Revision 4447 trunk/extensions/extGeoProcessing/src/com/iver/gvsig/geoprocessing/impl/difference/DifferenceGeoprocess.java
| DifferenceGeoprocess.java | ||
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* |
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* $Id$ |
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* $Log$ |
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* Revision 1.5 2006-03-14 18:32:46 fjp |
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* Revision 1.6 2006-03-15 18:31:50 azabala |
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* *** empty log message *** |
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* |
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* Revision 1.5 2006/03/14 18:32:46 fjp |
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* Cambio con LayerDefinition para que sea compatible con la definici?n de tablas tambi?n. |
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* |
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* Revision 1.4 2006/03/07 21:01:33 azabala |
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import com.hardcode.gdbms.engine.data.driver.DriverException; |
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import com.iver.cit.gvsig.fmap.core.IFeature; |
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import com.iver.cit.gvsig.fmap.core.IGeometry; |
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import com.iver.cit.gvsig.fmap.drivers.DriverIOException; |
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import com.iver.cit.gvsig.fmap.drivers.ILayerDefinition; |
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import com.iver.cit.gvsig.fmap.drivers.ITableDefinition; |
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import com.iver.cit.gvsig.fmap.edition.EditionException; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.FLyrVect; |
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import com.iver.cit.gvsig.fmap.operations.CancellableMonitorable; |
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import com.iver.cit.gvsig.fmap.operations.DefaultCancellableMonitorable; |
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import com.iver.cit.gvsig.fmap.operations.strategies.Strategy; |
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import com.iver.cit.gvsig.fmap.operations.strategies.StrategyManager; |
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import com.iver.cit.gvsig.fmap.operations.strategies.VisitException; |
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import com.iver.gvsig.geoprocessing.model.IOverlayGeoprocess; |
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import com.iver.gvsig.geoprocessing.schemabuilder.DefinitionUtils; |
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import com.iver.gvsig.geoprocessing.schemabuilder.XTypes; |
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import com.iver.utiles.swing.threads.IMonitorableTask; |
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/** |
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* This geoprocess computes diference geometries of two overlay polygon layers. |
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} |
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public void cancel() {
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try {
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schemaManager.drop(); |
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} catch (EditionException e) {
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// FIXME (debe lanzar una excepcion cancel) |
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e.printStackTrace(); |
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} |
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} |
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public ILayerDefinition createLayerDefinition() {
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return null; |
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} |
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public IMonitorableTask createTask() {
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try {
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return new DifferenceMonitorableTask(); |
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} catch (DriverIOException e) {
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//FIXME Debe lanzar excepcion createTask ? |
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return null; |
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} |
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} |
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/** |
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* IMonitorableTask that allows to run diff geoprocess in background, |
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* with cancelation requests. |
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* |
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* @author azabala |
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* |
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*/ |
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class DifferenceMonitorableTask implements IMonitorableTask {
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private CancellableMonitorable cancelMonitor = null; |
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// FIXME INTERNACIONALIZAR ESTO |
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String DIFFERENCE_MESSAGE = "Computing differences: "; |
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private boolean finished = false; |
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DifferenceMonitorableTask() throws DriverIOException {
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initialize(); |
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} |
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void initialize() throws DriverIOException {
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cancelMonitor = createCancelMonitor(); |
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} |
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private CancellableMonitorable createCancelMonitor() |
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throws DriverIOException {
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DefaultCancellableMonitorable monitor = new |
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DefaultCancellableMonitorable(); |
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monitor.setInitialStep(0); |
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//Really its undeterminated, but so we must to process all |
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//elements of first layer (or selection) we are going to |
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//consideer determinated |
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monitor.setDeterminatedProcess(true); |
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int numSteps = 0; |
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if (onlyFirstLayerSelection) {
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FBitSet selection = firstLayer.getRecordset().getSelection(); |
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numSteps = selection.cardinality(); |
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} else {
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numSteps = firstLayer.getSource().getShapeCount(); |
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} |
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monitor.setFinalStep(numSteps); |
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return monitor; |
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} |
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public int getInitialStep() {
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return cancelMonitor.getInitialStep(); |
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} |
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public int getFinishStep() {
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return cancelMonitor.getFinalStep(); |
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} |
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public int getCurrentStep() {
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return cancelMonitor.getCurrentStep(); |
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} |
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public String getStatusMessage() {
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// FIXME Cambiar esto por un mecanismo de eventos, |
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// de forma que la tarea lo que tenga sea un escuchador |
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// que cambie el mensaje de estado segun los eventos |
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// de tareas que se est?n realizando |
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return "Difference Geoprocess..."; |
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} |
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public String getNote() {
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// FIXME Cambiar esto por un mecanismo de eventos, |
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// de forma que la tarea lo que tenga sea un escuchador |
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// que cambie el mensaje de estado segun los eventos |
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// de tareas que se est?n realizando |
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return DIFFERENCE_MESSAGE + getCurrentStep() + "of " + getFinishStep(); |
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} |
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public void cancel() {
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((DefaultCancellableMonitorable) cancelMonitor).setCanceled(true); |
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} |
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public void run() throws GeoprocessException {
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try {
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//FIXME Sacar esto de aqu? y ponerlo fuera. Marcaremos como precondicion |
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//que el esquema del geoproceso haya sido creado |
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// Prepare the result |
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schemaManager.createOrAlterSchema(createLayerDefinition()); |
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writer.preProcess(); |
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Strategy strategy = |
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StrategyManager.getStrategy(firstLayer); |
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FeaturePersisterProcessor2 featureProcessor = |
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new FeaturePersisterProcessor2(writer); |
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Strategy overlayStrategy = |
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StrategyManager.getStrategy(overlayLayer); |
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DifferenceVisitor visitor = new DifferenceVisitor(overlayLayer, |
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featureProcessor, overlayStrategy, onlyClipLayerSelection); |
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if (onlyFirstLayerSelection) {
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strategy.process(visitor, firstLayer.getRecordset() |
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.getSelection(), cancelMonitor); |
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} else {
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strategy.process(visitor, cancelMonitor); |
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} |
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} catch (EditionException e) {
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throw new GeoprocessException( |
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"Error al crear el esquema/fichero de la nueva capa"); |
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} catch (DriverException e) {
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throw new GeoprocessException( |
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"Error de driver al calcular el geoproceso interseccion"); |
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} catch (com.iver.cit.gvsig.fmap.DriverException e) {
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throw new GeoprocessException( |
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"Error de driver al calcular el geoproceso interseccion"); |
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} catch (VisitException e) {
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throw new GeoprocessException( |
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"Error al procesar el feature de una capa durante el geoproceso interseccion"); |
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}finally{
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finished = true; |
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} |
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} |
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public boolean isDefined() {
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return cancelMonitor.isDeterminatedProcess(); |
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} |
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public boolean isCanceled() {
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return cancelMonitor.isCanceled(); |
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} |
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public boolean isFinished() {
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return finished; |
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} |
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} |
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} |
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