/*
- * Svjatoslav Commons - shared library of common functionality.
- * Copyright ©2012-2014, Svjatoslav Agejenko, svjatoslav@svjatoslav.eu
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 3 of the GNU Lesser General Public License
- * or later as published by the Free Software Foundation.
+ * Svjatoslav Commons - shared library of common functionality. Author: Svjatoslav Agejenko.
+ * This project is released under Creative Commons Zero (CC0) license.
*/
-
package eu.svjatoslav.commons.network.navigation;
+import javax.servlet.http.HttpServletRequest;
import java.net.MalformedURLException;
import java.net.URL;
-import javax.servlet.http.HttpServletRequest;
-
public class Navigation {
- private NavigationItem rootNavigationItem;
-
- private NavigationItem defaultNavigationItem;
-
- public NavigationItem getDefaultNavigationItem() {
- return defaultNavigationItem;
- }
-
- private String getGetNotNullString(final String string) {
- if (string != null)
- return string;
-
- return "";
- }
-
- public NavigationItem getRootNavigationItem() {
- return rootNavigationItem;
- }
-
- public NavigationItem getSelectedItem(final HttpServletRequest request) {
- final String requestUrl = request.getRequestURL().toString();
+ private NavigationItem root = new NavigationItem(null, null, null);
- try {
- final String requestPath = new URL(requestUrl).getPath();
+ public NavigationItem getRoot(){
+ return root;
+ }
- final NavigationItem match = rootNavigationItem
- .getMatchingNavigationItem(requestPath);
+ public NavigationItem getSelectedItem(final HttpServletRequest request) {
+ final String requestUrl = request.getRequestURL().toString();
- if (match != null)
- return match;
- } catch (final MalformedURLException e) {
- System.out.println("Cannot handle URL: " + requestUrl);
- e.printStackTrace();
- }
+ final String requestPath;
+ try {
+ requestPath = new URL(requestUrl).getPath();
+ } catch (MalformedURLException e) {
+ throw new IllegalArgumentException("Illegal request URL provided." , e);
+ }
- return getDefaultNavigationItem();
- }
+ @SuppressWarnings("unchecked") final NavigationItem match = root.getMatch(requestPath);
- public String getTopMenu(final HttpServletRequest request) {
+ if (match != null)
+ return match;
- final NavigationItem selectedItem = getSelectedItem(request);
- final StringBuffer result = new StringBuffer();
+ return root.getDefaultNavigationItem();
+ }
- result.append("<div class=\""
- + getGetNotNullString(rootNavigationItem.getCssPrefix())
- + "navigationMenu\">");
+ @SuppressWarnings("unchecked")
+ public String getTopMenu(final HttpServletRequest request) {
- for (final NavigationItem item : getRootNavigationItem()
- .getSubElements()) {
+ final NavigationItem selectedItem = getSelectedItem(request);
+ final StringBuilder result = new StringBuilder();
- if (item == selectedItem)
- result.append("<a class=\""
- + getGetNotNullString(item.getCssPrefix())
- + "menuItemSelected\" href=\"" + item.getLinkUrl()
- + "\">");
- else
- result.append("<a class=\""
- + getGetNotNullString(item.getCssPrefix())
- + "menuItem\" href=\"" + item.getLinkUrl() + "\">");
+ result.append("<div class=\"navigationMenu\">");
- result.append("<div>" + item.getTitle() + "</div>");
- result.append("</a>");
- }
+ for (final NavigationItem item : root.getChildren()) {
- result.append("</div>");
+ if (item == selectedItem)
+ result.append("<a class=\"menuItemSelected\" href=\""
+ + item.getUrl() + "\">");
+ else
+ result.append("<a class=\"menuItem\" href=\""
+ + item.getUrl() + "\">");
- return result.toString();
- }
+ result.append("<div>" + item.getTitle() + "</div>");
+ result.append("</a>");
+ }
- public NavigationItem setDefaultNavigationItem(
- final NavigationItem defaultNavigationItem) {
- this.defaultNavigationItem = defaultNavigationItem;
- return defaultNavigationItem;
- }
+ result.append("</div>");
- public NavigationItem setRootNavigationItem(
- final NavigationItem rootNavigationItem) {
- this.rootNavigationItem = rootNavigationItem;
- return rootNavigationItem;
- }
+ return result.toString();
+ }
}