    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    }