svn-gvsig-desktop / branches / Mobile_Compatible_Hito_1 / libFMap_mobile_shp_driver / src-file / org / gvsig / data / datastores / vectorial / file / shp_util / NewSHPDataCollection.java @ 21927
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package org.gvsig.data.datastores.vectorial.file.shp_util; |
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import java.io.IOException; |
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import java.util.Collection; |
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import java.util.Comparator; |
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import java.util.Iterator; |
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import java.util.TreeSet; |
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import org.apache.log4j.Logger; |
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import org.gvsig.data.DataCollection; |
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import org.gvsig.data.ReadException; |
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import org.gvsig.data.datastores.vectorial.file.shp_mem.simplify.MemoryShpDriver; |
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import org.gvsig.data.vectorial.Feature; |
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import org.gvsig.data.vectorial.FeatureType; |
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import org.gvsig.data.vectorial.expressionevaluator.FeatureComparator; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.util.observer.Observable; |
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import org.opengis.filter.Filter; |
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import org.opengis.filter.sort.SortBy; |
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public class NewSHPDataCollection implements DataCollection { |
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private static Logger logger = Logger.getLogger(NewSHPDataCollection.class); |
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private MemoryShpDriver shp_drv = null; |
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private DBFDataSource dbf_ds = null; |
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private FeatureType featureType = null; |
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private boolean onlyGeo = false; |
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private IGeometricDataStore store;
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private SortBy[] order; |
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protected Collection featureIDs; |
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private Filter filter; |
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public NewSHPDataCollection(IGeometricDataStore _store, MemoryShpDriver drv, DBFDataSource dbfds,
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FeatureType ft, boolean only_geo, Filter _filter, |
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SortBy[] _order) {
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shp_drv = drv; |
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dbf_ds = dbfds; |
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featureType = ft; |
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onlyGeo = only_geo; |
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order = _order; |
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filter = _filter; |
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store = _store; |
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if (order != null) { |
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initOrderIDs(); |
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} |
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} |
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private void initOrderIDs() { |
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Comparator comparator = new FeatureComparator(featureType, order); |
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featureIDs = new TreeSet(comparator); |
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Iterator iter = unsortedIterator();
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while (iter.hasNext()) {
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Feature feature = (Feature) iter.next(); |
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Object obj = feature.getID();
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featureIDs.add(obj); |
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} |
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} |
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public void dispose() { |
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// TODO Auto-generated method stub
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} |
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public int size() { |
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int count = 0; |
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Iterator iter = new SHPIterator(); |
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while (iter.hasNext()) {
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count++; |
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iter.next(); |
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} |
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return count;
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} |
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public boolean isEmpty() { |
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return (size() == 0); |
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} |
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public boolean contains(Object arg0) { |
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return false; |
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} |
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private Iterator unsortedIterator() { |
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return new SHPIterator(); |
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} |
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public Iterator iterator() { |
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if (order == null) { |
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return new SHPIterator(); |
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} else {
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return new SortedSHPIterator(); |
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} |
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} |
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public Object[] toArray() { |
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// TODO Auto-generated method stub
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return null; |
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} |
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public Object[] toArray(Object[] arg0) { |
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// TODO Auto-generated method stub
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return null; |
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} |
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public boolean add(Object arg0) { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public boolean remove(Object arg0) { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public boolean containsAll(Collection arg0) { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public boolean addAll(Collection arg0) { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public boolean removeAll(Collection arg0) { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public boolean retainAll(Collection arg0) { |
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// TODO Auto-generated method stub
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return false; |
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} |
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public void clear() { |
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// TODO Auto-generated method stub
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} |
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public void update(Observable observable, Object notification) { |
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// TODO Auto-generated method stub
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} |
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private class SHPIterator implements Iterator { |
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private int index = 0; |
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private int max_size = 0; |
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private NewSHPFeature nextFeat = null; |
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public SHPIterator() {
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max_size = shp_drv.getShapeCount(); |
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} |
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public boolean hasNext() { |
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while (index < max_size) {
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Geometry ig = null;
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try {
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ig = shp_drv.getShape(index); |
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} catch (IOException e) { |
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logger.debug("While getting geometry: " + e.getMessage());
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} |
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NewSHPFeature item = null;
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try {
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item = new NewSHPFeature(featureType, index, store);
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if (onlyGeo) {
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item.load(ig); |
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} else {
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item.load(dbf_ds, ig); |
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} |
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} catch (ReadException e) {
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logger.error("While loading feature: " + e.getMessage());
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} |
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index++; |
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if (filter == null) { |
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nextFeat = item; |
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return true; |
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} else {
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if (filter.evaluate(item)) {
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nextFeat = item; |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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public Object next() { |
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return nextFeat;
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} |
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public void remove() { |
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} |
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} |
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private class SortedSHPIterator implements Iterator { |
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private Iterator idIterator; |
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public SortedSHPIterator() {
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idIterator = featureIDs.iterator(); |
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} |
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public boolean hasNext() { |
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return idIterator.hasNext();
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} |
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public Object next() { |
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NewShpFeatureID item = (NewShpFeatureID) idIterator.next(); |
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int ind = item.getIndex();
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NewSHPFeature resp = null;
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try {
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Geometry ig = null;
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try {
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ig = shp_drv.getShape(ind); |
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} catch (IOException e) { |
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logger.debug("While getting geometry: " + e.getMessage());
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} |
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resp = new NewSHPFeature(featureType, ind, store);
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if (onlyGeo) {
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resp.load(ig); |
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} else {
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resp.load(dbf_ds, ig); |
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} |
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} catch (ReadException e) {
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logger.error("While loading feature: " + e.getMessage());
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} |
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return resp;
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} |
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public void remove() { |
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} |
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} |
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} |