01: /*
02: * Copyright (c) 2002-2008 Gargoyle Software Inc. All rights reserved.
03: *
04: * Redistribution and use in source and binary forms, with or without
05: * modification, are permitted provided that the following conditions are met:
06: *
07: * 1. Redistributions of source code must retain the above copyright notice,
08: * this list of conditions and the following disclaimer.
09: * 2. Redistributions in binary form must reproduce the above copyright notice,
10: * this list of conditions and the following disclaimer in the documentation
11: * and/or other materials provided with the distribution.
12: * 3. The end-user documentation included with the redistribution, if any, must
13: * include the following acknowledgment:
14: *
15: * "This product includes software developed by Gargoyle Software Inc.
16: * (http://www.GargoyleSoftware.com/)."
17: *
18: * Alternately, this acknowledgment may appear in the software itself, if
19: * and wherever such third-party acknowledgments normally appear.
20: * 4. The name "Gargoyle Software" must not be used to endorse or promote
21: * products derived from this software without prior written permission.
22: * For written permission, please contact info@GargoyleSoftware.com.
23: * 5. Products derived from this software may not be called "HtmlUnit", nor may
24: * "HtmlUnit" appear in their name, without prior written permission of
25: * Gargoyle Software Inc.
26: *
27: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
28: * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
29: * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE
30: * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
33: * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
36: * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37: */
38: package com.gargoylesoftware.htmlunit;
39:
40: import java.io.IOException;
41: import java.io.Serializable;
42: import java.net.URL;
43:
44: /**
45: * The default handler for page refreshes. This refresh handler immediately
46: * refreshes the specified page, using the specified URL and ignoring the
47: * wait time.
48: *
49: * If you want a refresh handler that does not ignore the wait time,
50: * see {@link ThreadedRefreshHandler}.
51: *
52: * @version $Revision: 2132 $
53: * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
54: * @author Daniel Gredler
55: * @author Marc Guillemot
56: * @author Ahmed Ashour
57: */
58: public class ImmediateRefreshHandler implements RefreshHandler,
59: Serializable {
60:
61: private static final long serialVersionUID = 529942009235309224L;
62:
63: /**
64: * Immediately refreshes the specified page using the specified URL.
65: * @param page The page that is going to be refreshed.
66: * @param url The URL where the new page will be loaded.
67: * @param seconds The number of seconds to wait before reloading the page (ignored!).
68: * @throws IOException if the refresh fails
69: */
70: public void handleRefresh(final Page page, final URL url,
71: final int seconds) throws IOException {
72: final WebWindow window = page.getEnclosingWindow();
73: if (window == null) {
74: return;
75: }
76: final WebClient client = window.getWebClient();
77: if (page.getWebResponse().getUrl().toExternalForm().equals(
78: url.toExternalForm())
79: && SubmitMethod.GET.equals(page.getWebResponse()
80: .getRequestMethod())) {
81: final String msg = "Refresh Aborted by HtmlUnit: "
82: + "Attempted to refresh a page using an ImmediateRefreshHandler "
83: + "which could have caused an OutOfMemoryError "
84: + "Please use WaitingRefreshHandler or ThreadedRefreshHandler instead.";
85: throw new RuntimeException(msg);
86: }
87: client.getPage(window, new WebRequestSettings(url));
88: }
89:
90: }
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