1 /*
2 * Copyright (c) 2002-2025 Gargoyle Software Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 package org.htmlunit;
16
17 import java.io.IOException;
18 import java.io.Serializable;
19 import java.net.URL;
20
21 /**
22 * This refresh handler immediately refreshes the specified page,
23 * using the specified URL and ignoring the wait time.
24 * <p>
25 * If you want a refresh handler that does not ignore the wait time,
26 * see {@link ThreadedRefreshHandler}.
27 *
28 * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
29 * @author Daniel Gredler
30 * @author Marc Guillemot
31 * @author Ahmed Ashour
32 */
33 public class ImmediateRefreshHandler implements RefreshHandler, Serializable {
34
35 /**
36 * Immediately refreshes the specified page using the specified URL.
37 * @param page the page that is going to be refreshed
38 * @param url the URL where the new page will be loaded
39 * @param seconds the number of seconds to wait before reloading the page (ignored!)
40 * @throws IOException if the refresh fails
41 */
42 @Override
43 public void handleRefresh(final Page page, final URL url, final int seconds) throws IOException {
44 final WebWindow window = page.getEnclosingWindow();
45 if (window == null) {
46 return;
47 }
48 if (page.getUrl().toExternalForm().equals(url.toExternalForm())
49 && HttpMethod.GET == page.getWebResponse().getWebRequest().getHttpMethod()) {
50 final String msg = "Refresh to " + url + " (" + seconds + "s) aborted by HtmlUnit: "
51 + "Attempted to refresh a page using an ImmediateRefreshHandler "
52 + "which could have caused an OutOfMemoryError "
53 + "Please use WaitingRefreshHandler or ThreadedRefreshHandler instead.";
54 throw new RuntimeException(msg);
55 }
56
57 window.getWebClient().getPage(window, new WebRequest(url));
58 }
59
60 }