gvsig-projects-pool / org.gvsig.topology / trunk / org.gvsig.topology / org.gvsig.topology.lib / org.gvsig.topology.lib.impl / src / main / java / org / gvsig / topology / lib / impl / DefaultTopologyDataSet.java @ 894
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.topology.lib.impl; |
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import java.util.Iterator; |
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import java.util.Map; |
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import org.apache.commons.collections.IteratorUtils; |
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import org.apache.commons.lang3.StringUtils; |
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import org.apache.commons.lang3.mutable.MutableObject; |
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import org.gvsig.expressionevaluator.Expression; |
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import org.gvsig.expressionevaluator.ExpressionBuilder; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator; |
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import org.gvsig.expressionevaluator.ExpressionEvaluatorManager; |
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import org.gvsig.fmap.dal.DataStore; |
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import org.gvsig.fmap.dal.EditingNotification; |
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import org.gvsig.fmap.dal.EditingNotificationManager; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.EditableFeature; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureAttributeDescriptor; |
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import org.gvsig.fmap.dal.feature.FeatureReference; |
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import org.gvsig.fmap.dal.feature.FeatureSet; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureStoreProviderFactory; |
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import org.gvsig.fmap.dal.feature.FeatureType; |
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import org.gvsig.fmap.dal.swing.DALSwingLocator; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.GeometryUtils; |
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import org.gvsig.fmap.geom.SpatialIndex; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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import org.gvsig.tools.dispose.DisposableIterator; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.util.PropertiesSupportHelper; |
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import org.gvsig.tools.visitor.VisitCanceledException; |
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import org.gvsig.tools.visitor.Visitor; |
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import org.gvsig.topology.lib.api.CancelOperationException; |
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import org.gvsig.topology.lib.api.PerformOperationException; |
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import org.gvsig.topology.lib.api.TopologyDataSet; |
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import org.gvsig.topology.lib.api.TopologyLocator; |
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import org.gvsig.topology.lib.api.TopologyManager; |
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import org.json.JSONObject; |
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import org.gvsig.topology.lib.api.TopologyServices; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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*
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* @author jjdelcerro
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*/
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@SuppressWarnings({"EqualsAndHashcode","UseSpecificCatch"}) |
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public class DefaultTopologyDataSet implements TopologyDataSet { |
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private final static Logger LOGGER = LoggerFactory.getLogger(DefaultTopologyDataSet.class); |
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private TopologyServices services;
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private String name; |
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private DataStore store;
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private boolean needFinishEditing; |
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private String fullName; |
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private PropertiesSupportHelper propertiesHelper;
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private MutableObject<SpatialIndex> spatialIndex = null; |
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public DefaultTopologyDataSet() {
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this.services = null; |
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this.name = null; |
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this.store = null; |
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this.needFinishEditing = false; |
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this.fullName = null; |
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this.propertiesHelper = new PropertiesSupportHelper(); |
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} |
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public DefaultTopologyDataSet(TopologyServices services, String name, DataStore store) { |
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this.services = services;
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this.name = name;
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this.store = store;
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this.needFinishEditing = false; |
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if( store!=null ) { |
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this.fullName = store.getFullName();
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} |
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} |
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@Override
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public void restart() { |
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this.store = null; |
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this.spatialIndex = null; |
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} |
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@Override
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public boolean equals(Object obj) { |
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if( !(obj instanceof DefaultTopologyDataSet) ) { |
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return false; |
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} |
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DefaultTopologyDataSet other = (DefaultTopologyDataSet)obj; |
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if( this.store != other.store ) { |
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return false; |
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} |
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if( !StringUtils.equals(this.getName(), other.getName()) ) { |
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return false; |
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} |
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return true; |
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} |
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@Override
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public String getName() { |
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return this.name; |
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} |
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@Override
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public void setName(String name) { |
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this.name = name;
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} |
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@Override
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public String toString() { |
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try {
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FeatureAttributeDescriptor attr = this.getFeatureStore().getDefaultFeatureType().getDefaultGeometryAttribute();
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String geomType = attr.getGeomType().getName();
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return this.name + " ("+ geomType + ")"; |
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} catch(Exception ex) { |
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return this.name ; |
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} |
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} |
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@Override
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public DataStore getStore() {
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if (this.store == null) { |
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this.store = this.services.getFeatureStore(this); |
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} |
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return this.store; |
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} |
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@Override
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public FeatureStore getFeatureStore() {
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if (this.store == null) { |
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this.store = this.services.getFeatureStore(this); |
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} |
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return (FeatureStore) this.store; |
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} |
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@Override
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public long getSize() { |
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try {
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long size = this.getFeatureStore().getFeatureCount(); |
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return size;
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} catch (DataException ex) {
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// TODO: mensage al log
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return 0; |
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} |
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} |
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@Override
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public boolean isThisStore(FeatureStore store) { |
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if( store == null ) { |
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return false; |
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} |
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return StringUtils.equals(this.fullName, store.getFullName()); |
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} |
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@Override
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public int getGeometryType() { |
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try {
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FeatureStore theStore = this.getFeatureStore();
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FeatureType featureType = theStore.getDefaultFeatureType(); |
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FeatureAttributeDescriptor attr = featureType.getDefaultGeometryAttribute(); |
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GeometryType geomType = attr.getGeomType(); |
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return geomType.getType();
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} catch (Exception ex) { |
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return Geometry.TYPES.GEOMETRY;
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} |
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} |
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@Override
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public void accept(Visitor visitor) throws VisitCanceledException { |
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FeatureStore st = this.getFeatureStore();
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try {
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st.accept(visitor); |
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} catch(VisitCanceledException ex) {
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throw ex;
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} catch(BaseException ex) {
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throw new RuntimeException(ex); |
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} |
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} |
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@Override
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public void edit() throws DataException { |
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FeatureStore theStore = this.getFeatureStore();
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if (!theStore.isEditing()) {
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theStore.edit(); |
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this.needFinishEditing = true; |
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} |
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} |
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@Override
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public void finishEditing() throws DataException { |
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if (this.needFinishEditing) { |
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this.getFeatureStore().finishEditing();
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} |
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} |
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@Override
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public EditableFeature createNewFeature() throws DataException { |
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EditableFeature f = this.getFeatureStore().createNewFeature();
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return f;
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} |
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public void perform( |
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String operation,
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Feature feature |
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) throws DataException {
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this.edit();
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EditingNotificationManager editingNotificationManager |
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= DALSwingLocator.getEditingNotificationManager(); |
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FeatureStore theStore = this.getFeatureStore();
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EditingNotification notification |
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= editingNotificationManager.notifyObservers(this, // source |
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operation, // type
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null,// document |
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null,// layer |
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theStore,// store
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feature// feature
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); |
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if (notification.isCanceled()) {
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String msg = String.format( |
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"Can't insert feature into %1$s, canceled by some observer.",
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this.getName());
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throw new CancelOperationException(msg); |
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} |
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String after = null; |
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if( operation.equalsIgnoreCase(EditingNotification.BEFORE_REMOVE_FEATURE) ) {
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theStore.delete(feature); |
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after = EditingNotification.AFTER_REMOVE_FEATURE; |
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} else {
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if (notification.shouldValidateTheFeature()) {
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if (!editingNotificationManager.validateFeature(feature)) {
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String msg = String.format("%1$s is not valid", feature.toString()); |
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throw new PerformOperationException(msg); |
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} |
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} |
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switch(operation) {
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case EditingNotification.BEFORE_UPDATE_FEATURE:
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theStore.update((EditableFeature) feature); |
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after = EditingNotification.AFTER_UPDATE_FEATURE; |
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break;
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case EditingNotification.BEFORE_INSERT_FEATURE:
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theStore.insert((EditableFeature) feature); |
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after = EditingNotification.AFTER_INSERT_FEATURE; |
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break;
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} |
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} |
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editingNotificationManager.notifyObservers(this,
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after, null, null, |
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theStore, feature); |
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} |
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@Override
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public void insert(final EditableFeature feature) throws DataException { |
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perform( |
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EditingNotification.BEFORE_INSERT_FEATURE, |
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feature |
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); |
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} |
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|
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@Override
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public void update(final EditableFeature feature) throws DataException { |
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perform( |
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EditingNotification.BEFORE_UPDATE_FEATURE, |
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feature |
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); |
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} |
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|
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@Override
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public void delete(final Feature feature) throws DataException { |
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perform( |
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EditingNotification.BEFORE_REMOVE_FEATURE, |
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feature |
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); |
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} |
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|
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@Override
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public void delete(final FeatureReference feature) throws DataException { |
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perform( |
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EditingNotification.BEFORE_REMOVE_FEATURE, |
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feature.getFeature() |
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); |
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} |
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|
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@Override
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public JSONObject toJSON() {
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JSONObject jsonDataSet = new JSONObject();
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jsonDataSet.put("name", this.name); |
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jsonDataSet.put("fullName", this.fullName); |
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return jsonDataSet;
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} |
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|
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@Override
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public void fromJSON(String json) { |
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this.fromJSON(new JSONObject(json)); |
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} |
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|
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@Override
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public void fromJSON(JSONObject json) { |
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TopologyManager manager = TopologyLocator.getTopologyManager(); |
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this.name = json.getString("name"); |
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this.fullName = null; |
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if( json.has("fullName") ) { |
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this.fullName = json.getString("fullName"); |
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} |
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this.store = null; |
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this.needFinishEditing = false; |
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this.services = manager.getDefaultServices();
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} |
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|
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@Override
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public Object getProperty(String string) { |
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return this.propertiesHelper.getProperty(name); |
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} |
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|
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@Override
|
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public void setProperty(String string, Object o) { |
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this.propertiesHelper.setProperty(name, o);
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} |
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|
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@Override
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public Map<String, Object> getProperties() { |
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return this.propertiesHelper.getProperties(); |
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} |
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|
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@Override
|
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public SpatialIndex getSpatialIndex() {
|
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if( this.spatialIndex == null ) { |
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this.spatialIndex = new MutableObject<>(); |
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FeatureStore theStore = this.getFeatureStore();
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FeatureStoreProviderFactory storeFactory = (FeatureStoreProviderFactory) theStore.getProviderFactory(); |
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if( storeFactory.useLocalIndexesCanImprovePerformance()==FeatureStoreProviderFactory.YES ) {
|
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try {
|
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GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
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final SpatialIndex geomIndex = geomManager.createSpatialIndex(
|
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GeometryManager.SPATIALINDEX_DEFAULT_QUADTREE, |
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null
|
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); |
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final SpatialIndex dataIndex = theStore.wrapSpatialIndex(geomIndex);
|
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try {
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store.accept(new Visitor() {
|
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@Override
|
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public void visit(Object o) throws VisitCanceledException, BaseException { |
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Feature f = (Feature) o; |
379 |
Geometry geom = f.getDefaultGeometry(); |
380 |
if (geom != null) { |
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dataIndex.insert(geom, f); |
382 |
} |
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} |
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}); |
385 |
} catch (VisitCanceledException ex) {
|
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} |
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this.spatialIndex.setValue(dataIndex);
|
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} catch (Exception ex) { |
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LOGGER.warn("Can't create spatial index", ex);
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} |
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} |
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} |
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return this.spatialIndex.getValue(); |
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} |
395 |
|
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@Override
|
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public Iterable<FeatureReference> query(Geometry geom) { |
398 |
return this.queryReferences(geom); |
399 |
} |
400 |
|
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@Override
|
402 |
public Iterable<FeatureReference> queryReferences(Geometry geom) { |
403 |
SpatialIndex index = this.getSpatialIndex();
|
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if( index == null ) { |
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try {
|
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FeatureStore theStore = (FeatureStore) this.getStore();
|
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ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
408 |
Expression expression = manager.createExpression();
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ExpressionBuilder expressionBuilder = manager.createExpressionBuilder(); |
410 |
String geomName = theStore.getDefaultFeatureType().getDefaultGeometryAttributeName();
|
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if( GeometryUtils.isSubtype(Geometry.TYPES.POINT, geom.getType()) ) {
|
412 |
expression.setPhrase( |
413 |
expressionBuilder.ifnull( |
414 |
expressionBuilder.column(geomName), |
415 |
expressionBuilder.constant(false),
|
416 |
expressionBuilder.ST_Intersects( |
417 |
expressionBuilder.column(geomName), |
418 |
expressionBuilder.geometry(geom) |
419 |
) |
420 |
).toString() |
421 |
); |
422 |
} else {
|
423 |
expression.setPhrase( |
424 |
expressionBuilder.ifnull( |
425 |
expressionBuilder.column(geomName), |
426 |
expressionBuilder.constant(false),
|
427 |
expressionBuilder.ST_Overlaps( |
428 |
expressionBuilder.column(geomName), |
429 |
expressionBuilder.envelope(geom.getEnvelope()) |
430 |
) |
431 |
).toString() |
432 |
); |
433 |
} |
434 |
FeatureSet set = theStore.getFeatureSet(expression); |
435 |
final DisposableIterator it = set.fastIterator();
|
436 |
return new Iterable<FeatureReference>() { |
437 |
@Override
|
438 |
public Iterator<FeatureReference> iterator() { |
439 |
return new Iterator<FeatureReference>() { |
440 |
@Override
|
441 |
public boolean hasNext() { |
442 |
return it.hasNext();
|
443 |
} |
444 |
|
445 |
@Override
|
446 |
public FeatureReference next() {
|
447 |
Feature f = (Feature) it.next(); |
448 |
return f.getReference();
|
449 |
} |
450 |
}; |
451 |
} |
452 |
}; |
453 |
|
454 |
} catch(Exception ex) { |
455 |
return (Iterable<FeatureReference>) IteratorUtils.EMPTY_ITERATOR; |
456 |
} |
457 |
} |
458 |
final Iterator it = index.query(geom); |
459 |
if( it == null ) { |
460 |
return (Iterable<FeatureReference>) IteratorUtils.EMPTY_ITERATOR; |
461 |
} |
462 |
return new Iterable<FeatureReference>() { |
463 |
@Override
|
464 |
public Iterator<FeatureReference> iterator() { |
465 |
return it;
|
466 |
} |
467 |
}; |
468 |
} |
469 |
|
470 |
@Override
|
471 |
public Iterable<Feature> queryFeatures(Geometry geom) { |
472 |
SpatialIndex index = this.getSpatialIndex();
|
473 |
if( index == null ) { |
474 |
try {
|
475 |
FeatureStore theStore = (FeatureStore) this.getStore();
|
476 |
ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager(); |
477 |
Expression expression = manager.createExpression();
|
478 |
ExpressionBuilder expressionBuilder = manager.createExpressionBuilder(); |
479 |
String geomName = theStore.getDefaultFeatureType().getDefaultGeometryAttributeName();
|
480 |
if( GeometryUtils.isSubtype(Geometry.TYPES.POINT, geom.getType()) ) {
|
481 |
expression.setPhrase( |
482 |
expressionBuilder.ifnull( |
483 |
expressionBuilder.column(geomName), |
484 |
expressionBuilder.constant(false),
|
485 |
expressionBuilder.ST_Intersects( |
486 |
expressionBuilder.column(geomName), |
487 |
expressionBuilder.geometry(geom) |
488 |
) |
489 |
).toString() |
490 |
); |
491 |
} else {
|
492 |
expression.setPhrase( |
493 |
expressionBuilder.ifnull( |
494 |
expressionBuilder.column(geomName), |
495 |
expressionBuilder.constant(false),
|
496 |
expressionBuilder.ST_Overlaps( |
497 |
expressionBuilder.column(geomName), |
498 |
expressionBuilder.envelope(geom.getEnvelope()) |
499 |
) |
500 |
).toString() |
501 |
); |
502 |
} |
503 |
FeatureSet set = theStore.getFeatureSet(expression); |
504 |
final DisposableIterator it = set.fastIterator();
|
505 |
return new Iterable<Feature>() { |
506 |
@Override
|
507 |
public Iterator<Feature> iterator() { |
508 |
return it;
|
509 |
} |
510 |
}; |
511 |
|
512 |
} catch(Exception ex) { |
513 |
return (Iterable<Feature>) IteratorUtils.EMPTY_ITERATOR; |
514 |
} |
515 |
} |
516 |
final Iterator it = index.query(geom); |
517 |
if( it == null ) { |
518 |
return (Iterable<Feature>) IteratorUtils.EMPTY_ITERATOR; |
519 |
} |
520 |
return new Iterable<Feature>() { |
521 |
@Override
|
522 |
public Iterator<Feature> iterator() { |
523 |
return new Iterator<Feature>() { |
524 |
@Override
|
525 |
public boolean hasNext() { |
526 |
return it.hasNext();
|
527 |
} |
528 |
|
529 |
@Override
|
530 |
public Feature next() {
|
531 |
FeatureReference ref = (FeatureReference) it.next(); |
532 |
try {
|
533 |
return ref.getFeature();
|
534 |
} catch (DataException ex) {
|
535 |
return null; |
536 |
} |
537 |
} |
538 |
}; |
539 |
} |
540 |
}; |
541 |
} |
542 |
|
543 |
@Override
|
544 |
public Feature findFirst(Expression filter) { |
545 |
try {
|
546 |
return this.getFeatureStore().findFirst(filter); |
547 |
} catch (Exception ex) { |
548 |
return null; |
549 |
} |
550 |
} |
551 |
|
552 |
} |