Object Storage Service:Pesquisa vetorial

Java

Apenas o Java SDK 3.18.2 e versões posteriores oferecem suporte à pesquisa vetorial. Para mais informações, consulte Pesquisa vetorial (Java SDK V1).

Python

Para mais informações, consulte Pesquisa vetorial.

import argparse
import alibabacloud_oss_v2 as oss

# Create a command-line argument parser and add a description.
parser = argparse.ArgumentParser(description="open meta query sample")
# Add the required command-line argument --region to specify the region where the bucket is located.
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)
# Add the required command-line argument --bucket to specify the name of the bucket to operate on.
parser.add_argument('--bucket', help='The name of the bucket.', required=True)
# Add the optional command-line argument --endpoint to specify the domain name used to access OSS.
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')

def main():
    # Parse command-line arguments.
    args = parser.parse_args()

    # Load authentication information from environment variables.
    credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()

    # Use the default configurations provided by the SDK.
    cfg = oss.config.load_default()
    # Set the authentication information provider.
    cfg.credentials_provider = credentials_provider
    # Set the region based on command-line arguments.
    cfg.region = args.region
    # If an endpoint is provided, update the endpoint in the configuration.
    if args.endpoint is not None:
        cfg.endpoint = args.endpoint

    # Create an OSS client.
    client = oss.Client(cfg)

    # Build an OpenMetaQueryRequest to enable the AISearch feature for the bucket.
    result = client.open_meta_query(oss.OpenMetaQueryRequest(
            bucket=args.bucket,
            mode='semantic',# Set to "semantic" to select AISearch.
    ))

    # Print the status code and request ID of the request.
    print(f'status code: {result.status_code},'
          f' request id: {result.request_id},'
          )

# Call the main function when running as the main program.
if __name__ == "__main__":
    main()

Go

Para mais informações, consulte Pesquisa vetorial (Go SDK V2).

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
)

var (
	region     string
	bucketName string
)

func init() {
	// Set a command-line flag to specify the region.
	flag.StringVar(&region, "region", "", "The region in which the bucket is located.")
	// Set a command-line flag to specify the bucket name.
	flag.StringVar(&bucketName, "bucket", "", "The name of the bucket.")
}

func main() {
	flag.Parse()

	// Check if the bucket name is provided.
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	// Check if the region is provided.
	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	// Create a client configuration and use credentials from environment variables.
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region)

	client := oss.NewClient(cfg) // Create an OSS client.

	// Create a request to enable AISearch for the specified bucket.
	request := &oss.OpenMetaQueryRequest{
		Bucket: oss.Ptr(bucketName),
		Mode:   oss.Ptr("semantic"), // Set mode to "semantic" to enable semantic search capabilities.
	}
	result, err := client.OpenMetaQuery(context.TODO(), request)
	if err != nil {
		log.Fatalf("failed to open meta query %v", err)
	}

	log.Printf("open meta query result:%#v\n", result)
}

PHP

Para mais informações, consulte Pesquisa vetorial (PHP SDK V2).

<?php

// Include the autoload file to load dependencies.
require_once __DIR__ . '/../vendor/autoload.php';

use AlibabaCloud\Oss\V2 as Oss;

// Define and describe command-line parameters.
$optsdesc = [
    "region" => ['help' => 'The region in which the bucket is located.', 'required' => True], // (Required) The region in which the bucket resides.
    "endpoint" => ['help' => 'The domain names that other services can use to access OSS.', 'required' => False], // (Optional) The endpoint that other services can use to access OSS.
    "bucket" => ['help' => 'The name of the bucket', 'required' => True], // (Required) The name of the bucket.
];

// Convert the descriptions to a list of long options required by getopt.
// Add a colon (:) to the end of each parameter to indicate that a value is required.
$longopts = \array_map(function ($key) {
    return "$key:";
}, array_keys($optsdesc));

// Parse the command-line parameters.
$options = getopt("", $longopts);

// Check whether the required parameters are configured.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help']; // Obtain help information for the parameters.
        echo "Error: the following arguments are required: --$key, $help" . PHP_EOL;
        exit(1); // Exit the program if a required parameter is missing.
    }
}

// Assign the values parsed from the command-line parameters to the corresponding variables.
$region = $options["region"]; // The region in which the bucket resides.
$bucket = $options["bucket"]; // The name of the bucket.

// Load access credentials from environment variables.
// Use EnvironmentVariableCredentialsProvider to retrieve the AccessKey ID and AccessKey secret from environment variables.
$credentialsProvider = new Oss\Credentials\EnvironmentVariableCredentialsProvider();

// Use the default configuration of the SDK.
$cfg = Oss\Config::loadDefault();
$cfg->setCredentialsProvider($credentialsProvider); // Specify the credential provider.
$cfg->setRegion($region); // Specify the region in which the bucket resides.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]); // Specify the endpoint if one is provided.
}

// Create an OSSClient instance.
$client = new Oss\Client($cfg);

// Enable the AISearch feature.
$request = new Oss\Models\OpenMetaQueryRequest($bucket,'semantic');
$result = $client->openMetaQuery($request);

printf(
   'status code:' . $result->statusCode . PHP_EOL .
   'request id:' . $result->requestId
);

Java

Apenas o Java SDK 3.18.2 e versões posteriores oferecem suporte à pesquisa vetorial. Para mais informações, consulte Pesquisa vetorial (Java SDK V1).

Python

Para mais informações, consulte Pesquisa vetorial.

import argparse
import alibabacloud_oss_v2 as oss

# Create a command-line argument parser to process command-line input.
parser = argparse.ArgumentParser(description="do meta query semantic sample")
# Add the necessary command-line arguments.
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)  # The region where the bucket is located.
parser.add_argument('--bucket', help='The name of the bucket.', required=True)  # The name of the bucket.
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')  # The OSS domain name, which is optional.

def main():
    # Parse command-line arguments.
    args = parser.parse_args()

    # Load access credentials from environment variables.
    # Before running, you need to set the environment variables: OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET.
    credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()

    # Load the default SDK configurations.
    cfg = oss.config.load_default()
    # Set the credential provider.
    cfg.credentials_provider = credentials_provider
    # Set the region.
    cfg.region = args.region
    # If an endpoint is provided, update the endpoint in the configuration.
    if args.endpoint is not None:
        cfg.endpoint = args.endpoint

    # Create an OSS client instance.
    client = oss.Client(cfg)

    # Initiate a metadata query request in AISearch mode.
    result = client.do_meta_query(oss.DoMetaQueryRequest(
            bucket=args.bucket,
            mode='semantic',
            meta_query=oss.MetaQuery(
                max_results=1000,
                query='An aerial view of a snow-covered forest',
                order='desc',
                media_types=oss.MetaQueryMediaTypes(
                    media_type=['image']
                ),
                simple_query='{"Operation":"gt", "Field": "Size", "Value": "30"}',
            ),
    ))

    # Print the retrieval results.
    print(vars(result))

if __name__ == "__main__":
    main()

Go

Para mais informações, consulte Pesquisa vetorial (Go SDK V2).

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
)

var (
	region     string
	bucketName string
)

func init() {
	// Set a command-line flag to specify the region.
	flag.StringVar(&region, "region", "", "The region in which the bucket is located.")
	// Set a command-line flag to specify the bucket name.
	flag.StringVar(&bucketName, "bucket", "", "The name of the bucket.")
}

func main() {
	flag.Parse()

	// Check if the bucket name is provided.
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	// Check if the region is provided.
	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	// Create a client configuration and use credentials from environment variables and the specified region.
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region)

	client := oss.NewClient(cfg) // Create an OSS client.

	// Perform an AISearch operation.
	request := &oss.DoMetaQueryRequest{
		Bucket: oss.Ptr(bucketName),
		Mode:   oss.Ptr("semantic"),
		MetaQuery: &oss.MetaQuery{
			MaxResults: oss.Ptr(int64(99)),
			Query:      oss.Ptr("Overlook the snow-covered forest"), // Provide the semantic query string. This is an example.
			MediaTypes: &oss.MetaQueryMediaTypes{
				MediaTypes: []string{"image"}, // Specify the media types to search. In this example, "image".
			},
			SimpleQuery: oss.Ptr(`{"Operation":"gt", "Field": "Size", "Value": "30"}`),
		},
	}
	result, err := client.DoMetaQuery(context.TODO(), request)
	if err != nil {
		log.Fatalf("failed to do meta query %v", err)
	}

	log.Printf("do meta query result:%#v\n", result)
}

PHP

Para mais informações, consulte Pesquisa vetorial (PHP SDK V2).

<?php

// Import the autoloader file to ensure that dependency libraries are correctly loaded.
require_once __DIR__ . '/../vendor/autoload.php';

use AlibabaCloud\Oss\V2 as Oss;

// Define the description of command line arguments.
$optsdesc = [
    "region" => ['help' => 'The region in which the bucket is located.', 'required' => True], // The region where the bucket is located. This parameter is required.
    "endpoint" => ['help' => 'The domain names that other services can use to access OSS.', 'required' => False], // The endpoint that other services can use to access OSS. This parameter is optional.
    "bucket" => ['help' => 'The name of the bucket', 'required' => True], // The name of the bucket. This parameter is required.
];

// Convert the argument description to the long option format required by getopt.
// A colon (:) after each argument indicates that the argument requires a value.
$longopts = \array_map(function ($key) {
    return "$key:";
}, array_keys($optsdesc));

// Parse the command line arguments.
$options = getopt("", $longopts);

// Check whether required arguments are specified.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help']; // Obtain the help information of the argument.
        echo "Error: the following arguments are required: --$key, $help" . PHP_EOL;
        exit(1); // If a required argument is not specified, exit the program.
    }
}

// Extract values from the parsed arguments.
$region = $options["region"]; // The region where the bucket is located.
$bucket = $options["bucket"]; // The name of the bucket.

// Load the credential information from environment variables.
// Use EnvironmentVariableCredentialsProvider to read the Access Key ID and Access Key Secret from environment variables.
$credentialsProvider = new Oss\Credentials\EnvironmentVariableCredentialsProvider();

// Use the default configurations of the SDK.
$cfg = Oss\Config::loadDefault();
$cfg->setCredentialsProvider($credentialsProvider); // Set the credential provider.
$cfg->setRegion($region); // Set the region where the bucket is located.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]); // If an endpoint is provided, set the endpoint.
}

// Create an OSS client instance.
$client = new Oss\Client($cfg);

// Perform an AISearch query for objects that meet the specified conditions.
$request = new Oss\Models\DoMetaQueryRequest($bucket, new Oss\Models\MetaQuery(
    maxResults: 99,
    query: "Overlook the snow-covered forest",
    mediaTypes: new Oss\Models\MetaQueryMediaTypes('image'),
    simpleQuery: '{"Operation":"gt", "Field": "Size", "Value": "30"}',
), 'semantic');

$result = $client->doMetaQuery($request);
printf(
    'status code:' . $result->statusCode . PHP_EOL .
    'request id:' . $result->requestId . PHP_EOL .
    'result:' . var_export($result, true)
);

Java

Apenas o Java SDK 3.18.2 e versões posteriores oferecem suporte à pesquisa vetorial. Para mais informações, consulte Pesquisa vetorial (Java SDK V1).

Python

Para mais informações, consulte Pesquisa vetorial.

import argparse
import alibabacloud_oss_v2 as oss

# Create a command-line argument parser to process command-line arguments.
parser = argparse.ArgumentParser(description="close meta query sample")
parser.add_argument('--region', help='The region in which the bucket is located.', required=True)
parser.add_argument('--bucket', help='The name of the bucket.', required=True)
parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')

def main():
    # Parse command-line arguments.
    args = parser.parse_args()

    # Load credential information from environment variables.
    credentials_provider = oss.credentials.EnvironmentVariableCredentialsProvider()

    # Use the default configurations of the SDK.
    cfg = oss.config.load_default()
    # Set the credential provider to the credentials obtained from environment variables.
    cfg.credentials_provider = credentials_provider
    # Set the region information in the configuration.
    cfg.region = args.region
    # If an endpoint is provided, set the endpoint in the configuration.
    if args.endpoint is not None:
        cfg.endpoint = args.endpoint

    # Create an OSS client.
    client = oss.Client(cfg)

    # Call the close_meta_query method to disable the retrieval feature for the bucket.
    result = client.close_meta_query(oss.CloseMetaQueryRequest(
            bucket=args.bucket,
    ))

    # Print the status code and request ID of the response.
    print(f'status code: {result.status_code}, request id: {result.request_id}')

# Execute the main function when this script is run directly.
if __name__ == "__main__":
    main()

Go

Para mais informações, consulte Pesquisa vetorial (Go SDK V2).

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
)

var (
	region     string
	bucketName string
)

func init() {
	// Set a command-line flag to specify the region.
	flag.StringVar(&region, "region", "", "The region in which the bucket is located.")
	// Set a command-line flag to specify the bucket name.
	flag.StringVar(&bucketName, "bucket", "", "The name of the bucket.")
}


func main() {
	flag.Parse()

	// Check if the bucket name is provided.
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	// Check if the region is provided.
	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	// Create a client configuration and use credentials from environment variables and the specified region.
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region)

	client := oss.NewClient(cfg) // Create an OSS client.

	// Create a request to disable AISearch for the specified bucket.
	request := &oss.CloseMetaQueryRequest{
		Bucket: oss.Ptr(bucketName), // Specify the target bucket.
	}
	result, err := client.CloseMetaQuery(context.TODO(), request)
	if err != nil {
		log.Fatalf("failed to close meta query %v", err)
	}

	log.Printf("close meta query result:%#v\n", result)
}

PHP

Para mais informações, consulte Pesquisa vetorial (PHP SDK V2).

<?php

// Import the autoloader file to ensure that dependency libraries are correctly loaded.
require_once __DIR__ . '/../vendor/autoload.php';

use AlibabaCloud\Oss\V2 as Oss;

// Define the description of command line arguments.
$optsdesc = [
    "region" => ['help' => 'The region in which the bucket is located.', 'required' => True], // The region where the bucket is located. This parameter is required.
    "endpoint" => ['help' => 'The domain names that other services can use to access OSS.', 'required' => False], // The endpoint that other services can use to access OSS. This parameter is optional.
    "bucket" => ['help' => 'The name of the bucket', 'required' => True], // The name of the bucket. This parameter is required.
];

// Convert the argument description to the long option format required by getopt.
// A colon (:) after each argument indicates that the argument requires a value.
$longopts = \array_map(function ($key) {
    return "$key:";
}, array_keys($optsdesc));

// Parse the command line arguments.
$options = getopt("", $longopts);

// Check whether required arguments are specified.
foreach ($optsdesc as $key => $value) {
    if ($value['required'] === True && empty($options[$key])) {
        $help = $value['help']; // Obtain the help information of the argument.
        echo "Error: the following arguments are required: --$key, $help" . PHP_EOL;
        exit(1); // If a required argument is not specified, exit the program.
    }
}

// Extract values from the parsed arguments.
$region = $options["region"]; // The region where the bucket is located.
$bucket = $options["bucket"]; // The name of the bucket.

// Load the credential information from environment variables.
// Use EnvironmentVariableCredentialsProvider to read the Access Key ID and Access Key Secret from environment variables.
$credentialsProvider = new Oss\Credentials\EnvironmentVariableCredentialsProvider();

// Use the default configurations of the SDK.
$cfg = Oss\Config::loadDefault();
$cfg->setCredentialsProvider($credentialsProvider); // Set the credential provider.
$cfg->setRegion($region); // Set the region where the bucket is located.
if (isset($options["endpoint"])) {
    $cfg->setEndpoint($options["endpoint"]); // If an endpoint is provided, set the endpoint.
}

// Create an OSS client instance.
$client = new Oss\Client($cfg);

// Create a CloseMetaQueryRequest object to disable the retrieval feature for the bucket.
$request = new \AlibabaCloud\Oss\V2\Models\CloseMetaQueryRequest(
    bucket: $bucket
);

// Execute the operation to disable the retrieval feature.
$result = $client->closeMetaQuery($request);

// Print the result of disabling the retrieval feature.
printf(
    'status code:' . $result->statusCode . PHP_EOL . // The HTTP status code. For example, 200 indicates that the request is successful.
    'request id:' . $result->requestId . PHP_EOL     // The request ID, which is used for debugging or request tracking.
);