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<?php
/**
* Copyright 2015 Google Inc. All Rights Reserved.
*
* Licensed 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.
*/
namespace Google\Cloud\Core;
use Google\Auth\HttpHandler\Guzzle6HttpHandler;
use Google\Auth\HttpHandler\HttpHandlerFactory;
use Google\Cloud\BigQuery\BigQueryClient;
use Google\Cloud\Datastore\DatastoreClient;
use Google\Cloud\Firestore\FirestoreClient;
use Google\Cloud\Language\LanguageClient;
use Google\Cloud\Logging\LoggingClient;
use Google\Cloud\PubSub\PubSubClient;
use Google\Cloud\Spanner\SpannerClient;
use Google\Cloud\Speech\SpeechClient;
use Google\Cloud\Storage\StorageClient;
use Google\Cloud\Trace\TraceClient;
use Google\Cloud\Translate\V2\TranslateClient;
use Google\Cloud\Vision\VisionClient;
use Psr\Cache\CacheItemPoolInterface;
/**
* Google Cloud Platform is a set of modular cloud-based services that allow you
* to create anything from simple websites to complex applications.
*
* This API aims to expose access to these services in a way that is intuitive
* and easy to use for PHP enthusiasts. The ServiceBuilder instance exposes
* factory methods which grant access to the various services contained within
* the API.
*
* Configuration is simple. Pass in an array of configuration options to the
* constructor up front which can be shared between clients or specify the
* options for the specific services you wish to access, e.g. Datastore, or
* Storage.
*
* Please note that unless otherwise noted the examples below take advantage of
* [Application Default Credentials](https://developers.google.com/identity/protocols/application-default-credentials).
*/
class ServiceBuilder
{
/**
* @var array Configuration options to be used between clients.
*/
private $config = [];
/**
* Pass in an array of configuration options which will be shared between
* clients.
*
* Example:
* ```
* use Google\Cloud\Core\ServiceBuilder;
*
* $cloud = new ServiceBuilder([
* 'projectId' => 'myAwesomeProject'
* ]);
* ```
*
* @param array $config [optional] {
* Configuration options.
*
* @type string $projectId The project ID from the Google Developer's
* Console.
* @type CacheItemPoolInterface $authCache A cache for storing access
* tokens. **Defaults to** a simple in memory implementation.
* @type array $authCacheOptions Cache configuration options.
* @type callable $authHttpHandler A handler used to deliver Psr7
* requests specifically for authentication.
* @type callable $httpHandler A handler used to deliver Psr7 requests.
* Only valid for requests sent over REST.
* @type array $keyFile The contents of the service account credentials
* .json file retrieved from the Google Developer's Console.
* Ex: `json_decode(file_get_contents($path), true)`.
* @type string $keyFilePath The full path to your service account
* credentials .json file retrieved from the Google Developers
* Console.
* @type int $retries Number of retries for a failed request.
* **Defaults to** `3`.
* @type array $scopes Scopes to be used for the request.
* }
*/
public function __construct(array $config = [])
{
$this->config = $this->resolveConfig($config);
}
/**
* Google Cloud BigQuery allows you to create, manage, share and query
* data. Find more information at the
* [Google Cloud BigQuery Docs](https://cloud.google.com/bigquery/docs).
*
* Example:
* ```
* $bigQuery = $cloud->bigQuery();
* ```
*
* @param array $config [optional] {
* Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the other available options.
*
* @type bool $returnInt64AsObject If true, 64 bit integers will be
* returned as a {@see Google\Cloud\Core\Int64} object for 32 bit
* platform compatibility. **Defaults to** false.
* @type string $location If provided, determines the default geographic
* location used when creating datasets and managing jobs. Please
* note: This is only required for jobs started outside of the US
* and EU regions. Also, if location metadata has already been
* fetched over the network it will take precedent over this
* setting.
* }
* @return BigQueryClient
*/
public function bigQuery(array $config = [])
{
return $this->createClient(BigQueryClient::class, 'bigquery', $config);
}
/**
* Google Cloud Datastore is a highly-scalable NoSQL database for your
* applications. Find more information at the
* [Google Cloud Datastore docs](https://cloud.google.com/datastore/docs/).
*
* Example:
* ```
* $datastore = $cloud->datastore();
* ```
*
* @param array $config [optional] {
* Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the other available options.
*
* @type bool $returnInt64AsObject If true, 64 bit integers will be
* returned as a {@see Google\Cloud\Core\Int64} object for 32 bit
* platform compatibility. **Defaults to** false.
* @return DatastoreClient
*/
public function datastore(array $config = [])
{
return $this->createClient(DatastoreClient::class, 'datastore', $config);
}
/**
* Cloud Firestore is a flexible, scalable, realtime database for mobile,
* web, and server development. Find more information at the
* [Google Cloud firestore docs](https://cloud.google.com/firestore/docs/).
*
* Example:
* ```
* $firestore = $cloud->firestore();
* ```
*
* @param array $config [optional] {
* Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the other available options.
*
* @type bool $returnInt64AsObject If true, 64 bit integers will be
* returned as a {@see Google\Cloud\Core\Int64} object for 32 bit
* platform compatibility. **Defaults to** false.
* @return FirestoreClient
*/
public function firestore(array $config = [])
{
return $this->createClient(FirestoreClient::class, 'firestore', $config);
}
/**
* Google Stackdriver Logging allows you to store, search, analyze, monitor,
* and alert on log data and events from Google Cloud Platform and Amazon
* Web Services. Find more information at the
* [Google Stackdriver Logging docs](https://cloud.google.com/logging/docs/).
*
* Example:
* ```
* $logging = $cloud->logging();
* ```
*
* @param array $config [optional] Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the available options.
* @return LoggingClient
*/
public function logging(array $config = [])
{
return $this->createClient(LoggingClient::class, 'logging', $config);
}
/**
* Google Cloud Natural Language provides natural language understanding
* technologies to developers, including sentiment analysis, entity
* recognition, and syntax analysis. Currently only English, Spanish,
* and Japanese textual context are supported. Find more information at the
* [Google Cloud Natural Language docs](https://cloud.google.com/natural-language/docs/).
*
* Example:
* ```
* $language = $cloud->language();
* ```
*
* @param array $config [optional] Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the available options.
* @return LanguageClient
*/
public function language(array $config = [])
{
return $this->createClient(LanguageClient::class, 'language', $config);
}
/**
* Google Cloud Pub/Sub allows you to send and receive messages between
* independent applications. Find more information at the
* [Google Cloud Pub/Sub docs](https://cloud.google.com/pubsub/docs/).
*
* Example:
* ```
* $pubsub = $cloud->pubsub();
* ```
*
* @param array $config [optional] {
* Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the other available options.
*
* @type string $transport The transport type used for requests. May be
* either `grpc` or `rest`. **Defaults to** `grpc` if gRPC support
* is detected on the system.
* @return PubSubClient
*/
public function pubsub(array $config = [])
{
return $this->createClient(PubSubClient::class, 'pubsub', $config);
}
/**
* Google Cloud Spanner is a highly scalable, transactional, managed, NewSQL
* database service. Find more information at
* [Google Cloud Spanner API docs](https://cloud.google.com/spanner/).
*
* Example:
* ```
* $spanner = $cloud->spanner();
* ```
*
* @param array $config [optional] {
* Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the other available options.
*
* @type bool $returnInt64AsObject If true, 64 bit integers will be
* returned as a {@see Google\Cloud\Core\Int64} object for 32 bit
* platform compatibility. **Defaults to** false.
* }
* @return SpannerClient
*/
public function spanner(array $config = [])
{
return $this->createClient(SpannerClient::class, 'spanner', $config);
}
/**
* Google Cloud Speech enables easy integration of Google speech recognition
* technologies into developer applications. Send audio and receive a text
* transcription from the Cloud Speech API service. Find more information at
* the [Google Cloud Speech API docs](https://cloud.google.com/speech/docs/).
*
* Example:
* ```
* $speech = $cloud->speech([
* 'languageCode' => 'en-US'
* ]);
* ```
*
* @param array $config [optional] {
* Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the other available options.
*
* @type string $languageCode The language of the content to
* be recognized. Only BCP-47 (e.g., `"en-US"`, `"es-ES"`)
* language codes are accepted. See
* [Language Support](https://cloud.google.com/speech/docs/languages)
* for a list of the currently supported language codes.
* @return SpeechClient
*/
public function speech(array $config = [])
{
return $this->createClient(SpeechClient::class, 'speech', $config);
}
/**
* Google Cloud Storage allows you to store and retrieve data on Google's
* infrastructure. Find more information at the
* [Google Cloud Storage API docs](https://developers.google.com/storage).
*
* Example:
* ```
* $storage = $cloud->storage();
* ```
*
* @param array $config [optional] Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the available options.
* @return StorageClient
*/
public function storage(array $config = [])
{
return $this->createClient(StorageClient::class, 'storage', $config);
}
/**
* Google Stackdriver Trace allows you to collect latency data from your applications
* and display it in the Google Cloud Platform Console. Find more information at
* [Stackdriver Trace API docs](https://cloud.google.com/trace/docs/).
*
* Example:
* ```
* $trace = $cloud->trace();
* ```
*
* @param array $config [optional] Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the available options.
* @return TraceClient
*/
public function trace(array $config = [])
{
return $this->createClient(TraceClient::class, 'trace', $config);
}
/**
* Google Cloud Vision allows you to understand the content of an image,
* classify images into categories, detect text, objects, faces and more.
* Find more information at the
* [Google Cloud Vision docs](https://cloud.google.com/vision/docs/).
*
* Example:
* ```
* $vision = $cloud->vision();
* ```
*
* @param array $config [optional] Configuration options. See
* {@see Google\Cloud\Core\ServiceBuilder::__construct()} for the available options.
* @return VisionClient
*/
public function vision(array $config = [])
{
return $this->createClient(VisionClient::class, 'vision', $config);
}
/**
* Google Cloud Translation provides the ability to dynamically translate
* text between thousands of language pairs and lets websites and programs
* integrate with translation service programmatically.
*
* The Google Cloud Translation API is available as a paid
* service. See the [Pricing](https://cloud.google.com/translation/v2/pricing)
* and [FAQ](https://cloud.google.com/translation/v2/faq) pages for details.
* Find more information at the the
* [Google Cloud Translation docs](https://cloud.google.com/translation/docs/).
*
* Please note that while the Google Cloud Translation API supports
* authentication via service account and application default credentials
* like other Cloud Platform APIs, it also supports authentication via a
* public API access key. If you wish to authenticate using an API key,
* follow the
* [before you begin](https://cloud.google.com/translation/v2/translating-text-with-rest#before-you-begin)
* instructions to learn how to generate a key.
*
* Example:
* ```
* use Google\Cloud\Core\ServiceBuilder;
*
* $builder = new ServiceBuilder([
* 'key' => 'YOUR_KEY'
* ]);
*
* $translate = $builder->translate();
* ```
*
* @param array $config [optional] {
* Configuration options.
*
* @type string $key A public API access key.
* @type string $target The target language to assign to the client.
* Defaults to `en` (English).
* @type callable $httpHandler A handler used to deliver Psr7 requests.
* Only valid for requests sent over REST.
* @type int $retries Number of retries for a failed request.
* **Defaults to** `3`.
* }
* @return TranslateClient
*/
public function translate(array $config = [])
{
return $this->createClient(TranslateClient::class, 'translate', $config);
}
/**
* Create the client library, or error if not installed.
*
* @param string $class The class to create.
* @param string $packageName The name of the package
* @param array $config Configuration options.
*/
private function createClient($class, $packageName, array $config = [])
{
if (class_exists($class)) {
return new $class($this->resolveConfig($config + $this->config));
}
throw new \Exception(sprintf(
'The google/cloud-%s package is missing and must be installed.',
$packageName
));
}
/**
* Resolves configuration options.
*
* @param array $config
* @return array
*/
private function resolveConfig(array $config)
{
if (!isset($config['httpHandler'])) {
$config['httpHandler'] = HttpHandlerFactory::build();
}
if (!isset($config['asyncHttpHandler'])) {
$config['asyncHttpHandler'] = $config['httpHandler'] instanceof Guzzle6HttpHandler
? [$config['httpHandler'], 'async']
: [HttpHandlerFactory::build(), 'async'];
}
return array_merge($this->config, $config);
}
}
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