#42 setting default ttl when there is not hostname, increasing cache …

…size to about 1MB

cache/store/store.go

@@ -7,7 +7,7 @@ import (
 
 var c cache.Cache;
 func init(){
-	c = lru.New(256);
+	c = lru.New(43690); // about 1 MB considering HostnameVo struct
 }
 
 //

proxy/local.go

@@ -36,8 +36,10 @@ func (s localDnsSolver) Solve(ctx context.Context, question dns.Question) (*dns.
 		if activeEnv == nil {
 			return nil, errors.New("original env")
 		}
+		var ttl int64 = 86400 // 24 hours
 		hostname,_ = activeEnv.GetHostname(key)
-		val := s.Cache.PutIfAbsent(key, timed.NewTimedValue(hostname, time.Now(), time.Duration(int64(hostname.Ttl)) * time.Second));
+		if hostname != nil { ttl = int64(hostname.Ttl) }
+		val := s.Cache.PutIfAbsent(key, timed.NewTimedValue(hostname, time.Now(), time.Duration(ttl) * time.Second));
 		LOGGER.Debugf("status=put, key=%s, value=%v", key, val)
 	}
 

proxy/local_test.go

@@ -40,6 +40,23 @@ func TestLocalDnsSolver_Solve(t *testing.T) {
 
 }
 
+func TestLocalDnsSolver_SolveNotFoundHost(t *testing.T) {
+
+	defer local.ResetConf()
+
+	expectedHostname := "github.com"
+	ctx := logging.NewContext()
+
+	question := new(dns.Question)
+	question.Name = expectedHostname + "."
+	solver := NewLocalDNSSolver(store.GetInstance())
+
+	// act
+	_, err := solver.Solve(ctx, *question)
+	assert.NotNil(t, err, "Fail to solve")
+
+}
+
 
 type MockCache struct {
 	mock.Mock