001    //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/framework/util/MimeTypeMapper.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    package org.deegree.framework.util;
037    
038    /**
039     * Helper class to check for supported mime types.
040     *
041     * @author <a href="mailto:schaefer@lat-lon.de">Axel Schaefer</a>
042     * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
043     * @author last edited by: $Author: mschneider $
044     *
045     * @version $Revision: 18195 $
046     */
047    public class MimeTypeMapper {
048    
049        /**
050         * Returns true if the submitted content type is defined by the OGC.
051         *
052         * @param contentType
053         *            mime type to check
054         * @return true if the contentType starts with "application/vnd.ogc", false otherwise
055         */
056        public static boolean isOGCType( String contentType ) {
057            return contentType.startsWith( "application/vnd.ogc" );
058        }
059    
060        /**
061         * Returns true if the submitted content type is an image type.
062         *
063         * @param contentType
064         *            mime type to check
065         * @return true if the contenttype starts with 'image', false otherwise
066         */
067        public static boolean isImageType( String contentType ) {
068            return contentType.startsWith( "image" );
069        }
070    
071        /**
072         * Returns true if the submitted image content type is known by deegree.
073         *
074         * @param contentType
075         *            mime type to check
076         * @return true if the content type denotes an image mime-type known by deegree, false otherwise
077         */
078        public static boolean isKnownImageType( String contentType ) {
079            return contentType.equalsIgnoreCase( "image/jpeg" ) || contentType.equalsIgnoreCase( "image/jpg" )
080                   || contentType.equalsIgnoreCase( "image/gif" ) || contentType.equalsIgnoreCase( "image/tif" )
081                   || contentType.equalsIgnoreCase( "image/tiff" ) || contentType.equalsIgnoreCase( "image/bmp" )
082                   || contentType.equalsIgnoreCase( "image/svg+xml" ) || contentType.equalsIgnoreCase( "image/png" )
083                   || contentType.equalsIgnoreCase( "image/png; mode=8bit" )
084                   || contentType.equalsIgnoreCase( "image/png; mode=24bit" );
085        }
086    
087        /**
088         * Returns true if the submitted content type is known by the deegree OWS implementations.
089         *
090         * @param contentType
091         *            mime type to check
092         * @return true if the mime type is known by deegree, false otherwise
093         */
094        public static boolean isKnownMimeType( String contentType ) {
095            int paramIndex = contentType.indexOf( ";" );
096            if ( paramIndex != -1 ) {
097                contentType = contentType.substring( 0, paramIndex );
098            }
099            return contentType.equalsIgnoreCase( "image/jpeg" ) || contentType.equalsIgnoreCase( "image/jpg" )
100                   || contentType.equalsIgnoreCase( "image/gif" ) || contentType.equalsIgnoreCase( "image/tif" )
101                   || contentType.equalsIgnoreCase( "image/tiff" ) || contentType.equalsIgnoreCase( "image/png" )
102                   || contentType.equalsIgnoreCase( "text/html" ) || contentType.equalsIgnoreCase( "text/text" )
103                   || contentType.equalsIgnoreCase( "text/plain" ) || contentType.equalsIgnoreCase( "text/xml" )
104                   || contentType.equalsIgnoreCase( "image/bmp" ) || contentType.equalsIgnoreCase( "application/xml" )
105                   || contentType.equalsIgnoreCase( "application/vnd.ogc.se_xml" )
106                   || contentType.equalsIgnoreCase( "application/vnd.ogc.se_inimage" )
107                   || contentType.equalsIgnoreCase( "application/vnd.ogc.se_blank" )
108                   || contentType.equalsIgnoreCase( "application/vnd.ogc.wms_xml" )
109                   || contentType.equalsIgnoreCase( "application/vnd.ogc.gml" )
110                   || contentType.equalsIgnoreCase( "application/vnd.gdinrw.session_xml" )
111                   || contentType.equalsIgnoreCase( "application/vnd.gdinrw.secure_xml" )
112                   || contentType.equalsIgnoreCase( "image/svg+xml" );
113        }
114    
115        /**
116         *
117         * @param contentType
118         *
119         * @return true if the submitted content type is a mime type defined by a OGC specification
120         */
121        public static boolean isKnownOGCType( String contentType ) {
122            return contentType.equalsIgnoreCase( "application/xml" )
123                   || contentType.equalsIgnoreCase( "application/vnd.ogc.se_xml" )
124                   || contentType.equalsIgnoreCase( "application/vnd.ogc.se_inimage" )
125                   || contentType.equalsIgnoreCase( "application/vnd.ogc.se_blank" )
126                   || contentType.equalsIgnoreCase( "application/vnd.ogc.wms_xml" )
127                   || contentType.equalsIgnoreCase( "application/vnd.gdinrw.session_xml" )
128                   || contentType.equalsIgnoreCase( "application/vnd.gdinrw.secure_xml" )
129                   || contentType.equalsIgnoreCase( "application/vnd.ogc.gml" );
130        }
131    
132        /**
133         * maps a 'simple' format name like gif, jpg or text to the corresponding mime type --> e.g. image/gif, image/jpeg
134         * or text/plain
135         *
136         * @param contentType
137         *
138         * @return the mapped content type.
139         */
140        public static String toMimeType( String contentType ) {
141    
142            String mimetype = "";
143    
144            if ( isKnownMimeType( contentType ) ) {
145                mimetype = contentType;
146            } else {
147                if ( contentType.equalsIgnoreCase( "jpeg" ) ) {
148                    mimetype = "image/jpeg";
149                } else if ( contentType.equalsIgnoreCase( "jpg" ) ) {
150                    mimetype = "image/jpeg";
151                } else if ( contentType.equalsIgnoreCase( "gif" ) ) {
152                    mimetype = "image/gif";
153                } else if ( contentType.equalsIgnoreCase( "png" ) ) {
154                    mimetype = "image/png";
155                } else if ( contentType.equalsIgnoreCase( "bmp" ) ) {
156                    mimetype = "image/bmp";
157                } else if ( contentType.equalsIgnoreCase( "tif" ) ) {
158                    mimetype = "image/tiff";
159                } else if ( contentType.equalsIgnoreCase( "tiff" ) ) {
160                    mimetype = "image/tiff";
161                } else if ( contentType.equalsIgnoreCase( "svg" ) ) {
162                    mimetype = "image/svg+xml";
163                } else if ( contentType.equalsIgnoreCase( "xml" ) ) {
164                    mimetype = "text/xml";
165                } else if ( contentType.equalsIgnoreCase( "gml" ) ) {
166                    mimetype = "text/gml";
167                } else if ( contentType.equalsIgnoreCase( "text" ) ) {
168                    mimetype = "text/plain";
169                } else if ( contentType.equalsIgnoreCase( "inimage" ) ) {
170                    mimetype = "application/vnd.ogc.se_inimage";
171                } else if ( contentType.equalsIgnoreCase( "blank" ) ) {
172                    mimetype = "application/vnd.ogc.se_blank";
173                } else if ( contentType.equalsIgnoreCase( "gml" ) ) {
174                    mimetype = "application/vnd.ogc.gml";
175                } else {
176                    // unknown mimetype
177                    mimetype = "unknown/unknown";
178                }
179            }
180            return mimetype;
181        }
182    }