MySqlConnectionResolver

Helper class that resolves MySQL connection and credential parameters, validates them and generates a connection URI.

Implements: IReferenceable, IConfigurable

Description

The MySqlConnectionResolver class allows you to create a MySQL connection and credential parameters resolver that validates the parameters and generates a connection URI.

Important points

  • It is able to process multiple connections to MySQL cluster nodes.

Configuration parameters

  • connection(s):

    • discovery_key: (optional) key to retrieve the connection from IDiscovery
    • host: host name or IP address
    • port: port number (default: 27017)
    • database: database name
    • uri: resource URI or connection string with all parameters in it

  • credential(s):

    • store_key: (optional) key to retrieve the credentials from ICredentialStore
    • username: username
    • password: user’s password

References

  • *:discovery:*:*:1.0 - (optional) IDiscovery services
  • *:credential-store:*:*:1.0 - (optional) ICredentialStore stores to resolve credentials

Constructors

NewMySqlConnectionResolver

NewMySqlConnectionResolver creates new connection resolver

NewMySqlConnectionResolver() *MySqlConnectionResolver

Fields

ConnectionResolver

The connection resolver

ConnectionResolver: *ConnectionResolver

CredentialResolver

The credential resolver

CredentialResolver: *CredentialResolver

Instance methods

Configure

Configures components by passing configuration parameters.

(c *MySqlConnectionResolver) Configure(ctx context.Context, config *ConfigParams)

  • ctx: context.Context - operation context.
  • config: *ConfigParams - configuration parameters to be set.

Resolve

Resolves a MySQL configuration from connection and credential parameters.

(c *MySqlConnectionResolver) Resolve(ctx context.Context, context IContext) (uri string, err error)

  • ctx: context.Context - operation context.
  • context: IContext - (optional) a context to trace execution through a call chain.
  • returns: (uri string, err error) - resolved connection config or return error.

SetReferences

Sets references to dependent components.

(c *MySqlConnectionResolver) SetReferences(ctx context.Context, references IReferences)

  • ctx: context.Context - operation context.
  • references: IReferences - references to locate the component dependencies.