001 //$HeadURL$
002 /*----------------------------------------------------------------------------
003 This file is part of deegree, http://deegree.org/
004 Copyright (C) 2001-2009 by:
005 Department of Geography, University of Bonn
006 and
007 lat/lon GmbH
008
009 This library is free software; you can redistribute it and/or modify it under
010 the terms of the GNU Lesser General Public License as published by the Free
011 Software Foundation; either version 2.1 of the License, or (at your option)
012 any later version.
013 This library is distributed in the hope that it will be useful, but WITHOUT
014 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
015 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
016 details.
017 You should have received a copy of the GNU Lesser General Public License
018 along with this library; if not, write to the Free Software Foundation, Inc.,
019 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
020
021 Contact information:
022
023 lat/lon GmbH
024 Aennchenstr. 19, 53177 Bonn
025 Germany
026 http://lat-lon.de/
027
028 Department of Geography, University of Bonn
029 Prof. Dr. Klaus Greve
030 Postfach 1147, 53001 Bonn
031 Germany
032 http://www.geographie.uni-bonn.de/deegree/
033
034 e-mail: info@deegree.org
035 ----------------------------------------------------------------------------*/
036
037 package org.deegree.portal.owswatch;
038
039 import java.io.Serializable;
040 import java.util.Calendar;
041
042 import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
043 import org.apache.commons.httpclient.HttpClient;
044 import org.apache.commons.httpclient.HttpMethodBase;
045 import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
046 import org.apache.commons.httpclient.params.HttpMethodParams;
047 import org.deegree.ogcwebservices.OGCWebServiceException;
048
049 /**
050 * Executes the tests on a certain service. It also calls the validator and logs the result in the protocol file This
051 * class extends Thread. On call of start() will execute the functionality of the class as described above
052 *
053 * @author <a href="mailto:elmasry@lat-lon.de">Moataz Elmasry</a>
054 * @author last edited by: $Author: elmasry $
055 *
056 * @version $Revision: 1.2 $, $Date: 2008-03-20 16:33:27 $
057 */
058 public class ServiceInvoker extends Thread implements Serializable {
059
060 /**
061 *
062 */
063 private static final long serialVersionUID = 8445955567617597483L;
064
065 private ServiceConfiguration serviceConfig = null;
066
067 private ServiceLog serviceLog = null;
068
069 /**
070 * @param serviceconfig
071 * @param serviceLog
072 */
073 public ServiceInvoker( ServiceConfiguration serviceconfig, ServiceLog serviceLog ) {
074 this.serviceConfig = serviceconfig;
075 this.serviceLog = serviceLog;
076 }
077
078 /**
079 * Executes the test in a separate thread
080 *
081 */
082 public void executeTestThreaded() {
083 start();
084 }
085
086 /*
087 * (non-Javadoc)
088 *
089 * @see java.lang.Thread#run()
090 */
091 @Override
092 public void run() {
093 executeTest();
094 }
095
096 /**
097 * Executes the test in the main thread
098 *
099 */
100 public void executeTest() {
101
102 ValidatorResponse tmpResponse = null;
103 try {
104 HttpMethodBase method = serviceConfig.getHttpMethodBase();
105 tmpResponse = executeHttpMethod( method );
106 method.releaseConnection();
107 } catch ( OGCWebServiceException e ) {
108 tmpResponse = new ValidatorResponse( "Page Unavailable: " + e.getLocalizedMessage(),
109 Status.RESULT_STATE_PAGE_UNAVAILABLE );
110 tmpResponse.setLastLapse( -1 );
111 tmpResponse.setLastTest( Calendar.getInstance().getTime() );
112 }
113
114 serviceLog.addMessage( tmpResponse, serviceConfig );
115 }
116
117 /**
118 * @param method
119 * @return The response OGCWebServiceResponseData
120 * @throws OGCWebServiceException
121 */
122 protected ValidatorResponse executeHttpMethod( HttpMethodBase method )
123 throws OGCWebServiceException {
124
125 HttpClient client = new HttpClient();
126 HttpConnectionManagerParams cmParams = client.getHttpConnectionManager().getParams();
127 cmParams.setConnectionTimeout( serviceConfig.getTimeout() * 1000 );
128 client.getHttpConnectionManager().setParams( cmParams );
129 // Provide custom retry handler is necessary
130 method.getParams().setParameter( HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler( 2, false ) );
131 ValidatorResponse response = null;
132 try {
133 long startTime = System.currentTimeMillis();
134 int statusCode = client.executeMethod( method );
135 long lapse = System.currentTimeMillis() - startTime;
136 response = serviceConfig.getValidator().validateAnswer( method, statusCode );
137
138 response.setLastLapse( lapse );
139 Calendar date = Calendar.getInstance();
140 date.setTimeInMillis( startTime );
141 response.setLastTest( date.getTime() );
142 } catch ( Exception e ) {
143 throw new OGCWebServiceException( e.getLocalizedMessage() );
144 } finally {
145 method.releaseConnection();
146 }
147 return response;
148 }
149
150 /**
151 * @return ServiceConfiguration
152 */
153 public ServiceConfiguration getServiceConfig() {
154 return serviceConfig;
155 }
156
157 /**
158 * @return ServiceLog
159 */
160 public ServiceLog getServiceLog() {
161 return serviceLog;
162 }
163 }