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From desruisse...@apache.org
Subject [sis] branch geoapi-4.0 updated: Investigate why some CRS are considered not equal when they should be. For now we just documented the finding in the following JIRA task; no fix has been attempted yet: - https://issues.apache.org/jira/browse/SIS-433 - https://issues.apache.org/jira/browse/SIS-434
Date Wed, 17 Oct 2018 11:16:50 GMT
This is an automated email from the ASF dual-hosted git repository.

desruisseaux pushed a commit to branch geoapi-4.0
in repository https://gitbox.apache.org/repos/asf/sis.git


The following commit(s) were added to refs/heads/geoapi-4.0 by this push:
     new 91332ab  Investigate why some CRS are considered not equal when they should be. For
now we just documented the finding in the following JIRA task; no fix has been attempted yet:
- https://issues.apache.org/jira/browse/SIS-433 - https://issues.apache.org/jira/browse/SIS-434
91332ab is described below

commit 91332abc3666b12b26af5731eb89314380071686
Author: Martin Desruisseaux <martin.desruisseaux@geomatys.com>
AuthorDate: Wed Oct 17 13:15:26 2018 +0200

    Investigate why some CRS are considered not equal when they should be.
    For now we just documented the finding in the following JIRA task; no fix has been attempted
yet:
    - https://issues.apache.org/jira/browse/SIS-433
    - https://issues.apache.org/jira/browse/SIS-434
---
 application/sis-openoffice/pom.xml                 |  6 +++
 .../org/apache/sis/referencing/cs/AbstractCS.java  |  8 ++-
 .../operation/AbstractCoordinateOperation.java     |  5 +-
 .../operation/projection/ObliqueMercator.java      |  2 +-
 .../sis/test/integration/ConsistencyTest.java      | 63 +++++++++++++++++-----
 .../main/java/org/apache/sis/measure/Units.java    |  2 +-
 .../main/java/org/apache/sis/util/Utilities.java   |  8 +--
 pom.xml                                            | 15 +++++-
 8 files changed, 82 insertions(+), 27 deletions(-)

diff --git a/application/sis-openoffice/pom.xml b/application/sis-openoffice/pom.xml
index 9fcfdd9..35dd9b1 100644
--- a/application/sis-openoffice/pom.xml
+++ b/application/sis-openoffice/pom.xml
@@ -142,6 +142,12 @@
           <artifactId>sis-embedded-data</artifactId>
           <version>${sis.non-free.version}</version>
           <scope>runtime</scope>
+          <exclusions>
+            <exclusion>
+              <groupId>*</groupId>
+              <artifactId>*</artifactId>
+            </exclusion>
+          </exclusions>
         </dependency>
       </dependencies>
     </profile>
diff --git a/core/sis-referencing/src/main/java/org/apache/sis/referencing/cs/AbstractCS.java
b/core/sis-referencing/src/main/java/org/apache/sis/referencing/cs/AbstractCS.java
index eb33e8c..35a749e 100644
--- a/core/sis-referencing/src/main/java/org/apache/sis/referencing/cs/AbstractCS.java
+++ b/core/sis-referencing/src/main/java/org/apache/sis/referencing/cs/AbstractCS.java
@@ -406,11 +406,9 @@ public class AbstractCS extends AbstractIdentifiedObject implements CoordinateSy
                 return Arrays.equals(axes, ((AbstractCS) object).axes);
             }
             case DEBUG: {
-                final int d1 = axes.length;
-                final int d2 = ((CoordinateSystem) object).getDimension();
-                if (d1 != d2) {
-                    throw new AssertionError(Errors.format(Errors.Keys.MismatchedDimension_2,
d1, d2));
-                }
+                final int d1, d2;
+                assert (d1 = axes.length) == (d2 = ((CoordinateSystem) object).getDimension())
+                        : Errors.format(Errors.Keys.MismatchedDimension_2, d1, d2);
                 // Fall through
             }
             default: {
diff --git a/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/AbstractCoordinateOperation.java
b/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/AbstractCoordinateOperation.java
index 6d7aaa5..c421576 100644
--- a/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/AbstractCoordinateOperation.java
+++ b/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/AbstractCoordinateOperation.java
@@ -868,8 +868,10 @@ check:      for (int isTarget=0; ; isTarget++) {        // 0 == source
check; 1
                      * this.sourceCRS == AbstractDerivedCRS.baseCRS. Consequently we can
relax the check of
                      * sourceCRS axis order if the mode is ComparisonMode.IGNORE_METADATA.
                      */
+                    boolean debug = false;
                     if (Semaphores.queryAndSet(Semaphores.CONVERSION_AND_CRS)) {
                         if (mode.isIgnoringMetadata()) {
+                            debug = (mode == ComparisonMode.DEBUG);
                             mode = ComparisonMode.ALLOW_VARIANT;
                         }
                     } else try {
@@ -902,7 +904,8 @@ check:      for (int isTarget=0; ; isTarget++) {        // 0 == source
check; 1
                             Logging.recoverableException(Logging.getLogger(Loggers.COORDINATE_OPERATION),
                                     AbstractCoordinateOperation.class, "equals", e);
                         }
-                        return deepEquals(tr1, tr2, mode);
+                        if (deepEquals(tr1, tr2, mode)) return true;
+                        assert !debug || deepEquals(tr1, tr2, ComparisonMode.DEBUG);    
   // For locating the mismatch.
                     }
                 }
             }
diff --git a/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/projection/ObliqueMercator.java
b/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/projection/ObliqueMercator.java
index aa5e48e..742461d 100644
--- a/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/projection/ObliqueMercator.java
+++ b/core/sis-referencing/src/main/java/org/apache/sis/referencing/operation/projection/ObliqueMercator.java
@@ -241,7 +241,7 @@ public class ObliqueMercator extends ConformalProjection {
          * At this point, all parameters have been processed. Now process to their
          * validation and the initialization of (de)normalize affine transforms.
          */
-        getContextualParameters().getMatrix(MatrixRole.NORMALIZATION).convertAfter(0, null,
-λ0);
+        context.getMatrix(MatrixRole.NORMALIZATION).convertAfter(0, null, -λ0);
         final MatrixSIS denormalize = getContextualParameters().getMatrix(MatrixRole.DENORMALIZATION);
         final Matrix3 rotation = new Matrix3();
         rotation.m00 =   rotation.m11 = cos(γc);
diff --git a/core/sis-referencing/src/test/java/org/apache/sis/test/integration/ConsistencyTest.java
b/core/sis-referencing/src/test/java/org/apache/sis/test/integration/ConsistencyTest.java
index d2a7eef..c364c7f 100644
--- a/core/sis-referencing/src/test/java/org/apache/sis/test/integration/ConsistencyTest.java
+++ b/core/sis-referencing/src/test/java/org/apache/sis/test/integration/ConsistencyTest.java
@@ -20,6 +20,9 @@ import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
 import java.text.ParseException;
+import javax.measure.Quantity;
+import javax.measure.Unit;
+import javax.measure.UnitConverter;
 import org.opengis.metadata.Identifier;
 import org.opengis.util.FactoryException;
 import org.opengis.util.NoSuchIdentifierException;
@@ -55,7 +58,7 @@ import static org.junit.Assume.assumeTrue;
  * This test is executed only if {@link #RUN_EXTENSIVE_TESTS} is {@code true}.
  *
  * @author  Martin Desruisseaux (Geomatys)
- * @version 0.8
+ * @version 1.0
  * @since   0.7
  * @module
  */
@@ -84,6 +87,24 @@ public final strictfp class ConsistencyTest extends TestCase {
     private int codeWidth = 15;
 
     /**
+     * Specialization of {@link #testCoordinateReferenceSystems()} for specific cases that
were known to fail.
+     * This is used for debugging purposes only; not included in normal test execution because
it is redundant
+     * with {@link #testCoordinateReferenceSystems()}.
+     *
+     * @throws FactoryException if the coordinate reference system can not be created.
+     *
+     * @see <a href="https://issues.apache.org/jira/browse/SIS-433">SIS-433</a>
+     * @see <a href="https://issues.apache.org/jira/browse/SIS-434">SIS-434</a>
+     */
+    public void debug() throws FactoryException {
+        final String code = "EPSG::29871";
+        final CoordinateReferenceSystem crs = CRS.forCode(code);
+        final WKTFormat format = new WKTFormat(null, null);
+        format.setConvention(Convention.WKT2);
+        lookup(parseAndFormat(format, code, crs), crs);
+    }
+
+    /**
      * Verifies the WKT consistency of all CRS instances.
      *
      * @throws FactoryException if an error other than "unsupported operation method" occurred.
@@ -100,7 +121,7 @@ public final strictfp class ConsistencyTest extends TestCase {
         v2 .setConvention(Convention.WKT2);
         v2s.setConvention(Convention.WKT2_SIMPLIFIED);
         for (final String code : CRS.getAuthorityFactory(null).getAuthorityCodes(CoordinateReferenceSystem.class))
{
-            if (!EXCLUDES.contains(code)) {
+            if (!EXCLUDES.contains(code) && !code.startsWith("Proj4:")) {
                 final CoordinateReferenceSystem crs;
                 try {
                     crs = CRS.forCode(code);
@@ -234,21 +255,37 @@ public final strictfp class ConsistencyTest extends TestCase {
     /**
      * Verifies that {@code IdentifiedObjects.lookupURN(…)} on the parsed CRS can find
back the original CRS.
      */
-    private static void lookup(final CoordinateReferenceSystem parsed, final CoordinateReferenceSystem
crs)
-            throws FactoryException
-    {
+    private void lookup(final CoordinateReferenceSystem parsed, final CoordinateReferenceSystem
crs) throws FactoryException {
         final Identifier id = IdentifiedObjects.getIdentifier(crs, null);
-        /*
-         * Lookup operation is not going to work if the CRS are not approximately equal.
-         */
         final String urn = IdentifiedObjects.toURN(crs.getClass(), id);
         assertNotNull(crs.getName().getCode(), urn);
-        assertTrue(urn, Utilities.deepEquals(crs, parsed, ComparisonMode.DEBUG));
         /*
-         * Now test the lookup operation. Since the parsed CRS has an identifier,
-         * that lookup operation should not do a lot of work actually.
+         * Lookup operation is not going to work if the CRS are not approximately equal.
+         * However in current Apache SIS implementation, we can perform this check only
+         * if the scale factor of units of measurement have the exact same value.
+         *
+         * This check can be removed after the following issue is resolved:
+         * https://issues.apache.org/jira/browse/SIS-433
          */
-        final String lookup = IdentifiedObjects.lookupURN(parsed, null);
-        assertEquals("Failed to lookup the parsed CRS.", urn, lookup);
+        if (toStandardUnit(crs   .getCoordinateSystem().getAxis(0).getUnit()).equals(
+            toStandardUnit(parsed.getCoordinateSystem().getAxis(0).getUnit())))
+        {
+            assertTrue(urn, Utilities.deepEquals(crs, parsed, ComparisonMode.DEBUG));
+            /*
+             * Now test the lookup operation. Since the parsed CRS has an identifier,
+             * that lookup operation should not do a lot of work actually.
+             */
+            final String lookup = IdentifiedObjects.lookupURN(parsed, null);
+            assertEquals("Failed to lookup the parsed CRS.", urn, lookup);
+        } else {
+            print(id.getCode(), "SKIPPED", "Unit conversion factors differ.");
+        }
+    }
+
+    /**
+     * Returns the converter to standard unit.
+     */
+    private static <Q extends Quantity<Q>> UnitConverter toStandardUnit(final
Unit<Q> unit) {
+        return unit.getConverterTo(unit.getSystemUnit());
     }
 }
diff --git a/core/sis-utility/src/main/java/org/apache/sis/measure/Units.java b/core/sis-utility/src/main/java/org/apache/sis/measure/Units.java
index 48ceabd..5bfde64 100644
--- a/core/sis-utility/src/main/java/org/apache/sis/measure/Units.java
+++ b/core/sis-utility/src/main/java/org/apache/sis/measure/Units.java
@@ -1619,7 +1619,7 @@ public final class Units extends Static {
      * for fetching the base units, and derives automatically other units from the information
      * found in the EPSG database. This method is also used by other classes not directly
related
      * to the EPSG database, like {@link org.apache.sis.referencing.factory.CommonAuthorityFactory}
-     * which uses EPSG code for identifying units.</p>
+     * which uses EPSG codes for identifying units.</p>
      *
      * <p>The currently recognized values are:</p>
      * <table class="sis">
diff --git a/core/sis-utility/src/main/java/org/apache/sis/util/Utilities.java b/core/sis-utility/src/main/java/org/apache/sis/util/Utilities.java
index 7d9b6a1..19b6fc2 100644
--- a/core/sis-utility/src/main/java/org/apache/sis/util/Utilities.java
+++ b/core/sis-utility/src/main/java/org/apache/sis/util/Utilities.java
@@ -229,7 +229,7 @@ public final class Utilities extends Static {
         final Iterator<?> it2 = object2.iterator();
         while (it1.hasNext()) {
             if (!it2.hasNext()) {
-                assert isNotDebug(mode) : mismatchedElement("Iterable", object1, object2,
"size");
+                assert isNotDebug(mode) : mismatchedElement("Iterable", object1, object2,
"sizes");
                 return false;
             }
             Object element1 = it1.next();
@@ -238,7 +238,7 @@ public final class Utilities extends Static {
                 continue;
             }
             if (!(object1 instanceof Set<?> && object2 instanceof Set<?>))
{
-                assert isNotDebug(mode) : mismatchedElement("Iterable", object1, object2,
"element");
+                assert isNotDebug(mode) : mismatchedElement("Iterable", object1, object2,
"elements");
                 return false;
             }
             /*
@@ -258,7 +258,7 @@ public final class Utilities extends Static {
             while (true) {
                 final Iterator<?> it = copy.iterator();
                 do if (!it.hasNext()) {
-                    assert isNotDebug(mode) : mismatchedElement("Set", object1, object2,
"element");
+                    assert isNotDebug(mode) : mismatchedElement("Set", object1, object2,
"elements");
                     return false; // An element has not been found.
                 } while (!deepEquals(it.next(), element2, mode));
                 it.remove();
@@ -303,7 +303,7 @@ public final class Utilities extends Static {
         if (type == null && object2 instanceof CheckedContainer<?>) {
             type = ((CheckedContainer<?>) object2).getElementType();
         }
-        return header + '<' + (type != null ? type.getSimpleName() : "?") + ">: " +
tail + " not equals.";
+        return header + '<' + (type != null ? type.getSimpleName() : "?") + ">: " +
tail + " not equal.";
     }
 
     /**
diff --git a/pom.xml b/pom.xml
index 4961239..c6de25f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,6 +19,17 @@
   under the License.
 -->
 
+<!-- =============================================================================================
+     Maven 2 project configuration file
+     http://maven.apache.org/maven2/
+
+     Apache SIS build requires Java 10, but compilation result can be executed on Java 8.
+     Setting the SIS_DATA environment variable before build is optional but recommended.
+
+     Build development snapshot:    mvn clean install
+     Include EPSG database:         mvn install -Pnon-free
+     Run more extensive tests:      mvn test -Dorg.apache.sis.test.extensive=true
+     =============================================================================================
-->
 <project xmlns              = "http://maven.apache.org/POM/4.0.0"
          xmlns:xsi          = "http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation = "http://maven.apache.org/POM/4.0.0
@@ -513,7 +524,7 @@
     <maven.compiler.source>8</maven.compiler.source>
     <maven.compiler.target>8</maven.compiler.target>
     <sis.plugin.version>${project.version}</sis.plugin.version>
-    <sis.non-free.version>0.8</sis.non-free.version>
+    <sis.non-free.version>1.0-M1</sis.non-free.version>
     <geoapi.version>4.0-SNAPSHOT</geoapi.version>
   </properties>
 
@@ -621,7 +632,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
-        <version>2.22.0</version>
+        <version>2.22.1</version>
         <configuration>
           <includes>
             <include>**/*TestSuite.java</include>


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