@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
248 lines • 28.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.TagManager = void 0;
const cfn_resource_1 = require("./cfn-resource");
/**
* Standard tags are a list of { key, value } objects
*/
class StandardFormatter {
parseTags(cfnPropertyTags, priority) {
if (!Array.isArray(cfnPropertyTags)) {
throw new Error(`Invalid tag input expected array of {key, value} have ${JSON.stringify(cfnPropertyTags)}`);
}
const tags = [];
for (const tag of cfnPropertyTags) {
if (tag.key === undefined || tag.value === undefined) {
throw new Error(`Invalid tag input expected {key, value} have ${JSON.stringify(tag)}`);
}
// using interp to ensure Token is now string
tags.push({
key: `${tag.key}`,
value: `${tag.value}`,
priority,
});
}
return tags;
}
formatTags(tags) {
const cfnTags = [];
for (const tag of tags) {
cfnTags.push({
key: tag.key,
value: tag.value,
});
}
return cfnTags.length === 0 ? undefined : cfnTags;
}
}
/**
* ASG tags are a list of { key, value, propagateAtLaunch } objects
*/
class AsgFormatter {
parseTags(cfnPropertyTags, priority) {
const tags = [];
if (!Array.isArray(cfnPropertyTags)) {
throw new Error(`Invalid tag input expected array of {key, value, propagateAtLaunch} have ${JSON.stringify(cfnPropertyTags)}`);
}
for (const tag of cfnPropertyTags) {
if (tag.key === undefined ||
tag.value === undefined ||
tag.propagateAtLaunch === undefined) {
throw new Error(`Invalid tag input expected {key, value, propagateAtLaunch} have ${JSON.stringify(tag)}`);
}
// using interp to ensure Token is now string
tags.push({
key: `${tag.key}`,
value: `${tag.value}`,
priority,
applyToLaunchedInstances: !!tag.propagateAtLaunch,
});
}
return tags;
}
formatTags(tags) {
const cfnTags = [];
for (const tag of tags) {
cfnTags.push({
key: tag.key,
value: tag.value,
propagateAtLaunch: tag.applyToLaunchedInstances !== false,
});
}
return cfnTags.length === 0 ? undefined : cfnTags;
}
}
/**
* Some CloudFormation constructs use a { key: value } map for tags
*/
class MapFormatter {
parseTags(cfnPropertyTags, priority) {
const tags = [];
if (Array.isArray(cfnPropertyTags) || typeof (cfnPropertyTags) !== 'object') {
throw new Error(`Invalid tag input expected map of {key: value} have ${JSON.stringify(cfnPropertyTags)}`);
}
for (const [key, value] of Object.entries(cfnPropertyTags)) {
tags.push({
key,
value: `${value}`,
priority,
});
}
return tags;
}
formatTags(tags) {
const cfnTags = {};
for (const tag of tags) {
cfnTags[`${tag.key}`] = `${tag.value}`;
}
return Object.keys(cfnTags).length === 0 ? undefined : cfnTags;
}
}
/**
* StackTags are of the format { Key: key, Value: value }
*/
class KeyValueFormatter {
parseTags(keyValueTags, priority) {
const tags = [];
for (const key in keyValueTags) {
if (keyValueTags.hasOwnProperty(key)) {
const value = keyValueTags[key];
tags.push({
key,
value,
priority,
});
}
}
return tags;
}
formatTags(unformattedTags) {
const tags = [];
unformattedTags.forEach(tag => {
tags.push({
Key: tag.key,
Value: tag.value,
});
});
return tags;
}
}
class NoFormat {
parseTags(_cfnPropertyTags) {
return [];
}
formatTags(_tags) {
return undefined;
}
}
let _tagFormattersCache;
/**
* Access tag formatters table
*
* In a function because we're in a load cycle with cfn-resource that defines `TagType`.
*/
function TAG_FORMATTERS() {
return _tagFormattersCache !== null && _tagFormattersCache !== void 0 ? _tagFormattersCache : (_tagFormattersCache = {
[cfn_resource_1.TagType.AUTOSCALING_GROUP]: new AsgFormatter(),
[cfn_resource_1.TagType.STANDARD]: new StandardFormatter(),
[cfn_resource_1.TagType.MAP]: new MapFormatter(),
[cfn_resource_1.TagType.KEY_VALUE]: new KeyValueFormatter(),
[cfn_resource_1.TagType.NOT_TAGGABLE]: new NoFormat(),
});
}
;
/**
* TagManager facilitates a common implementation of tagging for Constructs.
*/
class TagManager {
/**
*
*/
constructor(tagType, resourceTypeName, tagStructure, options = {}) {
this.tags = new Map();
this.priorities = new Map();
this.initialTagPriority = 50;
this.resourceTypeName = resourceTypeName;
this.tagFormatter = TAG_FORMATTERS()[tagType];
if (tagStructure !== undefined) {
this._setTag(...this.tagFormatter.parseTags(tagStructure, this.initialTagPriority));
}
this.tagPropertyName = options.tagPropertyName || 'tags';
}
/**
* Check whether the given construct is Taggable.
*/
static isTaggable(construct) {
return construct.tags !== undefined;
}
/**
* Adds the specified tag to the array of tags.
*/
setTag(key, value, priority = 0, applyToLaunchedInstances = true) {
// This method mostly exists because we don't want to expose the 'Tag' type used (it will be confusing
// to users).
this._setTag({ key, value, priority, applyToLaunchedInstances });
}
/**
* Removes the specified tag from the array if it exists.
*
* @param key The tag to remove.
* @param priority The priority of the remove operation.
*/
removeTag(key, priority) {
if (priority >= (this.priorities.get(key) || 0)) {
this.tags.delete(key);
this.priorities.set(key, priority);
}
}
/**
* Renders tags into the proper format based on TagType.
*/
renderTags() {
return this.tagFormatter.formatTags(this.sortedTags);
}
/**
* Render the tags in a readable format.
*/
tagValues() {
const ret = {};
for (const tag of this.sortedTags) {
ret[tag.key] = tag.value;
}
return ret;
}
/**
* Determine if the aspect applies here.
*
* Looks at the include and exclude resourceTypeName arrays to determine if
* the aspect applies here
*/
applyTagAspectHere(include, exclude) {
if (exclude && exclude.length > 0 && exclude.indexOf(this.resourceTypeName) !== -1) {
return false;
}
if (include && include.length > 0 && include.indexOf(this.resourceTypeName) === -1) {
return false;
}
return true;
}
/**
* Returns true if there are any tags defined.
*/
hasTags() {
return this.tags.size > 0;
}
_setTag(...tags) {
for (const tag of tags) {
if (tag.priority >= (this.priorities.get(tag.key) || 0)) {
this.tags.set(tag.key, tag);
this.priorities.set(tag.key, tag.priority);
}
}
}
get sortedTags() {
return Array.from(this.tags.values()).sort((a, b) => a.key.localeCompare(b.key));
}
}
exports.TagManager = TagManager;
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{ TagType } from './cfn-resource';\nimport { CfnTag } from './cfn-tag';\n\ninterface Tag {\n  key: string;\n  value: string;\n  priority: number;\n\n  /**\n   * @default true\n   */\n  applyToLaunchedInstances?: boolean;\n}\n\ninterface CfnAsgTag {\n  key: string;\n  value: string;\n  propagateAtLaunch: boolean;\n}\n\ninterface StackTag {\n  Key: string;\n  Value: string;\n}\n/**\n * Interface for converter between CloudFormation and internal tag representations\n */\ninterface ITagFormatter {\n  /**\n   * Format the given tags as CloudFormation tags\n   */\n  formatTags(tags: Tag[]): any;\n\n  /**\n   * Parse the CloudFormation tag representation into internal representation\n   *\n   * Use the given priority.\n   */\n  parseTags(cfnPropertyTags: any, priority: number): Tag[];\n}\n\n/**\n * Standard tags are a list of { key, value } objects\n */\nclass StandardFormatter implements ITagFormatter {\n  public parseTags(cfnPropertyTags: any, priority: number): Tag[] {\n    if (!Array.isArray(cfnPropertyTags)) {\n      throw new Error(`Invalid tag input expected array of {key, value} have ${JSON.stringify(cfnPropertyTags)}`);\n    }\n\n    const tags: Tag[] = [];\n    for (const tag of cfnPropertyTags) {\n      if (tag.key === undefined || tag.value === undefined) {\n        throw new Error(`Invalid tag input expected {key, value} have ${JSON.stringify(tag)}`);\n      }\n      // using interp to ensure Token is now string\n      tags.push({\n        key: `${tag.key}`,\n        value: `${tag.value}`,\n        priority,\n      });\n    }\n    return tags;\n  }\n\n  public formatTags(tags: Tag[]): any {\n    const cfnTags: CfnTag[] = [];\n    for (const tag of tags) {\n      cfnTags.push({\n        key: tag.key,\n        value: tag.value,\n      });\n    }\n    return cfnTags.length === 0 ? undefined : cfnTags;\n  }\n}\n\n/**\n * ASG tags are a list of { key, value, propagateAtLaunch } objects\n */\nclass AsgFormatter implements ITagFormatter {\n  public parseTags(cfnPropertyTags: any, priority: number): Tag[] {\n    const tags: Tag[] = [];\n    if (!Array.isArray(cfnPropertyTags)) {\n      throw new Error(`Invalid tag input expected array of {key, value, propagateAtLaunch} have ${JSON.stringify(cfnPropertyTags)}`);\n    }\n\n    for (const tag of cfnPropertyTags) {\n      if (tag.key === undefined ||\n        tag.value === undefined ||\n        tag.propagateAtLaunch === undefined) {\n        throw new Error(`Invalid tag input expected {key, value, propagateAtLaunch} have ${JSON.stringify(tag)}`);\n      }\n      // using interp to ensure Token is now string\n      tags.push({\n        key: `${tag.key}`,\n        value: `${tag.value}`,\n        priority,\n        applyToLaunchedInstances: !!tag.propagateAtLaunch,\n      });\n    }\n\n    return tags;\n  }\n\n  public formatTags(tags: Tag[]): any {\n    const cfnTags: CfnAsgTag[] = [];\n    for (const tag of tags) {\n      cfnTags.push({\n        key: tag.key,\n        value: tag.value,\n        propagateAtLaunch: tag.applyToLaunchedInstances !== false,\n      });\n    }\n    return cfnTags.length === 0 ? undefined : cfnTags;\n  }\n}\n\n/**\n * Some CloudFormation constructs use a { key: value } map for tags\n */\nclass MapFormatter implements ITagFormatter {\n  public parseTags(cfnPropertyTags: any, priority: number): Tag[] {\n    const tags: Tag[] = [];\n    if (Array.isArray(cfnPropertyTags) || typeof(cfnPropertyTags) !== 'object') {\n      throw new Error(`Invalid tag input expected map of {key: value} have ${JSON.stringify(cfnPropertyTags)}`);\n    }\n\n    for (const [key, value] of Object.entries(cfnPropertyTags)) {\n      tags.push({\n        key,\n        value: `${value}`,\n        priority,\n      });\n    }\n\n    return tags;\n  }\n\n  public formatTags(tags: Tag[]): any {\n    const cfnTags: {[key: string]: string} = {};\n    for (const tag of tags) {\n      cfnTags[`${tag.key}`] = `${tag.value}`;\n    }\n    return Object.keys(cfnTags).length === 0 ? undefined : cfnTags;\n  }\n}\n\n/**\n * StackTags are of the format { Key: key, Value: value }\n */\nclass KeyValueFormatter implements ITagFormatter {\n  public parseTags(keyValueTags: any, priority: number): Tag[] {\n    const tags: Tag[] = [];\n    for (const key in keyValueTags) {\n      if (keyValueTags.hasOwnProperty(key)) {\n        const value = keyValueTags[key];\n        tags.push({\n          key,\n          value,\n          priority,\n        });\n      }\n    }\n    return tags;\n  }\n  public formatTags(unformattedTags: Tag[]): any {\n    const tags: StackTag[] = [];\n    unformattedTags.forEach(tag => {\n      tags.push({\n        Key: tag.key,\n        Value: tag.value,\n      });\n    });\n    return tags;\n  }\n}\n\nclass NoFormat implements ITagFormatter {\n  public parseTags(_cfnPropertyTags: any): Tag[] {\n    return [];\n  }\n  public formatTags(_tags: Tag[]): any {\n    return undefined;\n  }\n}\n\n\nlet _tagFormattersCache: {[key: string]: ITagFormatter} | undefined;\n\n/**\n * Access tag formatters table\n *\n * In a function because we're in a load cycle with cfn-resource that defines `TagType`.\n */\nfunction TAG_FORMATTERS(): {[key: string]: ITagFormatter} {\n  return _tagFormattersCache ?? (_tagFormattersCache = {\n    [TagType.AUTOSCALING_GROUP]: new AsgFormatter(),\n    [TagType.STANDARD]: new StandardFormatter(),\n    [TagType.MAP]: new MapFormatter(),\n    [TagType.KEY_VALUE]: new KeyValueFormatter(),\n    [TagType.NOT_TAGGABLE]: new NoFormat(),\n  });\n};\n\n                                       \nexport interface ITaggable {\n                                                          \n  readonly tags: TagManager;\n}\n\n                                                   \nexport interface TagManagerOptions {\n                                                                                                                                                                              \n  readonly tagPropertyName?: string;\n}\n\n                                                                                    \nexport class TagManager {\n\n                                                              \n  public static isTaggable(construct: any): construct is ITaggable {\n    return (construct as any).tags !== undefined;\n  }\n\n                                                                                                                                                                       \n  public readonly tagPropertyName: string;\n\n  private readonly tags = new Map<string, Tag>();\n  private readonly priorities = new Map<string, number>();\n  private readonly tagFormatter: ITagFormatter;\n  private readonly resourceTypeName: string;\n  private readonly initialTagPriority = 50;\n\n  constructor(tagType: TagType, resourceTypeName: string, tagStructure?: any, options: TagManagerOptions = { }) {\n    this.resourceTypeName = resourceTypeName;\n    this.tagFormatter = TAG_FORMATTERS()[tagType];\n    if (tagStructure !== undefined) {\n      this._setTag(...this.tagFormatter.parseTags(tagStructure, this.initialTagPriority));\n    }\n    this.tagPropertyName = options.tagPropertyName || 'tags';\n  }\n\n                                                                 \n  public setTag(key: string, value: string, priority = 0, applyToLaunchedInstances = true): void {\n    // This method mostly exists because we don't want to expose the 'Tag' type used (it will be confusing\n    // to users).\n    this._setTag({ key, value, priority, applyToLaunchedInstances });\n  }\n\n                                                                                                                                                                       \n  public removeTag(key: string, priority: number): void {\n    if (priority >= (this.priorities.get(key) || 0)) {\n      this.tags.delete(key);\n      this.priorities.set(key, priority);\n    }\n  }\n\n                                                                     \n  public renderTags(): any {\n    return this.tagFormatter.formatTags(this.sortedTags);\n  }\n\n                                                     \n  public tagValues(): Record<string, string> {\n    const ret: Record<string, string> = {};\n    for (const tag of this.sortedTags) {\n      ret[tag.key] = tag.value;\n    }\n    return ret;\n  }\n\n                                                                                                                                                                     \n  public applyTagAspectHere(include?: string[], exclude?: string[]) {\n    if (exclude && exclude.length > 0 && exclude.indexOf(this.resourceTypeName) !== -1) {\n      return false;\n    }\n    if (include && include.length > 0 && include.indexOf(this.resourceTypeName) === -1) {\n      return false;\n    }\n\n    return true;\n  }\n\n                                                           \n  public hasTags(): boolean {\n    return this.tags.size > 0;\n  }\n\n  private _setTag(...tags: Tag[]) {\n    for (const tag of tags) {\n      if (tag.priority >= (this.priorities.get(tag.key) || 0)) {\n        this.tags.set(tag.key, tag);\n        this.priorities.set(tag.key, tag.priority);\n      }\n    }\n  }\n\n  private get sortedTags() {\n    return Array.from(this.tags.values()).sort((a, b) => a.key.localeCompare(b.key));\n  }\n}\n"]}