Examples of org.locationtech.udig.catalog.IServiceFactory

org.locationtech.udig.catalog.IServiceFactory
Builds *new* IService handle by using ServiceExtention to process provided connection parameters.
Please note that the *ID* associated with a set of connection parameters is the sole responsible of the individual ServiceExtention implementations (after all only ShpServiceExtention knows how to take connection parameters and determine a good identifier).
Connection parameters, and dragNdrop URLs, are only used as a guide:
- Information that was not used may be removed
- Authentication information (such as username and password) when we build a security plugin
- Where possible we make use of sensible defaults for missing information
We hope that for most uses client code will be able to store an ID directly and use it to look up a live resources in the Catalog. The use of IServiceFactory should be rare and unusual.
Using Connection Parameters to connect to an IService
If you are working with client code (such as a project file) that stores connection information directly please use IServiceFactory to create a IService handle and use the service.getID() to look up the live resource in the local catalog.
1. User supplied connection parameters
2. IServiceFactory.createService( parameters )
3. Process list of candidate services; allowing the user to choose if needed
4. Catalog findById( service.getIdentifier() )
  - if non null the service is already known (the returned service may not be in the location you expect; for example if the file has been moved and the catalog knows about it)
  - if null the catalog has never met this service before; use add( service ) to register it
5. service.getInfo( monitor ) to ensure the service can connect
  - If service.getStatus() == Status.BROKEN you can check service.getMessage() to find out why.
  - If service.getStatus() == Status.CONNECTED everything is good
Use Drag and Drop URLs to connect to an IService
Handling a drag and drop URL works in a similar manner; this time we have even less information to work with and it is much more likely that the user will need to choose between the available IService alternatives.
Also not that the IService handles returned may not have enough information to connect; a classic case is a security enabled WFS capabilities document. User involvement will be required. @since 1.0 Initial version caused some confusion over use of acquire @version 1.1 Explicitly broke generation of default parameters and creating a IService intoseparate steps @author Jody Garnett (Refractions Research)

     * Adds the required services into the catalog.
     */
    public void load() {


        ICatalog catalog = CatalogPlugin.getDefault().getLocalCatalog();
        IServiceFactory serviceFactory = CatalogPlugin.getDefault().getServiceFactory();
        synchronized (connectionParams) {
            for( Map.Entry<ID, Map<String, Serializable>> entry : connectionParams.entrySet() ) {
                Map<String, Serializable> params = entry.getValue();
                boolean couldResolve = resolveURLs(params);
                if (!couldResolve) {
                    // if couldn't resolve log the warning and continue. There is no way we can load
                    // the resource
                    ProjectPlugin
                            .log(
                                    "Warning: couldn't find the layer's resources in the catalog and can't construct it because the current map" //$NON-NLS-1$
                                            + " does not have a Resource:" + layer.getID(), //$NON-NLS-1$
                                    new Exception("Failure loading layer")); //$NON-NLS-1$
                    continue;
                }


                List<IService> createdServices = serviceFactory.createService(params);
                updateLayerID(createdServices);
                if (serviceExistsInCatalog(createdServices, catalog)) {
                    continue;
                } else {
                    addServicesToCatalog(createdServices, catalog);

View Full Code Here

        
        int urlProcessCount = 0;
        
        List<IService> availableServices = new ArrayList<IService>();//services already in catalog


        IServiceFactory factory = CatalogPlugin.getDefault().getServiceFactory();


        monitor.beginTask("Check", 1);
        monitor.subTask("Check available services");


        try {
            List<IService> possible = factory.createService(url);
            monitor.worked(urlProcessCount);


            IProgressMonitor monitor3 = new SubProgressMonitor(monitor, 60);
            monitor3.beginTask("connect", possible.size() * 10);

View Full Code Here

        if (monitor == null)
            monitor = new NullProgressMonitor();


        List<IService> availableServices = new ArrayList<IService>();//services already in catalog


        IServiceFactory factory = CatalogPlugin.getDefault().getServiceFactory();
        
        // IOException used to report a problem connecting; usually we only have one
        // Service willing to try with a given set of parameters so this works out okay
        //
        IOException eek = null;
        try {


            if (params != null && !params.isEmpty()) {
                List<IService> createdServices = factory.createService(params);
                Set<IService> results = new HashSet<IService>(createdServices);
                if( results.isEmpty() ){
                    return createdServices; // nothing was willing to try connecting!
                }
                for( IService service : results ) {

View Full Code Here

        File file = new File("data/point.shp");
        Map<String, Serializable> map = new HashMap<String, Serializable>();
        map.put( "url", file.toURI().toURL() );
        map.put( "fstype", "shape" );
               
        IServiceFactory serviceFactory = CatalogPlugin.getDefault().getServiceFactory();
        List<IService> test = serviceFactory.createService(map);
        assertFalse( "Able to connect to shapefile", test.isEmpty() );
        
        boolean found = checkForInstanceOf( test, ShpServiceImpl.class);
        assertTrue( "ShpServiceImpl", found );
    }

View Full Code Here

        File file = new File("data/point.shp");
        Map<String, Serializable> map = new HashMap<String, Serializable>();
        map.put( "url", file.toURI().toURL() );
        map.put( "fstype", "shape-ng" );
        
        IServiceFactory serviceFactory = CatalogPlugin.getDefault().getServiceFactory();
        List<IService> test = serviceFactory.createService(map);
        
        boolean found = checkForInstanceOf( test, ShpServiceImpl.class );
        assertTrue( "ShpServiceImpl", !found );
        
        found = checkForInstanceOf( test, DataStoreService.class );

View Full Code Here

        }
    }
    private void loadFileInMap( File file ) throws Exception {
        URL fileUrl = file.toURI().toURL();
        CatalogPlugin cp = CatalogPlugin.getDefault();
        IServiceFactory sf = cp.getServiceFactory();
        List<IService> services = sf.createService(fileUrl);
        List<IGeoResource> resources = new ArrayList<IGeoResource>();
        for( IService service : services ) {
            List< ? extends IGeoResource> geoResource = service.resources(new NullProgressMonitor());
            if (geoResource != null) {
                if (service instanceof JGrassService) {

View Full Code Here

    public MapGraphicWizardPage() {
        super(Messages.MapGraphic_title); 
    }


    public List<IService> getResources( IProgressMonitor monitor ) throws Exception {
        IServiceFactory factory = CatalogPlugin.getDefault().getServiceFactory();
        List<IService> services = factory.createService(MapGraphicService.SERVICE_URL);


        return services;
    }

View Full Code Here

                    }
                }
            }
        }
        ID id = shapefile.getID();
    IServiceFactory serviceFactory = CatalogPlugin.getDefault().getServiceFactory();
    IService newService = serviceFactory.createService(parametersMap).iterator().next();
    ICatalog localCatalog = CatalogPlugin.getDefault().getLocalCatalog();
    localCatalog.replace(id, newService );
        return null;
    }

View Full Code Here

     * @throws IOException
     */
    List<IService> acquireGoodServices( URL url, IProgressMonitor monitor ) throws IOException {
        if (url == null)
            return Collections.<IService>emptyList();
        IServiceFactory factory = CatalogPlugin.getDefault().getServiceFactory();
        List<IService> result = factory.createService(url);
        if (result.isEmpty()) {
            throw new IOException("Could not acquire a working service for " + url); //$NON-NLS-1$
        }
        List<IService> good = new ArrayList<IService>();
        IOException notGood = null;

View Full Code Here

    @SuppressWarnings("unchecked")
    private void addToCatalog( File file, Data data ) throws IOException {
        IProgressMonitor monitor = ProgressManager.instance().get();


        // add the service to the catalog
        IServiceFactory sFactory = CatalogPlugin.getDefault().getServiceFactory();
        ICatalog catalog = CatalogPlugin.getDefault().getLocalCatalog();
        URL url = URLUtils.fileToURL(file);
        List<IService> services = sFactory.createService(url);
        monitor.beginTask("add to catalog", services.size() * 10);
        for( IService service : services ) {
            IService registeredService = catalog.add(service);
            SubProgressMonitor monitor2 = new SubProgressMonitor(monitor, 10);
            List<IGeoResource> contents = (List<IGeoResource>) registeredService.resources(monitor2);

View Full Code Here

0 1 2

TOP

Related Classes of org.locationtech.udig.catalog.IServiceFactory

org.locationtech.udig.catalog.internal.CatalogImpl

org.locationtech.udig.catalog.internal.shp.ShapeMover

org.locationtech.udig.catalog.internal.ui.actions.ResetService

org.locationtech.udig.catalog.internal.ui.CatalogViewDropAdapter

org.locationtech.udig.catalog.internal.ui.ops.NewFeatureTypeOpTest

org.locationtech.udig.catalog.jgrass.utils.JGrassCatalogUtilities

org.locationtech.udig.catalog.tests.ShapeCatalogTest

org.locationtech.udig.catalog.ui.export.CatalogExportWizard

org.locationtech.udig.catalog.ui.workflow.EndConnectionState

org.locationtech.udig.catalog.wmsc.server.WMSTileSetResolverTest

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of org.locationtech.udig.catalog.IServiceFactory

Using Connection Parameters to connect to an IService

Use Drag and Drop URLs to connect to an IService

Related Classes of org.locationtech.udig.catalog.IServiceFactory