Examples of org.apache.wiki.ReferenceManager

org.apache.wiki.ReferenceManager
Keeps track of wikipage references:
- What pages a given page refers to
- What pages refer to a given page
This is a quick'n'dirty approach without any finesse in storage and searching algorithms; we trust java.util.*.
This class contains two HashMaps, m_refersTo and m_referredBy. The first is indexed by WikiPage names and contains a Collection of all WikiPages the page refers to. (Multiple references are not counted, naturally.) The second is indexed by WikiPage names and contains a Set of all pages that refer to the indexing page. (Notice - the keys of both Maps should be kept in sync.)
When a page is added or edited, its references are parsed, a Collection is received, and we crudely replace anything previous with this new Collection. We then check each referenced page name and make sure they know they are referred to by the new page.
Based on this information, we can perform non-optimal searches for e.g. unreferenced pages, top ten lists, etc.
The owning class must take responsibility of filling in any pre-existing information, probably by loading each and every WikiPage and calling this class to update the references when created. @since 1.6.1

                // filter on referring pages?
                Collection<String> referrers = null;


                if( refer != null )
                {
                    ReferenceManager refManager = engine.getReferenceManager();


                    Iterator iter = refManager.findCreated().iterator();


                    while ( iter != null && iter.hasNext() )
                    {


                        String name = (String) iter.next();

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    public static final String PARAM_EXTRAS = "extras";


    public String execute(WikiContext context, Map<String, String> params) throws PluginException {
        ResourceBundle rb = Preferences.getBundle(context, WikiPlugin.CORE_PLUGINS_RESOURCEBUNDLE);


        ReferenceManager referenceManager = context.getEngine().getReferenceManager();


        int items = TextUtil.parseIntParameter(params.get(PARAM_MAX), ALL_ITEMS);
        String extras = params.get(PARAM_EXTRAS);
        if (extras == null) {
            extras = rb.getString("referringundefinedpagesplugin.more");
        }


        StringBuilder resultHTML = new StringBuilder();


        Collection<String> uncreatedPages = referenceManager.findUncreated();


        super.initialize(context, params);


        Collection<String> result = null;


        TreeMap sortedMap = new TreeMap();
        if (uncreatedPages != null) {
            for (String uncreatedPageName : uncreatedPages) {
                Collection<String> referrers = referenceManager.findReferrers(uncreatedPageName);
                if (referrers != null) {
                    for (String referringPage : referrers) {
                        sortedMap.put(referringPage, "");
                    }
                }

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     *  {@inheritDoc}
     */
    public String execute( WikiContext context, Map<String, String> params )
        throws PluginException
    {
        ReferenceManager refmgr = context.getEngine().getReferenceManager();
        String pageName = params.get( PARAM_PAGE );
        ResourceBundle rb = Preferences.getBundle( context, WikiPlugin.CORE_PLUGINS_RESOURCEBUNDLE );
        
        StringBuffer result = new StringBuffer( 256 );
        
        if( pageName == null )
        {
            pageName = context.getPage().getName();
        }


        WikiPage page = context.getEngine().getPage( pageName );
        
        if( page != null )
        {
            Collection   links  = refmgr.findReferrers( page.getName() );
            String       wikitext = "";


            super.initialize( context, params );


            int items = TextUtil.parseIntParameter( params.get( PARAM_MAX ), ALL_ITEMS );

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                // filter on referring pages?
                Collection<String> referrers = null;


                if( refer != null )
                {
                    ReferenceManager refManager = engine.getReferenceManager();


                    Iterator iter = refManager.findCreated().iterator();


                    while ( iter != null && iter.hasNext() )
                    {


                        String name = (String) iter.next();

View Full Code Here

     */
    @SuppressWarnings("unchecked")
    public String execute( WikiContext context, Map<String, String> params )
        throws PluginException
    {
        ReferenceManager refmgr = context.getEngine().getReferenceManager();
        Collection<String> links = refmgr.findUnreferenced();
        //
        // filter out attachments if "excludeattachments" was requested:
        //
        String prop = params.get( PARAM_EXCLUDEATTS );
        if( TextUtil.isPositive(prop) )

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     *  {@inheritDoc}
     */
    public String execute( WikiContext context, Map<String, String> params )
        throws PluginException
    {
        ReferenceManager refmgr = context.getEngine().getReferenceManager();
        Collection links = refmgr.findUncreated();


        super.initialize( context, params );


        links = filterAndSortCollection( links );

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    {
        if( depth >= m_depth ) return;  // end of recursion
        if( pagename == null ) return;
        if( !m_engine.pageExists(pagename) ) return;


        ReferenceManager mgr = m_engine.getReferenceManager();


        Collection<String> allPages = mgr.findRefersTo( pagename );


        handleLinks( context, allPages, ++depth, pagename );
    }

View Full Code Here

                // filter on referring pages?
                Collection<String> referrers = null;


                if( refer != null )
                {
                    ReferenceManager refManager = engine.getReferenceManager();


                    Iterator iter = refManager.findCreated().iterator();


                    while ( iter != null && iter.hasNext() )
                    {


                        String name = (String) iter.next();

View Full Code Here

                // filter on referring pages?
                Collection<String> referrers = null;


                if( refer != null )
                {
                    ReferenceManager refManager = engine.getReferenceManager();


                    Iterator< String > iter = refManager.findCreated().iterator();


                    while ( iter != null && iter.hasNext() )
                    {
                        String name = iter.next();
                        boolean use = false;

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