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Some refactorings.

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This commit is contained in:
Ziver Koc 2016-06-16 16:34:25 +02:00
parent 645dd41074
commit 2c46c7ecf3
1 changed files with 56 additions and 29 deletions
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85
src/zutil/ui/Navigation.java
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@ -31,10 +31,9 @@ import java.util.*;
*/
public class Navigation implements Iterable{
private static final String NAVIGATION_URL_KEY = "i";
private static int nextId = 0;
private static HashMap<Integer, Navigation> navMap = new HashMap<Integer, Navigation>();
private static HashMap<String, Navigation> navMap = new HashMap<>();
private final Integer id;
private final String id;
private String name;
private int weight;
private Object resource;
@ -44,8 +43,9 @@ public class Navigation implements Iterable{
private Navigation(String name) {
this.id = nextId++;
private Navigation(String id, String name) {
this.id = id;
this.navMap.put(this.id, this);
this.name = name;
this.subNav = new ArrayList<>();
@ -58,12 +58,12 @@ public class Navigation implements Iterable{
/**
* Will create a new sub-nav if it does not already exist or return a existing one.
*/
public Navigation createSubNav(String name) {
public Navigation createSubNav(String id, String name) {
Navigation nav = getSubNav(name);
if(nav != null)
return nav;
nav = new Navigation(name);
nav = new Navigation(id, name);
nav.setParentNav(this);
subNav.add(nav);
sortSubNavs();
@ -103,9 +103,6 @@ public class Navigation implements Iterable{
public String getName(){
return name;
}
public String getUrl(){
return "?"+NAVIGATION_URL_KEY+"="+this.id;
}
public Object getResource(){
return resource;
}
@ -144,24 +141,35 @@ public class Navigation implements Iterable{
/**
* Will create a clone of the navigation tree with some request instance specific information
*/
public NavInstance createNavInstance(Map<String, String> request){
return createNavInstance(getBreadcrumb(request));
public NavInstance createParameterizedNavInstance(Map<String, String> request){
return createParameterizedNavInstance(getBreadcrumb(getNavigation(request)));
}
private NavInstance createNavInstance(List<Navigation> activeList){
NavInstance instance = new NavInstance(this);
private NavInstance createParameterizedNavInstance(List<Navigation> activeList){
NavInstance instance = new ParameterizedNavInstance(this);
instance.setActive(activeList.contains(this));
for (Navigation nav : subNav)
instance.addSubNav(nav.createNavInstance(activeList));
instance.addSubNav(nav.createParameterizedNavInstance(activeList));
return instance;
}
public NavInstance createPagedNavInstance(Map<String, String> request){
return createPagedNavInstance(getBreadcrumb(getNavigation(request)));
}
private NavInstance createPagedNavInstance(List<Navigation> activeList){
NavInstance instance = new PagedNavInstance(this);
instance.setActive(activeList.contains(this));
for (Navigation nav : subNav)
instance.addSubNav(nav.createPagedNavInstance(activeList));
return instance;
}
public static Navigation createRootNav(){
return new Navigation(null);
return new Navigation(null, null);
}
public static Navigation getRootNav(Map<String, String> request) {
List<Navigation> breadcrumb = getBreadcrumb(request);
List<Navigation> breadcrumb = getBreadcrumb(getNavigation(request));
if (!breadcrumb.isEmpty())
return breadcrumb.get(0);
return null;
@ -177,17 +185,19 @@ public class Navigation implements Iterable{
}
/**
* @param request A map of all url parameters sent from client
* @param pageId the ID of the requested page
* @return a List of Navigation objects depicting the navigation hierarchy for the
* requested page from the client. First entry will be the root navigation object.
*/
public static List<Navigation> getBreadcrumb(Map<String, String> request) {
public static List<Navigation> getBreadcrumb(String pageId) {
return getBreadcrumb(navMap.get(pageId));
}
private static List<Navigation> getBreadcrumb(Navigation nav) {
LinkedList list = new LinkedList();
Navigation current = getNavigation(request);
if (current != null){
while(current != null){
list.addFirst(current);
current = current.parentNav;
if (nav != null){
while(nav != null){
list.addFirst(nav);
nav = nav.parentNav;
}
}
return list;
@ -196,10 +206,10 @@ public class Navigation implements Iterable{
public static class NavInstance{
private Navigation nav;
private boolean active;
private ArrayList<NavInstance> subNavs;
public abstract static class NavInstance{
protected Navigation nav;
protected boolean active;
protected ArrayList<NavInstance> subNavs;
protected NavInstance(Navigation nav){
this.nav = nav;
@ -220,9 +230,10 @@ public class Navigation implements Iterable{
// Mirror getters from Navigation
public String getName(){ return nav.getName(); }
public String getUrl(){ return nav.getUrl(); }
public Object getResource(){ return nav.getResource(); }
public abstract String getUrl();
public boolean equals(Object o){
if (o instanceof Navigation)
@ -232,4 +243,20 @@ public class Navigation implements Iterable{
return false;
}
}
public static class ParameterizedNavInstance extends NavInstance{
protected ParameterizedNavInstance(Navigation nav) { super(nav); }
public String getUrl(){
return "?"+NAVIGATION_URL_KEY+"="+nav.id;
}
}
public static class PagedNavInstance extends NavInstance{
protected PagedNavInstance(Navigation nav) { super(nav); }
public String getUrl(){
return nav.id;
}
}
}