| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 identifier |
| |
| import ( |
| "encoding/base64" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go/common/constant" |
| ) |
| |
| // BaseMetadataIdentifier defined for describe the Metadata base identify |
| type IMetadataIdentifier interface { |
| GetFilePathKey() string |
| GetIdentifierKey() string |
| } |
| |
| // BaseMetadataIdentifier is the base implement of BaseMetadataIdentifier interface |
| type BaseMetadataIdentifier struct { |
| ServiceInterface string |
| Version string |
| Group string |
| Side string |
| } |
| |
| // joinParams will join the specified char in slice, and build as string |
| func joinParams(joinChar string, params []string) string { |
| var joinedStr string |
| for _, param := range params { |
| joinedStr += joinChar |
| joinedStr += param |
| } |
| return joinedStr |
| } |
| |
| // getIdentifierKey returns string that format is service:Version:Group:Side:param1:param2... |
| func (mdi *BaseMetadataIdentifier) getIdentifierKey(params ...string) string { |
| return mdi.ServiceInterface + |
| constant.KEY_SEPARATOR + mdi.Version + |
| constant.KEY_SEPARATOR + mdi.Group + |
| constant.KEY_SEPARATOR + mdi.Side + |
| joinParams(constant.KEY_SEPARATOR, params) |
| } |
| |
| // getFilePathKey returns string that format is metadata/path/Version/Group/Side/param1/param2... |
| func (mdi *BaseMetadataIdentifier) getFilePathKey(params ...string) string { |
| path := serviceToPath(mdi.ServiceInterface) |
| |
| return constant.DEFAULT_PATH_TAG + |
| withPathSeparator(path) + |
| withPathSeparator(mdi.Version) + |
| withPathSeparator(mdi.Group) + |
| withPathSeparator(mdi.Side) + |
| joinParams(constant.PATH_SEPARATOR, params) |
| } |
| |
| // serviceToPath uss URL encode to decode the @serviceInterface |
| func serviceToPath(serviceInterface string) string { |
| if serviceInterface == constant.ANY_VALUE { |
| return "" |
| } else { |
| decoded, err := base64.URLEncoding.DecodeString(serviceInterface) |
| if err != nil { |
| return "" |
| } |
| return string(decoded) |
| } |
| } |
| |
| // withPathSeparator return "/" + @path |
| func withPathSeparator(path string) string { |
| if len(path) != 0 { |
| path = constant.PATH_SEPARATOR + path |
| } |
| return path |
| } |