| 1 | package dolda.jsvc.util; |
| 2 | |
| 3 | import dolda.jsvc.*; |
| 4 | import java.net.*; |
| 5 | |
| 6 | public class Redirect extends RequestRestart { |
| 7 | private URL abs; |
| 8 | private String rel; |
| 9 | |
| 10 | protected Redirect() { |
| 11 | } |
| 12 | |
| 13 | public Redirect(URL to) { |
| 14 | this.abs = to; |
| 15 | this.rel = null; |
| 16 | } |
| 17 | |
| 18 | public Redirect(String to) { |
| 19 | this.abs = null; |
| 20 | this.rel = to; |
| 21 | } |
| 22 | |
| 23 | public void respond(Request req) { |
| 24 | req.status(303); |
| 25 | req.outheaders().put("Location", target(req).toString()); |
| 26 | } |
| 27 | |
| 28 | protected URL target(Request req) { |
| 29 | if(this.abs != null) { |
| 30 | return(this.abs); |
| 31 | } else { |
| 32 | try { |
| 33 | return(new URL(req.url(), this.rel)); |
| 34 | } catch(MalformedURLException e) { |
| 35 | throw(new RuntimeException("Bad relative URL: + " + this.rel, e)); |
| 36 | } |
| 37 | } |
| 38 | } |
| 39 | } |