations
 ---------------------
 

solr/core/src/java/org/apache/solr/core/CoreContainer.java

@@ -1095,6 +1095,17 @@ protected void configure() {
                       .to(SolrNodeKeyPair.class)
                       .in(Singleton.class);
                 }
+              })
+          .register(
+              new AbstractBinder() {
+                @Override
+                protected void configure() {
+                  bindFactory(
+                          new InjectionFactories.SingletonFactory<>(
+                              coreAdminHandler.getCoreAdminAsyncTracker()))
+                      .to(CoreAdminHandler.CoreAdminAsyncTracker.class)
+                      .in(Singleton.class);
+                }
               });
       jerseyAppHandler = new ApplicationHandler(containerHandlers.getJerseyEndpoints());
     }