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Project GlassFish Java EE Deployment API
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/*
* DeploymentFactoryManager.java
*
* Created on January 28, 2002, 6:24 PM
*/
package javax.enterprise.deploy.shared.factories;
import java.util.Vector;
import java.util.Iterator;
import javax.enterprise.deploy.spi.DeploymentManager;
import javax.enterprise.deploy.spi.exceptions.DeploymentManagerCreationException;
import javax.enterprise.deploy.spi.factories.DeploymentFactory;
/**
* The DeploymentFactoryManager class is a central registry for
* Java EE DeploymentFactory objects. The DeploymentFactoryManager
* retains references to DeploymentFactory objects loaded by
* a tool. A DeploymentFactory object provides a reference to
* a DeploymentManager.
*
* The DeploymentFactoryManager has been implemented as a singleton.
* A tool gets a reference to the DeploymentFactoryManager via the
* getInstance method.
*
* The DeploymentFactoryManager can return two types of
* DeploymentManagers, a connected DeploymentManager and a
* disconnected DeploymentManager. The connected DeploymentManager
* provides access to any product resources that may be required
* for configurations and deployment. The method to retrieve a
* connected DeploymentManager is getDeploymentManager. This method
* provides parameters for user name and password that the product
* may require for user authentication. A disconnected DeploymentManager
* does not provide access to a running Java EE product. The method
* to retrieve a disconnected DeploymentManager is
* getDisconnectedDeploymentManager. A disconnected DeploymentManager
* does not need user authentication information.
*/
public final class DeploymentFactoryManager {
private Vector deploymentFactories = null;
// Singleton instance
private static DeploymentFactoryManager deploymentFactoryManager = new DeploymentFactoryManager();
/** Creates new RIDeploymentFactoryManager */
private DeploymentFactoryManager() {
deploymentFactories = new Vector();
}
/**
* Retrieve the Singleton DeploymentFactoryManager
* @return DeploymentFactoryManager instance
*
*/
public static DeploymentFactoryManager getInstance() {
return deploymentFactoryManager;
}
/**
* Retrieve the lists of currently registered DeploymentFactories.
*
* @return the list of DeploymentFactory objects or an empty array
* if there are none.
*/
public DeploymentFactory[] getDeploymentFactories() {
Vector deploymentFactoriesSnapShot = null;
synchronized(this){
deploymentFactoriesSnapShot =
(Vector)this.deploymentFactories.clone();
}
DeploymentFactory[] factoriesArray =
new DeploymentFactory[deploymentFactoriesSnapShot.size()];
deploymentFactoriesSnapShot.copyInto(factoriesArray);
return factoriesArray;
}
/**
* Retrieves a DeploymentManager instance to use for deployment.
* The caller provides a URI and optional username and password,
* and all registered DeploymentFactories will be checked. The
* first one to understand the URI provided will attempt to
* initiate a server connection and return a ready DeploymentManager
* instance.
*
* @param uri The uri to check
* @param username An optional username (may be null if
* no authentication is required for this platform).
* @param password An optional password (may be null if
* no authentication is required for this platform).
* @return A ready DeploymentManager instance.
* @throws DeploymentManagerCreationException
* Occurs when the factory appropriate to the specified URI
* was unable to initialize a DeploymentManager instance
* (server down, unable to authenticate, etc.).
*/
public DeploymentManager getDeploymentManager(String uri, String username,
String password) throws DeploymentManagerCreationException{
try{
DeploymentFactory[] factories = this.getDeploymentFactories();
for(int factoryIndex=0; factoryIndex < factories.length;
factoryIndex++){
if(factories[factoryIndex].handlesURI(uri)){
return factories[factoryIndex].getDeploymentManager(uri,
username,password);
}
}
// No available factory supports the provided url.
throw new DeploymentManagerCreationException("URL ["+uri+
"] not supported by any available factories");
}catch(Throwable t){
throw new DeploymentManagerCreationException(
"Could not get DeploymentManager");
}
}
/**
* Registers a DeploymentFactory so it will be able to handle
* requests.
*/
public void registerDeploymentFactory(DeploymentFactory factory){
this.deploymentFactories.add(factory);
}
/**
* Return a disconnected DeploymentManager instance.
*
* @param uri identifier of the disconnected DeploymentManager to
* return.
* @return A DeploymentManager instance.
* @throws DeploymentDriverException occurs if the DeploymentManager
* could not be created.
*/
public DeploymentManager getDisconnectedDeploymentManager(String uri)
throws DeploymentManagerCreationException {
try{
DeploymentFactory[] factories = this.getDeploymentFactories();
for(int factoryIndex=0; factoryIndex < factories.length;
factoryIndex++){
if(factories[factoryIndex].handlesURI(uri)){
return factories[factoryIndex].getDisconnectedDeploymentManager(uri);
}
}
// No available factory supports the provided url.
throw new DeploymentManagerCreationException("URL ["+uri+
"] not supported by any available factories");
}catch(Throwable t){
throw new DeploymentManagerCreationException(
"Could not get DeploymentManager");
}
}
}
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