Merge pull request #328 from pixlise/feature/elevangle

Feature/elevangle

api/piquant/configuration.go

@@ -20,6 +20,9 @@ package piquant
 
 import (
 	"context"
+	"fmt"
+	"strconv"
+	"strings"
 
 	"github.com/pixlise/core/v4/api/dbCollections"
 	"github.com/pixlise/core/v4/api/filepaths"
@@ -79,3 +82,29 @@ func GetDetectorConfig(name string, db *mongo.Database) (*protos.DetectorConfig,
 
 	return &cfg, nil
 }
+
+func ReadFieldFromPIQUANTConfigMSA(msaContents string, fieldName string) (float32, error) {
+	piquantCfgLines := strings.Split(msaContents, "\n")
+	for _, line := range piquantCfgLines {
+		idx := strings.Index(line, fieldName)
+		if idx >= 0 {
+			line := line[idx+len(fieldName):]
+			idx = strings.Index(line, ":")
+
+			if idx >= 0 {
+				line = line[idx+1:]
+				line = strings.TrimLeft(line, " ")
+
+				// Now snip off anything after it
+				idx = strings.Index(line, " ")
+				if idx >= 0 {
+					line = line[0:idx]
+					val, err := strconv.ParseFloat(line, 32)
+					return float32(val), err
+				}
+			}
+		}
+	}
+
+	return 0, fmt.Errorf("Failed to find field %v", fieldName)
+}

api/ws/handlers/detector-config.go

@@ -2,8 +2,10 @@ package wsHandler
 
 import (
 	"context"
+	"fmt"
 
 	"github.com/pixlise/core/v4/api/dbCollections"
+	"github.com/pixlise/core/v4/api/filepaths"
 	"github.com/pixlise/core/v4/api/piquant"
 	"github.com/pixlise/core/v4/api/ws/wsHelpers"
 	protos "github.com/pixlise/core/v4/generated-protos"
@@ -21,9 +23,39 @@ func HandleDetectorConfigReq(req *protos.DetectorConfigReq, hctx wsHelpers.Handl
 		return nil, err
 	}
 
+	// Read versions
+	versions := piquant.GetPiquantConfigVersions(hctx.Svcs, req.Id)
+	if len(versions) <= 0 {
+		return nil, fmt.Errorf("DetectorConfig %v has no versions defined", req.Id)
+	}
+
+	latestVersion := versions[len(versions)-1]
+
+	// Read PIQUANT config file
+	piquantCfg, err := piquant.GetPIQUANTConfig(hctx.Svcs, req.Id, latestVersion)
+	if err != nil {
+		return nil, err
+	}
+
+	// Retrieve elevAngle
+	cfgPath := filepaths.GetDetectorConfigPath(req.Id, latestVersion, piquantCfg.ConfigFile)
+	piquantCfgFile, err := hctx.Svcs.FS.ReadObject(hctx.Svcs.Config.ConfigBucket, cfgPath)
+	if err != nil {
+		return nil, err
+	}
+
+	// Find the value
+	piquantCfgFileStr := string(piquantCfgFile)
+	angle, err := piquant.ReadFieldFromPIQUANTConfigMSA(piquantCfgFileStr, "#ELEVANGLE")
+	if err != nil {
+		return nil, fmt.Errorf("Failed to read ELEVANGLE from Piquant config file: %v", cfgPath)
+	}
+
+	cfg.ElevAngle = angle
+
 	return &protos.DetectorConfigResp{
 		Config:                cfg,
-		PiquantConfigVersions: piquant.GetPiquantConfigVersions(hctx.Svcs, req.Id),
+		PiquantConfigVersions: versions,
 	}, nil
 }
 

internal/cmd-line-tools/api-integration-test/testDetectorConfig.go

@@ -67,7 +67,8 @@ func testDetectorConfig(apiHost string) {
 					"xrfeVResolution": 230,
 					"windowElement": 14,
 					"tubeElement": 45,
-					"mmBeamRadius": 0.06
+					"mmBeamRadius": 0.06,
+					"elevAngle": 70
 				},
 				"piquantConfigVersions": [
 					"v5",