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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
RestartService.java | 75% | 94.7% | 100% | 93.8% |
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// Copyright 2004, 2005 The Apache Software Foundation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package org.apache.tapestry.engine;
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import java.io.IOException;
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import java.util.HashMap;
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import java.util.Map;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.apache.commons.logging.Log;
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import org.apache.tapestry.IRequestCycle;
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import org.apache.tapestry.Tapestry;
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import org.apache.tapestry.request.ResponseOutputStream;
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import org.apache.tapestry.services.AbsoluteURLBuilder;
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import org.apache.tapestry.services.LinkFactory;
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import org.apache.tapestry.services.ServiceConstants;
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/**
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* Restarts the Tapestry application. This is normally reserved for dealing with catastrophic
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* failures of the application. Discards the {@link javax.servlet.http.HttpSession}, if any, and
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* redirects to the Tapestry application servlet URL (invoking the {@link HomeService}).
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*
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* @author Howard Lewis Ship
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* @since 1.0.9
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*/
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public class RestartService implements IEngineService |
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{ |
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/** @since 3.1 */
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private Log _log;
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/** @since 3.1 */
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private HttpServletRequest _request;
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/** @since 3.1 */
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private HttpServletResponse _response;
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/** @since 3.1 */
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private AbsoluteURLBuilder _builder;
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/** @since 3.1 */
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private LinkFactory _linkFactory;
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/** @since 3.1 */
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private String _servletPath;
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public ILink getLink(IRequestCycle cycle, Object parameter)
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{ |
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if (parameter != null) |
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throw new IllegalArgumentException(EngineMessages.serviceNoParameter(this)); |
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Map parameters = new HashMap();
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parameters.put(ServiceConstants.SERVICE, Tapestry.RESTART_SERVICE); |
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return _linkFactory.constructLink(cycle, parameters, true); |
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} |
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public void service(IRequestCycle cycle, ResponseOutputStream output) throws ServletException, |
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IOException |
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{ |
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HttpSession session = _request.getSession(); |
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if (session != null) |
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{ |
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try
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{ |
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session.invalidate(); |
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} |
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catch (IllegalStateException ex)
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{ |
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_log.warn("Exception thrown invalidating HttpSession.", ex);
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// Otherwise, ignore it.
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} |
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} |
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// Make isStateful() return false, so that the servlet doesn't
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// try to store the engine back into the (now invalid) session.
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// TODO: How to get the EngineManager to *not* try and
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// store the engine back in the (now invalid) session.
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String url = _builder.constructURL(_servletPath); |
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_response.sendRedirect(url); |
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} |
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public String getName()
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{ |
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return Tapestry.RESTART_SERVICE;
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} |
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/** @since 3.1 */
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public void setLog(Log log) |
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{ |
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_log = log; |
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} |
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/** @since 3.1 */
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public void setRequest(HttpServletRequest request) |
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{ |
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_request = request; |
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} |
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/** @since 3.1 */
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public void setBuilder(AbsoluteURLBuilder builder) |
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{ |
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_builder = builder; |
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} |
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/** @since 3.1 */
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public void setResponse(HttpServletResponse response) |
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{ |
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_response = response; |
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} |
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/** @since 3.1 */
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public void setLinkFactory(LinkFactory linkFactory) |
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{ |
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_linkFactory = linkFactory; |
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} |
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/** @since 3.1 */
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public void setServletPath(String servletPath) |
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{ |
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_servletPath = servletPath; |
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} |
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} |
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