[jboss-cvs] jboss-seam/examples/wiki/src/main/org/jboss/seam/wiki/util ...

[Christian Bauer]

  User: cbauer  
  Date: 07/03/22 08:16:08

  Added:       examples/wiki/src/main/org/jboss/seam/wiki/util 
                        WikiUtil.java
  Log:
  Cleaned up wiki core link engine
  
  Revision  Changes    Path
  1.1      date: 2007/03/22 12:16:08;  author: cbauer;  state: Exp;jboss-seam/examples/wiki/src/main/org/jboss/seam/wiki/util/WikiUtil.java
  
  Index: WikiUtil.java
  ===================================================================
  package org.jboss.seam.wiki.util;
  
  import org.jboss.seam.annotations.Name;
  import org.jboss.seam.wiki.core.model.*;
  import org.jboss.seam.Component;
  
  import javax.faces.component.UIData;
  import javax.faces.context.FacesContext;
  import javax.servlet.http.HttpSession;
  import java.util.Collection;
  import java.util.List;
  
  /**
   * Adds stuff to and for JSF that should be there but isn't. Also stuff that is exposed
   * as a Facelets function, and various other useful static methods that are called from
   * everywhere.
   *
   * @author Christian Bauer
   */
  @Name("wikiUtil")
  public class WikiUtil {
  
      // Creates clean alphanumeric UpperCaseCamelCase
      public static String convertToWikiName(String realName) {
          StringBuilder wikiName = new StringBuilder();
          // Remove everything that is not alphanumeric or whitespace, then split on word boundaries
          String[] tokens = realName.replaceAll("[^\\p{Alnum}|\\s]+", "").split("\\s");
          for (String token : tokens) {
              // Append word, uppercase first letter of word
              if (token.length() > 1) {
                  wikiName.append(token.substring(0,1).toUpperCase());
                  wikiName.append(token.substring(1));
              } else {
                  wikiName.append(token.toUpperCase());
              }
          }
          return wikiName.toString();
      }
  
      // Replacement for missing instaceOf in EL (can't use string comparison, might be proxy)
      public static boolean isDirectory(Node node) {
          return node != null && Directory.class.isAssignableFrom(node.getClass());
      }
  
      public static boolean isDocument(Node node) {
          return node != null && Document.class.isAssignableFrom(node.getClass());
      }
  
      public static boolean isFile(Node node) {
          return node != null && File.class.isAssignableFrom(node.getClass());
      }
  
      // EL is weak
      public static String truncateString(String string, int length, String appendString) {
          if (string.length() <= length) return string;
          return string.substring(0, length-1) + appendString;
      }
  
      public static String concat(String a, String b) {
          return a + b;
      }
  
      // Display all roles for a particular access level
      public static Role.AccessLevel resolveAccessLevel(Integer accessLevel) {
          List<Role.AccessLevel> accessLevels = (List<Role.AccessLevel>)Component.getInstance("accessLevelsList");
          return accessLevels.get(
                  accessLevels.indexOf(new Role.AccessLevel(accessLevel, null))
                 );
      }
  
      // Rendering made easy
      public static String renderURL(Node node) {
          if (isFile(node)) return renderFileLink((File)node);
          GlobalPreferences globalPrefs = (GlobalPreferences) Component.getInstance("globalPrefs");
          if (globalPrefs.getDefaultURLRendering().equals(GlobalPreferences.URLRendering.PERMLINK)) {
              return renderPermLink(node);
          } else {
              return renderWikiLink(node);
          }
      }
  
      public static String renderPermLink(Node node) {
          if (isFile(node)) return renderFileLink((File)node);
          GlobalPreferences globalPrefs = (GlobalPreferences) Component.getInstance("globalPrefs");
          String contextPath = FacesContext.getCurrentInstance().getExternalContext().getRequestContextPath();
          return contextPath + "/" + node.getId() + globalPrefs.getPermlinkSuffix();
      }
  
      public  static String renderWikiLink(Node node) {
          String contextPath = FacesContext.getCurrentInstance().getExternalContext().getRequestContextPath();
          if (node.getArea().getWikiname().equals(node.getWikiname()))
              return contextPath + "/" + node.getArea().getWikiname();
          return contextPath + "/" + node.getArea().getWikiname()  + "/" + node.getWikiname();
      }
  
      private static String renderFileLink(File file) {
          String contextPath = FacesContext.getCurrentInstance().getExternalContext().getRequestContextPath();
          return contextPath + "/files/download?fileId=" + file.getId();
      }
  
      public static String renderHomeURL(User user) {
          String contextPath = FacesContext.getCurrentInstance().getExternalContext().getRequestContextPath();
          return contextPath + "/" + user.getMemberHome().getParent().getWikiname() + "/" + user.getMemberHome().getWikiname();
  
      }
  
      public static int getSessionTimeoutSeconds() {
          return ((HttpSession) FacesContext.getCurrentInstance().getExternalContext().getSession(true)).getMaxInactiveInterval();
      }
  
      /**
       * Need to bind UI components to non-conversational backing beans.
       * That this is even needed makes no sense. Why can't I call the UI components
       * in the EL directly? Don't try components['id'], it won't work.
       */
      private UIData datatable;
      public UIData getDatatable() { return datatable; }
      public void setDatatable(UIData datatable) { this.datatable = datatable; }
  
      /**
       * Can't use col.size() in a value binding. Why can't I call arbitrary methods, even
       * with arguments, in a value binding? Java needs properties badly.
       */
      public static int sizeOf(Collection col) {
          return col.size();
      }
  }