svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_dataDB / src / org / gvsig / data / datastores / vectorial / db / jdbc / JDBCStore.java @ 20973
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package org.gvsig.data.datastores.vectorial.db.jdbc; |
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import java.security.KeyException; |
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import java.sql.Connection; |
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import java.sql.ResultSet; |
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import java.sql.Statement; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import org.gvsig.data.CloseException; |
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import org.gvsig.data.DataException; |
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import org.gvsig.data.IDataExplorer; |
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import org.gvsig.data.IDataStoreParameters; |
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import org.gvsig.data.InitializeException; |
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import org.gvsig.data.OpenException; |
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import org.gvsig.data.ReadException; |
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import org.gvsig.data.Resource; |
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import org.gvsig.data.ResourceManager; |
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import org.gvsig.data.WriteException; |
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import org.gvsig.data.commands.implementation.AttributeCommand; |
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import org.gvsig.data.commands.implementation.FeatureCommand; |
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import org.gvsig.data.commands.implementation.UpdateAttributeCommand; |
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import org.gvsig.data.commands.implementation.UpdateFeatureCommand; |
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import org.gvsig.data.datastores.vectorial.InitializeWriterException; |
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import org.gvsig.data.datastores.vectorial.db.DBFeatureID; |
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import org.gvsig.data.datastores.vectorial.db.DBFeatureType; |
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import org.gvsig.data.datastores.vectorial.db.DBStore; |
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import org.gvsig.data.datastores.vectorial.file.dbf.DBFStoreParameters; |
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import org.gvsig.data.vectorial.CreatedFeature; |
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import org.gvsig.data.vectorial.IFeature; |
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import org.gvsig.data.vectorial.IFeatureAttributeDescriptor; |
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import org.gvsig.data.vectorial.IFeatureID; |
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import org.gvsig.data.vectorial.IFeatureType; |
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import org.gvsig.metadata.IMetadata; |
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import org.gvsig.metadata.IMetadataManager; |
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import org.gvsig.metadata.MetadataManager; |
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public abstract class JDBCStore extends DBStore { |
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protected JDBCResource resource = null; |
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protected String sqlSelectPart; |
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protected String baseWhereClause = null; |
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protected String baseOrder = null; |
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protected String sqlSource = null; |
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protected boolean useSqlSource = false; |
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protected IMetadata metadata;
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public void init(IDataStoreParameters parameters) throws InitializeException { |
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JDBCResource tmpResource = this.createResource((JDBCStoreParameters)parameters);
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ResourceManager resMan = ResourceManager.getResourceManager(); |
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try {
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this.resource = (JDBCResource)resMan.addResource(tmpResource);
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} catch (DataException e1) {
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throw new InitializeException(this.getName(),e1); |
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} |
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super.init(parameters,this.resource); |
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this.initFeatureType();
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this.initSqlProperties();
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} |
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protected abstract JDBCResource createResource(JDBCStoreParameters params); |
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protected abstract void initFeatureType() throws InitializeException; |
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protected abstract void initSqlProperties() throws InitializeException; |
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/* (non-Javadoc)
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* @see org.gvsig.data.vectorial.FeatureStore#doClose()
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*/
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protected void doClose() throws CloseException { |
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this.resource.close();
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} |
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/* (non-Javadoc)
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* @see org.gvsig.data.vectorial.FeatureStore#doDispose()
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*/
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protected void doDispose() throws CloseException { |
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ResourceManager resMan = ResourceManager.getResourceManager(); |
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try {
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resMan.remove(this.resource);
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} catch (DataException e1) {
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throw new CloseException(this.getName(),e1); |
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} catch (KeyException e) { |
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// TODO Auto-generated catch block
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throw new CloseException(this.getName(),e); |
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} |
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this.metadata = null; |
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super.doDispose();
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} |
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/* (non-Javadoc)
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* @see org.gvsig.data.vectorial.FeatureStore#doOpen()
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*/
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protected void doOpen() throws OpenException { |
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//No Operation
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} |
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/* (non-Javadoc)
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* @see org.gvsig.data.vectorial.IFeatureStore#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.data.IDataStore#getExplorer()
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*/
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public IDataExplorer 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.data.vectorial.FeatureStore#init(org.gvsig.data.IDataStoreParameters, org.gvsig.data.Resource)
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*/
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public void init(IDataStoreParameters parameters, Resource resource) throws InitializeException { |
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super.init(parameters, resource);
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this.resource=(JDBCResource)resource;
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} |
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protected Connection getConnection() throws ReadException{ |
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return this.resource.getConnection(); |
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} |
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protected Connection getWriterConnection() throws ReadException{ |
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return this.resource.getWriterConnection(); |
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} |
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public boolean isEditable() { |
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return super.isEditable() && !this.useSqlSource; |
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} |
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public String getSqlSelectPart() { |
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return sqlSelectPart;
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} |
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public String getBaseOrder() { |
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return this.baseOrder; |
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} |
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public String getBaseWhereClause() { |
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return baseWhereClause;
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} |
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public boolean isUseSqlSource() { |
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return this.useSqlSource; |
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} |
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public String getSqlSource() { |
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return this.sqlSource; |
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} |
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protected abstract JDBCFeaturesWriter getFeaturesWriter() throws InitializeWriterException; |
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protected void doFinishEdition() throws WriteException, ReadException { |
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Iterator commandsfeatures = null; |
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JDBCFeaturesWriter selectiveWriter = getFeaturesWriter(); |
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IFeatureType type = getDefaultFeatureType(); |
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boolean needRefresh=false; |
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IFeature feature; |
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Object obj;
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IFeatureID featureId; |
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selectiveWriter.updateFeatureType(type); |
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selectiveWriter.preProcess(); |
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try{
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commandsfeatures = commands.getCommandsAttributeDeleted().iterator(); |
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while( commandsfeatures.hasNext() ) {
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obj=commandsfeatures.next(); |
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if (obj instanceof AttributeCommand){ |
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IFeatureAttributeDescriptor attribute = ((AttributeCommand)obj).getAttributeDescriptor(); |
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selectiveWriter.deleteAttribute(attribute); |
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needRefresh=true;
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} |
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} |
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commandsfeatures = commands.getCommandsAttributeUpdated().iterator(); |
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while( commandsfeatures.hasNext() ) {
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obj=commandsfeatures.next(); |
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if (obj instanceof AttributeCommand){ |
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IFeatureAttributeDescriptor oldAttribute = ((UpdateAttributeCommand)obj).getOldAttributeDescriptor(); |
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IFeatureAttributeDescriptor attribute = ((UpdateAttributeCommand)obj).getAttributeDescriptor(); |
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selectiveWriter.updateAttribute(oldAttribute,attribute); |
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needRefresh=true;
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} |
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} |
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commandsfeatures = commands.getCommandsAttributeInserted().iterator(); |
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while( commandsfeatures.hasNext() ) {
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obj=commandsfeatures.next(); |
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if (obj instanceof AttributeCommand){ |
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IFeatureAttributeDescriptor attribute = ((AttributeCommand)obj).getAttributeDescriptor(); |
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selectiveWriter.insertAttribute(attribute); |
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needRefresh=true;
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} |
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} |
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commandsfeatures = commands.getCommandsFeatureDeleted().iterator(); |
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while( commandsfeatures.hasNext() ) {
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obj=commandsfeatures.next(); |
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if (obj instanceof FeatureCommand){ |
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feature = ((FeatureCommand)obj).getFeature(); |
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if (feature instanceof CreatedFeature) |
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continue;
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selectiveWriter.deleteFeature(feature); |
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} |
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} |
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commandsfeatures = commands.getCommandsFeatureInserted().iterator(); |
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while( commandsfeatures.hasNext() ) {
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obj=commandsfeatures.next(); |
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if (obj instanceof FeatureCommand){ |
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feature = ((FeatureCommand)obj).getFeature(); |
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if (featureManager.isDeleted(feature)){
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continue;
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} |
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selectiveWriter.insertFeature(feature); |
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} |
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} |
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commandsfeatures = commands.getCommandsFeatureUpdated().iterator(); |
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HashMap toUpdate = new HashMap(); |
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while( commandsfeatures.hasNext() ) {
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obj=commandsfeatures.next(); |
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if (obj instanceof FeatureCommand){ |
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// IFeature oldFeature = ((UpdateFeatureCommand)obj).getOldFeature();
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feature = ((UpdateFeatureCommand)obj).getFeature(); |
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featureId =feature.getID(); |
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feature = featureManager.getFeature(featureId, this);
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if (feature != null){ |
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toUpdate.put(featureId, feature); |
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} |
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} |
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} |
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Iterator toUpdateIter = toUpdate.values().iterator();
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while (toUpdateIter.hasNext()){
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feature = (IFeature) toUpdateIter.next(); |
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selectiveWriter.updateFeature(feature); |
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} |
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selectiveWriter.postProcess(); |
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this.resource.changed(this); |
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if (needRefresh){
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this.refresh();
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} |
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}catch (ReadException e) {
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selectiveWriter.cancelProcess(); |
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throw e;
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} catch (WriteException e){
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selectiveWriter.cancelProcess(); |
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throw e;
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} catch (Exception e){ |
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selectiveWriter.cancelProcess(); |
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throw new WriteException(this.getName(),e); |
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} |
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} |
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public String getFilterForID(DBFeatureType fType, Object[] featureKey) { |
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if (fType.getFieldsId().length != 1) |
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throw new UnsupportedOperationException("ID fields > 1"); |
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String id =fType.getFieldsId()[0]; |
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return id + " = " + objectToSqlString(featureKey[0]); |
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} |
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protected String objectToSqlString(Object obj) { |
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if (obj instanceof String){ |
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return "'"+ scapeString((String)obj) +"'"; |
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} else if (obj == null){ |
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return "null"; |
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}else{
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// OJO con otros tipos!!
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return obj.toString();
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} |
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} |
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protected String scapeString(String str) { |
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return str.replace("'", "''"); |
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} |
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public IFeature getFeatureByID(IFeatureID id) throws ReadException{ |
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return getFeatureByID((DBFeatureType)this.getDefaultFeatureType(),((DBFeatureID)id).getKey()); |
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} |
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public IMetadata getMetadata() {
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if (metadata==null){ |
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IMetadataManager manager=MetadataManager.getManager(); |
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metadata=manager.create(this.getName());
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//TODO: Apadir los meteadatos
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} |
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return metadata;
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} |
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public boolean isWithDefaultLegend() { |
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return false; |
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} |
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public Object getDefaultLabelingStrategy() { |
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return null; |
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} |
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public Object getDefaultLegend() { |
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return null; |
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} |
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public IFeature getFeatureByID(IFeatureType featureType2, Object[] featureKey) throws ReadException{ |
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//TODO: Tener en cuenta el FeatureType por si es distinto
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if (useSqlSource){
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throw new ReadException("Unsuported featureByID in sqlSource mode",this.getName()); |
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} |
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ResultSet rs=null; |
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try{
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this.open();
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Statement st=this.getConnection().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY); |
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String sql = this.getSqlSelectPart() + " WHERE "+ this.getFilterForID((DBFeatureType)this.getDefaultFeatureType(), featureKey); |
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rs=st.executeQuery(sql); |
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if(rs.next()){
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return createFeatureFromResulset(rs, (DBFeatureType)this.getDefaultFeatureType()); |
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} |
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} catch (java.sql.SQLException e) {
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e.printStackTrace(); |
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throw new ReadException(this.getName(), e); |
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} finally{
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if (rs != null){ |
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try {
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rs.close(); |
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} catch (java.sql.SQLException e) {
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throw new ReadException(this.getName(),e); |
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} |
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} |
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} |
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return null; |
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} |
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protected abstract IFeature createFeatureFromResulset(ResultSet rs, DBFeatureType featureType2) throws ReadException; |
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} |