From cea29fe158c953cf0ac2c815bc74398351dcceb1 Mon Sep 17 00:00:00 2001
From: Xiang Li <xiang.li@coreos.com>
Date: Mon, 29 Dec 2014 11:15:02 -0800
Subject: [PATCH] etcdserver: move getExpr to timeutil

---
 etcdserver/server.go          | 11 ++------
 etcdserver/server_test.go     | 27 -------------------
 pkg/timeutil/timeutil.go      | 29 ++++++++++++++++++++
 pkg/timeutil/timeutil_test.go | 50 +++++++++++++++++++++++++++++++++++
 4 files changed, 81 insertions(+), 36 deletions(-)
 create mode 100644 pkg/timeutil/timeutil.go
 create mode 100644 pkg/timeutil/timeutil_test.go

diff --git a/etcdserver/server.go b/etcdserver/server.go
index 0b18c0ba3..4fcb3f394 100644
--- a/etcdserver/server.go
+++ b/etcdserver/server.go
@@ -38,6 +38,7 @@ import (
 	"github.com/coreos/etcd/etcdserver/stats"
 	"github.com/coreos/etcd/pkg/fileutil"
 	"github.com/coreos/etcd/pkg/pbutil"
+	"github.com/coreos/etcd/pkg/timeutil"
 	"github.com/coreos/etcd/pkg/types"
 	"github.com/coreos/etcd/pkg/wait"
 	"github.com/coreos/etcd/raft"
@@ -664,14 +665,6 @@ func (s *EtcdServer) publish(retryInterval time.Duration) {
 	}
 }
 
-func getExpirationTime(r *pb.Request) time.Time {
-	var t time.Time
-	if r.Expiration != 0 {
-		t = time.Unix(0, r.Expiration)
-	}
-	return t
-}
-
 func (s *EtcdServer) send(ms []raftpb.Message) {
 	for _, m := range ms {
 		if !s.Cluster.IsIDRemoved(types.ID(m.To)) {
@@ -717,7 +710,7 @@ func (s *EtcdServer) applyRequest(r pb.Request) Response {
 	f := func(ev *store.Event, err error) Response {
 		return Response{Event: ev, err: err}
 	}
-	expr := getExpirationTime(&r)
+	expr := timeutil.UnixNanoToTime(r.Expiration)
 	switch r.Method {
 	case "POST":
 		return f(s.store.Create(r.Path, r.Dir, r.Val, true, expr))
diff --git a/etcdserver/server_test.go b/etcdserver/server_test.go
index 1b432716b..242d0728e 100644
--- a/etcdserver/server_test.go
+++ b/etcdserver/server_test.go
@@ -45,33 +45,6 @@ func init() {
 	log.SetOutput(ioutil.Discard)
 }
 
-func TestGetExpirationTime(t *testing.T) {
-	tests := []struct {
-		r    pb.Request
-		want time.Time
-	}{
-		{
-			pb.Request{Expiration: 0},
-			time.Time{},
-		},
-		{
-			pb.Request{Expiration: 60000},
-			time.Unix(0, 60000),
-		},
-		{
-			pb.Request{Expiration: -60000},
-			time.Unix(0, -60000),
-		},
-	}
-
-	for i, tt := range tests {
-		got := getExpirationTime(&tt.r)
-		if !reflect.DeepEqual(tt.want, got) {
-			t.Errorf("#%d: incorrect expiration time: want=%v got=%v", i, tt.want, got)
-		}
-	}
-}
-
 // TestDoLocalAction tests requests which do not need to go through raft to be applied,
 // and are served through local data.
 func TestDoLocalAction(t *testing.T) {
diff --git a/pkg/timeutil/timeutil.go b/pkg/timeutil/timeutil.go
new file mode 100644
index 000000000..1a15afb86
--- /dev/null
+++ b/pkg/timeutil/timeutil.go
@@ -0,0 +1,29 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package timeutil
+
+import "time"
+
+// UnixNanoToTime returns the local time corresponding to the given Unix time in nanoseconds.
+// If the given Unix time is zero, an uninitialized zero time is returned.
+func UnixNanoToTime(ns int64) time.Time {
+	var t time.Time
+	if ns != 0 {
+		t = time.Unix(0, ns)
+	}
+	return t
+}
diff --git a/pkg/timeutil/timeutil_test.go b/pkg/timeutil/timeutil_test.go
new file mode 100644
index 000000000..4f47cd35d
--- /dev/null
+++ b/pkg/timeutil/timeutil_test.go
@@ -0,0 +1,50 @@
+/*
+   Copyright 2014 CoreOS, Inc.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+package timeutil
+
+import (
+	"reflect"
+	"testing"
+	"time"
+)
+
+func TestUnixNanoToTime(t *testing.T) {
+	tests := []struct {
+		ns   int64
+		want time.Time
+	}{
+		{
+			0,
+			time.Time{},
+		},
+		{
+			60000,
+			time.Unix(0, 60000),
+		},
+		{
+			-60000,
+			time.Unix(0, -60000),
+		},
+	}
+
+	for i, tt := range tests {
+		got := UnixNanoToTime(tt.ns)
+		if !reflect.DeepEqual(got, tt.want) {
+			t.Errorf("#%d: time = %v, want %v", i, got, tt.want)
+		}
+	}
+}