ConnectorFacade interface
An application interacts with a connector through an instance of the ConnectorFacade
class. The following diagram shows the creation and configuration of the connector facade. The components shown here are described in more detail in the sections that follow.
The connector facade is instantiated and configured in the following steps:
-
The application creates a
LocalConnectorInfoManager
instance (or instances) and adds the individual connector bundles (or assemblies).The
LocalConnectorInfoManager
processes these bundles or assemblies to instantiate aConnectorInfo
object.To be processed by the connector info manager, the connector bundle or assembly must have the following characteristics:
- Java Connector Bundle
-
The
META-INF/MANIFEST.MF
file must include the following entries:-
ConnectorBundle-FrameworkVersion
- Minimum required ICF Framework version (either 1.1, 1.4, or 1.5) -
ConnectorBundle-Name
- Unique name of the connector bundle -
ConnectorBundle-Version
- Version of the connector bundle
The combination of the
ConnectorBundle-Name
and theConnectorBundle-Version
must be unique.The connector bundle JAR must contain at least one class, that has the
ConnectorClass
annotation and implements theConnector
interface. -
- .NET Connector Assembly
-
The
AssemblyInfo.cs
is used to determine the bundle version, from theAssemblyVersion
property.The bundle name is derived from the
Name
property of the assembly. For more information, refer to the corresponding Microsoft documentation.If you change the name of your assembly, you must adjust the
bundleName
property in your connector configuration file, accordingly.The connector assembly DLL must contain at least one class, that has the
ConnectorClassAttribute
attribute and implements theConnector
interface.
-
For each connector, the
LocalConnectorInfoManager
processes theMessageCatalog
, which contains the localized help and description messages for the configuration, and any log or error messages for the connector.Your application can use this information to provide additional help during the connector configuration process.
-
For each connector, the
LocalConnectorInfoManager
then processes theConfigurationClass
, to build the configuration properties for the connector. -
Your application finds the connector info by its connector key. When the application has the connector info, it creates an API Configuration object that customizes the following components:
-
Object pool configuration
-
Result handler configuration
-
Configuration properties
-
Timeout configuration
The API Configuration object is described in more detail in The API Configuration Object.
-
-
The
ConnectorFacade
takes this customized API configuration object, determines which connector to use and how to configure it, and implements all of the ICF API operations.
Creating a ConnectorFacade
Applications access the connector API through a ConnectorFacade
class, and interact with the connector through a ConnectorFacade
instance.
The following steps describe how to create a ConnectorFacade
in your application.
-
Create a
ConnectorInfoManager
and acquire theConnectorInfo
object for your connector, as described in the previous section. -
From the
ConnectorInfo
object, create the defaultAPIConfiguration
.APIConfiguration apiConfig = info.createDefaultAPIConfiguration();
-
Use the default
APIConfiguration
to set theObjectPoolConfiguration
,ResultsHandlerConfiguration
,ConfigurationProperties
, andTimeoutConfiguration
.ConfigurationProperties properties = apiConfig.getConfigurationProperties();
-
Set all of the
ConfigurationProperties
that you need for the connector, usingsetPropertyValue()
.properties.setPropertyValue("host", SAMPLE_HOST); properties.setPropertyValue("adminName", SAMPLE_ADMIN); properties.setPropertyValue("adminPassword", SAMPLE_PASSWORD); properties.setPropertyValue("useSSL", false);
-
Use the
newInstance()
method of theConnectorFacadeFactory
to create a new instance of the connector.ConnectorFacade conn = ConnectorFacadeFactory.getInstance() .newInstance(apiConfig);
-
Validate that you have set up the connector configuration correctly.
conn.validate();
-
Use the new connector with the supported operations (described in the following sections).
conn.[authenticate|create|update|delete|search|...]