import org.netbeans.spi.quicksearch.SearchProvider; //导入依赖的package包/类
/**
 * Runs evaluation.
 *
 * @param command text to evauate, to search for
 *
 * @return task of this evaluation, which waits for all providers to complete
 * execution. Use returned instance to recognize if this evaluation still
 * runs and when it actually will finish.
 */
public static org.openide.util.Task evaluate (String command, ResultsModel model) {
    List<CategoryResult> l = new ArrayList<CategoryResult>();
    String[] commands = parseCommand(command);
    SearchRequest sRequest = Accessor.DEFAULT.createRequest(commands[1], null);
    List<Task> tasks = new ArrayList<Task>();

    List<Category> provCats = new ArrayList<Category>();
    boolean allResults = getProviderCategories(commands, provCats);

    for (ProviderModel.Category curCat : provCats) {
        CategoryResult catResult = new CategoryResult(curCat, allResults);
        SearchResponse sResponse = Accessor.DEFAULT.createResponse(catResult, sRequest);
        for (SearchProvider provider : curCat.getProviders()) {
            Task t = runEvaluation(provider, sRequest, sResponse, curCat);
            if (t != null) {
                tasks.add(t);
            }
        }
        l.add(catResult);
    }

    model.setContent(l);

    return new Wait4AllTask(tasks);
}
 

import org.netbeans.spi.quicksearch.SearchProvider; //导入依赖的package包/类
public List<SearchProvider> getProviders () {
    if (providers == null) {
        Collection<? extends SearchProvider> catProviders =
                Lookups.forPath(fo.getPath()).lookupAll(SearchProvider.class);
        providers = new ArrayList<SearchProvider>(catProviders);
    }

    return providers;
}
 

import org.netbeans.spi.quicksearch.SearchProvider; //导入依赖的package包/类
private static Task runEvaluation (final SearchProvider provider, final SearchRequest request,
                            final SearchResponse response, final ProviderModel.Category cat) {
    return RP.post(new Runnable() {
        @Override
        public void run() {
            provider.evaluate(request, response);
        }
    });
}
 

import org.netbeans.spi.quicksearch.SearchProvider; //导入依赖的package包/类
/** Tests ProviderModel functionality */
public void testGetProviders () throws Exception {
    UnitTestUtils.prepareTest(new String [] { "/org/netbeans/modules/quicksearch/resources/testGetProviders.xml" });
    
    ProviderModel model = ProviderModel.getInstance();
    
    System.out.println("Asking for test providers...");
    List<ProviderModel.Category> categories = model.getCategories();
    
    assertEquals(3, categories.size());
    
    
    System.out.println("Testing empty providers category...");
   
    ProviderModel.Category cat = categories.get(0);

    assertTrue("empty".equals(cat.getName()));
    assertTrue(cat.getName().equals(cat.getDisplayName()));
    assertTrue(cat.getCommandPrefix() == null);
    
    System.out.println("Testing category with provider which doesn't define category description...");
    
    cat = categories.get(1);
    
    assertTrue("test1".equals(cat.getName()));
    assertTrue(cat.getName().equals(cat.getDisplayName()));
    assertTrue(cat.getCommandPrefix() == null);
    
    List<SearchProvider> providers = cat.getProviders();
    assertEquals(1, providers.size());
    SearchProvider sp = providers.iterator().next();
    assertTrue(sp instanceof Test1Provider);

    System.out.println("Testing category with provider with full category description...");
    
    cat = categories.get(2);
    
    assertTrue("test2".equals(cat.getName()));
    // localized FO name don't work in test, don't know why
    //assertTrue(DISPLAY_NAME.equals(cat.getDisplayName()));
    assertTrue(COMMAND_PREFIX.equals(cat.getCommandPrefix()));
    
    providers = cat.getProviders();
    assertEquals(1, providers.size());
    sp = providers.iterator().next();
    assertTrue(sp instanceof Test2Provider);
}