Let’s create another application, based on Vaadin’s AddressBook example. You can download the source code directly or grab the code from the repository; it is a single class file named „AddressbookUI“ only.
After importing (or manually creating) the class in the HelloVaadin plug-in, the servlet configuration in „web.xml“ must be updated:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<display-name>Addressbook</display-name>
<context-param>
<description>Vaadin production mode</description>
<param-name>productionMode</param-name>
<param-value>false</param-value>
</context-param>
<servlet>
<servlet-name>AdressbookServlet</servlet-name>
<servlet-class>com.vaadin.server.VaadinServlet</servlet-class>
<init-param>
<param-name>UI</param-name>
<param-value>ch.hasselba.vaadin.AddressbookUI</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>AdressbookServlet</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>The „<param-value>“ must contain the complete class name, I have additionally changed the name of the servlet and updated the path in the „plugin.xml„:
<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
<extension
point="com.ibm.pvc.webcontainer.application">
<contextRoot>
/addressbook
</contextRoot>
<contentLocation>
WebContent
</contentLocation>
</extension>
</plugin>To connect the example to a Domino environment, the „createDummyDatasource“ method of the class must be replaced:
@SuppressWarnings("unchecked")
private static IndexedContainer createDummyDatasource() {
// Domino objects
Session session = null;
Database db = null;
View view = null;
Document doc = null;
Document tmpDoc = null;
// initialize IndexedContainer
IndexedContainer ic = new IndexedContainer();
// add fieldnames as properties
for (String p : fieldNames) {
ic.addContainerProperty(p, String.class, "");
}
// get all users from NAB
try{
// init Domino objects
session = ContextInfo.getUserSession();
db = session.getDatabase(session.getServerName(), "dummynames.nsf");
view = db.getView( "People" );
// process all documents in view
doc = view.getFirstDocument();
while (doc != null) {
// create a new item
Object id = ic.addItem();
// add field values to the item
ic.getContainerProperty(id, FNAME).
setValue(doc.getItemValueString("FirstName"));
ic.getContainerProperty(id, LNAME).
setValue(doc.getItemValueString("LastName"));
// grab next document
tmpDoc = doc;
doc = view.getNextDocument(tmpDoc);
recycle( tmpDoc );
}
}catch(Exception e){
e.printStackTrace();
}finally{
recycle( doc, tmpDoc, view, db, session );
}
return ic;
}
/**
* recycle Domino objects
*
* @param objs
* lotus.domino.Base objects to recylce
*/
private static void recycle(Base... objs){
try{
for( Base obj:objs ){
if( obj != null )
obj.recycle();
}
}catch(Exception e){}
}Because this is not rocket science I won’t get into the details.
To prevent anonymous access, I have added a simple redirection in the „init“ method:
protected void init(VaadinRequest request) {
if( ContextInfo.isAnonymous() ){
getPage().setLocation("/names.nsf?login=1&redirectto=" +
request.getContextPath() );
return;
}
initLayout();
initContactList();
initEditor();
initSearch();
initButtons();
}When opening the application as an anonymous user you will be automatically redirected to the Login Screen:
After signing in, domino redirects back to the addressbook example, and the list of persons in your „names.nsf“ is shown up:
