org.xlcloud.console.menu.MenuCollectorBean Maven / Gradle / Ivy

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/*
 * Copyright 2012 AMG.lab, a Bull Group Company
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.xlcloud.console.menu;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.enterprise.context.SessionScoped;
import javax.inject.Named;

/**
 * Collects all menu item elements and keeps them for current session.
 * @author Tomek Adamczewski, AMG.net
 */
@SessionScoped
@Named
public class MenuCollectorBean implements Serializable {

    private static final long serialVersionUID = -6816011842956006625L;

    private final Map groups = new HashMap<>();

    /**
     * Adds an new menu item to the collection
     * @param menuItem menu item
     */
    public void addMenuItem(MenuItem menuItem) {
        MenuGroupLabel groupLabel = menuItem.getGroupLabel();
        MenuGroup group = groups.get(groupLabel);

        if (group == null) {
            group = new MenuGroup(groupLabel);
            groups.put(groupLabel, group);
        }
        
        if (!group.getItems().contains(menuItem)) {
            group.addItem(menuItem);
        }
    }

    /**
     * @return the menu groups
     */
    public List getGroups() {
        return new ArrayList<>(groups.values());
    }
    
    /**
     * Returns active menu item, matched by the specified path.
     * @param path request path
     * @return active menu item
     */
    public MenuItem getActiveMenuItem(String path) {
        for (MenuGroup menuGroup : groups.values()) {
            MenuItem activeMenuItem = menuGroup.getActiveMenuItem(path);
            if (activeMenuItem != null) {
                return activeMenuItem;
            }
        }
        
        return null;
    }
}