I am using a similar code to access templates from another webapp, but the
sample DatabaseResourceResolver shows you the basis:
| import java.io.ByteArrayInputStream;
| import java.io.IOException;
| import java.io.InputStream;
| import java.net.MalformedURLException;
| import java.net.URL;
| import java.net.URLConnection;
| import java.net.URLStreamHandler;
|
| import com.sun.facelets.impl.DefaultResourceResolver;
|
| /**
| * @author Thomas Maerz ([EMAIL PROTECTED])
| */
| public class DatabaseResourceResolver extends DefaultResourceResolver {
|
| @Override
| public URL resolveUrl(String path) {
| URL url = super.resolveUrl(path);
| if (url != null) {
| return url;
| }
|
| try {
| return new URL("internal", null, 0, path,
getHandler(path));
| } catch (MalformedURLException e) {
| }
| return null;
| }
|
| private static URLStreamHandler getHandler(final String path) {
|
| return new URLStreamHandler() {
|
| @Override
| protected URLConnection openConnection(URL url) throws
IOException {
| return new URLConnection(url) {
|
| @Override
| public void connect() throws
IOException {
| }
|
| @Override
| public InputStream getInputStream()
throws IOException {
| // Connect to Database and
return your content
| return new
ByteArrayInputStream(new byte[] {});
| }
|
| };
| }
|
| };
|
| }
|
| }
|
web.xml
| <context-param>
| <param-name>facelets.RESOURCE_RESOLVER</param-name>
| <param-value>DatabaseResourceResolver</param-value>
| </context-param>
|
Facelets file
| <ui:composition
| xmlns:ui="http://java.sun.com/jsf/facelets";
| template="/cms/some/path/index.html">
|
But there are some pitfalls:
- Facelets will cache the the returned URL with the path as key
- You have to handle reloading yourself (Override getLastModified() in
URLConnection)
- return valid XML
Hope that helps,
Tom
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