Problem implementing the richfaces Tree example.
Hello,
I'm trying to implement a rich:tree sample with FineSystemBean and no tree is rendered.
I narrowed it down to the problem with FileSystemNode class that always returns CHILDREN_ABSENT due to externalContext.getResourcePaths(this.path) returning null.
I know it has something to do with ExternalContext and the Path parameter that I pass to FileSystemNode.getNodes(),
I tried to pass /proj1, /proj1/resources and /WEB-INF/src but nothing worked.
Below is the code.
Please help.
Thanks in advance for any suggestion.
pn.
FileSystemNode:
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package org.richfaces.treemodeladaptor;
import java.util.Set;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
public class FileSystemNode {
private String path;
private static FileSystemNode[] CHILDREN_ABSENT = new FileSystemNode[0];
private FileSystemNode[] children;
private String shortPath;
public FileSystemNode(String path) {
System.out.println("path: " + path);
this.path = path;
int idx = path.lastIndexOf('/');
if (idx != -1) {
shortPath = path.substring(idx + 1);
} else {
shortPath = path;
}
}
public synchronized FileSystemNode[] getNodes() {
if (children == null) {
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext externalContext = facesContext.getExternalContext();
System.out.println("User is: " + externalContext.getRemoteUser());
System.out.println("URL: "+ externalContext.getRequestContextPath());
System.out.println("Paths: "+ externalContext.getResourcePaths(this.path));
Set resourcePaths = externalContext.getResourcePaths(this.path);
if (resourcePaths != null) {
Object[] nodes = (Object[]) resourcePaths.toArray();
children = new FileSystemNode[nodes.length];
System.out.println("from if ...");
for (int i = 0; i < nodes.length; i++) {
String nodePath = nodes.toString();
if (nodePath.endsWith("/")) {
nodePath = nodePath.substring(0, nodePath.length() - 1);
}
children = new FileSystemNode(nodePath);
}
} else {
System.out.println("from else ...");
children = CHILDREN_ABSENT;
}
}
return children;
}
public String toString() {
return shortPath;
}
}
FileSystemBean:
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package org.richfaces.treemodeladaptor;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Scope;
@Name ("fileSystemBean")
@Scope(org.jboss.seam.ScopeType.SESSION)
public class FileSystemBean {
//private static String SRC_PATH = "/WEB-INF/src";
private static String SRC_PATH = "/proj1";
private FileSystemNode[] srcRoots;
public synchronized FileSystemNode[] getSourceRoots() {
System.out.println("Hello from bean");
if (srcRoots == null) {
System.out.println("inside if");
srcRoots = new FileSystemNode(SRC_PATH).getNodes();
}
return srcRoots;
}
}
Console Output:
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14:13:13,656 INFO [STDOUT] Hello from bean
14:13:13,656 INFO [STDOUT] inside if
14:13:13,656 INFO [STDOUT] path: /proj1
14:13:13,656 INFO [STDOUT] User is: null
14:13:13,656 INFO [STDOUT] URL: /proj1
14:13:13,656 INFO [STDOUT] Paths: null
14:13:13,656 INFO [STDOUT] from else ...
the environment is:
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eclipse with jboss tools + seam 2.0 + jboss 4.2.3
