Stackdriver Logging V2 Client - Class MetricsServiceV2Client (1.25.5)

Reference documentation and code samples for the Stackdriver Logging V2 Client class MetricsServiceV2Client.

Service Description: Service for configuring logs-based metrics.

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:

$metricsServiceV2Client = new MetricsServiceV2Client();
try {
    $formattedParent = $metricsServiceV2Client->projectName('[PROJECT]');
    $metric = new LogMetric();
    $response = $metricsServiceV2Client->createLogMetric($formattedParent, $metric);
} finally {
    $metricsServiceV2Client->close();
}

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parseName method to extract the individual identifiers contained within formatted names that are returned by the API.

Methods

logMetricName

Formats a string containing the fully-qualified path to represent a log_metric resource.

Parameters
Name	Description
`project`	`string`
`metric`	`string`

Returns
Type	Description
`string`	The formatted log_metric resource.

projectName

Formats a string containing the fully-qualified path to represent a project resource.

Parameter
Name	Description
`project`	`string`

Returns
Type	Description
`string`	The formatted project resource.

parseName

Parses a formatted name string and returns an associative array of the components in the name.

The following name formats are supported: Template: Pattern

logMetric: projects/{project}/metrics/{metric}
project: projects/{project}

The optional $template argument can be supplied to specify a particular pattern, and must match one of the templates listed above. If no $template argument is provided, or if the $template argument does not match one of the templates listed, then parseName will check each of the supported templates, and return the first match.

Parameters
Name	Description
`formattedName`	`string` The formatted name string
`template`	`string` Optional name of template to match

Returns
Type	Description
`array`	An associative array from name component IDs to component values.

__construct

Constructor.

Parameters
Name	Description
`options`	`array` Optional. Options for configuring the service API wrapper.
`↳ apiEndpoint`	`string` The address of the API remote host. May optionally include the port, formatted as "
`↳ credentials`	`string\|array\|FetchAuthTokenInterface\|CredentialsWrapper` The credentials to be used by the client to authorize API calls. This option accepts either a path to a credentials file, or a decoded credentials file as a PHP array. Advanced usage: In addition, this option can also accept a pre-constructed Google\Auth\FetchAuthTokenInterface object or Google\ApiCore\CredentialsWrapper object. Note that when one of these objects are provided, any settings in $credentialsConfig will be ignored.
`↳ credentialsConfig`	`array` Options used to configure credentials, including auth token caching, for the client. For a full list of supporting configuration options, see Google\ApiCore\CredentialsWrapper::build() .
`↳ disableRetries`	`bool` Determines whether or not retries defined by the client configuration should be disabled. Defaults to `false`.
`↳ clientConfig`	`string\|array` Client method configuration, including retry settings. This option can be either a path to a JSON file, or a PHP array containing the decoded JSON data. By default this settings points to the default client config file, which is provided in the resources folder.
`↳ transport`	`string\|TransportInterface` The transport used for executing network requests. May be either the string `rest` or `grpc`. Defaults to `grpc` if gRPC support is detected on the system. Advanced usage: Additionally, it is possible to pass in an already instantiated Google\ApiCore\Transport\TransportInterface object. Note that when this object is provided, any settings in $transportConfig, and any $apiEndpoint setting, will be ignored.
`↳ transportConfig`	`array` Configuration options that will be used to construct the transport. Options for each supported transport type should be passed in a key for that transport. For example: $transportConfig = [ 'grpc' => [...], 'rest' => [...], ]; See the Google\ApiCore\Transport\GrpcTransport::build() and Google\ApiCore\Transport\RestTransport::build() methods for the supported options.
`↳ clientCertSource`	`callable` A callable which returns the client cert as a string. This can be used to provide a certificate and private key to the transport layer for mTLS.

createLogMetric

Creates a logs-based metric.

Parameters
Name	Description
`parent`	`string` Required. The resource name of the project in which to create the metric: "projects/[PROJECT_ID]" The new metric must be provided in the request.
`metric`	`Google\Cloud\Logging\V2\LogMetric` Required. The new logs-based metric, which must not have an identifier that already exists.
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\Logging\V2\LogMetric`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Logging\V2\LogMetric;
use Google\Cloud\Logging\V2\MetricsServiceV2Client;

/**
 * @param string $formattedParent The resource name of the project in which to create the metric:
 *
 *                                "projects/[PROJECT_ID]"
 *
 *                                The new metric must be provided in the request. Please see
 *                                {@see MetricsServiceV2Client::projectName()} for help formatting this field.
 * @param string $metricName      The client-assigned metric identifier.
 *                                Examples: `"error_count"`, `"nginx/requests"`.
 *
 *                                Metric identifiers are limited to 100 characters and can include only the
 *                                following characters: `A-Z`, `a-z`, `0-9`, and the special characters
 *                                `_-.,+!*',()%/`. The forward-slash character (`/`) denotes a hierarchy of
 *                                name pieces, and it cannot be the first character of the name.
 *
 *                                This field is the `[METRIC_ID]` part of a metric resource name in the
 *                                format "projects/[PROJECT_ID]/metrics/[METRIC_ID]". Example: If the
 *                                resource name of a metric is
 *                                `"projects/my-project/metrics/nginx%2Frequests"`, this field's value is
 *                                `"nginx/requests"`.
 * @param string $metricFilter    An [advanced logs
 *                                filter](https://cloud.google.com/logging/docs/view/advanced_filters) which
 *                                is used to match log entries. Example:
 *
 *                                "resource.type=gae_app AND severity>=ERROR"
 *
 *                                The maximum length of the filter is 20000 characters.
 */
function create_log_metric_sample(
    string $formattedParent,
    string $metricName,
    string $metricFilter
): void {
    // Create a client.
    $metricsServiceV2Client = new MetricsServiceV2Client();

    // Prepare any non-scalar elements to be passed along with the request.
    $metric = (new LogMetric())
        ->setName($metricName)
        ->setFilter($metricFilter);

    // Call the API and handle any network failures.
    try {
        /** @var LogMetric $response */
        $response = $metricsServiceV2Client->createLogMetric($formattedParent, $metric);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedParent = MetricsServiceV2Client::projectName('[PROJECT]');
    $metricName = '[NAME]';
    $metricFilter = '[FILTER]';

    create_log_metric_sample($formattedParent, $metricName, $metricFilter);
}

deleteLogMetric

Deletes a logs-based metric.

Parameters
Name	Description
`metricName`	`string` Required. The resource name of the metric to delete: "projects/[PROJECT_ID]/metrics/[METRIC_ID]"
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Logging\V2\MetricsServiceV2Client;

/**
 * @param string $formattedMetricName The resource name of the metric to delete:
 *
 *                                    "projects/[PROJECT_ID]/metrics/[METRIC_ID]"
 *                                    Please see {@see MetricsServiceV2Client::logMetricName()} for help formatting this field.
 */
function delete_log_metric_sample(string $formattedMetricName): void
{
    // Create a client.
    $metricsServiceV2Client = new MetricsServiceV2Client();

    // Call the API and handle any network failures.
    try {
        $metricsServiceV2Client->deleteLogMetric($formattedMetricName);
        printf('Call completed successfully.' . PHP_EOL);
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedMetricName = MetricsServiceV2Client::logMetricName('[PROJECT]', '[METRIC]');

    delete_log_metric_sample($formattedMetricName);
}

getLogMetric

Gets a logs-based metric.

Parameters
Name	Description
`metricName`	`string` Required. The resource name of the desired metric: "projects/[PROJECT_ID]/metrics/[METRIC_ID]"
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\Logging\V2\LogMetric`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Logging\V2\LogMetric;
use Google\Cloud\Logging\V2\MetricsServiceV2Client;

/**
 * @param string $formattedMetricName The resource name of the desired metric:
 *
 *                                    "projects/[PROJECT_ID]/metrics/[METRIC_ID]"
 *                                    Please see {@see MetricsServiceV2Client::logMetricName()} for help formatting this field.
 */
function get_log_metric_sample(string $formattedMetricName): void
{
    // Create a client.
    $metricsServiceV2Client = new MetricsServiceV2Client();

    // Call the API and handle any network failures.
    try {
        /** @var LogMetric $response */
        $response = $metricsServiceV2Client->getLogMetric($formattedMetricName);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedMetricName = MetricsServiceV2Client::logMetricName('[PROJECT]', '[METRIC]');

    get_log_metric_sample($formattedMetricName);
}

listLogMetrics

Lists logs-based metrics.

Parameters
Name	Description
`parent`	`string` Required. The name of the project containing the metrics: "projects/[PROJECT_ID]"
`optionalArgs`	`array` Optional.
`↳ pageToken`	`string` A page token is used to specify a page of values to be returned. If no page token is specified (the default), the first page of values will be returned. Any page token used here must have been generated by a previous call to the API.
`↳ pageSize`	`int` The maximum number of resources contained in the underlying API response. The API may return fewer values in a page, even if there are additional values to be retrieved.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\ApiCore\PagedListResponse`

Example

use Google\ApiCore\ApiException;
use Google\ApiCore\PagedListResponse;
use Google\Cloud\Logging\V2\LogMetric;
use Google\Cloud\Logging\V2\MetricsServiceV2Client;

/**
 * @param string $formattedParent The name of the project containing the metrics:
 *
 *                                "projects/[PROJECT_ID]"
 *                                Please see {@see MetricsServiceV2Client::projectName()} for help formatting this field.
 */
function list_log_metrics_sample(string $formattedParent): void
{
    // Create a client.
    $metricsServiceV2Client = new MetricsServiceV2Client();

    // Call the API and handle any network failures.
    try {
        /** @var PagedListResponse $response */
        $response = $metricsServiceV2Client->listLogMetrics($formattedParent);

        /** @var LogMetric $element */
        foreach ($response as $element) {
            printf('Element data: %s' . PHP_EOL, $element->serializeToJsonString());
        }
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedParent = MetricsServiceV2Client::projectName('[PROJECT]');

    list_log_metrics_sample($formattedParent);
}

updateLogMetric

Creates or updates a logs-based metric.

Parameters
Name	Description
`metricName`	`string` Required. The resource name of the metric to update: "projects/[PROJECT_ID]/metrics/[METRIC_ID]" The updated metric must be provided in the request and it's `name` field must be the same as `[METRIC_ID]` If the metric does not exist in `[PROJECT_ID]`, then a new metric is created.
`metric`	`Google\Cloud\Logging\V2\LogMetric` Required. The updated metric.
`optionalArgs`	`array` Optional.
`↳ retrySettings`	`RetrySettings\|array` Retry settings to use for this call. Can be a Google\ApiCore\RetrySettings object, or an associative array of retry settings parameters. See the documentation on Google\ApiCore\RetrySettings for example usage.

Returns
Type	Description
`Google\Cloud\Logging\V2\LogMetric`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Logging\V2\LogMetric;
use Google\Cloud\Logging\V2\MetricsServiceV2Client;

/**
 * @param string $formattedMetricName The resource name of the metric to update:
 *
 *                                    "projects/[PROJECT_ID]/metrics/[METRIC_ID]"
 *
 *                                    The updated metric must be provided in the request and it's
 *                                    `name` field must be the same as `[METRIC_ID]` If the metric
 *                                    does not exist in `[PROJECT_ID]`, then a new metric is created. Please see
 *                                    {@see MetricsServiceV2Client::logMetricName()} for help formatting this field.
 * @param string $metricName          The client-assigned metric identifier.
 *                                    Examples: `"error_count"`, `"nginx/requests"`.
 *
 *                                    Metric identifiers are limited to 100 characters and can include only the
 *                                    following characters: `A-Z`, `a-z`, `0-9`, and the special characters
 *                                    `_-.,+!*',()%/`. The forward-slash character (`/`) denotes a hierarchy of
 *                                    name pieces, and it cannot be the first character of the name.
 *
 *                                    This field is the `[METRIC_ID]` part of a metric resource name in the
 *                                    format "projects/[PROJECT_ID]/metrics/[METRIC_ID]". Example: If the
 *                                    resource name of a metric is
 *                                    `"projects/my-project/metrics/nginx%2Frequests"`, this field's value is
 *                                    `"nginx/requests"`.
 * @param string $metricFilter        An [advanced logs
 *                                    filter](https://cloud.google.com/logging/docs/view/advanced_filters) which
 *                                    is used to match log entries. Example:
 *
 *                                    "resource.type=gae_app AND severity>=ERROR"
 *
 *                                    The maximum length of the filter is 20000 characters.
 */
function update_log_metric_sample(
    string $formattedMetricName,
    string $metricName,
    string $metricFilter
): void {
    // Create a client.
    $metricsServiceV2Client = new MetricsServiceV2Client();

    // Prepare any non-scalar elements to be passed along with the request.
    $metric = (new LogMetric())
        ->setName($metricName)
        ->setFilter($metricFilter);

    // Call the API and handle any network failures.
    try {
        /** @var LogMetric $response */
        $response = $metricsServiceV2Client->updateLogMetric($formattedMetricName, $metric);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * This sample has been automatically generated and should be regarded as a code
 * template only. It will require modifications to work:
 *  - It may require correct/in-range values for request initialization.
 *  - It may require specifying regional endpoints when creating the service client,
 *    please see the apiEndpoint client configuration option for more details.
 */
function callSample(): void
{
    $formattedMetricName = MetricsServiceV2Client::logMetricName('[PROJECT]', '[METRIC]');
    $metricName = '[NAME]';
    $metricFilter = '[FILTER]';

    update_log_metric_sample($formattedMetricName, $metricName, $metricFilter);
}

Constants

SERVICE_NAME

Value: 'google.logging.v2.MetricsServiceV2'

The name of the service.

SERVICE_ADDRESS

Value: 'logging.googleapis.com'

The default address of the service.

DEFAULT_SERVICE_PORT

Value: 443

The default port of the service.

CODEGEN_NAME

Value: 'gapic'

The name of the code generator, to be included in the agent header.