001 //$HeadURL: svn+ssh://rbezema@svn.wald.intevation.org/deegree/base/branches/2.2_testing/src/org/deegree/tools/srs/SRSInfo.java $
002 /*---------------- FILE HEADER ------------------------------------------
003
004 This file is part of deegree.
005 Copyright (C) 2001-2008 by:
006 EXSE, Department of Geography, University of Bonn
007 http://www.giub.uni-bonn.de/deegree/
008 lat/lon GmbH
009 http://www.lat-lon.de
010
011 This library is free software; you can redistribute it and/or
012 modify it under the terms of the GNU Lesser General Public
013 License as published by the Free Software Foundation; either
014 version 2.1 of the License, or (at your option) any later version.
015
016 This library is distributed in the hope that it will be useful,
017 but WITHOUT ANY WARRANTY; without even the implied warranty of
018 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
019 Lesser General Public License for more details.
020
021 You should have received a copy of the GNU Lesser General Public
022 License along with this library; if not, write to the Free Software
023 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
024
025 Contact:
026
027 Andreas Poth
028 lat/lon GmbH
029 Aennchenstr. 19
030 53177 Bonn
031 Germany
032 E-Mail: poth@lat-lon.de
033
034 Prof. Dr. Klaus Greve
035 Department of Geography
036 University of Bonn
037 Meckenheimer Allee 166
038 53115 Bonn
039 Germany
040 E-Mail: greve@giub.uni-bonn.de
041
042 ---------------------------------------------------------------------------*/
043 package org.deegree.tools.srs;
044
045 import java.io.File;
046 import java.io.FileWriter;
047 import java.io.IOException;
048 import java.util.ArrayList;
049 import java.util.HashMap;
050 import java.util.List;
051
052 import org.deegree.crs.configuration.CRSConfiguration;
053 import org.deegree.crs.configuration.CRSProvider;
054 import org.deegree.crs.coordinatesystems.CoordinateSystem;
055
056 /**
057 * A utility program to inform the callee about the availability (-isAvailable param) of a certain crs or to retrieve
058 * all available crs's from the deegree crs configuration.
059 *
060 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
061 * @author last edited by: $Author: rbezema $
062 *
063 * @version $Revision: 9648 $, $Date: 2008-01-21 13:21:52 +0100 (Mo, 21 Jan 2008) $
064 */
065 public class SRSInfo {
066 private final CRSProvider provider;
067
068 SRSInfo() {
069 CRSConfiguration config = CRSConfiguration.getCRSConfiguration();
070 provider = config.getProvider();
071 if ( provider == null ) {
072 System.out.println( "Could not retrieve a deegree crs-provider instance, this may not be, please make sure your deegree installation uses a correct crs-configuration. Exiting!" );
073 }
074 }
075
076 /**
077 * returns true if the the passed SRS is available in deegree
078 *
079 * @param srs
080 * @return <code>true</code> if the the passed SRS is available in deegree
081 */
082 private boolean isAvailable( String srs ) {
083 return provider.getCRSByID( srs ) != null;
084 }
085
086 /**
087 * @return a list of crs's with following layout 1) crsid[0], crsid[1] ... etc.
088 */
089 private List<String> getAll() {
090 List<CoordinateSystem> avCRS = provider.getAvailableCRSs();
091 List<String> allCRSs = new ArrayList<String>();
092 if ( avCRS != null && avCRS.size() > 0 ) {
093 int count = 1;
094 for ( CoordinateSystem crs : avCRS ) {
095 String[] ids = crs.getIdentifiers();
096 if ( ids != null ) {
097 StringBuilder sb = new StringBuilder( 300 );
098 sb.append( ( count++ ) + ") " );
099 for ( int i = 0; i < ids.length; ++i ) {
100 sb.append( ids[i] );
101 if ( i + 1 < ids.length ) {
102 sb.append( ", " );
103 }
104 }
105 sb.append( "\n" );
106 allCRSs.add( sb.toString() );
107 }
108 }
109 }
110 return allCRSs;
111 }
112
113 /**
114 * @param args
115 * following parameters are supported:
116 * <ul>
117 * <li>[-isAvailable srsName]</li>
118 * <li>[-file outputfile]</li>
119 * </ul>
120 */
121 public static void main( String[] args ) {
122
123 SRSInfo srsinfo = new SRSInfo();
124
125 HashMap<String, String> params = new HashMap<String, String>();
126 for ( int i = 0; i < args.length; i++ ) {
127 String arg = args[i];
128 if ( args != null && !"".equals( arg.trim() ) ) {
129 arg = arg.trim();
130 if ( arg.equalsIgnoreCase( "-?" ) || arg.equalsIgnoreCase( "-h" ) ) {
131 outputHelp();
132 } else {
133 if ( i + 1 < args.length ) {
134 String val = args[++i];
135 if ( val != null && !"".equals( val.trim() ) ) {
136 params.put( arg, val.trim() );
137 } else {
138 System.out.println( "Invalid value for parameter: " + arg );
139 }
140 } else {
141 System.out.println( "No value for parameter: " + arg );
142 }
143 }
144 }
145 }
146 String availableCRS = params.get( "-isAvailable" );
147 if ( availableCRS != null && !"".equals( availableCRS.trim() ) ) {
148 System.out.println( "Coordinates System: " + availableCRS
149 + " is "
150 + ( ( srsinfo.isAvailable( availableCRS.trim() ) ) ? "" : "not " )
151 + "available in deegree" );
152 } else {
153 List<String> availableCRSs = srsinfo.getAll();
154 if ( availableCRSs != null && availableCRSs.size() > 0 ) {
155 String file = params.get( "-file" );
156 if ( file != null && !"".equals( file.trim() ) ) {
157 File f = new File( file );
158 if ( !f.exists() && f.canWrite() ) {
159 System.out.println( "Writing to file: " + f.getAbsoluteFile() );
160 try {
161 FileWriter fw = new FileWriter( f );
162
163 for ( String crs : availableCRSs ) {
164 fw.write( crs );
165 }
166 fw.close();
167 } catch ( IOException e ) {
168 System.out.println( "An exception occurred while trying to write to file: " + f.getAbsoluteFile()
169 + "\n message:\n"
170 + e.getMessage() );
171 e.printStackTrace();
172 }
173
174 System.exit( 1 );
175 } else {
176 System.out.println( "The given file: " + f.getAbsoluteFile()
177 + " could not be written to, outputting to standard out." );
178 }
179 } else {
180 System.out.println( "No File given (-file param) writing to standard out." );
181 }
182 for ( String crs : availableCRSs ) {
183 System.out.println( crs );
184 }
185 } else {
186 System.out.println( "No Coordinate Systems configured, this is very strange!" );
187 }
188 }
189 }
190
191 private static void outputHelp() {
192 StringBuilder sb = new StringBuilder();
193 sb.append( "The SRSInfo program can be used to output all available crs's configured in deegree and\n" );
194 sb.append( "will give you an affirmation on an available crs.\n\n" );
195 sb.append( "Following parameters are supported:\n" );
196 sb.append( "[-isAvailable] crs_id -- will give you an affirmation if the given crs is available.\n" );
197 sb.append( "[-file] if [-isAvailable] is not given, the -file parameter can be used to write all configured crs_s to, if not given standard out will be used.\n" );
198 sb.append( "-?|-h output this text\n" );
199 System.out.println( sb.toString() );
200 System.exit( 1 );
201 }
202 }