Java Item.getCategories方法代码示例

import com.sun.syndication.feed.rss.Item; //导入方法依赖的package包/类
@Override
protected SyndEntry createSyndEntry(Item item, boolean preserveWireItem) {
    SyndEntry syndEntry = super.createSyndEntry(item, preserveWireItem);
    List cats =  item.getCategories();
    if (cats.size()>0) {
        Set s = new LinkedHashSet();                // using a set to remove duplicates and use a LinkedHashSet to try to retain the document order
        s.addAll(createSyndCategories(cats)); // feed native categories (as syndcat)
        s.addAll(syndEntry.getCategories());   // DC subjects (as syndcat)
        syndEntry.setCategories(new ArrayList(s));    //c
    }
    List enclosures = item.getEnclosures();
    if (enclosures.size()>0) {
        syndEntry.setEnclosures(createSyndEnclosures(enclosures));
    }
    return syndEntry;
}
 

import com.sun.syndication.feed.rss.Item; //导入方法依赖的package包/类
protected SyndEntry createSyndEntry(Item item) {
    SyndEntry syndEntry = super.createSyndEntry(item);
    List cats =  item.getCategories();
    if (cats.size()>0) {
        Set s = new HashSet();                // using a set to remove duplicates
        s.addAll(createSyndCategories(cats)); // feed native categories (as syndcat)
        s.addAll(syndEntry.getCategories());   // DC subjects (as syndcat)
        syndEntry.setCategories(new ArrayList(s));    //c
    }
    List enclosures = item.getEnclosures();
    if (enclosures.size()>0) {
        syndEntry.setEnclosures(createSyndEnclosures(enclosures));
    }
    return syndEntry;
}
 

import com.sun.syndication.feed.rss.Item; //导入方法依赖的package包/类
private void parseFeedEntry(final Item entry, final Resource r_feed) throws RDFParseException, RDFHandlerException {

        final String entryURI = entry.getUri() != null ? entry.getUri() : entry.getLink();

        URI r_entry = createURI(entryURI);
        URI rdf_type = createURI(NS_RDF + "type");


        // add type sioc:Post
        rdfHandler.handleStatement(createStatement(r_entry, rdf_type, createURI(NS_SIOC + "Post")));

        // add as sioc:container_of from parent feed
        rdfHandler.handleStatement(createStatement(r_feed, createURI(NS_SIOC + "container_of"), r_entry));
        rdfHandler.handleStatement(createStatement(r_entry, createURI(NS_SIOC + "has_container"), r_feed));

        createStringProperty(r_entry, NS_DC_TERMS + "creator", entry.getAuthor());

        for(Object category : entry.getCategories()) {
            parseCategory(r_entry, (Category)category);
        }

        createUrlProperty(r_entry, NS_SIOC + "has_discussion", entry.getComments());

        if(entry.getContent() != null) {
            createStringProperty(r_entry, NS_RSS_CONTENT + "encoded", entry.getContent().getValue());
            createStringProperty(r_entry, NS_RSS_CONTENT + "format", entry.getContent().getType());
        }

        if(entry.getDescription() != null) {
            createStringProperty(r_entry, NS_DC_TERMS + "description", entry.getDescription().getValue());
        }

        // enclosures relate items to media resources used; we use dcterms:hasPart to link to them
        for(Enclosure enclosure : entry.getEnclosures()) {
            createUrlProperty(r_entry, NS_DC_TERMS + "hasPart", enclosure.getUrl());
        }

        // for the expiration date we use dc:valid; it is a bit underspecified :-(
        createDateProperty(r_entry, NS_DC_TERMS + "valid", entry.getExpirationDate());

        // GUID is sometimes a URL but the documentation says this cannot be guaranteed, so we use dc:identifier
        createStringProperty(r_entry, NS_DC_TERMS + "identifier", entry.getGuid().getValue());

        // for the link we use sioc:link
        createUrlProperty(r_entry, NS_SIOC + "link", entry.getLink());

        for(Module module : entry.getModules()) {
            if(module instanceof DCModule) {
                parseDCModule(r_entry, (DCModule)module);
            } else if(module instanceof GeoRSSModule) {
                parseGeoModule(r_entry, (GeoRSSModule)module);
            } else if(module instanceof MediaEntryModule) {
                parseMediaModule(r_entry, (MediaEntryModule)module);
            } else if(module instanceof ContentModule) {
                parseContentModule(r_entry, (ContentModule)module);
            } else {
                log.warn("module {} not supported yet", module.getUri());
            }

            // TODO: add support for more modules!
        }

        // publication date is dc:issued
        createDateProperty(r_entry, NS_DC_TERMS + "issued", entry.getPubDate());

        // if the source is present, we link just to the URL using dc:source and ignore the text
        if(entry.getSource() != null)
            createUrlProperty(r_entry, NS_DC_TERMS + "source", entry.getSource().getUrl());

        // title is dc:title
        createStringProperty(r_entry, NS_DC_TERMS + "title", entry.getTitle());

        log.debug("parsed RSS item {}", r_entry.stringValue());
    }