Examples of org.locationtech.udig.catalog.IService

org.locationtech.udig.catalog.IService

Represents a geo spatial service handle. Follows the same design as IResource.

Represents a spatial service, which may be lazily loaded. The existance of this object does not ensure that the advertized data is guaranteed to exist, nor does this interface guarantee that the service exists based on this object's existance. We should also note the resource management is left to the user, and that resolve() is not guaranteed to return the same instance object from two subsequent calls, but may. This is merely a handle to some information about a service, and a method of aquiring an instance of the service ...

NOTE: This may be the result of communications with a metadata service, and as such this service described may not be running right now. Remember to check the service status.

Implementing an IService

Implement the abstract methods and you are good to go.

Extending an IService

You may want to implement your own IService in order to provide a handle for a new kind of API.

New method:

  public API getAPI( ProgressMonitor monitor){ if (monitor == null) monitor = new NullProgressMonitor(); monitor.beingTask("Connect to API",2); try {             String server = getConnectionParams().get("server"); monitor.worked(1); return new API( s ); } finally { monitor.done(); } }

(note the use of NullProgressMonitor)

Optional: Customize resolve method to advertise your new API "dynamically"

  public <T> boolean canResolve( Class<T> adaptee ) { return adaptee != null && (adaptee.isAssignableFrom(API.class) || super.canResolve(adaptee)); } public <T> T resolve( Class<T> adaptee, IProgressMonitor monitor ) throws IOException { if (monitor == null) monitor = new NullProgressMonitor();  if (adaptee == null) throw new NullPointerException("No adaptor specified" ); if (adaptee.isAssignableFrom(API.class)) { return adaptee.cast(getAPI(monitor)); } return super.resolve(adaptee, monitor); }

(note the call to super)

Optional: cache your API as the "connection"

  API api = null; Throwable msg = null; public synchronized API getAPI( ProgressMonitor monitor){ if( api != null ) return api; if (monitor == null) monitor = new NullProgressMonitor(); monitor.beingTask("Connect to API",2); try {             String server = getConnectionParams().get("server"); monitor.worked(1); api = new API( s ); monitor.worked(1); return api; } finally { monitor.done(); } } public Status getStatus() { return msg != null? Status.BROKEN : api == null? Status.NOTCONNECTED : Status.CONNECTED; } public Throwable getMessage(){ return msg; } public synchronized void dispose( ProgressMonitor monitor ){ if( api != null ){ api.dispose(); api = null; } if( msg != null ) msg = null; }

(Note the use of getMessage and getStatus)

@author David Zwiers, Refractions Research @since 0.6 @version 1.2 @see IServiceInfo @see IServiceFactory

        URL location = new URL(url);
        
        WMSServiceExtension creator = new WMSServiceExtension();


        Map<String, Serializable> params = creator.createParams(location);
        IService service = creator.createService(location, params);
        service.getInfo(monitor); // load it


        List<IService> servers = new ArrayList<IService>();
        servers.add(service);


        /*

View Full Code Here


                if (parent instanceof IGeoResource) {
                    IGeoResource parentResource = (IGeoResource) parent;
                    path.addAll(toTreePath(parentResource));
                } else if (parent instanceof IService) {
                    IService service = (IService) parent;
                    path.add(service);
                }


                path.add(resource);
                return path;

View Full Code Here

        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);
            data.addNewResources( contents );
        }
    }

View Full Code Here

        
        if(service == null){
          List<IService> services = CatalogPlugin.getDefault().getServiceFactory().createService(url);
          Iterator<IService> srv = services.iterator();
          while(srv.hasNext()){
            IService s = srv.next();
            if(s.canResolve(WebMapServer.class)){
              service = s;
            }
          }


            if(service == null){

View Full Code Here

        if(service == null){


          List<IService> services = CatalogPlugin.getDefault().getServiceFactory().createService(url);
          Iterator<IService> srv = services.iterator();
          while(srv.hasNext()){
            IService s = srv.next();
            if(s.canResolve(WFSDataStore.class)){
              service = s;
            }
          }


            if(service == null){

View Full Code Here

    
            if( context instanceof IService ){
                services.add((IService)context);
                //services = Collections.singleton((IService)context);
            }else if (context instanceof IGeoResource){
                IService service = ((IGeoResource) context).service(monitor);
                services.add((IService)context);
                services.add(service);
            }else{
            
                Map<String, Serializable> params = factory.createConnectionParameters(context);

View Full Code Here

        
        List<IResolve> resolves = localCatalog.find(url, monitor);
        ArrayList<IService> services = new ArrayList<IService>();
        for( IResolve iResolve : resolves ) {
            if (iResolve instanceof IService) {
                IService service = (IService) iResolve;
                services.add(service);
            }
        }
        
        return services;

View Full Code Here

                                LayerImpl layer = (LayerImpl) firstElement;
                                geoResource = layer.getGeoResource();


                            }
                            if (firstElement instanceof IService) {
                                IService service = (IService) firstElement;
                                List< ? extends IGeoResource> resources = service.resources(new NullProgressMonitor());
                                if (resources.size() > 0) {
                                    geoResource = resources.get(0);
                                }
                            }
                            if (geoResource != null) {

View Full Code Here

             * replace the service
             */
            if (rereadService.size() > 0) {
                Runnable refreshCatalogRunner = new Runnable(){
                    public void run() {
                        final IService newJGrassService = rereadService.get(0);
                        catalog.remove(originalJGrassService);
                        catalog.add(newJGrassService);
                    }
                };

View Full Code Here

                    IGeoResource geoResource = (IGeoResource)object;
                    resources.add(geoResource);
                    services.add(geoResource.service(ProgressManager.instance().get()));
                }
                if( object instanceof IService ){
                    IService service = (IService) object;
                    List< ? extends IGeoResource> members;
                    members = service.resources( ProgressManager.instance().get() );
                    if( members.isEmpty() )
                        continue;
                    services.add(service);
                    if( members.size()==1 )
                        resources.add(members.get(0));

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

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

org.eclipse.core.runtime.NullProgressMonitor

org.eclipse.core.runtime.SubProgressMonitor

org.locationtech.udig.catalog.csw.CswResource$CswWFSResource

org.locationtech.udig.catalog.csw.CswResource$CswWMSResource

org.locationtech.udig.catalog.geotools.data.GeoToolsDataStoreServiceTest

org.locationtech.udig.catalog.google.GoogleResource$GoogleWFSResource

org.locationtech.udig.catalog.google.GoogleResource$GoogleWMSResource

org.locationtech.udig.catalog.internal.CatalogImpl

org.locationtech.udig.catalog.internal.db2.ui.DB2WizardPage

org.locationtech.udig.catalog.internal.geotiff.GeoTiffGeoResourceImpl

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.