Hulk did something

[bytom/vapor.git] / vendor / google.golang.org / grpc / resolver / manual / manual.go

diff --git a/vendor/google.golang.org/grpc/resolver/manual/manual.go b/vendor/google.golang.org/grpc/resolver/manual/manual.go
new file mode 100644 (file)
index 0000000..de2fb25
--- /dev/null
+++ b/vendor/google.golang.org/grpc/resolver/manual/manual.go
@@ -0,0 +1,80 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * 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 manual contains a resolver for testing purpose only.
+package manual
+
+import (
+       "strconv"
+       "time"
+
+       "google.golang.org/grpc/resolver"
+)
+
+// NewBuilderWithScheme creates a new test resolver builder with the given scheme.
+func NewBuilderWithScheme(scheme string) *Resolver {
+       return &Resolver{
+               scheme: scheme,
+       }
+}
+
+// Resolver is also a resolver builder.
+// It's build() function always returns itself.
+type Resolver struct {
+       scheme string
+
+       // Fields actually belong to the resolver.
+       cc resolver.ClientConn
+}
+
+// Build returns itself for Resolver, because it's both a builder and a resolver.
+func (r *Resolver) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOption) (resolver.Resolver, error) {
+       r.cc = cc
+       return r, nil
+}
+
+// Scheme returns the test scheme.
+func (r *Resolver) Scheme() string {
+       return r.scheme
+}
+
+// ResolveNow is a noop for Resolver.
+func (*Resolver) ResolveNow(o resolver.ResolveNowOption) {}
+
+// Close is a noop for Resolver.
+func (*Resolver) Close() {}
+
+// NewAddress calls cc.NewAddress.
+func (r *Resolver) NewAddress(addrs []resolver.Address) {
+       r.cc.NewAddress(addrs)
+}
+
+// NewServiceConfig calls cc.NewServiceConfig.
+func (r *Resolver) NewServiceConfig(sc string) {
+       r.cc.NewServiceConfig(sc)
+}
+
+// GenerateAndRegisterManualResolver generates a random scheme and a Resolver
+// with it. It also regieter this Resolver.
+// It returns the Resolver and a cleanup function to unregister it.
+func GenerateAndRegisterManualResolver() (*Resolver, func()) {
+       scheme := strconv.FormatInt(time.Now().UnixNano(), 36)
+       r := NewBuilderWithScheme(scheme)
+       resolver.Register(r)
+       return r, func() { resolver.UnregisterForTesting(scheme) }
+}