| /* |
| * 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 commands |
| |
| import ( |
| "errors" |
| "fmt" |
| "github.com/apache/incubator-openwhisk-cli/wski18n" |
| "github.com/apache/incubator-openwhisk-client-go/whisk" |
| "strings" |
| ) |
| |
| type QualifiedName struct { |
| namespace string // namespace. does not include leading '/'. may be "" (i.e. default namespace) |
| packageName string // package. may be "". does not include leading/trailing '/' |
| entity string // entity. should not be "" |
| EntityName string // pkg+entity |
| } |
| |
| /////////////////////////// |
| // QualifiedName Methods // |
| /////////////////////////// |
| |
| // GetFullQualifiedName() returns a full qualified name in proper string format |
| // from qualifiedName with proper syntax. |
| // Example: /namespace/[package/]entity |
| func (qualifiedName *QualifiedName) GetFullQualifiedName() string { |
| output := []string{} |
| |
| if len(qualifiedName.GetNamespace()) > 0 { |
| output = append(output, "/", qualifiedName.GetNamespace(), "/") |
| } |
| if len(qualifiedName.GetPackageName()) > 0 { |
| output = append(output, qualifiedName.GetPackageName(), "/") |
| } |
| output = append(output, qualifiedName.GetEntity()) |
| |
| return strings.Join(output, "") |
| } |
| |
| // GetPackageName() returns the package name from qualifiedName without a |
| // leading '/' |
| func (qualifiedName *QualifiedName) GetPackageName() string { |
| return qualifiedName.packageName |
| } |
| |
| // GetEntityName() returns the entity name ([package/]entity) of qualifiedName |
| // without a leading '/' |
| func (qualifiedName *QualifiedName) GetEntityName() string { |
| return qualifiedName.EntityName |
| } |
| |
| // GetEntity() returns the name of entity in qualifiedName without a leading '/' |
| func (qualifiedName *QualifiedName) GetEntity() string { |
| return qualifiedName.entity |
| } |
| |
| // GetNamespace() returns the name of the namespace in qualifiedName without |
| // a leading '/' |
| func (qualifiedName *QualifiedName) GetNamespace() string { |
| return qualifiedName.namespace |
| } |
| |
| // NewQualifiedName(name) initializes and constructs a (possibly fully qualified) |
| // QualifiedName struct. |
| // |
| // NOTE: If the given qualified name is None, then this is a default qualified |
| // name and it is resolved from properties. |
| // NOTE: If the namespace is missing from the qualified name, the namespace |
| // is also resolved from the property file. |
| // |
| // Examples: |
| // foo => qualifiedName {namespace: "_", entityName: foo} |
| // pkg/foo => qualifiedName {namespace: "_", entityName: pkg/foo} |
| // /ns/foo => qualifiedName {namespace: ns, entityName: foo} |
| // /ns/pkg/foo => qualifiedName {namespace: ns, entityName: pkg/foo} |
| func NewQualifiedName(name string) (*QualifiedName, error) { |
| qualifiedName := new(QualifiedName) |
| |
| // If name has a preceding delimiter (/), or if it has two delimiters with a |
| // leading non-empty string, then it contains a namespace. Otherwise the name |
| // does not specify a namespace, so default the namespace to the namespace |
| // value set in the properties file; if that is not set, use "_" |
| name = addLeadSlash(name) |
| parts := strings.Split(name, "/") |
| if strings.HasPrefix(name, "/") { |
| qualifiedName.namespace = parts[1] |
| |
| if len(parts) < 2 || len(parts) > 4 { |
| return qualifiedName, qualifiedNameNotSpecifiedErr() |
| } |
| |
| for i := 1; i < len(parts); i++ { |
| if len(parts[i]) == 0 || parts[i] == "." { |
| return qualifiedName, qualifiedNameNotSpecifiedErr() |
| } |
| } |
| |
| qualifiedName.EntityName = strings.Join(parts[2:], "/") |
| if len(parts) == 4 { |
| qualifiedName.packageName = parts[2] |
| } |
| qualifiedName.entity = parts[len(parts)-1] |
| } else { |
| if len(name) == 0 || name == "." { |
| return qualifiedName, qualifiedNameNotSpecifiedErr() |
| } |
| |
| qualifiedName.entity = parts[len(parts)-1] |
| if len(parts) == 2 { |
| qualifiedName.packageName = parts[0] |
| } |
| qualifiedName.EntityName = name |
| qualifiedName.namespace = getNamespaceFromProp() |
| } |
| |
| whisk.Debug(whisk.DbgInfo, "Qualified pkg+entity (EntityName): %s\n", qualifiedName.GetEntityName()) |
| whisk.Debug(whisk.DbgInfo, "Qualified namespace: %s\n", qualifiedName.GetNamespace()) |
| whisk.Debug(whisk.DbgInfo, "Qualified package: %s\n", qualifiedName.GetPackageName()) |
| whisk.Debug(whisk.DbgInfo, "Qualified entity: %s\n", qualifiedName.GetEntity()) |
| |
| return qualifiedName, nil |
| } |
| |
| ///////////////////// |
| // Error Functions // |
| ///////////////////// |
| |
| // qualifiedNameNotSpecifiedErr() returns generic whisk error for |
| // invalid qualified names detected while building a new |
| // QualifiedName struct. |
| func qualifiedNameNotSpecifiedErr() error { |
| whisk.Debug(whisk.DbgError, "A valid qualified name was not detected\n") |
| errStr := wski18n.T("A valid qualified name must be specified.") |
| return whisk.MakeWskError(errors.New(errStr), whisk.NOT_ALLOWED, whisk.DISPLAY_MSG, whisk.NO_DISPLAY_USAGE) |
| } |
| |
| // NewQualifiedNameError(entityName, err) returns specific whisk error |
| // for invalid qualified names. |
| func NewQualifiedNameError(entityName string, err error) error { |
| whisk.Debug(whisk.DbgError, "NewQualifiedName(%s) failed: %s\n", entityName, err) |
| |
| errMsg := wski18n.T( |
| "'{{.name}}' is not a valid qualified name: {{.err}}", |
| map[string]interface{}{ |
| "name": entityName, |
| "err": err, |
| }) |
| |
| return whisk.MakeWskError(errors.New(errMsg), whisk.EXIT_CODE_ERR_GENERAL, whisk.DISPLAY_MSG, whisk.DISPLAY_USAGE) |
| } |
| |
| /////////////////////////// |
| // Helper/Misc Functions // |
| /////////////////////////// |
| |
| // addLeadSlash(name) returns a (possibly fully qualified) resource name, |
| // inserting a leading '/' if it is of 3 parts (namespace/package/action) |
| // and lacking the leading '/'. |
| func addLeadSlash(name string) string { |
| parts := strings.Split(name, "/") |
| if len(parts) == 3 && parts[0] != "" { |
| name = "/" + name |
| } |
| return name |
| } |
| |
| // getNamespaceFromProp() returns a namespace from Properties if one exists, |
| // else defaults to returning "_" |
| func getNamespaceFromProp() string { |
| namespace := "_" |
| |
| if Properties.Namespace != "" { |
| namespace = Properties.Namespace |
| } |
| |
| return namespace |
| } |
| |
| // getQualifiedName(name, namespace) returns a fully qualified name given a |
| // (possibly fully qualified) resource name and optional namespace. |
| // |
| // Examples: |
| // (foo, None) => /_/foo |
| // (pkg/foo, None) => /_/pkg/foo |
| // (foo, ns) => /ns/foo |
| // (/ns/pkg/foo, None) => /ns/pkg/foo |
| // (/ns/pkg/foo, otherns) => /ns/pkg/foo |
| func getQualifiedName(name string, namespace string) string { |
| name = addLeadSlash(name) |
| if strings.HasPrefix(name, "/") { |
| return name |
| } else if strings.HasPrefix(namespace, "/") { |
| return fmt.Sprintf("%s/%s", namespace, name) |
| } else { |
| if len(namespace) == 0 { |
| namespace = Properties.Namespace |
| } |
| return fmt.Sprintf("/%s/%s", namespace, name) |
| } |
| } |