com.sun.star.comp.connections.ConstantInstanceProvider Maven / Gradle / Ivy
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package com.sun.star.comp.connections;
import com.sun.star.bridge.XInstanceProvider;
import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.lang.XSingleServiceFactory;
import com.sun.star.registry.XRegistryKey;
import com.sun.star.comp.loader.FactoryHelper;
/**
* The ConstantInstanceProvider is a component
* that implements the XInstanceProvider Interface.
*
* @version $Revision: 1.3 $ $ $Date: 2008-04-11 11:08:55 $
* @author Kay Ramme
* @see com.sun.star.bridge.XBridge
* @see com.sun.star.bridge.XBridgeFactory
* @see com.sun.star.bridge.XInstanceProvider
* @see com.sun.star.comp.loader.JavaLoader
* @since UDK1.0
*/
public class ConstantInstanceProvider implements XInstanceProvider {
/**
* When set to true, enables various debugging output.
*/
static public final boolean DEBUG = false;
/**
* The name of the service, the JavaLoader acceses this through reflection.
*/
static private final String __serviceName = "com.sun.star.comp.connection.InstanceProvider";
/**
* Gives a factory for creating the service.
* This method is called by the JavaLoader
*
* @return returns a XSingleServiceFactory for creating the component
* @param implName the name of the implementation for which a service is desired
* @param multiFactory the service manager to be uses if needed
* @param regKey the registryKey
* @see com.sun.star.comp.loader.JavaLoader
*/
public static XSingleServiceFactory __getServiceFactory(String implName,
XMultiServiceFactory multiFactory,
XRegistryKey regKey)
{
XSingleServiceFactory xSingleServiceFactory = null;
if (implName.equals(ConstantInstanceProvider.class.getName()) )
xSingleServiceFactory = FactoryHelper.getServiceFactory(ConstantInstanceProvider.class,
__serviceName,
multiFactory,
regKey);
return xSingleServiceFactory;
}
protected XMultiServiceFactory _serviceManager;
protected String _serviceName;
protected Object _instance;
public void setInstance(String serviceName) throws com.sun.star.uno.Exception {
_instance = _serviceManager.createInstance(serviceName);
_serviceName = serviceName;
}
/**
* Constructs a new ConstantInstanceProvider.
* Uses the provided ServiceManager as the provided instance.
*
* @param serviceName the provided service manager
*/
public ConstantInstanceProvider(XMultiServiceFactory serviceManager) {
_serviceManager = serviceManager;
_serviceName = "SERVICEMANAGER";
_instance = serviceManager;
}
/**
* Gives an object for the passed instance name.
*
* @return the desired instance
* @param sInstanceName the name of the desired instance
*/
public Object getInstance(String sInstanceName) throws com.sun.star.container.NoSuchElementException, com.sun.star.uno.RuntimeException {
Object result = sInstanceName.equals(_serviceName) ? _instance : null;
if(DEBUG) System.err.println("##### " + getClass().getName() + ".getInstance(" + sInstanceName + "):" + result);
return result;
}
}