svn-gvsig-desktop / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / drivers / gml / GMLFeaturesIterator.java @ 6433
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package com.iver.cit.gvsig.fmap.drivers.gml; |
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import java.awt.geom.Point2D; |
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import java.io.IOException; |
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import java.util.ArrayList; |
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import java.util.Date; |
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import java.util.NoSuchElementException; |
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import java.util.Vector; |
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import org.cresques.cts.ICoordTrans; |
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import org.geotools.data.FeatureReader; |
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import org.geotools.feature.AttributeType; |
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import org.geotools.feature.Feature; |
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import org.geotools.feature.IllegalAttributeException; |
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import com.hardcode.gdbms.engine.values.Value; |
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import com.hardcode.gdbms.engine.values.ValueFactory; |
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import com.iver.cit.gvsig.fmap.DriverException; |
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import com.iver.cit.gvsig.fmap.core.DefaultFeature; |
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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.core.ShapeFactory; |
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import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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/* CVS MESSAGES:
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*
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* $Id: GMLFeaturesIterator.java 6433 2006-07-19 12:30:09Z jorpiell $
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* $Log$
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* Revision 1.1 2006-07-19 12:29:39 jorpiell
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* A?adido el driver de GML
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*
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*
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*/
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/**
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* @author Jorge Piera Llodr? (piera_jor@gva.es)
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*/
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public class GMLFeaturesIterator { |
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private FeatureReader featureReader = null; |
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private Vector featureVector = new Vector(); |
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private boolean parserException = false; |
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private boolean finished = false; |
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private int position = -1; |
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private int length = -2; |
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private ICoordTrans coordTrans;
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public GMLFeaturesIterator(FeatureReader featureReader){
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this.featureReader = featureReader;
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} |
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/**
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* Gets the next feature
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* @return
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* @throws DriverException
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*/
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public IFeature next() throws DriverException { |
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if (!finished){
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Feature feature = null;
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try {
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feature = featureReader.next(); |
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} catch (NoSuchElementException e) { |
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e.printStackTrace(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} catch (IllegalAttributeException e) {
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e.printStackTrace(); |
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} |
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Object[] attr = null; |
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attr = feature.getAttributes(attr); |
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Value[] values = getValues(attr);
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try{
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IGeometry g = ShapeFactory.createGeometry(FConverter.jts_to_java2d(feature.getDefaultGeometry())); |
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if (coordTrans != null){ |
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g.reProject(coordTrans); |
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} |
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IFeature outPutFeature = new DefaultFeature(g,values,feature.getID());
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featureVector.add(outPutFeature); |
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return outPutFeature;
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}catch (NullPointerException e){ |
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//The geometry can't be created
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} |
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}else{
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return (DefaultFeature)featureVector.get(position);
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} |
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return null; |
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} |
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/**
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* Returns if there is a new feature to retrieve
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* @return
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*/
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public boolean hasNext(){ |
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if (length == -2){ |
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try {
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if (featureReader.hasNext()){
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position++; |
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return true; |
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}else{
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featureReader.close(); |
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finished = true;
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length = featureVector.size() - 1;
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return false; |
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} |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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}else{
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if (position != length){
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position++; |
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return true; |
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}else{
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return false; |
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} |
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} |
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return false; |
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} |
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/**
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* Gets the attributes
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* @param attr
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* @return
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*/
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private Value[] getValues(Object[] attr) { |
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Value[] values = null; |
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if (attr.length - 1 > 0){ |
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values = new Value[attr.length - 1]; |
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}else{
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values = new Value[0]; |
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} |
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for (int i=1;i<attr.length;i++){ |
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if (attr[i]!=null){ |
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if (attr[i] instanceof Double){ |
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values[i-1]=ValueFactory.createValue(((Double)attr[i]).doubleValue()); |
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}else if (attr[i] instanceof String){ |
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values[i-1]=ValueFactory.createValue(String.valueOf(attr[i])); |
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}else if (attr[i] instanceof Long){ |
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values[i-1]=ValueFactory.createValue(((Long)attr[i]).longValue()); |
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}else if (attr[i] instanceof Integer){ |
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values[i-1]=ValueFactory.createValue(((Integer)attr[i]).intValue()); |
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}else if (attr[i] instanceof Float){ |
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values[i-1]=ValueFactory.createValue(((Float)attr[i]).floatValue()); |
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}else if (attr[i] instanceof Short){ |
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values[i-1]=ValueFactory.createValue(((Short)attr[i]).shortValue()); |
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}else if (attr[i] instanceof Boolean){ |
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values[i-1]=ValueFactory.createValue(((Boolean)attr[i]).booleanValue()); |
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}else if (attr[i] instanceof Date){ |
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values[i-1]=ValueFactory.createValue(((Date)attr[i])); |
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} |
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}else{
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values[i-1]=ValueFactory.createValue(""); |
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} |
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} |
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return values;
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.drivers.IFeatureIterator#closeIterator()
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*/
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public void closeIterator() throws DriverException { |
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// TODO Auto-generated method stub
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} |
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/**
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* This method must be executed before to start an iteration
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* process
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*/
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public void startIteration(){ |
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position = -1;
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} |
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/**
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* Reprojects the new point
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* @param ptOrig
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* Origin point
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* @return
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* FPoint2D
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*/
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private Point2D getReprojectedPoint(Point2D ptOrigin){ |
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Point2D ptDest = null; |
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return getCoordTrans().convert(ptOrigin, ptDest);
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} |
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/**
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* @return the coordTrans
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*/
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public ICoordTrans getCoordTrans() {
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return coordTrans;
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} |
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/**
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* @return Returns the parserException.
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*/
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public boolean isParserException() { |
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return parserException;
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} |
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/**
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* @param parserException The parserException to set.
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*/
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public void setParserException(boolean parserException) { |
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this.parserException = parserException;
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} |
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/**
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* Return the attributes type
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*
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*/
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public AttributeType[] getAttributeTypes(){ |
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try{
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return featureReader.getFeatureType().getAttributeTypes();
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}catch(NullPointerException e){ |
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return new AttributeType[0]; |
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} |
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} |
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/**
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* Returns the attributes name
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* @return
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*/
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public ArrayList getAttributeNames(){ |
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AttributeType[] attr = getAttributeTypes();
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ArrayList arrayFields = new ArrayList(); |
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for (int i=0 ; i<attr.length ; i++){ |
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if (!(GMLUtils.isGeometry(attr[i].getType()))){
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arrayFields.add(attr[i].getName()); |
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} |
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} |
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return arrayFields;
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} |
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} |