Hi all,
I am trying to implement persistent links within an application coplet
of the portal. By default the internal links of external applications
are dynamically converted to "?cocoon-portal-event=xx" parameters at
runtime. So a particular page of an external application is not easily
bookmarkable or to be incorporated in search results, etc. So to have a
search crawler be able to index these pages, these links have to be
globally valid, identifyable and have to survive Tomcat restarts. In
short, they have to be persistent.
I found it would be easiest to base the implementation on the
PageLabelEventConverter.
As a test I tried to manually create a CopletLinkEvent within the start
Method (initialize() wouldn't work because this code accesses the
ProfileManager) to simulate recreating these Links from a persistent store:
public void start() {
String label = this.labelManager.setCurrentLabel();
try {
PortalService portalService =
(PortalService)this.manager.lookup(PortalService.ROLE);
PortalComponentManager componentManager =
portalService.getComponentManager();
ProfileManager profileManager =
componentManager.getProfileManager();
if (this.eventList.size() == 0) {
CopletInstanceData cid =
profileManager.getCopletInstanceData( "Google-1" );
if (cid != null) {
cid.setAttribute("cookie", null);
cid.setAttribute("documentbase", "http://www.google.de/";);
Event persistentEevent = new CopletLinkEvent(cid,
"/intl/de/about.html");
this.eventList.add(persistentEevent);
}
}
} catch (ServiceException se) {
this.getLogger().error("Error getting " + PortalService.ROLE +
": ", se);
}
}
The event gets correctly endoded into the pages. Even decoding seems to
work correctly, however clicking this link simply reloads the current page.
Any idea what might go wrong is much appreciated. The complete Code of
PageLabelPersistentEventConverter is below.
Thanks
Guido
--
Freundliche Grüße / With kind regards
Guido Casper
S&N AG
Klingenderstr. 5
D 33100 Paderborn
voice +49 5251/1581-87
fax +49 5251/1581-71
eMail [EMAIL PROTECTED]
Web http://www.s-und-n.de
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Josef Tillmann
Vorsitzender des Aufsichtsrates
Heinz-Dieter Wendorff
Handelsregister
Amtsgericht Paderborn HRB 3270
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package org.apache.cocoon.portal.event.impl;
import java.util.List;
import java.util.ArrayList;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.framework.service.Serviceable;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceManager;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.portal.PortalComponentManager;
import org.apache.cocoon.portal.PortalService;
import org.apache.cocoon.portal.profile.ProfileManager;
import org.apache.cocoon.portal.coplet.CopletBaseData;
import org.apache.cocoon.portal.coplet.CopletData;
import org.apache.cocoon.portal.coplet.CopletFactory;
import org.apache.cocoon.portal.coplet.CopletInstanceData;
import org.apache.cocoon.portal.event.Event;
import org.apache.cocoon.portal.event.EventConverter;
import org.apache.cocoon.portal.impl.PageLabelManager;
public class PageLabelPersistentEventConverter extends AbstractLogEnabled
implements EventConverter, Serviceable, ThreadSafe {
protected PageLabelManager labelManager;
protected ServiceManager manager;
protected List eventList = new ArrayList();
public void service(ServiceManager manager) throws ServiceException {
this.manager = manager;
this.labelManager =
(PageLabelManager)manager.lookup(PageLabelManager.ROLE);
}
public String encode(Event event) {
int index = this.eventList.indexOf(event);
if ( index == -1 ) {
this.eventList.add(event);
index = this.eventList.size() - 1;
}
return String.valueOf(index);
}
public Event decode(String value) {
if ( null != this.eventList ) {
int index = new Integer(value).intValue();
if (index < this.eventList.size()) {
this.getLogger().info("decoded");
Event event = (Event)this.eventList.get(index);
return event;
}
}
return null;
}
public void start() {
String label = this.labelManager.setCurrentLabel();
try {
PortalService portalService =
(PortalService)this.manager.lookup(PortalService.ROLE);
PortalComponentManager componentManager =
portalService.getComponentManager();
ProfileManager profileManager =
componentManager.getProfileManager();
if (this.eventList.size() == 0) {
CopletInstanceData cid =
profileManager.getCopletInstanceData( "Google-1" );
if (cid != null) {
System.out.println("CopletInstanceData found");
cid.setAttribute("cookie", null);
cid.setAttribute("documentbase",
"http://www.google.de/";);
Event persistentEevent = new CopletLinkEvent(cid,
"/intl/de/about.html");
eventList.add(persistentEevent);
}
}
} catch (ServiceException se) {
this.getLogger().error("Error getting " +
PortalService.ROLE + ": ", se);
}
}
public void finish() {
// nothing to do
}
public boolean isMarshallEvents() {
return this.labelManager.isMarshallEvents();
}
}
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