001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/portal/owswatch/validator/WMSGetMapValidator.java $
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.validator;
038
039 import java.io.InputStream;
040 import java.io.Serializable;
041
042 import javax.imageio.ImageIO;
043
044 import org.apache.commons.httpclient.HttpMethodBase;
045 import org.deegree.framework.util.StringTools;
046
047 import org.deegree.portal.owswatch.Status;
048 import org.deegree.portal.owswatch.ValidatorResponse;
049
050 /**
051 * A specific implementation of AbstractValidator
052 *
053 * @author <a href="mailto:elmasry@lat-lon.de">Moataz Elmasry</a>
054 * @author last edited by: $Author: jmays $
055 *
056 * @version $Revision: 20271 $, $Date: 2009-10-21 13:07:15 +0200 (Mi, 21. Okt 2009) $
057 */
058 public class WMSGetMapValidator extends AbstractValidator implements Serializable {
059
060 /**
061 *
062 */
063 private static final long serialVersionUID = -5983538240882784183L;
064
065 /*
066 * (non-Javadoc)
067 *
068 * @see org.deegree.portal.owswatch.validator.AbstractValidator#validateAnswer(org.apache.commons.httpclient.HttpMethodBase,
069 * int)
070 */
071 @Override
072 public ValidatorResponse validateAnswer( HttpMethodBase method, int statusCode ) {
073
074 String contentType = method.getResponseHeader( "Content-Type" ).getValue();
075 String lastMessage = null;
076 Status status = null;
077
078 if ( !contentType.contains( "image" ) ) {
079 if ( !contentType.contains( "xml" ) ) {
080 status = Status.RESULT_STATE_UNEXPECTED_CONTENT;
081 lastMessage = StringTools.concat( 100, "Error: Response Content is ", contentType, " not image" );
082 return new ValidatorResponse( lastMessage, status );
083 } else {
084 return validateXmlServiceException( method );
085 }
086 }
087
088 try {
089 InputStream stream = copyStream( method.getResponseBodyAsStream() );
090 stream.reset();
091 ImageIO.read( stream );
092 status = Status.RESULT_STATE_AVAILABLE;
093 lastMessage = status.getStatusMessage();
094 return new ValidatorResponse( lastMessage, status );
095 } catch ( Exception e ) {
096 status = Status.RESULT_STATE_SERVICE_UNAVAILABLE;
097 lastMessage = e.getLocalizedMessage();
098 return new ValidatorResponse( lastMessage, status );
099 }
100 }
101 }