Examples of org.geotools.coverage.io.Driver

org.geotools.coverage.io.Driver
A driver adding the ability to work with a new coverage format or service.
Classes implementing this interface basically act as factory for creating connections to coverage sources like files, WCS services, WMS services, databases, etc...
This class also offers basic create / delete functionality (which can be useful for file based coverage formats).
Purpose of this class is to provide basic information about a certain coverage service/format as well as about the parameters needed in order to connect to a source which such a service/format is able to work against.
Notice that as part as the roll of a "factory" interface this class makes available an {@link #isAvailable()} method which should check if all theneeded dependencies which can be jars as well as native libs or configuration files. @author Simone Giannecchini, GeoSolutions. @author Jody Garnett @since 2.5 @source $URL$

        // get all Driver implementations
        scanForPlugins();
        final Iterator<Driver> it = getServiceRegistry().getServiceProviders(Driver.class, false);
        final Set<Driver> drivers = new HashSet<Driver>();
        while (it.hasNext()) {
            final Driver spi = (Driver) it.next();
            if (spi.isAvailable())
                drivers.add(spi);
        }
        return Collections.unmodifiableSet(drivers);
    }

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     */
    public static Driver[] getAvailableDriversArray() {
        final Set<? extends Driver> drivers = CoverageIO.getAvailableDrivers();
        final List<Driver> driverSet = new ArrayList<Driver>(drivers.size());
        for (Iterator<? extends Driver> iter = drivers.iterator(); iter.hasNext();) {
            final Driver element = (Driver) iter.next();
            if (element.isAvailable())
                driverSet.add(element);
        }
        return (Driver[]) driverSet.toArray(new Driver[driverSet.size()]);
    }

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        final Set<? extends Driver> availaibleDrivers = CoverageIO.getAvailableDrivers();
        final Set<Driver> drivers = new HashSet<Driver>();
        final Iterator<? extends Driver> it = availaibleDrivers.iterator();
        while (it.hasNext()) {
            // get the factory
            final Driver spi = (Driver) it.next();
            // check if we can accept it
            Map<String, Serializable> params = new HashMap<String, Serializable>();
            params.put("url", url);
            if (spi.isAvailable() && spi.canAccess(DriverCapabilities.CONNECT,params))
                drivers.add(spi);


        }


        return Collections.unmodifiableSet(drivers);

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    @Test
    public void isAvailable() throws NoSuchAuthorityCodeException, FactoryException {
        CoverageIO.scanForPlugins();
        Set<Driver> drivers = CoverageIO.getAvailableDrivers();
        Driver driverFound = null;
        for (Driver driver : drivers)
            if (driver instanceof NetCDFDriver) {
                driverFound = driver;
                break;
            }
        assertTrue("NetCDFDriver not registered", driverFound != null);
        assertTrue("NetCDFDriver not available", driverFound.isAvailable());
    }

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        assertTrue(drivers[0] instanceof TestDriver);
        final TestDriver testDriver = (TestDriver) drivers[0];


        final URL testURL = new URL(TestDriver.TEST_URL);


        final Driver driver = CoverageIO.findDriver(testURL);
        assertEquals(testDriver, driver);
        final Set<Driver> driversSet = CoverageIO.findDrivers(testURL);
        assertSame(testDriver, driversSet.iterator().next());


        // Connecting to the only coverageAccess supported by the TestDriver

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    public void testIsAvailable() throws NoSuchAuthorityCodeException,
            FactoryException {
        CoverageIO.scanForPlugins();
        
        Set<Driver> drivers = CoverageIO.getAvailableDrivers();
        Driver driverFound = null;
        for (Driver driver: drivers)
            if (driver instanceof HDF4Driver) {
                driverFound = driver;
                break;
        }
        assertTrue("HDF4Driver not registered", driverFound!=null);
        assertTrue("HDF4Driver not available", driverFound.isAvailable());
    }

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Related Classes of org.geotools.coverage.io.Driver

org.geotools.coverage.io.driver.CoverageIOTest

org.geotools.coverage.io.hdf4.ServiceTest

org.geotools.coverage.io.impl.CoverageIO

org.geotools.coverage.io.netcdf.ServiceTest

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