001/*
002 *  Copyright 2018 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.runtime.model;
017
018import java.util.ArrayList;
019import java.util.Collections;
020import java.util.List;
021
022/**
023 * Abstract class for group of view items 
024 */
025public abstract class AbstractViewItemGroup implements ViewItemGroup
026{
027    /** The role of the view item group */
028    protected String _role;
029    
030    /** The view item group's children */
031    protected List<ViewItem> _children = new ArrayList<>();
032    
033    public String getRole()
034    {
035        return _role;
036    }
037    
038    public void setRole(String role)
039    {
040        _role = role;
041    }
042    
043    public List<ViewItem> getViewItems()
044    {
045        return Collections.unmodifiableList(_children);
046    }
047    
048    public void addViewItem(ViewItem item)
049    {
050        _children.add(item);
051    }
052    
053    public void insertViewItem(ViewItem item, int index)
054    {
055        if (index >= 0 && index < _children.size())
056        {
057            _children.add(index, item);
058        }
059        else
060        {
061            throw new IllegalArgumentException("Unable to insert an item at index " + index + ". This group contains " + _children.size() + "items.");
062        }
063    }
064}