adding quickfix library

quickfix/log/composite/composite_log.go

@@ -0,0 +1,81 @@
+// Copyright (c) quickfixengine.org  All rights reserved.
+//
+// This file may be distributed under the terms of the quickfixengine.org
+// license as defined by quickfixengine.org and appearing in the file
+// LICENSE included in the packaging of this file.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
+// THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// See http://www.quickfixengine.org/LICENSE for licensing information.
+//
+// Contact ask@quickfixengine.org if any conditions of this licensing
+// are not clear to you.
+
+package composite
+
+import (
+	"github.com/quickfixgo/quickfix"
+)
+
+type compositeLog struct {
+	logs []quickfix.Log
+}
+
+func (l compositeLog) OnIncoming(s []byte) {
+	for _, log := range l.logs {
+		log.OnIncoming(s)
+	}
+}
+
+func (l compositeLog) OnOutgoing(s []byte) {
+	for _, log := range l.logs {
+		log.OnOutgoing(s)
+	}
+}
+
+func (l compositeLog) OnEvent(s string) {
+	for _, log := range l.logs {
+		log.OnEvent(s)
+	}
+}
+
+func (l compositeLog) OnEventf(format string, a ...interface{}) {
+	for _, log := range l.logs {
+		log.OnEventf(format, a)
+	}
+}
+
+type compositeLogFactory struct {
+	logFactories []quickfix.LogFactory
+}
+
+func (clf compositeLogFactory) Create() (quickfix.Log, error) {
+	logs := []quickfix.Log{}
+	for _, lf := range clf.logFactories {
+		log, err := lf.Create()
+		if err != nil {
+			return nil, err
+		}
+		logs = append(logs, log)
+	}
+	return compositeLog{logs}, nil
+}
+
+func (clf compositeLogFactory) CreateSessionLog(sessionID quickfix.SessionID) (quickfix.Log, error) {
+	logs := []quickfix.Log{}
+	for _, lf := range clf.logFactories {
+		log, err := lf.CreateSessionLog(sessionID)
+		if err != nil {
+			return nil, err
+		}
+		logs = append(logs, log)
+	}
+	return compositeLog{logs}, nil
+}
+
+// NewLogFactory creates an instance of LogFactory that writes messages and events to stdout.
+func NewLogFactory(logfactories []quickfix.LogFactory) quickfix.LogFactory {
+	return compositeLogFactory{logfactories}
+}