Get the Current Selected Page
public
static
ObjectID getCurrentPage(PortletRequest request,
PortletResponse response) throws
StateException, NamingException, IOException {
ObjectID oId = null;
try
{
NavigationSelectionModelProvider provider = getNavigationSelectionModelProvider();
NavigationSelectionModel model = provider.getNavigationSelectionModel(request,
response);
NavigationNode node = (NavigationNode)model.getSelectedNode();
oId = node.getObjectID();
} catch
(ModelException e) {
System.err.println("The
current page could not be located = "
+ e);
}
return
oId;
}
protected
static
NavigationSelectionModelProvider getNavigationSelectionModelProvider()
{
NavigationSelectionModelProvider
provider = null;
try
{
if(navSelHome
== null)
{
Context ctx = new
InitialContext();
navSelHome
= (PortletServiceHome)ctx.lookup("portletservice/com.ibm.portal.portlet.service.model.NavigationSelectionModelProvider");
}
provider =(NavigationSelectionModelProvider) navSelHome.getPortletService(NavigationSelectionModelProvider.class);
} catch
(Exception e) {
System.err.println("There
was an error getting the navigation selection model provider = "
+ e);
}
return
provider;
}
Create a Navigation Change URL
public
static
String generateUrl(
String pageName,
String portletName,
HashMap params,
boolean
saveState,
PortletRequest request,
PortletResponse response)
throws
StateException, NamingException, IOException {
final
PortletStateManager mgr = getPortletStateManager(request, response);
Get the URL factory
URLFactory urlFactory
= mgr.getURLFactory();
String finalUrl
= "";
try
{
final
EngineURL url ;
if(saveState)
{
url = urlFactory.newURL(Constants.SMART_COPY);
} else
{
url = urlFactory.newURL(Constants.EMPTY_COPY);
}
Set
the page this URL should point to
final
com.ibm.portal.state.accessors.selection.SelectionAccessorFactory selectionFactory
= (com.ibm.portal.state.accessors.selection.SelectionAccessorFactory) mgr.getAccessorFactory(com.ibm.portal.state.accessors.selection.SelectionAccessorFactory.class);
Request
the selection controller to set the page; pass in the state associated
with the created URL
final
SelectionAccessorController selectionCtrl = selectionFactory.getSelectionAccessorController(url.getState());
Set
the page; you need the unique name (String) or the ObjectID of that page
selectionCtrl.setSelection(pageName);
Dispose
the accessor (avoids memory leak)
selectionCtrl.dispose();
if(portletName
!= null)
{
Set portlet render parameters
final
PortletAccessorFactory portletAccessorFactory = (PortletAccessorFactory)
mgr.getAccessorFactory(PortletAccessorFactory.class);
Get the portlet controller to set render parameters; pass in the state
associated with rge created URL
final
PortletAccessorController portletCtrl = portletAccessorFactory.getPortletAccessorController(portletName,
url.getState());
Set the render parameter
if(params
!= null)
{
portletCtrl.getParameters().putAll(params);
}
Dispose the accessor (avoids memory leak)
portletCtrl.dispose();
}
finalUrl = url.writeDispose(new
StringWriter()).toString();
} finally
{
urlFactory.dispose();
}
return
finalUrl;
}