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12 kBJavaScriptView Raw
1"use strict";
2var _a;
3Object.defineProperty(exports, "__esModule", { value: true });
4exports.CfnMapping = void 0;
5const jsiiDeprecationWarnings = require("../.warnings.jsii.js");
6const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti");
7const annotations_1 = require("./annotations");
8const cfn_element_1 = require("./cfn-element");
9const cfn_fn_1 = require("./cfn-fn");
10const token_1 = require("./token");
11/**
12 * Represents a CloudFormation mapping.
13 */
14class CfnMapping extends cfn_element_1.CfnRefElement {
15 constructor(scope, id, props = {}) {
16 super(scope, id);
17 this.lazyRender = false;
18 this.lazyInformed = false;
19 try {
20 jsiiDeprecationWarnings._aws_cdk_core_CfnMappingProps(props);
21 }
22 catch (error) {
23 if (process.env.JSII_DEBUG !== "1" && error.name === "DeprecationError") {
24 Error.captureStackTrace(error, CfnMapping);
25 }
26 throw error;
27 }
28 this.mapping = props.mapping ? this.validateMapping(props.mapping) : {};
29 this.lazy = props.lazy;
30 }
31 /**
32 * Sets a value in the map based on the two keys.
33 */
34 setValue(key1, key2, value) {
35 this.validateAlphanumeric(key2);
36 if (!(key1 in this.mapping)) {
37 this.mapping[key1] = {};
38 }
39 this.mapping[key1][key2] = value;
40 }
41 /**
42 * @returns A reference to a value in the map based on the two keys.
43 */
44 findInMap(key1, key2) {
45 let fullyResolved = false;
46 if (!token_1.Token.isUnresolved(key1)) {
47 if (!(key1 in this.mapping)) {
48 throw new Error(`Mapping doesn't contain top-level key '${key1}'`);
49 }
50 if (!token_1.Token.isUnresolved(key2)) {
51 if (!(key2 in this.mapping[key1])) {
52 throw new Error(`Mapping doesn't contain second-level key '${key2}'`);
53 }
54 fullyResolved = true;
55 }
56 }
57 if (fullyResolved) {
58 if (this.lazy) {
59 return this.mapping[key1][key2];
60 }
61 }
62 else {
63 this.lazyRender = true;
64 }
65 return cfn_fn_1.Fn.findInMap(this.logicalId, key1, key2);
66 }
67 /**
68 * @internal
69 */
70 _toCloudFormation() {
71 if (this.lazy === undefined && !this.lazyRender) {
72 this.informLazyUse();
73 }
74 if (!this.lazy || (this.lazy && this.lazyRender)) {
75 return {
76 Mappings: {
77 [this.logicalId]: this.mapping,
78 },
79 };
80 }
81 else {
82 return {};
83 }
84 }
85 informLazyUse() {
86 if (!this.lazyInformed) {
87 annotations_1.Annotations.of(this).addInfo('Consider making this CfnMapping a lazy mapping by providing `lazy: true`: either no findInMap was called or every findInMap could be immediately resolved without using Fn::FindInMap');
88 }
89 this.lazyInformed = true;
90 }
91 validateMapping(mapping) {
92 Object.keys(mapping).forEach((m) => Object.keys(mapping[m]).forEach(this.validateAlphanumeric));
93 return mapping;
94 }
95 validateAlphanumeric(value) {
96 // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/mappings-section-structure.html
97 if (value.match(/[^a-zA-Z0-9]/g)) {
98 throw new Error(`Attribute name '${value}' must contain only alphanumeric characters.`);
99 }
100 }
101}
102exports.CfnMapping = CfnMapping;
103_a = JSII_RTTI_SYMBOL_1;
104CfnMapping[_a] = { fqn: "@aws-cdk/core.CfnMapping", version: "1.204.0" };
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In this case, `findInMap` will return a `Fn::FindInMap` CloudFormation\n   * intrinsic.\n   *\n   * @default false\n   */\n  readonly lazy?: boolean;\n}\n\n/**\n * Represents a CloudFormation mapping.\n */\nexport class CfnMapping extends CfnRefElement {\n  private mapping: Mapping;\n  private readonly lazy?: boolean;\n  private lazyRender = false;\n  private lazyInformed = false;\n\n  constructor(scope: Construct, id: string, props: CfnMappingProps = {}) {\n    super(scope, id);\n    this.mapping = props.mapping ? this.validateMapping(props.mapping) : {};\n    this.lazy = props.lazy;\n  }\n\n  /**\n   * Sets a value in the map based on the two keys.\n   */\n  public setValue(key1: string, key2: string, value: any) {\n    this.validateAlphanumeric(key2);\n\n    if (!(key1 in this.mapping)) {\n      this.mapping[key1] = { };\n    }\n\n    this.mapping[key1][key2] = value;\n  }\n\n  /**\n   * @returns A reference to a value in the map based on the two keys.\n   */\n  public findInMap(key1: string, key2: string): string {\n    let fullyResolved = false;\n    if (!Token.isUnresolved(key1)) {\n      if (!(key1 in this.mapping)) {\n        throw new Error(`Mapping doesn't contain top-level key '${key1}'`);\n      }\n      if (!Token.isUnresolved(key2)) {\n        if (!(key2 in this.mapping[key1])) {\n          throw new Error(`Mapping doesn't contain second-level key '${key2}'`);\n        }\n        fullyResolved = true;\n      }\n    }\n    if (fullyResolved) {\n      if (this.lazy) {\n        return this.mapping[key1][key2];\n      }\n    } else {\n      this.lazyRender = true;\n    }\n    return Fn.findInMap(this.logicalId, key1, key2);\n  }\n\n  /**\n   * @internal\n   */\n  public _toCloudFormation(): object {\n    if (this.lazy === undefined && !this.lazyRender) {\n      this.informLazyUse();\n    }\n    if (!this.lazy || (this.lazy && this.lazyRender)) {\n      return {\n        Mappings: {\n          [this.logicalId]: this.mapping,\n        },\n      };\n    } else {\n      return {};\n    }\n  }\n\n  private informLazyUse() {\n    if (!this.lazyInformed) {\n      Annotations.of(this).addInfo('Consider making this CfnMapping a lazy mapping by providing `lazy: true`: either no findInMap was called or every findInMap could be immediately resolved without using Fn::FindInMap');\n    }\n    this.lazyInformed = true;\n  }\n\n  private validateMapping(mapping: Mapping): Mapping {\n    Object.keys(mapping).forEach((m) => Object.keys(mapping[m]).forEach(this.validateAlphanumeric));\n    return mapping;\n  }\n\n  private validateAlphanumeric(value: any) {\n    // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/mappings-section-structure.html\n    if (value.match(/[^a-zA-Z0-9]/g)) {\n      throw new Error(`Attribute name '${value}' must contain only alphanumeric characters.`);\n    }\n  }\n}\n"]}
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