Examples of org.geotools.referencing.factory.IdentifiedObjectFinder.find()

Package org.geotools.referencing.factory

Class org.geotools.referencing.factory.IdentifiedObjectFinder

Examples of org.geotools.referencing.factory.IdentifiedObjectFinder.find()

org.geotools.referencing.factory.IdentifiedObjectFinder.find()
Lookups an object which is {@linkplain CRS#equalsIgnoreMetadata equals, ignoring metadata}, to the specified object. The default implementation tries to instantiate some {@linkplain IdentifiedObject identified objects} from the authority factoryspecified at construction time, in the following order:
- If the specified object contains {@linkplain IdentifiedObject#getIdentifiers identifiers} associated to the same authority than the factory, then thoseidentifiers are used for {@linkplain AuthorityFactory#createObject creatingobjects} to be tested.
- If the authority factory can create objects from their {@linkplain IdentifiedObject#getName name} in addition of identifiers, then the name and{@linkplain IdentifiedObject#getAlias aliases} are used for creating objectsto be tested.
- If {@linkplain #isFullScanAllowed full scan is allowed}, then full {@linkplain #getCodeCandidates set of authority codes} are used forcreating objects to be tested.
The first of the above created objects which is equals to the specified object in the the sense of {@link CRS#equalsIgnoreMetadata equalsIgnoreMetadata} is returned. @param object The object looked up. @return The identified object, or {@code null} if not found. @throws FactoryException if an error occured while creating an object.

        final IdentifiedObjectFinder finder = factory.getIdentifiedObjectFinder(CoordinateReferenceSystem.class);
        assertTrue("Newly created finder should default to full scan.", finder.isFullScanAllowed());


        finder.setFullScanAllowed(false);
        assertSame("Should find without the need for scan, since we can use the CRS:84 identifier.",
                   CRS84, finder.find(CRS84));


        finder.setFullScanAllowed(true);
        assertSame("Allowing scanning should not make any difference for this CRS84 instance.",
                   CRS84, finder.find(CRS84));

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        assertSame("Should find without the need for scan, since we can use the CRS:84 identifier.",
                   CRS84, finder.find(CRS84));


        finder.setFullScanAllowed(true);
        assertSame("Allowing scanning should not make any difference for this CRS84 instance.",
                   CRS84, finder.find(CRS84));


        assertNotSame("Required condition for next test.", CRS84, DefaultGeographicCRS.WGS84);
        assertFalse  ("Required condition for next test.", CRS84.equals(DefaultGeographicCRS.WGS84));
        assertTrue   ("Required condition for next test.", CRS.equalsIgnoreMetadata(CRS84, DefaultGeographicCRS.WGS84));

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        assertFalse  ("Required condition for next test.", CRS84.equals(DefaultGeographicCRS.WGS84));
        assertTrue   ("Required condition for next test.", CRS.equalsIgnoreMetadata(CRS84, DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(false);
        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(true);
        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(DefaultGeographicCRS.WGS84));

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        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(true);
        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(false);
        assertNull("The scan result should not be cached.",
                   finder.find(DefaultGeographicCRS.WGS84));

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        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(false);
        assertNull("The scan result should not be cached.",
                   finder.find(DefaultGeographicCRS.WGS84));


        // --------------------------------------------------
        // Same test than above, using a CRS created from WKT
        // --------------------------------------------------

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        assertFalse("Required condition for next test.", CRS84.equals(search));
        assertTrue ("Required condition for next test.", CRS.equalsIgnoreMetadata(CRS84, search));


        finder.setFullScanAllowed(false);
        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(search));


        finder.setFullScanAllowed(true);
        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(search));

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        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(search));


        finder.setFullScanAllowed(true);
        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(search));


        assertEquals("CRS:84", finder.findIdentifier(search));
    }


    /**

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        final GeographicCRS CRS84 = factory.createGeographicCRS("CRS:84");
        final IdentifiedObjectFinder finder = factory.getIdentifiedObjectFinder(CoordinateReferenceSystem.class);


        finder.setFullScanAllowed(false);
        assertSame("Should find without the need for scan, since we can use the CRS:84 identifier.",
                   CRS84, finder.find(CRS84));


        finder.setFullScanAllowed(false);
        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(DefaultGeographicCRS.WGS84));

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        assertSame("Should find without the need for scan, since we can use the CRS:84 identifier.",
                   CRS84, finder.find(CRS84));


        finder.setFullScanAllowed(false);
        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(true);
        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(DefaultGeographicCRS.WGS84));

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        assertNull("Should not find WGS84 without a full scan, since it doesn't contains the CRS:84 identifier.",
                   finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(true);
        assertSame("A full scan should allow us to find WGS84, since it is equals ignoring metadata to CRS:84.",
                   CRS84, finder.find(DefaultGeographicCRS.WGS84));


        finder.setFullScanAllowed(false);
        assertSame("At the contrary of testFind(), the scan result should be cached.",
                   CRS84, finder.find(DefaultGeographicCRS.WGS84));

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