Getting Page Body Content On Event.

[Bart Kerfeld]

Hello, I am struggling to build a plugin capable of adding links to pages on the creation and edit of a page. Here is what I have that works.

package learning.confluence;
#all imports are here ill save you the space
public class Listener implements EventListener {
    
    private final PageManager pageManager;
    private final PlatformTransactionManager transactionManager;
    
    public Listener(PageManager pageManager) {
        this.pageManager = pageManager;
    }
    @Override
    public void handleEvent(Event event) {
        // TODO Auto-generated method stub
        if (event instanceof PageCreatedEvent) {
            PageCreatedEvent pageCreatedEvent = (PageCreatedEvent) event;
            final long pageId = pageCreatedEvent.getPageId();
			Page page = pageManager.getPage(pageId);
            System.out.println("########## GOT IN ###############");
			System.out.println(page.getTitle() + " : " + pageId);
            System.out.println("########## GOT OUT ###############");
        }
        else if (event instanceof PageEditedEvent) {
            PageEditedEvent pageEditedEvent = (PageEditedEvent) event;
            final long pageId = pageEditedEvent.getPageId();
			Page page = pageManager.getPage(pageId);
            System.out.println("########## GOT IN ###############");
			System.out.println(page.getTitle() + " : " + pageId);
            System.out.println("########## GOT OUT ###############");
        }
    }
    private static final Class[] HANDLED_EVENTS = new Class[] {
        PageCreatedEvent.class, PageEditedEvent.class
    };
    
    @Override
    public Class[] getHandledEventClasses() {
        return HANDLED_EVENTS;
    }
}

This code will print the text to the console whenever I create a new or edit a page. Now the fun part... I cannot seem to get the body contents at all which I plan on manipulated somehow later (but that will be a different question ). I ran into problems, however, when trying to get the body of the page. The original problem I ran into occurred when trying to insert this code into what I had above (either line, I didn't run both at the same time)

String bodyContent = page.getBodyContent().getBody();
String otherBodyContent = page.getBodyAsString();

Failed to lazily initialize a collection - no session or session was closed was the problem I ran into so I did a little research and changed my code to the following.

package learning.confluence;
#again ill spare you the imports
public class Listener implements EventListener {
    
    private final PageManager pageManager;
    private final PlatformTransactionManager transactionManager;
    
    public Listener(PageManager pageManager, PlatformTransactionManager transactionManager) {
        this.pageManager = pageManager;
        this.transactionManager = transactionManager;
    }
    @Override
    public void handleEvent(Event event) {
        // TODO Auto-generated method stub
        if (event instanceof PageCreatedEvent) {
            PageCreatedEvent pageCreatedEvent = (PageCreatedEvent) event;
            final long pageId = pageCreatedEvent.getPageId();
            Page page = pageManager.getPage(pageId);
            System.out.println("########## GOT IN ###############");
            TransactionDefinition transactionDefinition = new DefaultTransactionAttribute(TransactionDefinition.PROPAGATION_REQUIRED);
            new TransactionTemplate(transactionManager, transactionDefinition).execute(new TransactionCallback() {
                @Override
                public Object doInTransaction(TransactionStatus status) {
                    try
                    {
                        Page p = pageManager.getPage(pageId);
                        String body = p.getBodyContent().getBody();
                        System.out.println("Worked!\n" + body);
                    }
                    catch (Exception e)
                    {
                        System.out.println("exception create");
                    }
                    return null;
                }
            });    
            System.out.println("########## GOT OUT ###############");
        }
        else if (event instanceof PageEditedEvent) {
            #this is the same idea is pageCreate so ill spare you the text
        }
    }
    private static final Class[] HANDLED_EVENTS = new Class[] {
        PageCreatedEvent.class, PageEditedEvent.class
    };
    
    @Override
    public Class[] getHandledEventClasses() {
        return HANDLED_EVENTS;
    }
}

Now when I run the plugin, I do not get any text. Not even the ###### GOT IN HERE ####### which happens before any of the Transaction Stuff. Am I missing something somewhere? Is there something which needs to be added to one of the xml files? Or, should I be doing something entirely different to try to accomplish this?

Thanks for the help everyone!

[xpauls · Accepted solution]

Maybe try using AnnotatedListener.

public class AnnotatedListener implements DisposableBean {
	protected EventPublisher eventPublisher;

	public AnnotatedListener(EventPublisher eventPublisher)
	{
		this.eventPublisher = eventPublisher;
		eventPublisher.register(this);
	}
	
	@EventListener
    public void pageCreateEvent(PageCreateEvent event) {
            Page page = event.getPage();
            page.setBodyAsString(page.getBodyAsString() + "<br/> THIS IS APPENDED TEXT FROM CREATE");     
    }

	@EventListener
    public void pageUpdateEvent(PageUpdateEvent event) {
            Page page = event.getPage();
            page.setBodyAsString(page.getBodyAsString() + "<br/> THIS IS APPENDED TEXT FROM EDIT");     
    }

	public void destroy() throws Exception {
        eventPublisher.unregister(this);
    }
 }

[Bart Kerfeld]

Thanks for the suggestions, I will take a look and let you know about the results.

[Bart Kerfeld]

The code works as expected. Thanks so much for the help!

[xpauls]

Please accept it as answer then :)

[Bart Kerfeld]

It looks like the version I get when doing atlas-run is Atlassian Confluence 5.8.2.

[xpauls]

Which confluence version are you using?