feat: allow servers and channels to be fetched from components

lib/models/components.js

@@ -1,9 +1,11 @@
 const { createMapOfType, getMapValueOfType, mix } = require('./utils');
 
 const Base = require('./base');
+const Channel = require('./channel');
 const Message = require('./message');
 const Schema = require('./schema');
 const SecurityScheme = require('./security-scheme');
+const Server = require('./server');
 const ChannelParameter = require('./channel-parameter');
 const CorrelationId = require('./correlation-id');
 const OperationTrait = require('./operation-trait');
@@ -20,6 +22,28 @@ const MixinSpecificationExtensions = require('../mixins/specification-extensions
  * @returns {Components}
  */
 class Components extends Base {
+  /**
+   * @returns {Object<string, Channel>}
+   */
+  channels() {
+    return createMapOfType(this._json.channels, Channel);
+  }
+
+  /**
+   * @returns {boolean}
+   */
+  hasChannels() {
+    return !!this._json.channels;
+  }
+
+  /**
+   * @param {string} name - Name of the channel.
+   * @returns {Channel}
+   */
+  channel(name) {
+    return getMapValueOfType(this._json.channels, name, Channel);
+  }
+
   /**
    * @returns {Object<string, Message>}
    */
@@ -85,6 +109,28 @@ class Components extends Base {
   securityScheme(name) {
     return getMapValueOfType(this._json.securitySchemes, name, SecurityScheme);
   }
+
+  /**
+   * @returns {Object<string, Server>}
+   */
+  servers() {
+    return createMapOfType(this._json.servers, Server);
+  }
+
+  /**
+   * @returns {boolean}
+   */
+  hasServers() {
+    return !!this._json.servers;
+  }
+
+  /**
+   * @param {string} name - Name of the server.
+   * @returns {Server}
+   */
+  server(name) {
+    return getMapValueOfType(this._json.servers, name, Server);
+  }
 
   /**
    * @returns {Object<string, ChannelParameter>}

package.json

@@ -67,7 +67,7 @@
   },
   "dependencies": {
     "@apidevtools/json-schema-ref-parser": "^9.0.6",
-    "@asyncapi/specs": "2.13.0-2022-01-release.1",
+    "@asyncapi/specs": "v2.13.0-2022-01-release.3",
     "@fmvilas/pseudo-yaml-ast": "^0.3.1",
     "ajv": "^6.10.1",
     "js-yaml": "^3.13.1",

test/models/components_test.js

@@ -5,6 +5,57 @@ const Components = require('../../lib/models/components');
 const { assertMixinSpecificationExtensionsInheritance } = require('../mixins/specification-extensions_test');
 
 describe('Components', function() {
+  describe('#channels()', function() {
+    it('should return a map of Channel objects', function() {
+      const doc = { channels: { test1: { description: 'test1' }, test2: { description: 'test2' } } };
+      const d = new Components(doc);
+      expect(typeof d.channels()).to.be.equal('object');
+      expect(d.channels().test1.constructor.name).to.equal('Channel');
+      expect(d.channels().test1.json()).to.equal(doc.channels.test1);
+      expect(d.channels().test2.constructor.name).to.equal('Channel');
+      expect(d.channels().test2.json()).to.equal(doc.channels.test2);
+    });
+
+    it('should return an empty object if the components field has no defined channels', function() {
+      const doc = {};
+      const d = new Components(doc);
+      expect(typeof d.channels()).to.be.equal('object');
+      expect(d.channels()).to.deep.equal({});
+    });
+  });
+
+  describe('#hasChannels()', function() {
+    it('should return a boolean indicating if the components field has channels', function() {
+      const doc = { channels: { test1: { description: 'test1' }, test2: { description: 'test2' } } };
+      const docNoChannels = { schemas: {} };
+      const d = new Components(doc);
+      const d2 = new Components(docNoChannels);
+      expect(d.hasChannels()).to.equal(true);
+      expect(d2.hasChannels()).to.equal(false);
+    });
+  });
+
+  describe('#channel()', function() {
+    it('should return a specific Channel object', function() {
+      const doc = { channels: { test1: { description: 'test1' }, test2: { description: 'test2' } } };
+      const d = new Components(doc);
+      expect(d.channel('test1').constructor.name).to.equal('Channel');
+      expect(d.channel('test1').json()).to.equal(doc.channels.test1);
+    });
+
+    it('should return null if a channel name is not provided', function() {
+      const doc = { channels: { test1: { description: 'test1' }, test2: { description: 'test2' } } };
+      const d = new Components(doc);
+      expect(d.channel()).to.equal(null);
+    });
+
+    it('should return null if a channel name is not found', function() {
+      const doc = { channels: { test1: { description: 'test1' }, test2: { description: 'test2' } } };
+      const d = new Components(doc);
+      expect(d.channel('not found')).to.equal(null);
+    });
+  });
+
   describe('#messages()', function() {
     it('should return a map of Message objects', function() {
       const doc = { messages: { test1: { test: 'test1' }, test2: { test: 'test2' } } };
@@ -157,6 +208,57 @@ describe('Components', function() {
       expect(d.securityScheme('not found')).to.equal(null);
     });
   });
+
+  describe('#servers()', function() {
+    it('should return a map of Server objects', function() {
+      const doc = { servers: { test1: { url: 'test1' }, test2: { url: 'test2' } } };
+      const d = new Components(doc);
+      expect(typeof d.servers()).to.be.equal('object');
+      expect(d.servers().test1.constructor.name).to.equal('Server');
+      expect(d.servers().test1.json()).to.equal(doc.servers.test1);
+      expect(d.servers().test2.constructor.name).to.equal('Server');
+      expect(d.servers().test2.json()).to.equal(doc.servers.test2);
+    });
+
+    it('should return an empty object if the components field has no defined servers', function() {
+      const doc = {};
+      const d = new Components(doc);
+      expect(typeof d.servers()).to.be.equal('object');
+      expect(d.servers()).to.deep.equal({});
+    });
+  });
+
+  describe('#hasServers()', function() {
+    it('should return a boolean indicating if the components field has servers', function() {
+      const doc = { servers: { test1: { url: 'test1' }, test2: { url: 'test2' } } };
+      const docNoServers = { schemas: {} };
+      const d = new Components(doc);
+      const d2 = new Components(docNoServers);
+      expect(d.hasServers()).to.equal(true);
+      expect(d2.hasServers()).to.equal(false);
+    });
+  });
+
+  describe('#server()', function() {
+    it('should return a specific Server object', function() {
+      const doc = { servers: { test1: { url: 'test1' }, test2: { url: 'test2' } } };
+      const d = new Components(doc);
+      expect(d.server('test1').constructor.name).to.equal('Server');
+      expect(d.server('test1').json()).to.equal(doc.servers.test1);
+    });
+
+    it('should return null if a message name is not provided', function() {
+      const doc = { servers: { test1: { url: 'test1' }, test2: { url: 'test2' } } };
+      const d = new Components(doc);
+      expect(d.server()).to.equal(null);
+    });
+
+    it('should return null if a message name is not found', function() {
+      const doc = { servers: { test1: { url: 'test1' }, test2: { url: 'test2' } } };
+      const d = new Components(doc);
+      expect(d.server('not found')).to.equal(null);
+    });
+  });
 
   describe('#parameters()', function() {
     it('should return a map of ChannelParameter objects', function() {