Examples of org.apache.wicket.request.mapper.parameter.PageParameters$Entry

Package org.apache.wicket.request.mapper.parameter

Examples of org.apache.wicket.request.mapper.parameter.PageParameters$Entry

org.apache.wicket.request.mapper.parameter.PageParameters
Mutable class that holds parameters of a Page. Page parameters consist of indexed parameters and named parameters. Indexed parameters are URL segments before the query string. Named parameters are usually represented as query string params (i.e. ?arg1=var1&arg2=val)
Indexed vs Named Parameters: Suppose we mounted a page on {@code /user} and thefollowing url was accessed {@code /user/profile/bob?action=view&redirect=false}. In this example {@code profile} and {@code bob} are indexed parameters with respective indexes 0 and 1.{@code action} and {@code redirect} are named parameters.

How those parameters are populated depends on the {@link IRequestMapper}s @author Matej Knopp

      throw new PageExpiredException(String.format("Bookmarkable page id '%d' has expired.",
        pageInfo.getPageId()));
    }
    else
    {
      PageParameters constructionPageParameters = provider.getPageInstance().getPageParameters();
      if (PageParameters.equals(constructionPageParameters, pageParameters) == false)
      {
        // create a fresh page instance because the request page parameters are different than the ones
        // when the resolved page by id has been created
        return new RenderPageRequestHandler(new PageProvider(pageClass, pageParameters));

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    if (urlInfo != null)
    {
      PageComponentInfo info = urlInfo.getPageComponentInfo();
      Class<? extends IRequestablePage> pageClass = urlInfo.getPageClass();
      PageParameters pageParameters = urlInfo.getPageParameters();


      if (info == null)
      {
        // if there are is no page instance information
        // then this is a simple bookmarkable URL

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      PageInfo pageInfo = getPageInfo(handler);
      ComponentInfo componentInfo = new ComponentInfo(renderCount,
        requestListenerInterfaceToString(handler.getListenerInterface()),
        handler.getComponentPath(), handler.getBehaviorIndex());


      PageParameters parameters = getRecreateMountedPagesAfterExpiry() ? new PageParameters(
        handler.getPage().getPageParameters()).mergeWith(handler.getPageParameters())
        : handler.getPageParameters();
      UrlInfo urlInfo = new UrlInfo(new PageComponentInfo(pageInfo, componentInfo),
        pageClass, parameters);
      return buildUrl(urlInfo);

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  {
    int[] matchedParameters = getMatchedSegmentSizes(url);
    int total = 0;
    for (int curMatchSize : matchedParameters)
      total += curMatchSize;
    PageParameters pageParameters = extractPageParameters(request, total, pageParametersEncoder);


    int skippedParameters = 0;
    for (int pathSegmentIndex = 0; pathSegmentIndex < pathSegments.size(); pathSegmentIndex++)
    {
      MountPathSegment curPathSegment = pathSegments.get(pathSegmentIndex);
      int matchSize = matchedParameters[pathSegmentIndex] - curPathSegment.getFixedPartSize();
      int optionalParameterMatch = matchSize - curPathSegment.getMinParameters();
      for (int matchSegment = 0; matchSegment < matchSize; matchSegment++)
      {
        if (pageParameters == null)
        {
          pageParameters = new PageParameters();
        }


        int curSegmentIndex = matchSegment + curPathSegment.getSegmentIndex();
        String curSegment = mountSegments[curSegmentIndex];
        String placeholder = getPlaceholder(curSegment);
        String optionalPlaceholder = getOptionalPlaceholder(curSegment);
        // extract the parameter from URL
        if (placeholder != null)
        {
          pageParameters.add(placeholder,
              url.getSegments().get(curSegmentIndex - skippedParameters), INamedParameters.Type.PATH);
        }
        else if (optionalPlaceholder != null && optionalParameterMatch > 0)
        {
          pageParameters.add(optionalPlaceholder,
              url.getSegments().get(curSegmentIndex - skippedParameters), INamedParameters.Type.PATH);
          optionalParameterMatch--;
        }
      }
      skippedParameters += curPathSegment.getMaxParameters() - matchSize;

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     *            the current request's non-modified parameters
     * @return all parameters but Wicket internal ones
     */
    private PageParameters cleanPageParameters(final PageParameters originalParameters)
    {
      PageParameters cleanParameters = null;
      if (originalParameters != null)
      {
        cleanParameters = new PageParameters(originalParameters);


        // WICKET-4038: Ajax related parameters are set by wicket-ajax.js when needed.
        // They shouldn't be propagated to the next requests
        cleanParameters.remove(WebRequest.PARAM_AJAX);
        cleanParameters.remove(WebRequest.PARAM_AJAX_BASE_URL);
        cleanParameters.remove(WebRequest.PARAM_AJAX_REQUEST_ANTI_CACHE);


        if (cleanParameters.isEmpty())
        {
          cleanParameters = null;
        }
      }
      return cleanParameters;

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   * query parameters
   */
  @Test
  public void setQueryParameterWhenRequestHasAnQueryUrl()
  {
    PageParameters parameters = new PageParameters();
    parameters.set("q_1", "q_1_value");
    IPageProvider testPageProvider = new PageProvider(MockPageParametersAware.class, parameters);
    IRequestHandler pageRequestHandler = new BookmarkablePageRequestHandler(testPageProvider);
    Url url = tester.getApplication().getRootRequestMapper().mapHandler(pageRequestHandler);
    tester.getRequest().setParameter("q_2", "q_2_value");
    tester.getRequest().setUrl(url);

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   * Asserting that multiple parameters added in request and PageParameters get processed
   */
  @Test
  public void setMultiValueQueryParameter()
  {
    PageParameters parameters = new PageParameters();
    parameters.add("q_1", "q_1_value_1");
    parameters.add("q_1", "q_1_value_2");
    IPageProvider testPageProvider = new PageProvider(MockPageParametersAware.class, parameters);
    IRequestHandler pageRequestHandler = new BookmarkablePageRequestHandler(testPageProvider);
    Url url = tester.getApplication().getRootRequestMapper().mapHandler(pageRequestHandler);
    tester.getRequest().addParameter("q_2", "q_2_value_1");
    tester.getRequest().addParameter("q_2", "q_2_value_2");

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  @Test
  public void reuseAfterException()
  {
    try
    {
      tester.startPage(new MockPageParameterPage(new PageParameters())
      {
        @Override
        protected void onInitialize()
        {
          throw new IllegalStateException();
        }
      });
    }
    catch (Exception expected)
    {
    }


    tester.startPage(new MockPageParameterPage(new PageParameters()));
  }

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      // get the query string
      int queryStringPos = reference.indexOf("?");
      if (queryStringPos != -1)
      {
        final String queryString = reference.substring(queryStringPos + 1);
        pageParameters = new PageParameters();
        RequestUtils.decodeParameters(queryString, pageParameters);
        infoPath = reference.substring(0, queryStringPos);
      }
      else
      {

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      }
      packageRelativeClassName = transformForUrl(packageRelativeClassName);
      url.getSegments().add(packageRelativeClassName);
      encodePageComponentInfo(url, info.getPageComponentInfo());


      PageParameters copy = new PageParameters(info.getPageParameters());
      if (setPlaceholders(copy, url) == false)
      {
        // mandatory parameter is not provided => cannot build Url
        return null;
      }

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