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feat: deferred client initialization #75

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Mar 6, 2020
Merged

feat: deferred client initialization #75

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103 changes: 75 additions & 28 deletions src/v1/cloud_build_client.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -51,9 +51,14 @@ export class CloudBuildClient {
private _descriptors: Descriptors = {page: {}, stream: {}, longrunning: {}};
private _innerApiCalls: {[name: string]: Function};
private _terminated = false;
private _opts: ClientOptions;
private _gaxModule: typeof gax | typeof gax.fallback;
private _gaxGrpc: gax.GrpcClient | gax.fallback.GrpcClient;
private _protos: {};
private _defaults: {[method: string]: gax.CallSettings};
auth: gax.GoogleAuth;
operationsClient: gax.OperationsClient;
cloudBuildStub: Promise<{[name: string]: Function}>;
cloudBuildStub?: Promise<{[name: string]: Function}>;

/**
* Construct an instance of CloudBuildClient.
Expand All @@ -77,8 +82,6 @@ export class CloudBuildClient {
* app is running in an environment which supports
* {@link https://developers.google.com/identity/protocols/application-default-credentials Application Default Credentials},
* your project ID will be detected automatically.
* @param {function} [options.promise] - Custom promise module to use instead
* of native Promises.
* @param {string} [options.apiEndpoint] - The domain name of the
* API remote host.
*/
Expand Down Expand Up @@ -108,25 +111,28 @@ export class CloudBuildClient {
// If we are in browser, we are already using fallback because of the
// "browser" field in package.json.
// But if we were explicitly requested to use fallback, let's do it now.
const gaxModule = !isBrowser && opts.fallback ? gax.fallback : gax;
this._gaxModule = !isBrowser && opts.fallback ? gax.fallback : gax;

// Create a `gaxGrpc` object, with any grpc-specific options
// sent to the client.
opts.scopes = (this.constructor as typeof CloudBuildClient).scopes;
const gaxGrpc = new gaxModule.GrpcClient(opts);
this._gaxGrpc = new this._gaxModule.GrpcClient(opts);

// Save options to use in initialize() method.
this._opts = opts;

// Save the auth object to the client, for use by other methods.
this.auth = gaxGrpc.auth as gax.GoogleAuth;
this.auth = this._gaxGrpc.auth as gax.GoogleAuth;

// Determine the client header string.
const clientHeader = [`gax/${gaxModule.version}`, `gapic/${version}`];
const clientHeader = [`gax/${this._gaxModule.version}`, `gapic/${version}`];
if (typeof process !== 'undefined' && 'versions' in process) {
clientHeader.push(`gl-node/${process.versions.node}`);
} else {
clientHeader.push(`gl-web/${gaxModule.version}`);
clientHeader.push(`gl-web/${this._gaxModule.version}`);
}
if (!opts.fallback) {
clientHeader.push(`grpc/${gaxGrpc.grpcVersion}`);
clientHeader.push(`grpc/${this._gaxGrpc.grpcVersion}`);
}
if (opts.libName && opts.libVersion) {
clientHeader.push(`${opts.libName}/${opts.libVersion}`);
Expand All @@ -142,20 +148,20 @@ export class CloudBuildClient {
'protos',
'protos.json'
);
const protos = gaxGrpc.loadProto(
this._protos = this._gaxGrpc.loadProto(
opts.fallback ? require('../../protos/protos.json') : nodejsProtoPath
);

// Some of the methods on this service return "paged" results,
// (e.g. 50 results at a time, with tokens to get subsequent
// pages). Denote the keys used for pagination and results.
this._descriptors.page = {
listBuilds: new gaxModule.PageDescriptor(
listBuilds: new this._gaxModule.PageDescriptor(
'pageToken',
'nextPageToken',
'builds'
),
listBuildTriggers: new gaxModule.PageDescriptor(
listBuildTriggers: new this._gaxModule.PageDescriptor(
'pageToken',
'nextPageToken',
'triggers'
Expand All @@ -166,13 +172,15 @@ export class CloudBuildClient {
// an Operation object that allows for tracking of the operation,
// rather than holding a request open.
const protoFilesRoot = opts.fallback
? gaxModule.protobuf.Root.fromJSON(require('../../protos/protos.json'))
: gaxModule.protobuf.loadSync(nodejsProtoPath);
? this._gaxModule.protobuf.Root.fromJSON(
require('../../protos/protos.json')
)
: this._gaxModule.protobuf.loadSync(nodejsProtoPath);

this.operationsClient = gaxModule
this.operationsClient = this._gaxModule
.lro({
auth: this.auth,
grpc: 'grpc' in gaxGrpc ? gaxGrpc.grpc : undefined,
grpc: 'grpc' in this._gaxGrpc ? this._gaxGrpc.grpc : undefined,
})
.operationsClient(opts);
const createBuildResponse = protoFilesRoot.lookup(
Expand All @@ -195,25 +203,25 @@ export class CloudBuildClient {
) as gax.protobuf.Type;

this._descriptors.longrunning = {
createBuild: new gaxModule.LongrunningDescriptor(
createBuild: new this._gaxModule.LongrunningDescriptor(
this.operationsClient,
createBuildResponse.decode.bind(createBuildResponse),
createBuildMetadata.decode.bind(createBuildMetadata)
),
retryBuild: new gaxModule.LongrunningDescriptor(
retryBuild: new this._gaxModule.LongrunningDescriptor(
this.operationsClient,
retryBuildResponse.decode.bind(retryBuildResponse),
retryBuildMetadata.decode.bind(retryBuildMetadata)
),
runBuildTrigger: new gaxModule.LongrunningDescriptor(
runBuildTrigger: new this._gaxModule.LongrunningDescriptor(
this.operationsClient,
runBuildTriggerResponse.decode.bind(runBuildTriggerResponse),
runBuildTriggerMetadata.decode.bind(runBuildTriggerMetadata)
),
};

// Put together the default options sent with requests.
const defaults = gaxGrpc.constructSettings(
this._defaults = this._gaxGrpc.constructSettings(
'google.devtools.cloudbuild.v1.CloudBuild',
gapicConfig as gax.ClientConfig,
opts.clientConfig || {},
Expand All @@ -224,17 +232,35 @@ export class CloudBuildClient {
// of calling the API is handled in `google-gax`, with this code
// merely providing the destination and request information.
this._innerApiCalls = {};
}

/**
* Initialize the client.
* Performs asynchronous operations (such as authentication) and prepares the client.
* This function will be called automatically when any class method is called for the
* first time, but if you need to initialize it before calling an actual method,
* feel free to call initialize() directly.
*
* You can await on this method if you want to make sure the client is initialized.
*
* @returns {Promise} A promise that resolves to an authenticated service stub.
*/
initialize() {
// If the client stub promise is already initialized, return immediately.
if (this.cloudBuildStub) {
return this.cloudBuildStub;
}

// Put together the "service stub" for
// google.devtools.cloudbuild.v1.CloudBuild.
this.cloudBuildStub = gaxGrpc.createStub(
opts.fallback
? (protos as protobuf.Root).lookupService(
this.cloudBuildStub = this._gaxGrpc.createStub(
this._opts.fallback
? (this._protos as protobuf.Root).lookupService(
'google.devtools.cloudbuild.v1.CloudBuild'
)
: // tslint:disable-next-line no-any
(protos as any).google.devtools.cloudbuild.v1.CloudBuild,
opts
(this._protos as any).google.devtools.cloudbuild.v1.CloudBuild,
this._opts
) as Promise<{[method: string]: Function}>;

// Iterate over each of the methods that the service provides
Expand Down Expand Up @@ -271,9 +297,9 @@ export class CloudBuildClient {
}
);

const apiCall = gaxModule.createApiCall(
const apiCall = this._gaxModule.createApiCall(
innerCallPromise,
defaults[methodName],
this._defaults[methodName],
this._descriptors.page[methodName] ||
this._descriptors.stream[methodName] ||
this._descriptors.longrunning[methodName]
Expand All @@ -287,6 +313,8 @@ export class CloudBuildClient {
return apiCall(argument, callOptions, callback);
};
}

return this.cloudBuildStub;
}

/**
Expand Down Expand Up @@ -407,6 +435,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.getBuild(request, options, callback);
}
cancelBuild(
Expand Down Expand Up @@ -474,6 +503,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.cancelBuild(request, options, callback);
}
createBuildTrigger(
Expand Down Expand Up @@ -551,6 +581,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.createBuildTrigger(request, options, callback);
}
getBuildTrigger(
Expand Down Expand Up @@ -628,6 +659,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.getBuildTrigger(request, options, callback);
}
deleteBuildTrigger(
Expand Down Expand Up @@ -705,6 +737,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.deleteBuildTrigger(request, options, callback);
}
updateBuildTrigger(
Expand Down Expand Up @@ -784,6 +817,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.updateBuildTrigger(request, options, callback);
}
createWorkerPool(
Expand Down Expand Up @@ -861,6 +895,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.createWorkerPool(request, options, callback);
}
getWorkerPool(
Expand Down Expand Up @@ -937,6 +972,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.getWorkerPool(request, options, callback);
}
deleteWorkerPool(
Expand Down Expand Up @@ -1013,6 +1049,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.deleteWorkerPool(request, options, callback);
}
updateWorkerPool(
Expand Down Expand Up @@ -1091,6 +1128,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.updateWorkerPool(request, options, callback);
}
listWorkerPools(
Expand Down Expand Up @@ -1166,6 +1204,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.listWorkerPools(request, options, callback);
}

Expand Down Expand Up @@ -1252,6 +1291,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.createBuild(request, options, callback);
}
retryBuild(
Expand Down Expand Up @@ -1359,6 +1399,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.retryBuild(request, options, callback);
}
runBuildTrigger(
Expand Down Expand Up @@ -1442,6 +1483,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.runBuildTrigger(request, options, callback);
}
listBuilds(
Expand Down Expand Up @@ -1527,6 +1569,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.listBuilds(request, options, callback);
}

Expand Down Expand Up @@ -1565,6 +1608,7 @@ export class CloudBuildClient {
request = request || {};
options = options || {};
const callSettings = new gax.CallSettings(options);
this.initialize();
return this._descriptors.page.listBuilds.createStream(
this._innerApiCalls.listBuilds as gax.GaxCall,
request,
Expand Down Expand Up @@ -1651,6 +1695,7 @@ export class CloudBuildClient {
options = optionsOrCallback as gax.CallOptions;
}
options = options || {};
this.initialize();
return this._innerApiCalls.listBuildTriggers(request, options, callback);
}

Expand Down Expand Up @@ -1687,6 +1732,7 @@ export class CloudBuildClient {
request = request || {};
options = options || {};
const callSettings = new gax.CallSettings(options);
this.initialize();
return this._descriptors.page.listBuildTriggers.createStream(
this._innerApiCalls.listBuildTriggers as gax.GaxCall,
request,
Expand All @@ -1700,8 +1746,9 @@ export class CloudBuildClient {
* The client will no longer be usable and all future behavior is undefined.
*/
close(): Promise<void> {
this.initialize();
if (!this._terminated) {
return this.cloudBuildStub.then(stub => {
return this.cloudBuildStub!.then(stub => {
this._terminated = true;
stub.close();
});
Expand Down
7 changes: 4 additions & 3 deletions synth.metadata
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,12 +1,13 @@
{
"updateTime": "2020-02-29T19:14:13.934361Z",
"updateTime": "2020-03-05T23:03:38.966192Z",
"sources": [
{
"git": {
"name": "googleapis",
"remote": "https://github.com/googleapis/googleapis.git",
"sha": "83c6f84035ee0f80eaa44d8b688a010461cc4080",
"internalRef": "297918498"
"sha": "f0b581b5bdf803e45201ecdb3688b60e381628a8",
"internalRef": "299181282",
"log": "f0b581b5bdf803e45201ecdb3688b60e381628a8\nfix: recommendationengine/v1beta1 update some comments\n\nPiperOrigin-RevId: 299181282\n\n10e9a0a833dc85ff8f05b2c67ebe5ac785fe04ff\nbuild: add generated BUILD file for Routes Preferred API\n\nPiperOrigin-RevId: 299164808\n\n86738c956a8238d7c77f729be78b0ed887a6c913\npublish v1p1beta1: update with absolute address in comments\n\nPiperOrigin-RevId: 299152383\n\n73d9f2ad4591de45c2e1f352bc99d70cbd2a6d95\npublish v1: update with absolute address in comments\n\nPiperOrigin-RevId: 299147194\n\nd2158f24cb77b0b0ccfe68af784c6a628705e3c6\npublish v1beta2: update with absolute address in comments\n\nPiperOrigin-RevId: 299147086\n\n7fca61292c11b4cd5b352cee1a50bf88819dd63b\npublish v1p2beta1: update with absolute address in comments\n\nPiperOrigin-RevId: 299146903\n\n583b7321624736e2c490e328f4b1957335779295\npublish v1p3beta1: update with absolute address in comments\n\nPiperOrigin-RevId: 299146674\n\n638253bf86d1ce1c314108a089b7351440c2f0bf\nfix: add java_multiple_files option for automl text_sentiment.proto\n\nPiperOrigin-RevId: 298971070\n\n373d655703bf914fb8b0b1cc4071d772bac0e0d1\nUpdate Recs AI Beta public bazel file\n\nPiperOrigin-RevId: 298961623\n\ndcc5d00fc8a8d8b56f16194d7c682027b2c66a3b\nfix: add java_multiple_files option for automl classification.proto\n\nPiperOrigin-RevId: 298953301\n\na3f791827266f3496a6a5201d58adc4bb265c2a3\nchore: automl/v1 publish annotations and retry config\n\nPiperOrigin-RevId: 298942178\n\n01c681586d8d6dbd60155289b587aee678530bd9\nMark return_immediately in PullRequest deprecated.\n\nPiperOrigin-RevId: 298893281\n\nc9f5e9c4bfed54bbd09227e990e7bded5f90f31c\nRemove out of date documentation for predicate support on the Storage API\n\nPiperOrigin-RevId: 298883309\n\nfd5b3b8238d783b04692a113ffe07c0363f5de0f\ngenerate webrisk v1 proto\n\nPiperOrigin-RevId: 298847934\n\n541b1ded4abadcc38e8178680b0677f65594ea6f\nUpdate cloud asset api v1p4beta1.\n\nPiperOrigin-RevId: 298686266\n\nc0d171acecb4f5b0bfd2c4ca34fc54716574e300\n Updated to include the Notification v1 API.\n\nPiperOrigin-RevId: 298652775\n\n2346a9186c0bff2c9cc439f2459d558068637e05\nAdd Service Directory v1beta1 protos and configs\n\nPiperOrigin-RevId: 298625638\n\na78ed801b82a5c6d9c5368e24b1412212e541bb7\nPublishing v3 protos and configs.\n\nPiperOrigin-RevId: 298607357\n\n4a180bfff8a21645b3a935c2756e8d6ab18a74e0\nautoml/v1beta1 publish proto updates\n\nPiperOrigin-RevId: 298484782\n\n6de6e938b7df1cd62396563a067334abeedb9676\nchore: use the latest gapic-generator and protoc-java-resource-name-plugin in Bazel workspace.\n\nPiperOrigin-RevId: 298474513\n\n244ab2b83a82076a1fa7be63b7e0671af73f5c02\nAdds service config definition for bigqueryreservation v1\n\nPiperOrigin-RevId: 298455048\n\n"
}
},
{
Expand Down
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