Source Code Cross Referenced for FallbackAuthorityFactoryTest.java in  » GIS » GeoTools-2.4.1 » org » geotools » referencing » factory » epsg » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.referencing.factory.epsg 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2007, GeoTools Project Managment Committee (PMC)
005:         *
006:         *    This library is free software; you can redistribute it and/or
007:         *    modify it under the terms of the GNU Lesser General Public
008:         *    License as published by the Free Software Foundation;
009:         *    version 2.1 of the License.
010:         *
011:         *    This library is distributed in the hope that it will be useful,
012:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         *    Lesser General Public License for more details.
015:         */
016:        package org.geotools.referencing.factory.epsg;
017:
018:        // Java dependencies
019:        import java.net.URL;
020:        import java.util.Iterator;
021:        import java.util.Set;
022:
023:        import junit.framework.Test;
024:        import junit.framework.TestCase;
025:        import junit.framework.TestSuite;
026:
027:        import org.geotools.referencing.CRS;
028:        import org.geotools.referencing.ReferencingFactoryFinder;
029:        import org.opengis.referencing.FactoryException;
030:        import org.opengis.referencing.NoSuchAuthorityCodeException;
031:        import org.opengis.referencing.crs.CRSAuthorityFactory;
032:        import org.opengis.referencing.crs.CoordinateReferenceSystem;
033:        import org.opengis.referencing.crs.ProjectedCRS;
034:
035:        /**
036:         * Checks the exception thrown by the fallback system do report actual errors when the code is
037:         * available but for some reason broken, and not "code not found" ones.
038:         *
039:         * @source $URL: http://svn.geotools.org/geotools/tags/2.4.1/modules/library/referencing/src/test/java/org/geotools/referencing/factory/epsg/FallbackAuthorityFactoryTest.java $
040:         * @version $Id: FallbackAuthorityFactoryTest.java 29124 2008-02-07 08:22:48Z aaime $
041:         * @author Andrea Aime (TOPP)
042:         */
043:        public class FallbackAuthorityFactoryTest extends TestCase {
044:            /**
045:             * Set to {@code true} for printing debugging information.
046:             */
047:            private static final boolean VERBOSE = false;
048:
049:            /**
050:             * The extra factory.
051:             */
052:            private FactoryEPSGExtra extra;
053:
054:            /**
055:             * Returns the test suite.
056:             */
057:            public static Test suite() {
058:                return new TestSuite(FallbackAuthorityFactoryTest.class);
059:            }
060:
061:            /**
062:             * Run the test from the command line.
063:             *
064:             * @param args the command line arguments.
065:             */
066:            public static void main(final String[] args) {
067:                org.geotools.util.logging.Logging.GEOTOOLS
068:                        .forceMonolineConsoleOutput();
069:                junit.textui.TestRunner.run(suite());
070:            }
071:
072:            /**
073:             * Creates a test case with the specified name.
074:             */
075:            public FallbackAuthorityFactoryTest(final String name) {
076:                super (name);
077:            }
078:
079:            /**
080:             * Adds the extra factory to the set of authority factories.
081:             */
082:            public void setUp() {
083:                assertNull(extra);
084:                extra = new FactoryEPSGExtra();
085:                ReferencingFactoryFinder.addAuthorityFactory(extra);
086:                ReferencingFactoryFinder.scanForPlugins();
087:            }
088:
089:            /**
090:             * Removes the extra factory from the set of authority factories.
091:             */
092:            public void tearDown() {
093:                if (org.geotools.test.TestData.isBaseJavaPlatform()) {
094:                    // Disabled in J2SE 1.4 build because of a bug.
095:                    // TODO: Remove when we will be target J2SE 1.4 or 1.5.
096:                    return;
097:                }
098:                assertNotNull(extra);
099:                ReferencingFactoryFinder.removeAuthorityFactory(extra);
100:                extra = null;
101:            }
102:
103:            /**
104:             * Makes sure that the testing {@link FactoryEPSGExtra} has precedence over
105:             * {@link FactoryUsingWKT}.
106:             */
107:            public void testFactoryOrdering() {
108:                if (org.geotools.test.TestData.isBaseJavaPlatform()) {
109:                    // Disabled in J2SE 1.4 build because of a bug.
110:                    // TODO: Remove when we will be target J2SE 1.4 or 1.5.
111:                    return;
112:                }
113:                Set factories = ReferencingFactoryFinder
114:                        .getCRSAuthorityFactories(null);
115:                boolean foundWkt = false;
116:                boolean foundExtra = false;
117:                for (Iterator it = factories.iterator(); it.hasNext();) {
118:                    CRSAuthorityFactory factory = (CRSAuthorityFactory) it
119:                            .next();
120:                    Class type = factory.getClass();
121:                    if (VERBOSE) {
122:                        System.out.println(type);
123:                    }
124:                    if (type == FactoryEPSGExtra.class) {
125:                        foundExtra = true;
126:                    } else if (type == FactoryUsingWKT.class) {
127:                        foundWkt = true;
128:                        assertTrue(
129:                                "We should have encountered WKT factory after the extra one",
130:                                foundExtra);
131:                    }
132:                }
133:                assertTrue(foundWkt);
134:                assertTrue(foundExtra);
135:            }
136:
137:            /**
138:             * Tests the {@code 42101} code. The purpose of this test is mostly
139:             * to make sure that {@link FactoryUsingWKT} is in the chain.
140:             */
141:            public void test42101() throws FactoryException {
142:                assertTrue(CRS.decode("EPSG:42101") instanceof  ProjectedCRS);
143:            }
144:
145:            /**
146:             * Tests the {@code 00001} fake code.
147:             */
148:            public void test00001() throws FactoryException {
149:                if (org.geotools.test.TestData.isBaseJavaPlatform()) {
150:                    // Disabled in J2SE 1.4 build because of a bug.
151:                    // TODO: Remove when we will be target J2SE 1.4 or 1.5.
152:                    return;
153:                }
154:                try {
155:                    CRS.decode("EPSG:00001");
156:                    fail("This code should not be there");
157:                } catch (NoSuchAuthorityCodeException e) {
158:                    fail("The code 00001 is there, exception should report it's broken");
159:                } catch (FactoryException e) {
160:                    // cool, that's what we expected
161:                }
162:            }
163:
164:            /**
165:             * GEOT-1702, make sure looking up for an existing code does not result in a
166:             * StackOverflowException
167:             * @throws FactoryException
168:             */
169:            public void testLookupSuccessfull() throws FactoryException {
170:                CoordinateReferenceSystem crs = CRS.decode("EPSG:42101");
171:                String code = CRS.lookupIdentifier(crs, true);
172:                assertEquals("EPSG:42101", code);
173:            }
174:
175:            /**
176:             * GEOT-1702, make sure looking up for a non existing code does not result in a
177:             * StackOverflowException
178:             * @throws FactoryException
179:             */
180:            public void testLookupFailing() throws FactoryException {
181:                String wkt = "PROJCS[\"Google Mercator\", \r\n"
182:                        + "  GEOGCS[\"WGS 84\", \r\n"
183:                        + "    DATUM[\"World Geodetic System 1984\", \r\n"
184:                        + "      SPHEROID[\"WGS 84\", 6378137.0, 298.257223563, AUTHORITY[\"EPSG\",\"7030\"]], \r\n"
185:                        + "      AUTHORITY[\"EPSG\",\"6326\"]], \r\n"
186:                        + "    PRIMEM[\"Greenwich\", 0.0, AUTHORITY[\"EPSG\",\"8901\"]], \r\n"
187:                        + "    UNIT[\"degree\", 0.017453292519943295], \r\n"
188:                        + "    AXIS[\"Geodetic latitude\", NORTH], \r\n"
189:                        + "    AXIS[\"Geodetic longitude\", EAST], \r\n"
190:                        + "    AUTHORITY[\"EPSG\",\"4326\"]], \r\n"
191:                        + "  PROJECTION[\"Mercator_1SP\"], \r\n"
192:                        + "  PARAMETER[\"latitude_of_origin\", 0.0], \r\n"
193:                        + "  PARAMETER[\"central_meridian\", 0.0], \r\n"
194:                        + "  PARAMETER[\"scale_factor\", 1.0], \r\n"
195:                        + "  PARAMETER[\"false_easting\", 0.0], \r\n"
196:                        + "  PARAMETER[\"false_northing\", 0.0], \r\n"
197:                        + "  UNIT[\"m\", 1.0], \r\n"
198:                        + "  AXIS[\"Easting\", EAST], \r\n"
199:                        + "  AXIS[\"Northing\", NORTH], \r\n"
200:                        + "  AUTHORITY[\"EPSG\",\"900913\"]]";
201:                CoordinateReferenceSystem crs = CRS.parseWKT(wkt);
202:                assertNull(CRS.lookupIdentifier(crs, true));
203:            }
204:
205:            /**
206:             * Extra class used to make sure we have {@link FactoryUsingWKT} among the fallbacks
207:             * (used to check the fallback mechanism).
208:             *
209:             * @author Andrea Aime (TOPP)
210:             */
211:            private static class FactoryEPSGExtra extends FactoryUsingWKT {
212:                /**
213:                 * Creates a factory to be registered before {@link FactoryUsingWKT} in the fallback chain.
214:                 */
215:                public FactoryEPSGExtra() {
216:                    // make sure we are before FactoryUsingWKT in the fallback chain
217:                    super (null, DEFAULT_PRIORITY + 5);
218:                }
219:
220:                /**
221:                 * Returns the URL to the test file that contains a broken CRS for code EPSG:1.
222:                 */
223:                protected URL getDefinitionsURL() {
224:                    return FactoryUsingWKT.class
225:                            .getResource("epsg2.properties");
226:                }
227:            }
228:        }
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