| // Copyright 2004 The Apache Software Foundation |
| // |
| // 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.apache.tapestry.workbench.tree.examples.fsmodel; |
| |
| import java.io.Serializable; |
| import java.util.Iterator; |
| |
| import org.apache.tapestry.contrib.tree.model.ITreeNode; |
| import org.apache.tapestry.contrib.tree.simple.SimpleTreeDataModel; |
| |
| /** |
| * @author ceco |
| */ |
| public class FileSystemDataModel extends SimpleTreeDataModel |
| implements Serializable { |
| /** |
| * Constructor for FileSystemDataModel. |
| * @param objRootNode |
| */ |
| public FileSystemDataModel(ITreeNode objRootNode) { |
| super(objRootNode); |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.tree.model.ITreeDataModel#getObject(Object) |
| */ |
| public Object getObject(Object objUniqueKey) { |
| return findNode(objUniqueKey, (IFileSystemTreeNode)getRoot()); |
| } |
| |
| private IFileSystemTreeNode findNode(Object objUniqueKey, |
| IFileSystemTreeNode objParentNode) { |
| String strUniqueKey = (String) objUniqueKey; |
| String strParentUniqueKey = objParentNode.getAbsolutePath(); |
| |
| if (strUniqueKey.equals(strParentUniqueKey)) { |
| return objParentNode; |
| } |
| |
| IFileSystemTreeNode obj = null; |
| |
| if(strUniqueKey.startsWith(strParentUniqueKey)) |
| { |
| for (Iterator iter = objParentNode.getChildren().iterator(); iter.hasNext();) { |
| IFileSystemTreeNode element = (IFileSystemTreeNode) iter.next(); |
| obj = findNode(objUniqueKey, element); |
| if (obj != null) { |
| break; |
| } |
| } |
| } |
| |
| return obj; |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.tree.model.ITreeDataModel#getUniqueKey(Object, Object) |
| */ |
| public Object getUniqueKey(Object objTarget, Object objParentUniqueKey) { |
| IFileSystemTreeNode objNode = (IFileSystemTreeNode) objTarget; |
| return objNode.getAbsolutePath(); |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.tree.model.ITreeDataModel#isAncestorOf(Object, Object) |
| */ |
| public boolean isAncestorOf(Object objChildUniqueKey, |
| Object objParentUniqueKey) { |
| String strChildAbsolutePath = (String)objChildUniqueKey; |
| String strParentAbsolutePath = (String)objParentUniqueKey; |
| |
| if("".equals(strParentAbsolutePath)) { |
| return true; |
| } |
| |
| return strChildAbsolutePath.lastIndexOf(strParentAbsolutePath) > -1; |
| } |
| |
| /** |
| * @see org.apache.tapestry.contrib.tree.model.ITreeDataModel#getParentUniqueKey(Object) |
| */ |
| public Object getParentUniqueKey(Object objChildUniqueKey) { |
| IFileSystemTreeNode objNode = |
| (IFileSystemTreeNode) getObject(objChildUniqueKey); |
| return objNode.getParent(); |
| } |
| |
| } |