adding quickfix library

quickfix/cmd/generate-fix/internal/globals.go

@@ -0,0 +1,74 @@
+package internal
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/quickfixgo/quickfix/datadictionary"
+)
+
+type fieldTypeMap map[string]*datadictionary.FieldType
+
+var (
+	globalFieldTypesLookup fieldTypeMap
+	GlobalFieldTypes       []*datadictionary.FieldType
+)
+
+// Sort fieldtypes by name.
+type byFieldName []*datadictionary.FieldType
+
+func (n byFieldName) Len() int           { return len(n) }
+func (n byFieldName) Swap(i, j int)      { n[i], n[j] = n[j], n[i] }
+func (n byFieldName) Less(i, j int) bool { return n[i].Name() < n[j].Name() }
+
+func getGlobalFieldType(f *datadictionary.FieldDef) (t *datadictionary.FieldType, err error) {
+	var ok bool
+	t, ok = globalFieldTypesLookup[f.Name()]
+	if !ok {
+		err = fmt.Errorf("Unknown global type for %v", f.Name())
+	}
+
+	return
+}
+
+func BuildGlobalFieldTypes(specs []*datadictionary.DataDictionary) {
+	globalFieldTypesLookup = make(fieldTypeMap)
+	for _, spec := range specs {
+		for _, field := range spec.FieldTypeByTag {
+			if oldField, ok := globalFieldTypesLookup[field.Name()]; ok {
+				// Merge old enums with new.
+				if len(oldField.Enums) > 0 && field.Enums == nil {
+					field.Enums = make(map[string]datadictionary.Enum)
+				}
+
+				for enumVal, enum := range oldField.Enums {
+					if _, ok := field.Enums[enumVal]; !ok {
+						// Verify an existing enum doesn't have the same description. Keep newer enum.
+						okToKeepEnum := true
+						for _, newEnum := range field.Enums {
+							if newEnum.Description == enum.Description {
+								okToKeepEnum = false
+								break
+							}
+						}
+
+						if okToKeepEnum {
+							field.Enums[enumVal] = enum
+						}
+					}
+				}
+			}
+
+			globalFieldTypesLookup[field.Name()] = field
+		}
+	}
+
+	GlobalFieldTypes = make([]*datadictionary.FieldType, len(globalFieldTypesLookup))
+	i := 0
+	for _, fieldType := range globalFieldTypesLookup {
+		GlobalFieldTypes[i] = fieldType
+		i++
+	}
+
+	sort.Sort(byFieldName(GlobalFieldTypes))
+}