svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_data / src / org / gvsig / fmap / data / feature / joinstore / JoinFeatureStore.java @ 23688
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2008 IVER T.I {{Task}}
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*/
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/**
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*
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*/
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package org.gvsig.fmap.data.feature.joinstore; |
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import java.lang.ref.WeakReference; |
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import java.util.ArrayList; |
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import java.util.ConcurrentModificationException; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import java.util.Map; |
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import org.gvsig.fmap.data.CloseException; |
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import org.gvsig.fmap.data.DataCollection; |
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import org.gvsig.fmap.data.DataException; |
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import org.gvsig.fmap.data.DataExplorer; |
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import org.gvsig.fmap.data.DataManager; |
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import org.gvsig.fmap.data.DataStoreParameters; |
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import org.gvsig.fmap.data.InitializeException; |
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import org.gvsig.fmap.data.OpenException; |
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import org.gvsig.fmap.data.ReadException; |
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import org.gvsig.fmap.data.WriteException; |
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import org.gvsig.fmap.data.feature.AbstractFeatureStore; |
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import org.gvsig.fmap.data.feature.Feature; |
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import org.gvsig.fmap.data.feature.FeatureCollection; |
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import org.gvsig.fmap.data.feature.FeatureID; |
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import org.gvsig.fmap.data.feature.FeatureStore; |
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import org.gvsig.fmap.data.feature.FeatureType; |
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import org.gvsig.fmap.data.feature.IsNotAttributeSettingException; |
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import org.gvsig.fmap.data.index.Index; |
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import org.gvsig.fmap.data.index.IndexException; |
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import org.gvsig.metadata.IMetadata; |
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import org.gvsig.tools.exception.BaseException; |
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import org.gvsig.tools.observer.Observable; |
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import org.gvsig.tools.observer.Observer; |
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/**
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* @author jmvivo
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*
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*/
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public class JoinFeatureStore extends AbstractFeatureStore{ |
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public static String DATASTORE_NAME="JoinFeatureStore"; |
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private FeatureStore storePrimary;
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private FeatureStore storeSecondary;
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// private String linkFieldSecondary=null;
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// private List featuresList = null;
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private boolean changed = false; |
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private Map mapValues = null; |
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protected JoinFeatureStoreParameters getJoinParameters(){
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return (JoinFeatureStoreParameters)this.parameters; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.feature.FeatureStore#canAlterFeatureType()
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*/
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public boolean canAlterFeatureType() { |
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return false; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.feature.AbstractFeatureStore#doFinishEdition()
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*/
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protected void doFinishEdition() throws WriteException, ReadException { |
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throw new WriteException("UnsupportedOperation", "JoinFeatureStore"); |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.feature.FeatureStore#getDataCollection(org.gvsig.fmap.data.feature.FeatureType, java.lang.String, java.lang.String)
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*/
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public DataCollection getDataCollection(FeatureType type, String filter, String order) throws ReadException { |
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// JoinFeatureCollection complexDataCollection=new JoinFeatureCollection(this,type,filter,order);
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// return complexDataCollection;
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this.checkChanged();
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try {
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type = this.checkFeatureTypeForCollection(type);
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} catch (DataException e) {
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throw new ReadException(this.getName(), e); |
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} |
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if (!(type instanceof JoinFeatureType)) { |
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throw new ReadException("incompatible types", this.getName()); |
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} |
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FeatureCollection coll; |
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if (filter != null || order != null) { |
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coll = new JoinFeatureCollectionWithFeatureID(this, type, filter, |
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order); |
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} else {
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coll = new JoinFeatureCollection(this, type); |
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} |
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this.addObserver(new WeakReference(coll)); |
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return coll;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.feature.FeatureStore#getFeatureByID(org.gvsig.fmap.data.feature.FeatureID)
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*/
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public Feature getFeatureByID(FeatureID id,FeatureType featureType) throws ReadException { |
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this.checkChanged();
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return id.getFeature(featureType);
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.FeatureStore#doClose()
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*/
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protected void doClose() throws CloseException { |
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((AbstractFeatureStore)this.storePrimary).close();
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((AbstractFeatureStore)this.storeSecondary).close();
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.FeatureStore#doDispose()
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*/
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protected void doDispose() throws CloseException { |
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super.doDispose();
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this.storePrimary.dispose();
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this.storeSecondary.dispose();
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.DataStore#getExplorer()
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*/
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public DataExplorer getExplorer() throws ReadException { |
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return null; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.DataStore#getName()
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*/
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public String getName() { |
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return DATASTORE_NAME;
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.DataStore#isEditable()
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*/
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public boolean isEditable() { |
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return false; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.FeatureStore#doOpen()
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*/
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protected void doOpen() throws OpenException { |
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((AbstractFeatureStore)this.storePrimary).open();
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((AbstractFeatureStore)this.storeSecondary).open();
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} |
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/* (non-Javadoc)
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* @see org.gvsig.metadata.IMetadatable#getMetadata()
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*/
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public IMetadata getMetadata() throws BaseException { |
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IMetadata md=getPrimaryStore().getMetadata(); |
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JoinAttributeDescriptor geomAttr = ((JoinFeatureType) this
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.getDefaultFeatureType()).getDefaultGeometryAttribute(); |
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if (geomAttr != null) { |
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FeatureStore geomStore; |
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if (geomAttr.isFromSecondarySource()) {
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geomStore = this.getSecondaryStore();
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} else {
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geomStore = this.getPrimaryStore();
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} |
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if (geomStore.getDefaultFeatureType().getDefaultGeometry().equals(
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geomAttr.getOriginalName())) {
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IMetadata omd = geomStore.getMetadata(); |
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md.set("extent", omd.get("extent")); |
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md.set("srs", omd.get("srs")); |
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} else {
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//TODO
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} |
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md.set("primaryStoreMetada", this.getPrimaryStore().getMetadata()); |
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md.set("secondaryStoreMetada", this.getSecondaryStore() |
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.getMetadata()); |
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} |
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return md;
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} |
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protected void initFeatureType() throws InitializeException { |
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JoinFeatureStoreParameters jParams = this.getJoinParameters();
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JoinFeatureType fType = new JoinFeatureType();
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if (jParams.getFieldsStorePrimary() != null |
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&& jParams.getFieldsStorePrimary().length > 0) {
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try {
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fType.loadPrimaryStoreFeatureType( |
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this.storePrimary.getDefaultFeatureType().getSubFeatureType(
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jParams.getFieldsStorePrimary())); |
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} catch (DataException e) {
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throw new InitializeException(this.getName(), e); |
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} |
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} else {
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try {
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fType.loadPrimaryStoreFeatureType(this.storePrimary
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.getDefaultFeatureType()); |
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} catch (IsNotAttributeSettingException e) {
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throw new InitializeException(this.getName(), e); |
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} |
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} |
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String prefix = jParams.getFieldNamePrefix();
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if (jParams.getFieldsStoreSecondary() != null |
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&& jParams.getFieldsStoreSecondary().length > 0) {
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try {
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fType.loadSecondaryStoreFeatureType( |
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this.storeSecondary
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.getDefaultFeatureType().getSubFeatureType( |
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jParams.getFieldsStoreSecondary()), |
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prefix); |
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} catch (DataException e) {
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throw new InitializeException(this.getName(), e); |
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} |
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} else {
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try {
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fType.loadSecondaryStoreFeatureType(this.storeSecondary
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.getDefaultFeatureType(), prefix); |
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} catch (IsNotAttributeSettingException e) {
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throw new InitializeException(this.getName(), e); |
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} |
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} |
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if (this.storePrimary.getDefaultFeatureType().getFieldIndex( |
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jParams.getLinkFieldPrimary()) < 0) {
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throw new InitializeException("Primary link field not found: " +jParams.getLinkFieldPrimary(),this.getName()); |
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} |
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if (this.storeSecondary.getDefaultFeatureType().getFieldIndex( |
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jParams.getLinkFieldSecondary()) < 0) {
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throw new InitializeException("Secondary link field not found: " +jParams.getLinkFieldSecondary(),this.getName()); |
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} |
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String defGeometry = jParams.getDefaultGeometry();
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if (defGeometry != null && defGeometry.length() > 0) { |
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if (fType.getFieldIndex(defGeometry) >= 0) { |
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fType.setDefaultGeometry(defGeometry); |
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fType |
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.setDefaultGeometryAttribute((JoinAttributeDescriptor) fType |
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.get(defGeometry)); |
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} else if (fType.getFieldIndex(prefix + defGeometry) >= 0) { |
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fType.setDefaultGeometry(prefix + defGeometry); |
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fType |
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.setDefaultGeometryAttribute((JoinAttributeDescriptor) fType |
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.get(prefix + defGeometry)); |
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} else {
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throw new InitializeException("Default geometry field not found: " +defGeometry,this.getName()); |
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} |
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} |
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this.defaultFeatureType = fType;
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this.featureTypes = new ArrayList(); |
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this.featureTypes.add(defaultFeatureType);
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} |
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public void init(DataStoreParameters parameters) throws InitializeException { |
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super.init(parameters);
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if (!(this.parameters instanceof JoinFeatureStoreParameters)) { |
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throw new InitializeException("Wrong parameters", this.getName()); |
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} |
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JoinFeatureStoreParameters jParams = this.getJoinParameters();
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DataManager dataManager = DataManager.getManager(); |
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this.storePrimary = (FeatureStore) dataManager.createDataStore(jParams
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.getStorePrimary()); |
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this.storeSecondary = (FeatureStore) dataManager
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.createDataStore(jParams.getStoreSecondary()); |
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this.observeStore(this.storePrimary); |
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this.observeStore(this.storeSecondary); |
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this.initFeatureType();
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this.changed = false; |
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} |
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/* (non-Javadoc)
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* @see org.gvsig.fmap.data.DataStore#refresh()
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*/
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protected void doRefresh() throws OpenException,InitializeException { |
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this.clearResourceObservers();
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this.storePrimary.refresh();
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this.storeSecondary.refresh();
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this.mapValues = null; |
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this.observeStore(this.storePrimary); |
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this.observeStore(this.storeSecondary); |
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this.initFeatureType();
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this.changed = false; |
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} |
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/**
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* @deprecated
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*/
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public boolean canWriteGeometry(int gvSIGgeometryType) { |
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return false; |
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} |
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protected FeatureStore getPrimaryStore() {
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return storePrimary;
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} |
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protected FeatureStore getSecondaryStore() {
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return storeSecondary;
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} |
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protected final void observeStore(FeatureStore store) { |
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StoreResourceChangedObserver observer = new StoreResourceChangedObserver(
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this);
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store.addObserver(observer); |
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this.resouceObservers.add(observer);
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} |
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private class StoreResourceChangedObserver implements Observer { |
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private JoinFeatureStore joinFeatureStore = null; |
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public StoreResourceChangedObserver(JoinFeatureStore joinFeatureStore) {
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this.joinFeatureStore = joinFeatureStore;
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} |
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public void update(Observable observable, Object notification) { |
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this.joinFeatureStore.changed = true; |
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} |
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} |
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protected void checkChanged() { |
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if (this.changed) { |
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throw new ConcurrentModificationException( |
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"Source Stores was changed");
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} |
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} |
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public Index createIndex(FeatureType type, String colName) |
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throws IndexException {
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throw new UnsupportedOperationException(); |
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} |
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protected Feature getFeatureFromPrimary(Feature primaryFeature,
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FeatureType fType) |
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throws ReadException {
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if (fType == null) { |
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fType = this.getDefaultFeatureType();
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} else {
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if (!fType.isSubtypeOf(this.defaultFeatureType)) { |
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throw new ReadException("type error", this.getName()); |
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} else if (!(fType instanceof JoinFeatureType)) { |
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throw new ReadException("type error", this.getName()); |
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} |
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} |
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JoinFeatureStoreParameters jparams = this.getJoinParameters();
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Object key = primaryFeature.get(jparams.getLinkFieldPrimary());
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Feature secondaryFeature = (Feature) this.getMapOfSecondaryValues()
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.get(key); |
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return new JoinFeature(this, (JoinFeatureType) fType, primaryFeature, |
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secondaryFeature); |
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} |
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private Map getMapOfSecondaryValues() throws ReadException { |
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if (this.mapValues == null) { |
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JoinFeatureStoreParameters jParams = this.getJoinParameters();
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Map mapValues = new HashMap(); |
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FeatureType sFType =((JoinFeatureType)this.defaultFeatureType).getSecondaryFeatureType();
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int keyIndex = sFType
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.getFieldIndex(jParams.getLinkFieldSecondary()); |
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FeatureCollection fc = (FeatureCollection) this.getSecondaryStore().getDataCollection(
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sFType, null, null); |
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Iterator iter = fc.iterator();
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Object key;
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Feature feature; |
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while (iter.hasNext()) {
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feature = (Feature) iter.next(); |
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key = feature.get(keyIndex); |
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if (!mapValues.containsKey(key)) {
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mapValues.put(key, feature); |
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} |
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} |
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fc.dispose(); |
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fc = null;
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this.mapValues = mapValues;
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} |
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return this.mapValues; |
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} |
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// public DataCollection getSelection() {
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// this.selection = createSelection();
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// this.setSelectionObserver();
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// return selection;
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// }
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} |
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