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/hudson-core/src/main/java/hudson/model/Failure.java

http://github.com/hudson/hudson
Java | 65 lines | 25 code | 6 blank | 34 comment | 2 complexity | 381c8fdf977ff1e9d1c928d2ad680c9c MD5 | raw file
 1/*
 2 * The MIT License
 3 *
 4 * Copyright (c) 2004-2010, Sun Microsystems, Inc., Kohsuke Kawaguchi
 5 *
 6 * Permission is hereby granted, free of charge, to any person obtaining a copy
 7 * of this software and associated documentation files (the "Software"), to deal
 8 * in the Software without restriction, including without limitation the rights
 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24package hudson.model;
25
26import org.kohsuke.stapler.HttpResponse;
27import org.kohsuke.stapler.StaplerRequest;
28import org.kohsuke.stapler.StaplerResponse;
29
30import javax.servlet.ServletException;
31import java.io.IOException;
32
33/**
34 * Represents an error induced by user, encountered during HTTP request processing.
35 *
36 * <p>
37 * The error page is rendered into HTML, but without a stack trace. So only use
38 * this exception when the error condition is anticipated by the program, and where
39 * we nor users don't need to see the stack trace to figure out the root cause. 
40 *
41 * @author Kohsuke Kawaguchi
42 * @since 1.321
43 */
44public class Failure extends RuntimeException implements HttpResponse {
45    private final boolean pre;
46
47    public Failure(String message) {
48        this(message,false);
49    }
50
51    public Failure(String message, boolean pre) {
52        super(message);
53        this.pre = pre;
54    }
55
56    public void generateResponse(StaplerRequest req, StaplerResponse rsp, Object node) throws IOException, ServletException {
57        req.setAttribute("message",getMessage());
58        if(pre)
59            req.setAttribute("pre",true);
60        if (node instanceof AbstractItem) // Maintain ancestors
61            rsp.forward(Hudson.getInstance(), ((AbstractItem)node).getUrl() + "error", req);
62        else
63            rsp.forward(node instanceof AbstractModelObject ? node : Hudson.getInstance() ,"error", req);
64    }
65}