/**
* Analyzes the feature list, take the features that are neighbour and if they meet the
* requirements, add a vertex to them.
*
* @return The builder instance.
* @throws SplitFeatureBuilderFailException
*/
public SplitFeatureBuilder buildNeighbours() throws SplitFeatureBuilderFailException {
this.neighbourResultList = new ArrayList<SimpleFeature>();
try {
for (SimpleFeature feature : featureList) {
Geometry geom = (Geometry) feature.getDefaultGeometry();
CoordinateReferenceSystem featureCRS =
feature.getFeatureType().getCoordinateReferenceSystem();
geom = GeoToolsUtils.reproject(geom, featureCRS, desiredCRS);
if (!canSplit(geom) && (requireVertex(geom))) {
Geometry geomWithAddedVertex = addVertexToNeighbour(geom);
geomWithAddedVertex =
GeoToolsUtils.reproject(geomWithAddedVertex, desiredCRS, featureCRS);
feature.setDefaultGeometry(geomWithAddedVertex);
this.neighbourResultList.add(feature);
}
}
} catch (Exception e) {
throw makeFailException(e);
}
return this;
}
/**
* Analyze the feature list, and for those features that can suffer split operation, they'll be
* split.
*
* @return The builder instance.
* @throws SplitFeatureBuilderFailException if the operation fail
* @throws CannotSplitException if the split line cannot divide the feature's geometry
*/
public SplitFeatureBuilder buildSplit()
throws SplitFeatureBuilderFailException, CannotSplitException {
try {
this.splitResultList = new LinkedList<SimpleFeature>();
boolean existSplit = false;
for (SimpleFeature feature : this.featureList) {
Geometry geomToSplit = (Geometry) feature.getDefaultGeometry();
assert geomToSplit.isValid() : "No Valid Geometry: " + geomToSplit.toText(); // $NON-NLS-1$
CoordinateReferenceSystem featureCrs =
feature.getFeatureType().getCoordinateReferenceSystem();
geomToSplit = GeoToolsUtils.reproject(geomToSplit, featureCrs, this.desiredCRS);
if (canSplit(geomToSplit)) {
existSplit = true;
this.featuresThatSufferedSplit.add(feature);
List<Geometry> splitGeometriesResult = split(geomToSplit);
this.splitResultList.addAll(createSplitFeatures(splitGeometriesResult, feature));
}
}
if (!existSplit) {
throw new CannotSplitException("The split line cannot split any features"); // $NON-NLS-1$
}
} catch (OperationNotFoundException e) {
throw makeFailException(e);
} catch (TransformException e) {
throw makeFailException(e);
}
return this;
}
/**
* Creates the resultant features.
*
* @param splitGeometries List with the new geometries.
* @param feature The old feature.
* @throws OperationNotFoundException
* @throws TransformException
*/
private List<SimpleFeature> createSplitFeatures(
final List<Geometry> splitGeometries, final SimpleFeature feature)
throws OperationNotFoundException, TransformException {
final SimpleFeatureType featureType = feature.getFeatureType();
final CoordinateReferenceSystem featureCrs = featureType.getCoordinateReferenceSystem();
Class<? extends Geometry> geometryType =
(Class<? extends Geometry>) featureType.getGeometryDescriptor().getType().getBinding();
List<SimpleFeature> splitFeatureList = new LinkedList<SimpleFeature>();
for (Geometry splittedPart : splitGeometries) {
splittedPart = GeoToolsUtils.reproject(splittedPart, desiredCRS, featureCrs);
splittedPart = GeometryUtil.adapt(splittedPart, geometryType);
SimpleFeature newFeature = DataUtilities.template(featureType);
GeoToolsUtils.copyAttributes(feature, newFeature);
newFeature.setDefaultGeometry(splittedPart);
splitFeatureList.add(newFeature);
}
return splitFeatureList;
}
/**
* Create a new instance of the builder giving the split line, the feature list and the CRS which
* the operation will be based on.
*
* @param featureList A non empty list of features.
* @param splitLine The split line.
* @param desiredCRS the crs where the split operation is done it
* @return a new instance of the builder.
*/
public static SplitFeatureBuilder newInstance(
final List<SimpleFeature> featureList,
final LineString splitLine,
final CoordinateReferenceSystem desiredCRS)
throws SplitFeatureBuilderFailException {
if (featureList == null)
throw new NullPointerException("The source feature list is required"); // $NON-NLS-1$
if (splitLine == null)
throw new NullPointerException("The split line is required"); // $NON-NLS-1$
if (desiredCRS == null)
throw new NullPointerException("The desired crs is required, i.e: map crs"); // $NON-NLS-1$
if (!(splitLine.getUserData() instanceof CoordinateReferenceSystem))
throw new IllegalArgumentException(
"Set the crs of the line before calling newInstance (splitLine.setUserData(CoordinateReferenceSystem))"); //$NON-NLS-1$
LOGGER.fine("featureList parameter:" + prettyPrint(featureList)); // $NON-NLS-1$
LOGGER.fine("splitLine parameter:" + splitLine.toText()); // $NON-NLS-1$
LOGGER.fine(((CoordinateReferenceSystem) splitLine.getUserData()).toWKT());
try {
LineString splitReprojected =
(LineString)
GeoToolsUtils.reproject(
splitLine, (CoordinateReferenceSystem) splitLine.getUserData(), desiredCRS);
SplitFeatureBuilder sfb = new SplitFeatureBuilder();
sfb.splitLine = splitReprojected;
sfb.splitStrategy = new SplitStrategy(splitLine);
sfb.splitResultList = null;
sfb.originalGeometryList = new LinkedList<Geometry>();
sfb.featuresThatSufferedSplit = new LinkedList<SimpleFeature>();
sfb.featureList = featureList;
sfb.desiredCRS = desiredCRS;
return sfb;
} catch (Exception e) {
throw makeFailException(e);
}
}