remove trailing space

store/store.go

@@ -68,7 +68,7 @@ type Response struct {
 	PrevValue string `json:"prevValue,omitempty"`
 	Value     string `json:"value,omitempty"`
 
-	// If the key did not exist before the action, 
+	// If the key did not exist before the action,
 	// this field should be set to true
 	NewKey    bool `json:"newKey,omitempty"`
 
@@ -145,9 +145,9 @@ func (s *Store) Set(key string, value string, expireTime time.Time, index uint64
 
 	// base response
 	resp := Response{
-		Action: "SET", 
-		Key: key, 
-		Value: value, 
+		Action: "SET",
+		Key: key,
+		Value: value,
 		Index: index,
 	}
 
@@ -164,8 +164,8 @@ func (s *Store) Set(key string, value string, expireTime time.Time, index uint64
 	if isExpire {
 		TTL = int64(expireTime.Sub(time.Now()) / time.Second)
 		resp.Expiration = &expireTime
-		resp.TTL = TTL 
-	} 
+		resp.TTL = TTL
+	}
 
 	// Get the node
 	node, ok := s.Tree.get(key)
@@ -259,18 +259,18 @@ func (s *Store) internalGet(key string) *Response {
 		isExpire = !node.ExpireTime.Equal(PERMANENT)
 
 		resp := &Response{
-			Action: "GET", 
-			Key: key, 
-			Value: node.Value, 
+			Action: "GET",
+			Key: key,
+			Value: node.Value,
 			Index: s.Index,
 		}
 
 		// Update ttl
 		if isExpire {
 			TTL = int64(node.ExpireTime.Sub(time.Now()) / time.Second)
-			resp.Expiration = &node.ExpireTime 
-			resp.TTL = TTL 
-		} 
+			resp.Expiration = &node.ExpireTime
+			resp.TTL = TTL
+		}
 
 		return resp
 
@@ -300,7 +300,7 @@ func (s *Store) Get(key string) ([]byte, error) {
 			isExpire = !nodes[i].ExpireTime.Equal(PERMANENT)
 
 			resps[i] = Response{
-				Action: "GET", 
+				Action: "GET",
 				Index: s.Index,
 				Key: path.Join(key, keys[i]),
 			}
@@ -314,9 +314,9 @@ func (s *Store) Get(key string) ([]byte, error) {
 			// Update ttl
 			if isExpire {
 				TTL = int64(nodes[i].ExpireTime.Sub(time.Now()) / time.Second)
-				resps[i].Expiration = &nodes[i].ExpireTime 
-				resps[i].TTL = TTL 
-			} 
+				resps[i].Expiration = &nodes[i].ExpireTime
+				resps[i].TTL = TTL
+			}
 
 		}
 		if len(resps) == 1 {
@@ -342,9 +342,9 @@ func (s *Store) Delete(key string, index uint64) ([]byte, error) {
 	if ok {
 
 		resp := Response{
-			Action: "DELETE", 
-			Key: key, 
-			PrevValue: node.Value,   
+			Action: "DELETE",
+			Key: key,
+			PrevValue: node.Value,
 			Index: index,
 		}
 
@@ -358,7 +358,7 @@ func (s *Store) Delete(key string, index uint64) ([]byte, error) {
 			// Kill the expire go routine
 			node.update <- PERMANENT
 			s.Tree.delete(key)
-			
+
 		}
 
 		msg, err := json.Marshal(resp)
@@ -387,7 +387,7 @@ func (s *Store) TestAndSet(key string, prevValue string, value string, expireTim
 
 	if resp == nil {
 		err := NotFoundError(key)
-		return nil, err 
+		return nil, err
 	}
 
 	if resp.Value == prevValue {
@@ -432,10 +432,10 @@ func (s *Store) monitorExpiration(key string, update chan time.Time, expireTime
 				s.Tree.delete(key)
 
 				resp := Response{
-					Action: "DELETE", 
-					Key: key, 
-					PrevValue: node.Value, 
-					Expiration: &node.ExpireTime,  
+					Action: "DELETE",
+					Key: key,
+					PrevValue: node.Value,
+					Expiration: &node.ExpireTime,
 					Index: s.Index,
 				}
 

store/tree.go

@@ -12,7 +12,7 @@ import (
 //
 //------------------------------------------------------------------------------
 
-// A file system like tree structure. Each non-leaf node of the tree has a hashmap to 
+// A file system like tree structure. Each non-leaf node of the tree has a hashmap to
 // store its children nodes. Leaf nodes has no hashmap (a nil pointer)
 type tree struct {
 	Root *treeNode
@@ -21,7 +21,7 @@ type tree struct {
 // A treeNode wraps a Node. It has a hashmap to keep records of its children treeNodes.
 type treeNode struct {
 	InternalNode Node
-	Dir bool 
+	Dir bool
 	NodeMap map[string]*treeNode
 }
 
@@ -75,7 +75,7 @@ func (t *tree) set(key string, value Node) bool {
 
 		// get the node from the nodeMap of the current level
 		tn, ok := nodeMap[nodesName[i]]
-	
+
 		if !ok {
 			// add a new directory and set newDir to true
 			newDir = true
@@ -85,7 +85,7 @@ func (t *tree) set(key string, value Node) bool {
 
 		} else if ok && !tn.Dir {
 
-			// if we meet a non-directory node, we cannot set the key 
+			// if we meet a non-directory node, we cannot set the key
 			return false
 		} else {
 
@@ -102,7 +102,7 @@ func (t *tree) set(key string, value Node) bool {
 		// we add a new treeNode
 		tn := &treeNode{value, false, nil}
 		nodeMap[nodesName[i]] = tn
-	
+
 	} else {
 		if tn.Dir {
 			return false
@@ -114,12 +114,12 @@ func (t *tree) set(key string, value Node) bool {
 
 }
 
-// Get the tree node of the key 
+// Get the tree node of the key
 func (t *tree)internalGet(key string) (*treeNode, bool) {
 	nodesName := split(key)
 
 	nodeMap := t.Root.NodeMap
-		
+
 	var i int
 
 	for i = 0; i < len(nodesName) - 1; i++ {
@@ -136,7 +136,7 @@ func (t *tree)internalGet(key string) (*treeNode, bool) {
 	} else {
 		return nil, ok
 	}
-} 
+}
 
 // get the internalNode of the key
 func (t *tree) get(key string) (Node, bool) {
@@ -163,7 +163,7 @@ func (t *tree) list(directory string) ([]Node, []string, []bool, bool) {
 			nodes := make([]Node, 1)
 			nodes[0] = treeNode.InternalNode
 			return nodes, make([]string, 1), make([]bool, 1), true
-		} 
+		}
 		length := len(treeNode.NodeMap)
 		nodes := make([]Node, length)
 		keys := make([]string, length)
@@ -190,7 +190,7 @@ func (t *tree) delete(key string) bool {
 	nodesName := split(key)
 
 	nodeMap := t.Root.NodeMap
-		
+
 	var i int
 
 	for i = 0; i < len(nodesName) - 1; i++ {
@@ -214,11 +214,11 @@ func (t *tree) traverse(f func(string, *Node), sort bool) {
 	if sort {
 		sortDfs("", t.Root, f)
 	} else {
-		dfs("", t.Root, f)	
+		dfs("", t.Root, f)
 	}
 }
 
-// deep first search to traverse the tree 
+// deep first search to traverse the tree
 // apply the func f to each internal node
 func dfs(key string, t *treeNode, f func(string, *Node)) {
 

store/tree_store_test.go

@@ -10,13 +10,13 @@ import (
 
 func TestStoreGet(t *testing.T) {
 
-	ts := &tree{ 
+	ts := &tree{
 		&treeNode{
-			CreateTestNode("/"), 
-			true, 
+			CreateTestNode("/"),
+			true,
 			make(map[string]*treeNode),
 		},
-	} 
+	}
 
 	// create key
 	ts.set("/foo", CreateTestNode("bar"))
@@ -49,13 +49,13 @@ func TestStoreGet(t *testing.T) {
 	}
 
 	// delete a key
-	ok = ts.delete("/foo") 
+	ok = ts.delete("/foo")
 	if !ok {
 		t.Fatalf("cannot delete key")
 	}
 
 	// delete a directory
-	ok = ts.delete("/hello") 
+	ok = ts.delete("/hello")
 	if ok {
 		t.Fatalf("Expect cannot delet /hello, but deleted! ")
 	}
@@ -74,7 +74,7 @@ func TestStoreGet(t *testing.T) {
 
 		for i := 0; i < length; i++ {
 			fmt.Println(keys[i] , "=", nodes[i].Value, "[", dirs[i], "]")
-		} 
+		}
 	}
 
 	// speed test

store/watcher.go

@@ -34,7 +34,7 @@ func CreateWatcher() *Watcher {
 }
 
 // Add a watcher to the watcherHub
-func (w *WatcherHub) addWatcher(prefix string, watcher *Watcher, sinceIndex uint64, 
+func (w *WatcherHub) addWatcher(prefix string, watcher *Watcher, sinceIndex uint64,
 	responseStartIndex uint64, currentIndex uint64, resMap *map[string]Response) error {
 
 	prefix = path.Clean("/" + prefix)