| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.cocoon.portal.layout.impl; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.cocoon.portal.layout.AbstractLayout; |
| import org.apache.cocoon.portal.layout.CompositeLayout; |
| import org.apache.cocoon.portal.layout.Item; |
| import org.apache.cocoon.portal.layout.Layout; |
| import org.apache.cocoon.util.ClassUtils; |
| |
| |
| /** |
| * A composite layout is a layout that contains other layouts. |
| * |
| * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a> |
| * @author <a href="mailto:volker.schmitt@basf-it-services.com">Volker Schmitt</a> |
| * |
| * @version CVS $Id$ |
| */ |
| public class CompositeLayoutImpl |
| extends AbstractLayout |
| implements CompositeLayout { |
| |
| protected List items = new ArrayList(3); |
| |
| /** The class name of the items */ |
| protected String itemClassName; |
| |
| /** |
| * Constructor |
| */ |
| public CompositeLayoutImpl() { |
| // nothing to do |
| } |
| |
| /** |
| * Add indexed item to the itemList. |
| * @param index index for the position inside the list |
| * @param item item to add |
| */ |
| public final void addItem(int index, Item item) { |
| this.items.add(index, item); |
| item.setParent(this); |
| } |
| |
| /** |
| * Add Item to the ItemList. |
| * @param item item to add |
| */ |
| public final void addItem(Item item) { |
| this.items.add(item); |
| item.setParent(this); |
| } |
| |
| /** |
| * Get Item from the ItemList. |
| * @return Item |
| */ |
| public final Item getItem(int index) { |
| return (Item) this.items.get(index); |
| } |
| |
| /** |
| * Get the ItemList. |
| * @return items |
| */ |
| public final List getItems() { |
| return this.items; |
| } |
| |
| /** |
| * Get size of ItemList. |
| * @return size |
| */ |
| public final int getSize() { |
| return this.items.size(); |
| } |
| |
| public final void removeItem(Item item) { |
| this.items.remove(item); |
| item.setParent(null); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.portal.layout.CompositeLayout#createNewItem() |
| */ |
| public Item createNewItem() { |
| if ( this.itemClassName == null ) { |
| return new Item(); |
| } |
| try { |
| return (Item)ClassUtils.newInstance(this.itemClassName); |
| } catch (Exception ignore) { |
| return new Item(); |
| } |
| } |
| |
| /** |
| * @return Returns the item class name. |
| */ |
| public String getItemClassName() { |
| return this.itemClassName; |
| } |
| |
| /** |
| * @param value The item class name to set. |
| */ |
| public void setItemClassName(String value) { |
| this.itemClassName = value; |
| } |
| |
| /* (non-Javadoc) |
| * @see java.lang.Object#clone() |
| */ |
| protected Object clone() throws CloneNotSupportedException { |
| CompositeLayoutImpl clone = (CompositeLayoutImpl)super.clone(); |
| |
| // we are not cloning the items |
| clone.items = new ArrayList(); |
| |
| return clone; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.apache.cocoon.portal.layout.Layout#copy(java.util.Map) |
| */ |
| public Layout copy() { |
| CompositeLayoutImpl clone = (CompositeLayoutImpl)super.copy(); |
| final Iterator i = this.items.iterator(); |
| while ( i.hasNext() ) { |
| final Item current = (Item)i.next(); |
| final Item clonedItem = current.copy(clone); |
| clone.addItem(clonedItem); |
| } |
| return clone; |
| } |
| |
| } |