001 //$HeadURL: https://svn.wald.intevation.org/svn/deegree/base/branches/2.3_testing/src/org/deegree/tools/srs/SRSInfo.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.tools.srs;
037
038 import java.io.BufferedReader;
039 import java.io.BufferedWriter;
040 import java.io.File;
041 import java.io.FileWriter;
042 import java.io.IOException;
043 import java.io.InputStreamReader;
044 import java.util.ArrayList;
045 import java.util.Collections;
046 import java.util.HashMap;
047 import java.util.List;
048
049 import org.deegree.crs.configuration.CRSConfiguration;
050 import org.deegree.crs.configuration.CRSProvider;
051 import org.deegree.crs.coordinatesystems.CoordinateSystem;
052
053 /**
054 * A utility program to inform the callee about the availability (-isAvailable param) of a certain crs or to retrieve
055 * all available crs's from the deegree crs configuration.
056 *
057 * @author <a href="mailto:poth@lat-lon.de">Andreas Poth</a>
058 * @author last edited by: $Author: mschneider $
059 *
060 * @version $Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Do, 18. Jun 2009) $
061 */
062 public class SRSInfo {
063 private final CRSProvider provider;
064
065 /**
066 * constructor creating a crs 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( boolean verify, File exportFile ) {
090
091 List<String> allCRSs = new ArrayList<String>();
092 if ( verify ) {
093 List<CoordinateSystem> avCRS = provider.getAvailableCRSs();
094 if ( avCRS != null && avCRS.size() > 0 ) {
095 for ( CoordinateSystem crs : avCRS ) {
096 String[] ids = crs.getIdentifiers();
097 if ( ids != null ) {
098 StringBuilder sb = new StringBuilder( 300 );
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 allCRSs.add( sb.toString() );
106 }
107 }
108 }
109 if ( exportFile != null ) {
110 StringBuilder out = new StringBuilder( 20000000 );
111 provider.export( out, avCRS );
112 try {
113 BufferedWriter bw = new BufferedWriter( new FileWriter( exportFile ) );
114 bw.write( out.toString() );
115 bw.flush();
116 bw.close();
117 } catch ( IOException e ) {
118 System.out.println( e );
119 }
120 }
121 } else {
122 allCRSs = provider.getAvailableCRSIds();
123 }
124 Collections.sort( allCRSs );
125 return allCRSs;
126 }
127
128 /**
129 * @param args
130 * following parameters are supported:
131 * <ul>
132 * <li>[-isAvailable srsName]</li>
133 * <li>[-file outputfile]</li>
134 * <li>[-verify]</li>
135 * </ul>
136 */
137 public static void main( String[] args ) {
138
139 SRSInfo srsinfo = new SRSInfo();
140
141 HashMap<String, String> params = new HashMap<String, String>();
142 boolean verify = false;
143 for ( int i = 0; i < args.length; i++ ) {
144 String firstArgument = args[i];
145 if ( firstArgument != null && !"".equals( firstArgument.trim() ) ) {
146 firstArgument = firstArgument.trim();
147 if ( firstArgument.equalsIgnoreCase( "-?" ) || firstArgument.equalsIgnoreCase( "-h" ) ) {
148 outputHelp();
149 } else {
150 if ( "-verify".equalsIgnoreCase( firstArgument ) ) {
151 verify = true;
152 } else {
153 if ( i + 1 < args.length ) {
154 String val = args[++i];
155 if ( val != null && !"".equals( val.trim() ) ) {
156 params.put( firstArgument, val.trim() );
157 } else {
158 System.out.println( "Invalid value for parameter: " + firstArgument );
159 }
160 } else {
161 System.out.println( "No value for parameter: " + firstArgument );
162 }
163 }
164 }
165 }
166 }
167 String availableCRS = params.get( "-isAvailable" );
168 if ( availableCRS != null && !"".equals( availableCRS.trim() ) ) {
169 System.out.println( "Coordinates System: " + availableCRS + " is "
170 + ( ( srsinfo.isAvailable( availableCRS.trim() ) ) ? "" : "not " )
171 + "available in deegree" );
172 } else {
173 File exportFile = null;//new File( "/dev/shm/crs-configuration.xml" );
174 List<String> availableCRSs = srsinfo.getAll( verify, exportFile );
175 if ( availableCRSs != null && availableCRSs.size() > 0 ) {
176 String file = params.get( "-file" );
177 if ( file != null && !"".equals( file.trim() ) ) {
178 File f = new File( file );
179 boolean overwrite = true;
180 if( f.exists() ){
181 System.out.print( "The file: "+ file + " already exsists, overwrite ([y]/n): " );
182 BufferedReader read = new BufferedReader( new InputStreamReader( System.in ) );
183 String s = "n";
184 try {
185 s = read.readLine();
186 } catch ( IOException e ) {
187 //nottin.
188 }
189 if( s != null && !"".equals( s.trim() ) && !"y".equalsIgnoreCase( s.trim() ) ){
190 overwrite = false;
191 }
192
193
194 }
195 if ( overwrite ) {
196 System.out.println( "Writing to file: " + f.getAbsoluteFile() );
197 try {
198 FileWriter fw = new FileWriter( f );
199
200 int count = 1;
201 for ( String crs : availableCRSs ) {
202 fw.write( ( count++ ) + ")" + crs + "\n");
203 //fw.write( crs );
204 }
205 fw.close();
206 } catch ( IOException e ) {
207 System.out.println( "An exception occurred while trying to write to file: "
208 + f.getAbsoluteFile() + "\n message:\n" + e.getMessage() );
209 e.printStackTrace();
210 }
211
212 System.exit( 1 );
213 } else {
214 System.out.println( "Not overwriting file: " + f.getAbsoluteFile()
215 + ", outputting to standard out." );
216 }
217 } else {
218 System.out.println( "No File given (-file param) writing to standard out." );
219 }
220 int count = 1;
221 for ( String crs : availableCRSs ) {
222 System.out.println( ( count++ ) + ")" + crs );
223 }
224 } else {
225 System.out.println( "No Coordinate Systems configured, this is very strange!" );
226 }
227 }
228 }
229
230 private static void outputHelp() {
231 StringBuilder sb = new StringBuilder();
232 sb.append( "The SRSInfo program can be used to output all available crs's configured in deegree and\n" );
233 sb.append( "will give you an affirmation on an available crs.\n\n" );
234 sb.append( "Following parameters are supported:\n" );
235 sb.append( "[-isAvailable] crs_id -- will give you an affirmation if the given crs is available.\n" );
236 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" );
237 sb.append( "[-verify] if [-isAvailable] is not given, the -verify flag can be used to verify if the provider can create all configured crs_s, thus verifying if the configuration is correct.\n" );
238 sb.append( "-?|-h output this text\n" );
239 System.out.println( sb.toString() );
240 System.exit( 1 );
241 }
242 }