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

Fields

_connectionResolver

The connection resolver

protected ConnectionResolver _connectionResolver = new ConnectionResolver();

_credentialResolver

The credential resolver

protected CredentialResolver _credentialResolver = new CredentialResolver();

Instance methods

configure

Configures components by passing configuration parameters.

public void configure(ConfigParams config)

config: ConfigParams - configuration parameters to be set.

resolve

Resolves a MySQL configuration from connection and credential parameters.

public String resolve(IContext context) throws ApplicationException

context: IContext - (optional) a context to trace execution through a call chain.
returns: String - resolved connection config or raise error

setReferences

Sets references to dependent components.

public void setReferences(IReferences references)

references: IReferences - references to locate the component dependencies.