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1
5 package org.exoplatform.portlets.content.explorer.component;
6
7 import java.io.File  ;
8 import java.util.ArrayList ;
9 import java.util.List ;
10 import org.exoplatform.portlets.content.explorer.component.model.FileNodeDescriptor;
11 import org.exoplatform.portlets.content.explorer.component.model.NodeDescriptor;
12 import org.exoplatform.services.cache.SimpleExoCache ;
13
17 public class UIFileChildrenInfo extends UIChildrenInfo {
18 private static SimpleExoCache cache_ = new SimpleExoCache(200) ;
19
20 public void onRemove(UIExplorer uiExplorer, NodeDescriptor node) {
21 UIFileExplorer explorer = (UIFileExplorer) uiExplorer ;
22 if(!node.isLeafNode()) {
23 cache_.remove(explorer.getRelativePathBaseDir() + node.getUri()) ;
24 }
25 cache_.remove(explorer.getRelativePathBaseDir() + node.getParentUri()) ;
26 }
27
28 public void onAddChild(UIExplorer uiExplorer, NodeDescriptor node) {
29 UIFileExplorer explorer = (UIFileExplorer) uiExplorer ;
30 cache_.remove(explorer.getRelativePathBaseDir() + node.getUri()) ;
31 onChange(uiExplorer, node) ;
32 }
33
34 protected List getChildren(UIExplorer uiExplorer, NodeDescriptor node) {
35 List nodeChildren = (List ) cache_.get(node.getUri()) ;
36 if(nodeChildren != null) return nodeChildren;
37 UIFileExplorer explorer = (UIFileExplorer) uiExplorer ;
38 String realPath = explorer.getRealPathBaseDir() + node.getUri() ;
39 File file = new File (realPath) ;
40 File [] children = file.listFiles() ;
41 nodeChildren = new ArrayList () ;
42 String parentUri = node.getUri() ;
43 if ("/".equals(parentUri)) parentUri = "" ;
44 for (int i = 0 ; i < children.length ; i++) {
45 File child = children[i] ;
46 String childUri = parentUri + "/" + child.getName() ;
47 NodeDescriptor uiChild = new FileNodeDescriptor(child, childUri, parentUri) ;
48 nodeChildren.add(uiChild) ;
49 }
50 cache_.put(explorer.getRelativePathBaseDir() + node.getUri(), nodeChildren) ;
51 return nodeChildren ;
52 }
53 } |
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