Filter measurements by branch

server/src/main/java/com/openelements/benchscape/server/store/endpoints/MeasurementEndpoint.java

@@ -21,11 +21,7 @@
 import java.util.Optional;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.format.annotation.DateTimeFormat;
-import org.springframework.web.bind.annotation.CrossOrigin;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 @CrossOrigin
 @RestController
@@ -123,4 +119,10 @@ List<Measurement> findByQuery(@RequestParam final String benchmarkId,
             return measurements;
         }
     }
+
+    @GetMapping("/{benchmarkId}/branches")
+    public List<String> getGitBranchesForBenchmark(@PathVariable String benchmarkId) {
+        return measurementService.getBranchesForBenchmark(benchmarkId);
+    }
 }
+

server/src/main/java/com/openelements/benchscape/server/store/repositories/MeasurementRepository.java

@@ -41,4 +41,8 @@ public interface MeasurementRepository extends EntityWithTenantRepository<Measur
     @NonNull
     @Query("SELECT m FROM Measurement m WHERE m.benchmarkId = ?1 ORDER BY m.timestamp DESC limit 1")
     Optional<MeasurementEntity> findLast(final UUID benchmarkId);
+
+    @NonNull
+    @Query("SELECT DISTINCT m.metadata.gitBranch FROM Measurement m WHERE m.benchmarkId = ?1")
+    List<String> findDistinctBranchesByBenchmarkId(UUID benchmarkId);
 }

server/src/main/java/com/openelements/benchscape/server/store/services/MeasurementService.java

@@ -186,4 +186,10 @@ public DateTimePeriode getPeriode(@NonNull final UUID benchmarkId) {
                 .orElseThrow(() -> new IllegalArgumentException("No measurement for benchmark " + benchmarkId));
         return DateTimePeriode.between(start, end);
     }
+
+    @NonNull
+    public List<String> getBranchesForBenchmark(@NonNull final String benchmarkId) {
+        Objects.requireNonNull(benchmarkId, "benchmarkId must not be null");
+        return measurementRepository.findDistinctBranchesByBenchmarkId(UUID.fromString(benchmarkId));
+    }
 }