[VOL-1349] EPON OLT adapter (package B)
Change-Id: I634ef62c53813dcf4456f54948f13e06358e263c
diff --git a/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/common/utils.go b/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/common/utils.go
new file mode 100644
index 0000000..3d91119
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v3/pkg/adapters/common/utils.go
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * 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 common
+
+import (
+ "context"
+ "fmt"
+ "github.com/opencord/voltha-lib-go/v3/pkg/log"
+ ic "github.com/opencord/voltha-protos/v3/go/inter_container"
+ "google.golang.org/grpc/codes"
+ "math/rand"
+ "time"
+)
+
+//GetRandomSerialNumber returns a serial number formatted as "HOST:PORT"
+func GetRandomSerialNumber() string {
+ rand.Seed(time.Now().UnixNano())
+ return fmt.Sprintf("%d.%d.%d.%d:%d",
+ rand.Intn(255),
+ rand.Intn(255),
+ rand.Intn(255),
+ rand.Intn(255),
+ rand.Intn(9000)+1000,
+ )
+}
+
+//GetRandomMacAddress returns a random mac address
+func GetRandomMacAddress() string {
+ rand.Seed(time.Now().UnixNano())
+ return fmt.Sprintf("%02x:%02x:%02x:%02x:%02x:%02x",
+ rand.Intn(128),
+ rand.Intn(128),
+ rand.Intn(128),
+ rand.Intn(128),
+ rand.Intn(128),
+ rand.Intn(128),
+ )
+}
+
+const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
+const (
+ letterIdxBits = 6 // 6 bits to represent a letter index
+ letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
+ letterIdxMax = 63 / letterIdxBits // # of letter indices fitting in 63 bits
+)
+
+var src = rand.NewSource(time.Now().UnixNano())
+
+func GetRandomString(n int) string {
+ b := make([]byte, n)
+ // A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
+ for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
+ if remain == 0 {
+ cache, remain = src.Int63(), letterIdxMax
+ }
+ if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
+ b[i] = letterBytes[idx]
+ i--
+ }
+ cache >>= letterIdxBits
+ remain--
+ }
+ return string(b)
+}
+
+func ICProxyErrorCodeToGrpcErrorCode(ctx context.Context, icErr ic.ErrorCodeCodes) codes.Code {
+ switch icErr {
+ case ic.ErrorCode_INVALID_PARAMETERS:
+ return codes.InvalidArgument
+ case ic.ErrorCode_UNSUPPORTED_REQUEST:
+ return codes.Unavailable
+ case ic.ErrorCode_DEADLINE_EXCEEDED:
+ return codes.DeadlineExceeded
+ default:
+ logger.Warnw(ctx, "cannnot-map-ic-error-code-to-grpc-error-code", log.Fields{"err": icErr})
+ return codes.Internal
+ }
+}