{"id":1958,"date":"2015-01-25T22:16:14","date_gmt":"2015-01-25T20:16:14","guid":{"rendered":"http:\/\/hasselba.ch\/blog\/?p=1958"},"modified":"2015-01-26T21:57:08","modified_gmt":"2015-01-26T19:57:08","slug":"howto-vaadin-on-domino-3","status":"publish","type":"post","link":"https:\/\/hasselba.ch\/blog\/?p=1958","title":{"rendered":"HowTo: Vaadin on Domino (3)"},"content":{"rendered":"

Let’s create another application, based on Vaadin’s AddressBook example<\/a>. You can download the source code directly<\/a> or grab the code from the repository; it is a single class file named „AddressbookUI<\/em>“ only.<\/p>\n

After importing (or manually creating) the class in the HelloVaadin plug-in<\/a>, the servlet configuration in „web.xml<\/em>“ must be updated:<\/p>\n

<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\r\n<web-app version=\"2.5\" xmlns=\"http:\/\/java.sun.com\/xml\/ns\/javaee\" \r\nxmlns:xsi=\"http:\/\/www.w3.org\/2001\/XMLSchema-instance\" \r\nxsi:schemaLocation=\"http:\/\/java.sun.com\/xml\/ns\/javaee \r\nhttp:\/\/java.sun.com\/xml\/ns\/javaee\/web-app_2_5.xsd\">\r\n\r\n\u00a0 <display-name>Addressbook<\/display-name>\r\n\u00a0\u00a0\u00a0 <context-param>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <description>Vaadin production mode<\/description>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <param-name>productionMode<\/param-name>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <param-value>false<\/param-value>\r\n\u00a0\u00a0\u00a0 <\/context-param>\r\n\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0\u00a0 <servlet>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <servlet-name>AdressbookServlet<\/servlet-name>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <servlet-class>com.vaadin.server.VaadinServlet<\/servlet-class>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <init-param>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <param-name>UI<\/param-name>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <param-value>ch.hasselba.vaadin.AddressbookUI<\/param-value>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/init-param>\r\n\u00a0\u00a0\u00a0 <\/servlet> \r\n\r\n\u00a0\u00a0\u00a0 <servlet-mapping>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <servlet-name>AdressbookServlet<\/servlet-name>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <url-pattern>\/*<\/url-pattern>\r\n\u00a0\u00a0\u00a0 <\/servlet-mapping>\r\n\u00a0\u00a0 \u00a0\r\n<\/web-app><\/code><\/pre>\n
The „<param-value><\/em>“ must contain the complete class name, I have additionally changed the name of the servlet and updated the path in the „plugin.xml<\/em>„:<\/p>\n
<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n<?eclipse version=\"3.4\"?>\r\n<plugin>\r\n\r\n\u00a0\u00a0\u00a0\u00a0 <extension\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 point=\"com.ibm.pvc.webcontainer.application\">\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <contextRoot>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/addressbook \u00a0\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <\/contextRoot>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <contentLocation>\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 WebContent\r\n\u00a0\u00a0\u00a0\u00a0\u00a0 <\/contentLocation>\r\n\u00a0\u00a0 <\/extension>\r\n\r\n<\/plugin><\/code><\/pre>\n
To connect the example to a Domino environment, the „createDummyDatasource<\/em>“ method of the class must be replaced:<\/p>\n
@SuppressWarnings(\"unchecked\")\r\nprivate static IndexedContainer createDummyDatasource() {\r\n\r\n    \/\/ Domino objects\r\n    Session session = null;\r\n    Database db = null;\r\n    View view = null;\r\n    Document doc = null;\r\n    Document tmpDoc = null;\r\n\r\n    \/\/ initialize IndexedContainer\r\n    IndexedContainer ic = new IndexedContainer();\r\n\r\n    \/\/ add fieldnames as properties\r\n    for (String p : fieldNames) {\r\n        ic.addContainerProperty(p, String.class, \"\");\r\n    }\r\n\r\n    \/\/ get all users from NAB\r\n    try{\r\n        \/\/ init Domino objects\r\n        session = ContextInfo.getUserSession();\r\n        db = session.getDatabase(session.getServerName(), \"dummynames.nsf\");\r\n        view = db.getView( \"People\" );\r\n\r\n        \/\/ process all documents in view\r\n        doc = view.getFirstDocument();\r\n        while (doc != null) {\r\n\r\n            \/\/ create a new item\r\n            Object id = ic.addItem();\r\n\r\n            \/\/ add field values to the item\r\n            ic.getContainerProperty(id, FNAME).\r\n                setValue(doc.getItemValueString(\"FirstName\"));\r\n            ic.getContainerProperty(id, LNAME).\r\n                setValue(doc.getItemValueString(\"LastName\"));\r\n\r\n            \/\/ grab next document\r\n            tmpDoc = doc;\r\n            doc = view.getNextDocument(tmpDoc);\r\n            recycle( tmpDoc );\r\n        }\r\n    }catch(Exception e){\r\n        e.printStackTrace();\r\n    }finally{\r\n        recycle( doc, tmpDoc, view, db, session );\r\n    }\r\n    return ic;\r\n}\r\n\r\n\/**\r\n* recycle Domino objects\r\n*\r\n* @param objs\r\n* \u00a0\u00a0 \u00a0lotus.domino.Base objects to recylce\r\n*\/\r\nprivate static void recycle(Base... objs){\r\n    try{\r\n        for( Base obj:objs ){\r\n            if( obj != null )\r\n                obj.recycle();\r\n        }\r\n    }catch(Exception e){}\r\n}<\/code><\/pre>\n
Because this is not rocket science I won’t get into the details.<\/p>\n
To prevent anonymous access, I have added a simple redirection in the „init<\/em>“ method:<\/p>\n
protected void init(VaadinRequest request) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0if( ContextInfo.isAnonymous() ){\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 getPage().setLocation(\"\/names.nsf?login=1&redirectto=\" + \r\n             request.getContextPath() );\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0 return;\r\n\u00a0\u00a0 \u00a0}\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0\r\n\u00a0\u00a0 \u00a0initLayout();\r\n\u00a0\u00a0 \u00a0initContactList();\r\n\u00a0\u00a0 \u00a0initEditor();\r\n\u00a0\u00a0 \u00a0initSearch();\r\n\u00a0\u00a0 \u00a0initButtons();\r\n}<\/code><\/pre>\n
When opening the application as an anonymous user you will be automatically redirected to the Login Screen:<\/p>\n
\"00<\/a><\/p>\n
After signing in, domino redirects back to the addressbook example, and the list of persons in your „names.nsf<\/em>“ is shown up:<\/p>\n
\"00<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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 … Weiterlesen →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,63],"tags":[7,65,66],"class_list":["post-1958","post","type-post","status-publish","format-standard","hentry","category-osgi","category-vaadin","tag-domino","tag-osgi","tag-vaadin"],"_links":{"self":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1958"}],"version-history":[{"count":3,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1958\/revisions"}],"predecessor-version":[{"id":1963,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1958\/revisions\/1963"}],"wp:attachment":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}