Re: [Wicket-user] AbstractRequestTargetUrlCodingStrategy implementation
Hey KarlI can show you one of my first attempts to use IRequestTargetUrlCodingStrategy. It's for a never-published weblog I wrote a while ago. It maps
http://localhost/weblog/article/some_article_title_in_url_formtonew BlogItemPage(BlogItem blogItem)which means I do the resolving of the BlogItem object from a DAO in the IRequestTargetUrlCodingStrategy.
I think it somewhat covers your needs:BlogItemPageUrlCodingStrategy.javaimport java.util.regex.Matcher;import java.util.regex.Pattern;import
dk.billen.weblog.dao.BlogItemDAO;import dk.billen.weblog.domain.BlogItem;import dk.billen.weblog.frontend.pages.BlogItemPage;import dk.billen.weblog.frontend.pages.FrontendFrontPage;import wicket.IRequestTarget
;import wicket.Page;import wicket.PageParameters;import wicket.request.RequestParameters;import wicket.request.target.coding.IRequestTargetUrlCodingStrategy;import wicket.request.target.component.BookmarkablePageRequestTarget
;import wicket.request.target.component.PageRequestTarget;/** * */public class BlogItemPageUrlCodingStrategy implements IRequestTargetUrlCodingStrategy { private BlogItemDAO blogItemDAO;
/** * @param blogItemDAO */ public BlogItemPageUrlCodingStrategy(BlogItemDAO blogItemDAO) { this.blogItemDAO = blogItemDAO; } public IRequestTarget decode(RequestParameters requestParameters) {
IRequestTarget target = null; String path = requestParameters.getPath(); Pattern pat = Pattern.compile("^\\/article\\/([^\\/]+)$"); Matcher mat = pat.matcher(path);
if (mat.matches()) { String title = mat.group(1); BlogItem blogItem = blogItemDAO.get(title); Page page = null; if (blogItem == null) { page = new FrontendFrontPage();
} else { page = new BlogItemPage(blogItem); } target = new PageRequestTarget(page); } return target; } public CharSequence encode(IRequestTarget requestTarget) {
StringBuffer buffer = new StringBuffer(); if (requestTarget instanceof BookmarkablePageRequestTarget) { BookmarkablePageRequestTarget target = (BookmarkablePageRequestTarget) requestTarget;
PageParameters pageParameters = target.getPageParameters(); String title = pageParameters.getString("articleTitle"); buffer.append("/article/");
buffer.append(title); } return buffer.toString(); } public boolean matches(IRequestTarget requestTarget) { boolean matches = false; if (requestTarget instanceof BookmarkablePageRequestTarget) {
BookmarkablePageRequestTarget target = (BookmarkablePageRequestTarget) requestTarget; if (BlogItemPage.class.equals(target.getPageClass())) { matches = true; }
} return matches; }}BlogItemPage.javaimport wicket.PageParameters;import dk.billen.weblog.command.CommandInterface;
import dk.billen.weblog.command.CommandRequest;import dk.billen.weblog.domain.BlogItem;import dk.billen.weblog.frontend.components.BlogItemPanel;public class BlogItemPage extends FrontendBasePage {
private static final long serialVersionUID = 1L; public BlogItemPage(BlogItem blogItem) { add(new BlogItemPanel("item", blogItem)); } public static class ShowBlogItem implements CommandInterface {
private static final long serialVersionUID = 1L; private BlogItem blogItem; public ShowBlogItem(BlogItem blogItem) { super(); this.blogItem = blogItem;
} public BlogItem getBlogItem() { return blogItem; } public void execute(CommandRequest request) { PageParameters pageParameters = new PageParameters();
pageParameters.add("articleId", "" + blogItem.getId()); request.setResponsePage(BlogItemPage.class, pageParameters); } }}
And then in *Application.java #init()...
mount("/article", new BlogItemPageUrlCodingStrategy(getBlogItemDAO()));...Hope it makes sense.
On 8/15/06, Karl M. Davis <[EMAIL PROTECTED]> wrote:
Hello
all,
What I would like to
have is a site where user-specific feature pages map to hierarchical
URLs. For example: * /site/user/karl/blog/2006/08/14 maps to
BlogViewer(bob, "2006", "08", "14") *
/site/user/karl/content/BestEssayEver maps to ContentViewer(fred,
"MyLifeStory") * /site/user/fred/content/BestEssayEver maps to
ContentViewer(fred, "BestEssayEver")
I could "cheat" and
use Bookmarkable pages but this would leave the users also being passed as
strings-- I'd rather resolve them ahead of time and pass the pages the real
Actor instances.
In order to do that,
I think I'll have to write an implementation of
AbstractRequestTargetUrlCodingStrategy that encodes and decodes the pages.
Also, I will have to have a "guarantee" that each of the mounted pages has a
constructor in the form of Const
[Wicket-user] AbstractRequestTargetUrlCodingStrategy implementation
Hello all, What I would like to have is a site where user-specific feature pages map to hierarchical URLs. For example: * /site/user/karl/blog/2006/08/14 maps to BlogViewer(bob, "2006", "08", "14") * /site/user/karl/content/BestEssayEver maps to ContentViewer(fred, "MyLifeStory") * /site/user/fred/content/BestEssayEver maps to ContentViewer(fred, "BestEssayEver") I could "cheat" and use Bookmarkable pages but this would leave the users also being passed as strings-- I'd rather resolve them ahead of time and pass the pages the real Actor instances. In order to do that, I think I'll have to write an implementation of AbstractRequestTargetUrlCodingStrategy that encodes and decodes the pages. Also, I will have to have a "guarantee" that each of the mounted pages has a constructor in the form of Constructor(user, string[] params). The AbstractRequestTargetUrlCodingStrategy shouldn't be all that hard to write, but I think the aforementioned "guarantee" will require an implementation of IRequestTarget similar to IBookmarkablePageRequestTarget that stores the request's parameters for the pages. From what I can see, this would also be simple to write as it seems to be mostly a data-storage class. However, I am unsure of how to "wire up" Wicket to use my new IRequestTarget implementation once I have completed it. Can anyone help me with that? I would also really appreciate any insight/links someone could provide on how Wicket's entire URLmapping scheme works-- I haven't been able to find any architecture documents or anything that explain this in a general sense. I'm used to using IIS and writing URL filters so this is pretty new territory for me. Thanks in advance, Karl - Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
