[VOL-2235] Mocks and interfaces for rw-core
This update consists of mocks that are used by the rw-core
during unit testing. It also includes interfaces used for unit
tests.
Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/go.etcd.io/etcd/etcdserver/api/membership/store.go b/vendor/go.etcd.io/etcd/etcdserver/api/membership/store.go
new file mode 100644
index 0000000..14ab119
--- /dev/null
+++ b/vendor/go.etcd.io/etcd/etcdserver/api/membership/store.go
@@ -0,0 +1,193 @@
+// Copyright 2016 The etcd 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 membership
+
+import (
+ "encoding/json"
+ "fmt"
+ "path"
+
+ "go.etcd.io/etcd/etcdserver/api/v2store"
+ "go.etcd.io/etcd/mvcc/backend"
+ "go.etcd.io/etcd/pkg/types"
+
+ "github.com/coreos/go-semver/semver"
+)
+
+const (
+ attributesSuffix = "attributes"
+ raftAttributesSuffix = "raftAttributes"
+
+ // the prefix for stroing membership related information in store provided by store pkg.
+ storePrefix = "/0"
+)
+
+var (
+ membersBucketName = []byte("members")
+ membersRemovedBucketName = []byte("members_removed")
+ clusterBucketName = []byte("cluster")
+
+ StoreMembersPrefix = path.Join(storePrefix, "members")
+ storeRemovedMembersPrefix = path.Join(storePrefix, "removed_members")
+)
+
+func mustSaveMemberToBackend(be backend.Backend, m *Member) {
+ mkey := backendMemberKey(m.ID)
+ mvalue, err := json.Marshal(m)
+ if err != nil {
+ plog.Panicf("marshal raftAttributes should never fail: %v", err)
+ }
+
+ tx := be.BatchTx()
+ tx.Lock()
+ tx.UnsafePut(membersBucketName, mkey, mvalue)
+ tx.Unlock()
+}
+
+func mustDeleteMemberFromBackend(be backend.Backend, id types.ID) {
+ mkey := backendMemberKey(id)
+
+ tx := be.BatchTx()
+ tx.Lock()
+ tx.UnsafeDelete(membersBucketName, mkey)
+ tx.UnsafePut(membersRemovedBucketName, mkey, []byte("removed"))
+ tx.Unlock()
+}
+
+func mustSaveClusterVersionToBackend(be backend.Backend, ver *semver.Version) {
+ ckey := backendClusterVersionKey()
+
+ tx := be.BatchTx()
+ tx.Lock()
+ defer tx.Unlock()
+ tx.UnsafePut(clusterBucketName, ckey, []byte(ver.String()))
+}
+
+func mustSaveMemberToStore(s v2store.Store, m *Member) {
+ b, err := json.Marshal(m.RaftAttributes)
+ if err != nil {
+ plog.Panicf("marshal raftAttributes should never fail: %v", err)
+ }
+ p := path.Join(MemberStoreKey(m.ID), raftAttributesSuffix)
+ if _, err := s.Create(p, false, string(b), false, v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
+ plog.Panicf("create raftAttributes should never fail: %v", err)
+ }
+}
+
+func mustDeleteMemberFromStore(s v2store.Store, id types.ID) {
+ if _, err := s.Delete(MemberStoreKey(id), true, true); err != nil {
+ plog.Panicf("delete member should never fail: %v", err)
+ }
+ if _, err := s.Create(RemovedMemberStoreKey(id), false, "", false, v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
+ plog.Panicf("create removedMember should never fail: %v", err)
+ }
+}
+
+func mustUpdateMemberInStore(s v2store.Store, m *Member) {
+ b, err := json.Marshal(m.RaftAttributes)
+ if err != nil {
+ plog.Panicf("marshal raftAttributes should never fail: %v", err)
+ }
+ p := path.Join(MemberStoreKey(m.ID), raftAttributesSuffix)
+ if _, err := s.Update(p, string(b), v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
+ plog.Panicf("update raftAttributes should never fail: %v", err)
+ }
+}
+
+func mustUpdateMemberAttrInStore(s v2store.Store, m *Member) {
+ b, err := json.Marshal(m.Attributes)
+ if err != nil {
+ plog.Panicf("marshal raftAttributes should never fail: %v", err)
+ }
+ p := path.Join(MemberStoreKey(m.ID), attributesSuffix)
+ if _, err := s.Set(p, false, string(b), v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
+ plog.Panicf("update raftAttributes should never fail: %v", err)
+ }
+}
+
+func mustSaveClusterVersionToStore(s v2store.Store, ver *semver.Version) {
+ if _, err := s.Set(StoreClusterVersionKey(), false, ver.String(), v2store.TTLOptionSet{ExpireTime: v2store.Permanent}); err != nil {
+ plog.Panicf("save cluster version should never fail: %v", err)
+ }
+}
+
+// nodeToMember builds member from a key value node.
+// the child nodes of the given node MUST be sorted by key.
+func nodeToMember(n *v2store.NodeExtern) (*Member, error) {
+ m := &Member{ID: MustParseMemberIDFromKey(n.Key)}
+ attrs := make(map[string][]byte)
+ raftAttrKey := path.Join(n.Key, raftAttributesSuffix)
+ attrKey := path.Join(n.Key, attributesSuffix)
+ for _, nn := range n.Nodes {
+ if nn.Key != raftAttrKey && nn.Key != attrKey {
+ return nil, fmt.Errorf("unknown key %q", nn.Key)
+ }
+ attrs[nn.Key] = []byte(*nn.Value)
+ }
+ if data := attrs[raftAttrKey]; data != nil {
+ if err := json.Unmarshal(data, &m.RaftAttributes); err != nil {
+ return nil, fmt.Errorf("unmarshal raftAttributes error: %v", err)
+ }
+ } else {
+ return nil, fmt.Errorf("raftAttributes key doesn't exist")
+ }
+ if data := attrs[attrKey]; data != nil {
+ if err := json.Unmarshal(data, &m.Attributes); err != nil {
+ return m, fmt.Errorf("unmarshal attributes error: %v", err)
+ }
+ }
+ return m, nil
+}
+
+func backendMemberKey(id types.ID) []byte {
+ return []byte(id.String())
+}
+
+func backendClusterVersionKey() []byte {
+ return []byte("clusterVersion")
+}
+
+func mustCreateBackendBuckets(be backend.Backend) {
+ tx := be.BatchTx()
+ tx.Lock()
+ defer tx.Unlock()
+ tx.UnsafeCreateBucket(membersBucketName)
+ tx.UnsafeCreateBucket(membersRemovedBucketName)
+ tx.UnsafeCreateBucket(clusterBucketName)
+}
+
+func MemberStoreKey(id types.ID) string {
+ return path.Join(StoreMembersPrefix, id.String())
+}
+
+func StoreClusterVersionKey() string {
+ return path.Join(storePrefix, "version")
+}
+
+func MemberAttributesStorePath(id types.ID) string {
+ return path.Join(MemberStoreKey(id), attributesSuffix)
+}
+
+func MustParseMemberIDFromKey(key string) types.ID {
+ id, err := types.IDFromString(path.Base(key))
+ if err != nil {
+ plog.Panicf("unexpected parse member id error: %v", err)
+ }
+ return id
+}
+
+func RemovedMemberStoreKey(id types.ID) string {
+ return path.Join(storeRemovedMembersPrefix, id.String())
+}