Beat me to it. Here is a segment from my *-objects.xml file related to my
version of the NavbarPortlet and the code.
| <page>
| <page-name>default</page-name>
| <properties>
| <property>
| <name>navbar.DisplayName</name>
| <value>Home</value>
| </property>
| <property>
| <name>navbar.SortOrder</name>
| <value>1</value>
| </property>
| </properties>
|
| import org.jboss.portal.core.api.JBossPortalNode;
| import org.jboss.portal.core.impl.model.portal.PortalObjectImpl;
| import org.jboss.portal.core.model.portal.Context;
| import org.jboss.portal.core.model.portal.Page;
| import org.jboss.portal.core.model.portal.Portal;
| import org.jboss.portal.core.model.portal.PortalObject;
| import org.jboss.portal.core.model.portal.PortalObjectContainer;
| import org.jboss.portal.core.model.portal.Window;
| import org.jboss.portal.security.PortalPermissionFactory;
| import org.jboss.portal.security.PortalPolicyException;
| import org.jboss.portlet.JBossPortlet;
| import org.jboss.portlet.JBossRenderRequest;
| import org.jboss.portlet.JBossRenderResponse;
| import org.jboss.portlet.PortalNode;
| import org.jboss.portlet.PortalNodeURL;
|
| import javax.portlet.PortletException;
| import javax.portlet.PortletPreferences;
| import java.io.IOException;
| import java.util.ArrayList;
| import java.util.Collections;
| import java.util.Comparator;
| import java.util.HashMap;
| import java.util.Iterator;
| import java.util.List;
| import java.util.Map;
|
| /**
| *
| * @author Vince Marco
| */
| public class NavbarPortlet extends JBossPortlet
| {
| private PortalPermissionFactory permissionFactory;
| private PortalObjectContainer container;
| private Map nodemap = new HashMap();
| private static final String NAME_PROPERTY =
"navbar.DisplayName";
| private static final String ORDER_PROPERTY =
"navbar.SortOrder";
|
| public NavbarPortlet()
| {
| super();
| }
|
| public void init() throws PortletException
| {
| permissionFactory = (PortalPermissionFactory)
this.getPortletContext().getAttribute("PortalPermissionFactory");
| container = (PortalObjectContainer)
this.getPortletContext().getAttribute("PortalObjectContainer");
| if (permissionFactory == null)
| {
| throw new PortletException("No portal permission
factory");
| }
| if (container == null)
| {
| throw new PortletException("No portal object
container");
| }
| }
|
| public void destroy()
| {
| super.destroy();
|
| //
| permissionFactory = null;
| container = null;
| }
|
| public void render(JBossRenderRequest req, JBossRenderResponse resp)
throws IOException,
| PortletException
| {
| resp.setContentType("text/html");
| resp.setTitle("Portals");
| try
| {
| PortletPreferences prefs = req.getPreferences();
| String rootLevel =
prefs.getValue("navigation-root-level", "page");
| Context context = container.getContext();
| List navElements = new ArrayList();
|
| // get the list of portal nodes to display (portals or
pages, based on
| // preference)
| Iterator portalObjectIterator;
| if ("page".equalsIgnoreCase(rootLevel))
| {
| // if the pages of the current portal are
requested, then read up
| // the hierarchie to the current portal, to
| // get the children from there (which are the
pages to display)
| PortalNode current = req.getPortalNode();
| while (current != null && current.getType() !=
PortalNode.TYPE_PORTAL)
| {
| current = current.getParent();
| }
| if (current != null && current.getType() ==
PortalNode.TYPE_PORTAL)
| {
| PortalObject root =
context.getChild(current.getName());
| portalObjectIterator =
root.getChildren().iterator();
| }
| else
| {
| throw new PortletException("the current
node has no parent of type 'portal'");
| }
| }
| else
| {
| // ok, we are to display portals then; they are
the children of the
| // container root
| portalObjectIterator =
context.getChildren().iterator();
| }
| // now build the list
| while (portalObjectIterator.hasNext())
| {
| PortalObject child = (PortalObject)
portalObjectIterator.next();
| if (child.getType() == PortalNode.TYPE_PAGE ||
child.getType() == PortalNode.TYPE_PORTAL)
| {
| PortalObjectImpl portalObject =
(PortalObjectImpl) child;
| if
(allowed(portalObject.getPortalNode()))
| {
| navElements.add(portalObject);
| }
| }
| }
|
| Collections.sort(navElements, new
PortalNodeComparator());
|
| // find the selected item in the level that was
selected to be the root
| // from the current portal node walk up the hierarchie
until the node
| // type matches
| // that of the nav elements; if there is a match, hold
on to it to mark
| // the selected item later on
| PortalNode selectedNode = null;
| if (navElements.size() > 0)
| {
| PortalObject first = (PortalObject)
navElements.get(0);
| int navElementType = first.getType();
| PortalNode current = req.getPortalNode();
| while (current != null && current.getType() !=
navElementType)
| {
| current = current.getParent();
| }
|
| // now read up the hierarchie within the same
node type until the
| // type changes, to find the top level node of
that type
| if (current.getParent() != null)
| {
| PortalNode sameTypeLevelUp = current;
| while (sameTypeLevelUp != null &&
sameTypeLevelUp.getType() == current.getType())
| {
| current = sameTypeLevelUp;
| sameTypeLevelUp =
current.getParent();
| }
| }
|
| if (current != null && current.getType() ==
navElementType)
| {
| selectedNode = current;
| }
| }
|
| StringBuffer html = new StringBuffer();
| html.append("<ul id=\"tabsHeader\">");
| for (Iterator i = navElements.iterator(); i.hasNext();)
| {
| PortalObjectImpl navElement =
(PortalObjectImpl) i.next();
|
| // build up Marks markup for the navigation ,
based on these nodes
| String name =
navElement.getDeclaredProperty(NAME_PROPERTY);
| if (name == null)
| name = navElement.getName();
| JBossPortalNode urlNode = null;
| if (navElement instanceof Portal)
| {
| // get the default page node for this
portal to get a valid URL
| // from it
| Page defaultPage = ((Portal)
navElement).getDefaultPage();
| if (defaultPage != null)
| {
| PortalObject node =
navElement.getChild(defaultPage.getName());
| if (node instanceof
PortalObjectImpl)
| {
| urlNode =
((PortalObjectImpl) node).getPortalNode();
| }
| }
| }
| else if (navElement instanceof Page)
| {
| urlNode = navElement.getPortalNode();
| }
|
| if (urlNode != null)
| {
| PortalNodeURL childURL =
resp.createRenderURL(urlNode);
| html.append("<li");
| if (selectedNode != null &&
selectedNode.equals(navElement.getPortalNode()))
| {
| html.append(" id=\"current\"");
| }
| html.append("
onmouseover=\"this.className='hoverOn'\"");
| html.append("
onmouseout=\"this.className='hoverOff'\"><a href='");
|
html.append(childURL).append("'>").append(name).append("</a></li>");
| }
| }
| html.append("</ul>");
| resp.getWriter().write(html.toString());
| }
| catch (Exception e)
| {
| // todo: handle error case : write it out
| e.printStackTrace();
| }
|
| }
|
| private boolean allowed(JBossPortalNode node) throws
PortalPolicyException
| {
| return permissionFactory.checkPermission("portalobject",
node.getHandle(), "view");
| }
|
| private static int getOrder(Object o)
| {
| if (o instanceof Context)
| {
| return 0;
| }
| if (o instanceof Portal)
| {
| return 1;
| }
| if (o instanceof Page)
| {
| return 2;
| }
| if (o instanceof Window)
| {
| return 3;
| }
| return 4;
| }
|
| class PortalNodeComparator implements Comparator
| {
| public int compare(Object arg0, Object arg1)
| {
| int result = 0;
| int high1 = getOrder(arg0);
| int high2 = getOrder(arg1);
| if (high1 == high2)
| {
| PortalObject p0 = (PortalObject)arg0;
| PortalObject p1 = (PortalObject)arg1;
| String sort0 =
p0.getDeclaredProperty(ORDER_PROPERTY);
| String sort1 =
p1.getDeclaredProperty(ORDER_PROPERTY);
| if (sort0 == null)
| sort0 = p0.getName();
| if (sort1 == null)
| sort1 = p1.getName();
| result = (sort0.compareTo(sort1));
| }
| else
| result = high1 - high2;
| return result;
| }
| }
| }
|
|
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