Portlets, how to...

Has anyone ever done portlets in java?
We have to implement a portlet (client, not server) which should be able to display dynamically updated business graphics (charts, statistics, alarm messages, meters...).
What toolkits do people use to do this?

You are building a portal?
You should check some existing tools, like Apache JetSpeed or Oracle Portal Server. There is also a lot of tools written.
What you need is also another question. If you wish that your portlet will present some dinamicly renedered code from your database or that it will use n-tier system that will unify data from various datasources and will let a lot of customization for the user. Pages with portlets will normal let the user to define the place and shape of the portlet and page in general.
Bojan Kraut

Similar Messages

Custom Search portlet : how to sort the result in sequence (Portal 10.1.4)

With a Custom Search portlet how to Sort the Result By Sequence. i.e. by respecting arrangements of the items in the page of contents?
Actually the Results Options "Order By" are : Create Date, Author, Creator, Date Updated, Display Name, Last Update by, Publish Date, Score.
Is there an action to add the "Sequence" Order By result Option?
Great thanks for your kind help.
Best regards

No, I agree that it is functionality that should be added to the product, but it
is not a bug because it was not written to do this.
It is a short coming of the product.
Cheers,
Ersan

Custom Search Portlet : How to Sort the Result By Sequence (Portal 10.1.4)

Customer request: With a Custom Search portlet how to Sort the Result By Sequence. i.e. by respecting arrangements of the items in the page of contents?
(Like it's possible in MyOracle)
Actually the Results Options "Order By" are : Create Date, Author, Creator, Date Updated, Display Name, Last Update by, Publish Date, Score.
Is there an action to add the "Sequence" Order By result Option?
Great thanks for your kind help.
Best regards

No, I agree that it is functionality that should be added to the product, but it
is not a bug because it was not written to do this.
It is a short coming of the product.
Cheers,
Ersan

In portlets, how to use a html form passing values to the another page?

it is well known that in web developing , we have two methods to pass values to another page.
but how to use two methods in oracle portal portlets?
I have got a simple example which submit two values to the page for itself, means a page has a form with submit botton, user input the form with values and then submit them by submit botton, then the page recevice those values and show it .
this example is powered by oracle ,
please have a look at these code:
<br><br>
<%@ page contentType="text/html;charset=UTF-8" %>
<%@page import="java.util.*, oracle.portal.provider.v2.*" %>
<%@page import="oracle.portal.provider.v2.http.HttpCommonConstants" %>
<%@page import="oracle.portal.provider.v2.render.PortletRendererUtil" %>
<%@page import="oracle.portal.provider.v2.render.PortletRenderRequest" %>
<%@page import="oracle.portal.provider.v2.render.http.HttpPortletRendererUtil" %>
<%@page import="oracle.portal.provider.v2.url.UrlUtils" %>
<%
// The form submit URL refers to the current Portal page. All portlets
// on this page share this URL. This means that the per portlet parameters
// are in the same request. Portlets must ensure that its paramerters don't
// collide either with other portlets or other instances of itself. This
// is generally accomplished by using "fully-qualified" parameter names. A
// fully-qualified parameter name prepends the (unique) portlet reference to
// the parameter. The JPDK provides a utility to accomplish this.
String portletParamName = "mName";
String portletParamAge = "mAge";
String portletParamSubmit = "mSubmit";
String fName = HttpPortletRendererUtil.portletParameter(request, portletParamName);
String fAge = HttpPortletRendererUtil.portletParameter(request, portletParamAge);
String fSubmit = HttpPortletRendererUtil.portletParameter(request, portletParamSubmit);
// These are the session attribute names used to store the current values.
// Because all instances of this portlet share the same user session we must
// also fully-qualify these names to avoid collisions.
String sName = HttpPortletRendererUtil.portletParameter(request, "sName");
String sAge = HttpPortletRendererUtil.portletParameter(request, "sAge");
PortletRenderRequest pRequest = (PortletRenderRequest)
request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
String formName = UrlUtils.htmlFormName(pRequest,null);
ProviderUser user = pRequest.getUser();
ProviderSession providerSession = user.getSession();
if (providerSession == null)
%>
Your provider session has been terminated or has timed out
and you need to logout and then login to re-establish the session.
<%
else
// Record, in session storage, the last values submitted.
if (pRequest.getQualifiedParameter(portletParamSubmit) != null)
providerSession.setAttribute(sName, pRequest.getQualifiedParameter(portletParamName));
providerSession.setAttribute(sAge, pRequest.getQualifiedParameter(portletParamAge));
%>

<center>
<table width="70%">
<tr>
<td>
<b>This portlet shows how to post and process information from HTML forms.</b>
</td>
</tr>
</table>
<form name="<%= formName %>" method="POST"
action="<%= UrlUtils.htmlFormActionLink(pRequest,UrlUtils.PAGE_LINK) %>">
<%= UrlUtils.htmlFormHiddenFields(pRequest,UrlUtils.PAGE_LINK, formName) %>
<table>
<tr>
<td>
<b>Name :</b>
</td>
<td>
<input type="text" size="20" name="<%= fName %>" value="">
</td>
</tr>
<tr>
<td>
<b>Age : </b>
</td>
<td>
<input type="text" size="3" name="<%= fAge %>" value="">
</td>
</tr>
</table>
<br>
<INPUT TYPE=submit name="<%= fSubmit %>" Value="Submit">
</form>
<%
if ((providerSession.getAttribute(sName) == null)&& (providerSession.getAttribute(sAge) == null)) {
%>
<b>No values have been submitted yet.</b>
<%
} else {
%>
<b> Last submitted values:</b><br>
<table>
<tr>
<td>
<b>Name: </b>
</td>
<td>
<b><%= providerSession.getAttribute(sName) %></b>
</td>
</tr>
<tr>
<td>
<b>Age: </b>
</td>
<td>
<b><%= providerSession.getAttribute(sAge) %></b>
</td>
</tr>
</table>
<%
%>
</center>
<%
%>
<br><br>
<br><br>
<br><br>
but I want to write the form in a page , and then show it on another page , how to write it ?
I have read the pdk:
oracle.portal.provider.v2.url Classes
UrlUtils
then I use these method , as this :
//frist page:
<br><br><br><br>
<%@page contentType="text/html; charset=Big5"
import="oracle.portal.provider.v2.render.PortletRenderRequest"
import="oracle.portal.provider.v2.http.HttpCommonConstants"
%>
<%@ page import="oracle.portal.provider.v2.*"%>
<%@ page import="oracle.portal.provider.v2.render.PortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.render.http.HttpPortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.url.UrlUtils"%>
<%
PortletRenderRequest pReq = (PortletRenderRequest)
request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
%>
<P>Hello <%= pReq.getUser().getName() %>.</P>
<P>This is the <b><i>Show</i></b> render mode!</P>
this is a program to test the passing value
<%
String portletParamName = "mName";
String portletParamAge = "mAge";
String portletParamSubmit = "mSubmit";
String fName = HttpPortletRendererUtil.portletParameter(request, portletParamName);
String fAge = HttpPortletRendererUtil.portletParameter(request, portletParamAge);
String fSubmit = HttpPortletRendererUtil.portletParameter(request, portletParamSubmit);
PortletRenderRequest pr=(PortletRenderRequest)request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
String formName=UrlUtils.htmlFormName(pr, null);
%>
<form name="<%=formName%>" method="post" action="<%=UrlUtils.htmlFormActionLink("/htdocs/passingvalues4/getValues.jsp")%>">
<%= UrlUtils.htmlFormHiddenFields("/htdocs/passingvalues4/getValues.jsp") %>
name:<input type="text" size="20" name="<%= fName %>" value="">
p w :<input type="text" size="3" name="<%= fAge %>" value="">
<INPUT TYPE=submit name="<%= fSubmit %>" Value="Submit">
</form>
//getValues.jsp<br><br>
<br><br>
<%@page contentType="text/html; charset=Big5"
import="oracle.portal.provider.v2.render.PortletRenderRequest"
import="oracle.portal.provider.v2.http.HttpCommonConstants"
%>
<%@ page import="oracle.portal.provider.v2.*"%>
<%@ page import="oracle.portal.provider.v2.render.PortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.render.http.HttpPortletRendererUtil"%>
<%@ page import="oracle.portal.provider.v2.url.UrlUtils"%>
<% String portletParamName = "mName";
String portletParamAge = "mAge";
String portletParamSubmit = "mSubmit";
String fName = HttpPortletRendererUtil.portletParameter(request, portletParamName);
String fAge = HttpPortletRendererUtil.portletParameter(request, portletParamAge);
String fSubmit = HttpPortletRendererUtil.portletParameter(request, portletParamSubmit);%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=Big5">
<title>untitled</title>
</head>
<body>
Name:<%=fName%>
Age :<%=fAge%>
</body>
</html>
<br>then I deployed them on the portal , run it , the result is :after I submit it , the browser give me : http 404 page not found!
[b]here is the provider.xml<br>[b[i]]<?xml version = '1.0' encoding = 'UTF-8'?>
<?providerDefinition version="3.1"?>
<provider class="oracle.portal.provider.v2.DefaultProviderDefinition">
<session>true</session>
<passAllUrlParams>true</passAllUrlParams>
<portlet class="oracle.portal.provider.v2.DefaultPortletDefinition">
<id>1</id>
<name>PassingValues4</name>
<title>PassingValues4</title>
<description>PassingValues4</description>
<timeout>60</timeout>
<showEditToPublic>false</showEditToPublic>
<hasAbout>false</hasAbout>
<showEdit>false</showEdit>
<hasHelp>false</hasHelp>
<showEditDefault>false</showEditDefault>
<showDetails>false</showDetails>
<renderer class="oracle.portal.provider.v2.render.RenderManager">
<renderContainer>true</renderContainer>
<renderCustomize>true</renderCustomize>
<autoRedirect>true</autoRedirect>
<contentType>text/html</contentType>
<showPage>/htdocs/passingvalues4/PassingValues4InputPage.jsp</showPage>
<showPage>/htdocs/passingvalues4/getValues.jsp</showPage>
</renderer>
</portlet>
</provider>
<br><br><br>
<br><br>
would you kind enough to help me ? thanks!!!
Message was edited by:
moonsoft

Hi Moonsoft,
I have already answered this query in the other post at Re: how to link more than one links in portlet?(jsp develop)
<form name = "showPageForm" method = "POST" action = "<%= UrlUtils.htmlFormActionLink(pReq,UrlUtils.PAGE_LINK) %>">
<%= UrlUtils.htmlFormHiddenFields(pReq,UrlUtils.PAGE_LINK, "showPageForm") %>
<input type="text" name="param1">
<input type="text" name="param2">
<input type="hidden" name="myPPN" value="/htdocs/page2.jsp">
</form>then in your jsp code on page2.jsp, you will extract the parameters by specifying
<%
String p1 = request.getParameter("param1");
String p2 = request.getParameter("param2");
%>
>>this is easy common jsp or asp development, but in oracle is too diffcult!!!!
:-) .. there is a difference between web-applications and portlets, you just need to get used to it once. I hope this does clarify your doubts.
thanks,
Harsha

JSR168 portlet - How to acquire Portal user identity?

My scenario is:
- Write a JSR168 portlet to access data in an Oracle database
- The portlet will use the identity of a Oracle Portal user, who currently logs in, to create the connection to that database
- In the database, I create a global role, that in turn, assigned to an enterprise role, already granted to the portal user.
- When that user logins the database, depend on his available roles, the database will control his access on data
My problem is: how can I get the identity (username/password) of that Portal user to establish the connection to my database?
If anyone know, plz give me some help. I'm very thankful.

Dear Steven,
Can you elaborate on your query a bit further?
If you are looking for some SQL statement that will validate against a table for a given portal user then you can use the API wwctx_api of Portal.
For example,
SELECT FIELD1, FIELD2, FIELD3.....
FROM TABLE1
WHERE PORTAL_USER = WWCTX_API.GET_USER;
I hope this helps.
Thanks.
Saabir.

Full list of deployed portlets - how I can get it?

I need to get the full list of deployed portlets by me. I work with PS 2005Q4 for Windows. How I can get it.
Thanks!

One thing you could try, if you are using Sun Webserver as the Web Container and
installed it in the default path:
/opt/SUNWwbsvr/bin/https/bin/wdeploy list -i <portalserverhostname> -v https-<portalserverhostname>
will list all deployed web applications, which include your portlets.
Juergen

Custom Search Portlet: How to specify a page in the auto query?

I want to specify a page in an auto query (Automatically display search results).
I'm able to specify a pagegroup (Tab What to Search), but unable to select a specific page and to include/exclude subpages.
This option is available on the SearchForm Tab. We are running 9.0.4.

A similar question was asked in this discussion:
Custom Search Portlet
A Portal Search Team member replied that this feature might be included in 9.0.4.
We are testing 9.0.4 and it's not available. When is feature this scheduled?

Configuration Management of Portlets: How do you do it?

Hi:
What is the best way for a group of developers to keep "portlet" code under CM? Portlets can be so many thing, from so many sources, etc. Is an entire structure, including WSDL, source (JSPs, Stored Procedure code, XML transformations, etc.) all kept under CM? I know that you see versions within Oracle Portal itself, but what about other CM tool already in use for Java source, etc.?
Thanks,
Mike

Does anything change after you click on install? It should show an indication of activity, which takes awhile to complete. The restart occurs after that.

Upgrading Portlets - how to retain old preferences

I am VERY new to portlet development, but rewrote an old portlets from classic .ASP/C# to ASP.Net/C#.
This portlet has two community preferences and I kept the names exactly the same.
But when I switch the web service to point to the new code the existing portlets are not retrieving their preferences.
I am trying to prevent all the users from having to recreate their portlets.
Do I need to write a conversion program?

found the table to check is the PTPrefs table

How to add the SSO Server Administration portlet to portal

hi
I want to use SSO Server Administration portlet ,but when i Navigator to the administer tab .in the portal suntab there is not SSO Server Administration .I want to know why? and how to add the SSO Server Administration portlet to portal.(note:the portal system havn't SSO Server Administration portlet ) .how could i can do it. help !~help!

thank you IPeters .this problem was solved. the way is: login the portal with orcladmin and the password is the Infru password. In the administrator sub i see the SSO Server Administration portlet .
thank you very much.

How to deploy a portlet application on Sun One Portal Server?

Hi all,
I have developed a JSR168 helloworld portlet.
how will i deploy that war file to Sun One Portal Server ?
Thanks & Regards
~Neeraj.

Thanks Shay! I was able to deploy the application per your instructions.
[10:41:53 AM] Deploying Application...
[10:42:10 AM] [Deployer:149192]Operation 'deploy' on application 'mobilesolution2 [Version=V2.0]' is in progress on 'AdminServer'
[10:42:13 AM] [Deployer:149194]Operation 'deploy' on application 'mobilesolution2 [Version=V2.0]' has succeeded on 'AdminServer'
[10:42:13 AM] Application Deployed Successfully.
[10:42:13 AM] Elapsed time for deployment: 32 seconds
[10:42:13 AM] ---- Deployment finished. ----

How to get dynamic links in left navigation menu

HI all,
I have a requirement regarding the display of dynamic links in my portlet.how do i achieve the same??
Please share any source code/material if u have it or if u have come across this please help me out to achieve the same ??
Regards,
Deepak

Look at this DHTML slide menu system. It looks very close to what you have now.
http://www.dhtmlgoodies.com/scripts/slidedown-menu2/slidedown-menu2.html
Download and Instructions.
http://www.dhtmlgoodies.com/index.html?whichScript=slidedown_menu2
You may specify which submenu to expand in your URL like this:
<a href="link.html?mainMenuItemToSlide=2">
Hope this helps,
Nancy O.
Alt-Web Design & Publishing
Web | Graphics | Print | Media Specialists
www.alt-web.com/
www.twitter.com/altweb
www.alt-web.blogspot.com

How can I include a JSP, Maximized, and retain look and feel(WSRP)

I have created a page group and defined a root page with a certain look and feel. There are two portlets on the page. Once the user clicks on a submit button, the portlet performs some action and includes a jsp included in the EAR file. The portlet needs to maximize the UI to display the jsp correctly.
Once control returns back to the screen, the look and feel is lost and uses Oracle's default style. I have two questions:
1. From the portlet, how can I retain the look and feel of the page group when referencing "external" jsp (i.e JSPs in the deployed portal EAR file).
2. How can I "redirect" the user to the home page in a standard way? If there is not a standard way, how do I use the Oracle specific utilities to do it?
All of my JSPs are developed externally out of the scope of the Oracle Portal.
Environment - Oracle Portal 10.1.4 on Release 2 using WSRP to contact Oracle Release 3, hosted EAR file (WSRP Producer).
Thanks in advance.

Hi José,
I don't think that is possible. But you can import the css files that ep uses for its look and feel and try to give your web pages similar look and feel. The tables and other controls used in EP are totally different and are done through complex JavaScript coding instead of simple HTML tags. If you want exact lok and feel then i thin you must go for a Webdynpro based application rather then a J2EE application with JSPs.
Regards,
Guru.
PS: Give points for helpful replies.

How do i get a list of users into portal 9.0.2 using OID

I want to display a list of the users within a portlet.
how do i get the users name and details out of OID, so that i can use then in a PLSQL function.

Hi Chris,
first, welcome on SDN!
UMFactory.getInstance().getRoleFactory(roleID).getUserMembers() returns the users which are members of the role, see http://media.sdn.sap.com/html/submitted_docs/60_sp2_javadocs/ume/com/sap/security/api/IRole.html
addGroupMember(...) adds a group.
removeUserMember(...) removes a user from a role.
Corresponding method exist for the groups.
Hope it helps
Detlev
PS: Please consider rewarding points for helpful answers on SDN. Thanks in advance!
PPS: Wrong forum, should have been EP DEV for example. It's not a question in conjunction with KM.

Discoverer reports in portlet

Hi All!
Will anyone help me to solve the following problem?
There are several Discoverer reports based on database records. It's necessary to put them in a single portlet. I've tried to create a portlet provider and URL portlet, but there is the requirement to identify the parameter names the Discoverer form accepts in provider.xml file. Actually there is a large number of them, and I just can't imagine the whole set of them, so it looks like a problem.
Are there any other ways to put these reports in portlet?
Thanks in advance.

i have the same problem, i need to put the discoverer report in portlet, how i can do this?
reply me via e-mail
[email protected]

Portlets, how to...

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