Implement ErSv1.ProcessDir api

cores.Server, analyzer object and internal conn channel specific to ERs
are now part of the ERService struct and are passed to its constructor.

ers/ers.go

@@ -21,6 +21,7 @@ package ers
 import (
 	"encoding/csv"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"os"
 	"path"
@@ -80,6 +81,37 @@ type ERService struct {
 	partialCache *ltcache.Cache
 }
 
+// V1RunReader processes files in the configured directory for the given reader. This function handles files
+// based on the reader's type and configuration. Only available for readers that are not processing files
+// automatically (RunDelay should equal 0).
+//
+// Note: This API is not safe to call concurrently for the same reader. Ensure the current files finish being
+// processed before calling again.
+func (erS *ERService) V1RunReader(ctx *context.Context, rdrID utils.StringWithAPIOpts, reply *string) error {
+	rdrCfg := erS.cfg.ERsCfg().ReaderCfg(rdrID.Arg)
+	er, has := erS.rdrs[rdrID.Arg]
+	if !has || rdrCfg == nil {
+		return utils.ErrNotFound
+	}
+	if rdrCfg.RunDelay != 0 {
+		return errors.New("readers with RunDelay different from 0 are not supported")
+	}
+	switch rdr := er.(type) {
+	case *CSVFileER:
+		processReaderDir(rdr.dir, utils.CSVSuffix, rdr.processFile)
+	case *XMLFileER:
+		processReaderDir(rdr.dir, utils.XMLSuffix, rdr.processFile)
+	case *FWVFileER:
+		processReaderDir(rdr.dir, utils.FWVSuffix, rdr.processFile)
+	case *JSONFileER:
+		processReaderDir(rdr.dir, utils.JSNSuffix, rdr.processFile)
+	default:
+		return errors.New("reader type does not yet support manual processing")
+	}
+	*reply = utils.OK
+	return nil
+}
+
 // ListenAndServe keeps the service alive
 func (erS *ERService) ListenAndServe(stopChan, cfgRldChan chan struct{}) error {
 	for cfgIdx, rdrCfg := range erS.cfg.ERsCfg().Readers {