Installation d'une application par programmation
Vous pouvez installer une application via la console d'administration, l'outil wsadmin ou la programmation. Cet exemple permet d'installer une application par programmation.
Avant de commencer
Avant de pouvoir installer une application sur WebSphere Application Server, vous devez installer cette dernière.
Pourquoi et quand exécuter cette tâche
L'instance AppDeploymentController contient des métadonnées définies dans les descripteurs de déploiement XML1 ainsi que des annotations définies dans les classes Java au sein du fichier d'archive d'entreprise (EAR) d'entrée.
Procédez comme suit pour installer une application par programmation.
Procédure
Résultats
Une fois le code exécuté, l'application est installée.
Exemple
L'exemple suivant explique comment installer une application en suivant la procédure précédente. Certaines instructions sont présentées sur plusieurs lignes à des fins d'affichage.
import java.lang.*;
import java.io.*;
import java.util.*;
import java.lang.reflect.*;
import com.ibm.websphere.management.application.*;
import com.ibm.websphere.management.application.client.*;
import com.ibm.websphere.management.*;
import javax.management.*;
public class Install {
public static void main (String [] args) {
try {
String earFile = "C:/test/test.ear";
String appName = "MyApp";
// Preparation phase: Begin
// Through the preparation phase you populate the enterprise archive (EAR) file with
// product-specific binding information. For example, you can specify Java Naming
// and Directory Interface (JNDI) names for enterprise beans, or virtual hosts for
// web modules, and so on.
// First, create the controller and populate the EAR file with the appropriate options.
Hashtable prefs = new Hashtable();
prefs.put(AppConstants.APPDEPL_LOCALE, Locale.getDefault());
// You can optionally run the default binding generator by using the following options.
// Refer to Java documentation for the AppDeploymentController class to see all the
// options that you can set.
Properties defaultBnd = new Properties();
prefs.put (AppConstants.APPDEPL_DFLTBNDG, defaultBnd);
defaultBnd.put (AppConstants.APPDEPL_DFLTBNDG_VHOST, "default_host");
// Create the controller.
AppDeploymentController controller = AppDeploymentController
.readArchive(earFile, prefs);
AppDeploymentTask task = controller.getFirstTask();
while (task != null)
{
// Populate the task data.
String[][] data = task.getTaskData();
// Manipulate task data which is a table of stringtask.
task.setTaskData(data);
task = controller.getNextTask();
}
controller.saveAndClose();
Hashtable options = controller.getAppDeploymentSavedResults();
// The previous options table contains the module-to-server relationship if it was set by
// using tasks.
//Preparation phase: End
// Get a connection to the product.
String host = "localhost";
String port = "8880";
String target = "WebSphere:cell=cellName,node=nodeName,server=server1";
Properties config = new Properties();
config.put (AdminClient.CONNECTOR_HOST, host);
config.put (AdminClient.CONNECTOR_PORT, port);
config.put (AdminClient.CONNECTOR_TYPE, AdminClient.CONNECTOR_TYPE_SOAP);
System.out.println ("Config: " + config);
AdminClient _soapClient = AdminClientFactory.createAdminClient(config);
// Create the application management proxy, AppManagement.
AppManagement proxy = AppManagementProxy. getJMXProxyForClient (_soapClient);
// If code for the preparation phase has been run, then you already have the options table.
// If not, create a new table and add the module-to-server relationship to it by uncommenting
// the next statement.
//Hashtable options = new Hashtable();
options.put (AppConstants.APPDEPL_LOCALE, Locale.getDefault());
// Uncomment the following statements to add the module to the server relationship table if
// the preparation phase does not collect it.
//Hashtable module2server = new Hashtable();
//module2server.put ("*", target);
//options.put (AppConstants.APPDEPL_MODULE_TO_SERVER, module2server);
//Create the notification filter for listening to installation events.
NotificationFilterSupport myFilter = new NotificationFilterSupport();
myFilter.enableType (AppConstants.NotificationType);
//Add the listener.
NotificationListener listener = new AListener(_soapClient,
myFilter, "Install: " + appName, AppNotification.INSTALL);
// Install the application.
proxy.installApplication (earFile, appName, options, null);
System.out.println ("After install App is called..");
// Wait for some timeout. The installation application programming interface (API) is
// asynchronous and so returns immediately.
// If the program does not wait here, the program ends.
Thread.sleep(300000); // Wait so that the program does not end.
}
catch (Exception e) {
e.printStackTrace();
}
}
}
// Specify the Java Management Extensions (JMX) notification listener for JMX events.
class AListener implements NotificationListener
{
AdminClient _soapClient;
NotificationFilterSupport myFilter;
Object handback;
ObjectName on;
String eventTypeToCheck;
public AListener(AdminClient cl, NotificationFilterSupport fl,
Object h, String eType) throws Exception
{
_soapClient = cl;
myFilter = fl;
handback = h;
eventTypeToCheck = eType;
Iterator iter = _soapClient.queryNames (new ObjectName(
"WebSphere:type=AppManagement,*"), null).iterator();
on = (ObjectName)iter.next();
System.out.println ("ObjectName: " + on);
_soapClient.addNotificationListener (on, this, myFilter, handback);
}
public void handleNotification (Notification notf, Object handback)
{
AppNotification ev = (AppNotification) notf.getUserData();
System.out.println ("!! JMX event Recd: (handback obj= " + handback+ "): " + ev);
//When the installation is done, remove the listener and quit.
if (ev.taskName.equals (eventTypeToCheck) &&
(ev.taskStatus.equals (AppNotification.STATUS_COMPLETED) ||
ev.taskStatus.equals (AppNotification.STATUS_FAILED)))
{
try
{
_soapClient.removeNotificationListener (on, this);
}
catch (Throwable th)
{
System.out.println ("Error removing listener: " + th);
}
System.exit (0);
}
}
}
Que faire ensuite
Une fois l'application installée, vous devez explicitement démarrer l'application ou vous devez arrêter, puis redémarrer le serveur.