Currently I'm using the WicketTester's startPanel method to test my panels. Within these panels I often use PageParameters to access data, using getPage().getPageParameters(). However, the startPanel method does not initialize any page parameters for the DummyPage, nor does it offer me functionality to set page parameters.
How do I set my page parameters during panel tests?
Is that really the way to do it? The startPanel already creates a dummy page for us, but without any page parameters. Using your approach attaches the panel to two pages, which does not seem like the optimal solution to me. Right now I extended the WicketTester with a startPanel(Panel, PageParameters) function:
public Panel startPanel(final TestPanelSource testPanelSource, final PageParameters parameters) {
return (Panel) startPage(new ITestPageSource() {
public Page getTestPage() {
return new DummyPanelPage(testPanelSource, parameters);
}
}).get(DummyPanelPage.TEST_PANEL_ID);
}
And created a new dummy panel page with a page parameters constrctor
public class DummyPanelPage extends WebPage {
/**
* The dummy <code>Panel</code> <code>Component</code> id.
*/
public static final String TEST_PANEL_ID = "panel";
/**
* Default constructor.
* #param testPanelSource <code>TestPanelSource</code>
*/
public DummyPanelPage(final TestPanelSource testPanelSource, final PageParameters parameters) {
super(parameters);
add(testPanelSource.getTestPanel(TEST_PANEL_ID));
}
}
It beats me why this functionality isn't just provided out of the box by Apache.
Personally, I think, getting the PageParameters via getPage().getPageParameters() is a suboptimal way to go.
It introduces a dependency from your panel to your page which makes them tightly coupled and hard to test, as you can see.
If you need to access the PageParameters from within your Panel, inject them by creating a constructor accepting these, something along the lines of
private PageParameters params;
public MyPanel (String id, Model<T> model, PageParameters params) {
super(id, model);
this.params = params;
...
}
This way you can use the Parameters from within your Panel, construct the Panel with any PageParameters you can imagine in your tests and you avoided the coupling that proved to be disadvantageous.
You could use an anonymous (or subclass) of TestPanelSource with the page and panel already created.
final WebPage parameterPage = new WebPage(pageParmeters);
final Panel panelUnderTest = .... create panel here ....;
parameterPage.add(panelUnderTest);
wicketTester.startPanel(new TestPanelSource(){
public Panel getTestPanel(final String panelId) {
return panelUnderTest;
}
});
If you use this a lot a subclass of TestPanelSource might be best to be able to pass the parameters into your sub-class' constructor and other configurable items of your interest.
Related
When I initialize d3.js and dc.js using JsniBundle there is no global variable "dc" or "d3" that is created. But I initialze crossfilter in the same way and there is window.crossfilter present.
My question is: what is the best way to call methods from the dc library using JsniBundle? Is using JsUtils.prop(window, "dc") the correct way to get a reference to the library object?
In the method drawBarChartWidget() below, the variable "dc" is null.
public interface D3Bundle extends JsniBundle {
#LibrarySource("d3.js")
public void initD3();
}
public interface CrossfilterBundle extends JsniBundle {
#LibrarySource("crossfilter.js")
public abstract void initCrossfilter();
}
public abstract static class DCBundle implements JsniBundle {
#LibrarySource("dc.js")
public abstract void initDC();
public void drawBarChart(Widget container, JSONValue data, Properties chartConfig) {
JavaScriptObject dc = JsUtils.prop(window, "dc");
}
}
LayoutPanel layoutPanel = new LayoutPanel();
SimplePanel chartPanel = new SimplePanel();
public ChartDemo() {
D3Bundle d3 = GWT.create(D3Bundle.class);
CrossfilterBundle crossfilter = GWT.create(CrossfilterBundle.class);
final DCBundle dc = GWT.create(DCBundle.class);
d3.initD3();
crossfilter.initCrossfilter();
dc.initDC();
Maybe not a direct answer to your question, but if you want to use d3.js with GWT, there is a wrapper that cover most of the main APIs from d3.js :
https://github.com/gwtd3/gwt-d3
Here's what made it work:
change final assignment statement in d3.js library from
this.d3 = d3;
to
window.d3 = d3;
and change final assignment statement in dc.js library from
this.dc = _dc(d3);
to
window.dc = _dc(window.d3);
I assume this is because of some weirdness around the iframe context that GWT code is executed in, but I'm not totally clear on why it works. I haven't done it yet but I believe that instead of editing the original library you can use the "replace" attribute of the LibrarySource annotation to automate that substitution.
I'm currently working on a simple GWT project. One of the things I'd like to do is that when the page loads I can dynamically populate the contents of a ListBox based on certain criteria. I actually don't see any handlers for a ListBox to handle the initial render event but I see change handlers.
How does one populate a ListBox contents with data from the server side on pageload with GWT?
Right now I have a class that implements EntryPoint that has a
final ListBox fooList = new ListBox();
I also have a set of beans but I also have a class implementing RemoteService. Since I can't seem to get direct calls to my user defined packages directly in the EntryPoint (which makes sense) how do I populate that ListBox with server side content on initial page load? Right now I'm using a List but I figure if I cant get that to work I can get a DB call to work...
I've tried things in the EntryPoint like:
for (String name : FOOS) {
fooList.addItem(name, name);
}
However FOOS would derive from a server side data and the EntryPoint is supposed to be largerly limited to what can compile to JS! I can't get user defined classes to be recognized on that side as that string is the result of a set of user defined classes.
I also tried creating a method in the class implementing RemoteService that returns a ListBox. This also didn't compile when I tried to call this method. Perhaps I don't fully understand how to call methods in a RemoteService service implementing class.
I've searched a lot and I can't find anything that clearly explains the fundamentals on this. My background is much more ASP.NET and JSPs so perhaps I'm missing something.
I'm using GWT 2.6 is that is relevant.
The usual procedure is the following:
Create a bean class for the data you want to transmit between client and server. Let's call it MyBean.
Place MyBean in the shared package of your project.
This class has to implement either Serializable or IsSerializable, otherwise GWT will complain that it doesn't know how to transmit it.
Create your RemoteService that contains the method you want to use to transmit MyBean from/to the server.
Once you get your data on the client using an AsyncCallback and your RemoteService, fill the ListBox using your beans, e.g. by calling MyBean#getName() or MyBean#toString().
Success!
I based my example on the GWT sample project ( I named it example), just replace the classes and it should work :
public class Example implements EntryPoint {
/**
* Create a remote service proxy to talk to the server-side Greeting
* service.
*/
private final GreetingServiceAsync greetingService = GWT
.create(GreetingService.class);
/**
* This is the entry point method.
*/
public void onModuleLoad() {
final ListBox listBox = new ListBox();
RootPanel.get("sendButtonContainer").add(listBox);
greetingService.getSomeEntries(new AsyncCallback<String[]>() {
#Override
public void onSuccess(String[] result) {
for (int i = 0; i < result.length; i++) {
listBox.addItem(result[i]);
}
}
#Override
public void onFailure(Throwable caught) {
}
});
}
}
This is our EntryPoint, it creates a listbox and calls the server with a AsyncCallback to get some dynamic data. If the call is successfull (onSuccess), the data is written into the listbox.
The GreetingService interface define the synchronous methods, it is implemented in the GreetingServiceImpl class :
#RemoteServiceRelativePath("greet")
public interface GreetingService extends RemoteService {
String[] getSomeEntries() ;
}
The asynchronous counterpart is the GreetingServiceAsync interface, we used it before to call the server :
public interface GreetingServiceAsync {
void getSomeEntries(AsyncCallback<String[]> callback) ;
}
The GreetingServiceImpl class is located on the server. Here you could call for example a database:
#SuppressWarnings("serial")
public class GreetingServiceImpl extends RemoteServiceServlet implements
GreetingService {
#Override
public String[] getSomeEntries() {
String[] entries = { "Entry 1","Entry 2","Entry 3" };
return entries;
}
}
Now if you want to use some Bean/Pojo between the server and client, replace the String[] in each class/interface with the object name, put the class in the shared package and consider that it implements Serializable/IsSerializable.
How to restrict a CQ5/Custom component to add only once per page.? I want to restrict the drag and drop of component into the page when the author is going to add the same component for the second time into the same page.
One option is to include the component directly in the JSP of the template and exclude it from the list of available components in the sidekick. To do so, add the component directly to your JSP (foundation carousel in this example):
<cq:include path="carousel" resourceType="foundation/components/carousel" />
To hide the component from the sidekick, either set:
componentGroup: .hidden
or exclude it from the list of "Allowed Components" using design mode.
If you need to allow users to create a page without this component you can provide a second template with the cq:include omitted.
Thanks Rampant, I have followed your method and link stated.
Posting link again : please follow this blog
It was really helpful. I am posting the implementation whatever I have done.
It worked fine for me. One can definitely improve the code quality, this is raw code and is just for reference.
1.Servlet Filter
Keep this in mind that,if any resource gets refereshed, this filter will execute. So you need to filter the contents at your end for further processing.
P.S. chain.doFilter(request,response); is must. or cq will get hanged and nothing will be displayed.
#SlingFilter(generateComponent = false, generateService = true, order = -700,
scope = SlingFilterScope.REQUEST)
#Component(immediate = true, metatype = false)
public class ComponentRestrictorFilter implements Filter {
public void init(FilterConfig filterConfig) throws ServletException {}
#Reference
private ResourceResolverFactory resolverFactory;
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
WCMMode mode = WCMMode.fromRequest(request);
if (mode == WCMMode.EDIT) {
SlingHttpServletRequest slingRequest = (SlingHttpServletRequest) request;
PageManager pageManager = slingRequest.getResource().getResourceResolver().adaptTo(PageManager.class);
Page currentPage = pageManager.getContainingPage(slingRequest.getResource());
logger.error("***mode" + mode);
if (currentPage != null )) {
ComponentRestrictor restrictor = new ComponentRestrictor(currentPage.getPath(), RESTRICTED_COMPONENT);
restrictor.removeDuplicateEntry(resolverFactory,pageManager);
}
chain.doFilter(request, response);
}
}
public void destroy() {}
}
2.ComponentRestrictor class
public class ComponentRestrictor {
private String targetPage;
private String component;
private Pattern pattern;
private Set<Resource> duplicateResource = new HashSet<Resource>();
private Logger logger = LoggerFactory.getLogger(ComponentRestrictor.class);
private Resource resource = null;
private ResourceResolver resourceResolver = null;
private ComponentRestrictorHelper helper = new ComponentRestrictorHelper();
public ComponentRestrictor(String targetPage_, String component_){
targetPage = targetPage_ + "/jcr:content";
component = component_;
}
public void removeDuplicateEntry(ResourceResolverFactory resolverFactory, PageManager pageManager) {
pattern = Pattern.compile("([\"']|^)(" + component + ")(\\S|$)");
findReference(resolverFactory, pageManager);
}
private void findReference(ResourceResolverFactory resolverFactory, PageManager pageManager) {
try {
resourceResolver = resolverFactory.getAdministrativeResourceResolver(null);
resource = resourceResolver.getResource(this.targetPage);
if (resource == null)
return;
search(resource);
helper.removeDuplicateResource(pageManager,duplicateResource);
} catch (LoginException e) {
logger.error("Exception while getting the ResourceResolver " + e.getMessage());
}
resourceResolver.close();
}
private void search(Resource parentResource) {
searchReferencesInContent(parentResource);
for (Iterator<Resource> iter = parentResource.listChildren(); iter.hasNext();) {
Resource child = iter.next();
search(child);
}
}
private void searchReferencesInContent(Resource resource) {
ValueMap map = ResourceUtil.getValueMap(resource);
for (String key : map.keySet()) {
if (!helper.checkKey(key)) {
continue;
}
String[] values = map.get(key, new String[0]);
for (String value : values) {
if (pattern.matcher(value).find()) {
logger.error("resource**" + resource.getPath());
duplicateResource.add(resource);
}
}
}
}
}
3.To remove the node/ resource
Whichever resource you want to remove/delete just use PageManager api
pageManeger.delete(resource,false);
That's it !!! You are good to go.
None of the options looks easy to implement. The best approach I found is to use the ACS Commons Implementation which is very easy and can be adopted into any project.
Here is the link and how to configure it:
https://github.com/Adobe-Consulting-Services/acs-aem-commons/pull/639
Enjoy coding !!!
you can't prevent that without doing some massive hacking to the ui code, and even then, you've only prevented it from one aspect of the ui. there's still crxde, and then the ability to POST content.
if this is truly a requirement, the best approach might be the following:
have the component check for a special value in the pageContext object (use REQUEST_SCOPE)
if value is not found, render component and set value
otherwise, print out a message that component can only be used once
note that you can't prevent a dialog from showing, but at the very least the author has an indication that that particular component can only be used once.
It sounds like there needs to be clarification of requirements (and understanding why).
If the authors can be trained, let them manage limits of components through authoring and review workflows.
If there is just 1 fixed location the component can appear, then the page component should include the content component, and let the component have an "enable" toggle property to determine if it should render anything. The component's group should be .hidden to prevent dragging from the sidekick.
If there is a fixed set of locations for the component, the page component can have a dropdown of the list of locations (including "none"). The page render component would then conditionally include the component in the correct location. Again, prevent dragging the component from the sidekick.
In the "hard to imagine" case that the component can appear anywhere on the page, added by authors, but limited to only 1 instance - use a wrapper component to manage including the (undraggable) component. Let the authors drag the wrapper on the page as many times as they want, but the wrapper should query the page's resources and determine if it is the first instance, and if so, include the end component. Otherwise, the wrapper does nothing.
In our experience (>2years on CQ), implementing this type of business rules via code creates a brittle solution. Also, requirements have a habit of changing. If enforced via code, development work is required instead of letting authors make changes faster & elegantly.
None of these options are that great. If you truly want a robust solution to this problem (limit the number of items on the page without hardcoding location) then the best way is with a servlet filter chain OSGI service where you can administer the number of instances and then use a resource resolver to remove offending instances.
The basic gist is:
Refresh the page on edit using cq:editConfig
Create an OSGI service implementing javax.servlet.Filter that encapsulates your business rules.
Use the filter to remove excess components according to business rules
Continue page processing.
For more details see here:
Using a servlet filter to limit the number of instances of a component per page or parsys
This approach will let you administer the number of items per page or per parsys and apply other possibly complex business rules in a way that the other offered solutions simply cannot.
I have this code in my page constructor:
private String selectedAwsId;
private String selectedIsReal;
//these two are actually outside the constructor, and getters and setters for these two strings not shown
List<AwsCredentials> awsCredentials = (List<AwsCredentials>)getAwsCredentials();
List<String> awsIds = new ArrayList<String>();
for (AwsCredentials cred : awsCredentials){
awsIds.add(cred.getAwsId());
}
selectedAwsId = awsIds.get(0);
List<String> yesOrNo = Arrays.asList(new String[] { "sandbox", "real"});
selectedIsReal = "sandbox";
Form selectAwsCredentialsForm = new Form("selectAwsCredentialsForm"){
#Override
public void onSubmit() {
super.onSubmit();
//TODO: why isn't this updating the form?
}
};
add(selectAwsCredentialsForm);
selectAwsCredentialsForm.add(new DropDownChoice("selectAwsCredentialsDropdown", new PropertyModel(this, "selectedAwsId"), awsIds));
selectAwsCredentialsForm.add(new DropDownChoice("selectRealOrSandboxHitsDropdown", new PropertyModel(this, "selectedIsReal"), yesOrNo));
The first time I render the page, this works fine. But when I change the selection in either of the DropDownChoices and submit the form, the page doesn't change (values in the selectedAwsId and selectedIsReal aren't altered accordingly). Is there something I'm missing in my understanding of how forms work? Does the entire page get refreshed when a form gets submitted (does the constructor get run again?)
You might want to construct a model and set this as your form's model. (This is what I do.) Submitting the form (and if all is coded appropriately) will then result in the form's model being updated.
When I call other action in one action, it also display itself template, in Play 1.1 RC
and when I Redirect("...url") but it does not work, is there someone that can help me?
Just to add to the answers above, here's how you redirect to an external url:
public static void index() {
redirect("http://geeks.aretotally.in");
}
To redirect, you simply call the action. From the example in the documentation:
public static void show(Long id) {
Article article = Article.findById(id);
render(article);
}
public static void edit(Long id, String title) {
Article article = Article.findById(id);
article.title = title;
article.save();
show(id);
}
At the end of the edit action, the call to show(...) will cause a redirect on the client's browser as if they had hit the same URL that routes to the show method.
Since none of these answers provide a general/reusable method to do this, here is my code. This allows you to create any number of redirects in the conf/routes file without creating a controller for each.
Yes, this is trivial, but perhaps it is of use to someone.
conf/routes:
GET /admin Application.redirect(url:'/admin/index.html')
app/controllers/Application.java:
public class Application extends Controller {
public static void redirect(String url) {
redirect(url, true);
}
}
In the play framework, when you call an action, by default it renders the template associated with that action.
For example, a Contoller named Application
public static void index()
Will render
app/views/Application/index.html
To make it render a different view, then you can specify the template as the first parameter in the render method.
So,
renderTemplate("Application/myOtherTemplate.html");
Redirect should only really be used if you are redirecting to a URL outside of your application.