Stackdriver Debugger V2 Client - Class Controller2Client (1.7.0)

Reference documentation and code samples for the Stackdriver Debugger V2 Client class Controller2Client.

Service Description: The Controller service provides the API for orchestrating a collection of debugger agents to perform debugging tasks. These agents are each attached to a process of an application which may include one or more replicas.

The debugger agents register with the Controller to identify the application being debugged, the Debuggee. All agents that register with the same data, represent the same Debuggee, and are assigned the same debuggee_id.

The debugger agents call the Controller to retrieve the list of active Breakpoints. Agents with the same debuggee_id get the same breakpoints list. An agent that can fulfill the breakpoint request updates the Controller with the breakpoint result. The controller selects the first result received and discards the rest of the results. Agents that poll again for active breakpoints will no longer have the completed breakpoint in the list and should remove that breakpoint from their attached process.

The Controller service does not provide a way to retrieve the results of a completed breakpoint. This functionality is available using the Debugger service.

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:

$controller2Client = new Controller2Client();
try {
    $debuggeeId = 'debuggee_id';
    $response = $controller2Client->listActiveBreakpoints($debuggeeId);
} finally {
    $controller2Client->close();
}

This service has a new (beta) implementation. See Google\Cloud\Debugger\V2\Client\Controller2Client to use the new surface.

Namespace

Google \ Cloud \ Debugger \ V2

Methods

__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.

listActiveBreakpoints

Returns the list of all active breakpoints for the debuggee.

The breakpoint specification (location, condition, and expressions fields) is semantically immutable, although the field values may change. For example, an agent may update the location line number to reflect the actual line where the breakpoint was set, but this doesn't change the breakpoint semantics.

This means that an agent does not need to check if a breakpoint has changed when it encounters the same breakpoint on a successive call. Moreover, an agent should remember the breakpoints that are completed until the controller removes them from the active list to avoid setting those breakpoints again.

Parameters
Name	Description
`debuggeeId`	`string` Required. Identifies the debuggee.
`optionalArgs`	`array` Optional.
`↳ waitToken`	`string` A token that, if specified, blocks the method call until the list of active breakpoints has changed, or a server-selected timeout has expired. The value should be set from the `next_wait_token` field in the last response. The initial value should be set to `"init"`.
`↳ successOnTimeout`	`bool` If set to `true` (recommended), returns `google.rpc.Code.OK` status and sets the `wait_expired` response field to `true` when the server-selected timeout has expired. If set to `false` (deprecated), returns `google.rpc.Code.ABORTED` status when the server-selected timeout has expired.
`↳ 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\Debugger\V2\ListActiveBreakpointsResponse`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Debugger\V2\Controller2Client;
use Google\Cloud\Debugger\V2\ListActiveBreakpointsResponse;

/**
 * @param string $debuggeeId Identifies the debuggee.
 */
function list_active_breakpoints_sample(string $debuggeeId): void
{
    // Create a client.
    $controller2Client = new Controller2Client();

    // Call the API and handle any network failures.
    try {
        /** @var ListActiveBreakpointsResponse $response */
        $response = $controller2Client->listActiveBreakpoints($debuggeeId);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * 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
{
    $debuggeeId = '[DEBUGGEE_ID]';

    list_active_breakpoints_sample($debuggeeId);
}

registerDebuggee

Registers the debuggee with the controller service.

All agents attached to the same application must call this method with exactly the same request content to get back the same stable debuggee_id. Agents should call this method again whenever google.rpc.Code.NOT_FOUND is returned from any controller method.

This protocol allows the controller service to disable debuggees, recover from data loss, or change the debuggee_id format. Agents must handle debuggee_id value changing upon re-registration.

Parameters
Name	Description
`debuggee`	`Google\Cloud\Debugger\V2\Debuggee` Required. Debuggee information to register. The fields `project`, `uniquifier`, `description` and `agent_version` of the debuggee must be set.
`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\Debugger\V2\RegisterDebuggeeResponse`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Debugger\V2\Controller2Client;
use Google\Cloud\Debugger\V2\Debuggee;
use Google\Cloud\Debugger\V2\RegisterDebuggeeResponse;

/**
 * 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 register_debuggee_sample(): void
{
    // Create a client.
    $controller2Client = new Controller2Client();

    // Prepare any non-scalar elements to be passed along with the request.
    $debuggee = new Debuggee();

    // Call the API and handle any network failures.
    try {
        /** @var RegisterDebuggeeResponse $response */
        $response = $controller2Client->registerDebuggee($debuggee);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

updateActiveBreakpoint

Updates the breakpoint state or mutable fields.

The entire Breakpoint message must be sent back to the controller service.

Updates to active breakpoint fields are only allowed if the new value does not change the breakpoint specification. Updates to the location, condition and expressions fields should not alter the breakpoint semantics. These may only make changes such as canonicalizing a value or snapping the location to the correct line of code.

Parameters
Name	Description
`debuggeeId`	`string` Required. Identifies the debuggee being debugged.
`breakpoint`	`Google\Cloud\Debugger\V2\Breakpoint` Required. Updated breakpoint information. The field `id` must be set. The agent must echo all Breakpoint specification fields in the update.
`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\Debugger\V2\UpdateActiveBreakpointResponse`

Example

use Google\ApiCore\ApiException;
use Google\Cloud\Debugger\V2\Breakpoint;
use Google\Cloud\Debugger\V2\Controller2Client;
use Google\Cloud\Debugger\V2\UpdateActiveBreakpointResponse;

/**
 * @param string $debuggeeId Identifies the debuggee being debugged.
 */
function update_active_breakpoint_sample(string $debuggeeId): void
{
    // Create a client.
    $controller2Client = new Controller2Client();

    // Prepare any non-scalar elements to be passed along with the request.
    $breakpoint = new Breakpoint();

    // Call the API and handle any network failures.
    try {
        /** @var UpdateActiveBreakpointResponse $response */
        $response = $controller2Client->updateActiveBreakpoint($debuggeeId, $breakpoint);
        printf('Response data: %s' . PHP_EOL, $response->serializeToJsonString());
    } catch (ApiException $ex) {
        printf('Call failed with message: %s' . PHP_EOL, $ex->getMessage());
    }
}

/**
 * Helper to execute the sample.
 *
 * 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
{
    $debuggeeId = '[DEBUGGEE_ID]';

    update_active_breakpoint_sample($debuggeeId);
}

Constants

SERVICE_NAME

Value: 'google.devtools.clouddebugger.v2.Controller2'

The name of the service.

SERVICE_ADDRESS

Value: 'clouddebugger.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.