svn-gvsig-desktop / trunk / applications / appgvSIG / src / com / iver / cit / gvsig / TableOperations.java @ 28248
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib??ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package com.iver.cit.gvsig; |
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import java.awt.Dimension; |
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import java.io.IOException; |
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import com.hardcode.driverManager.DriverLoadException; |
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException; |
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import com.hardcode.gdbms.engine.data.DataSource; |
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import com.hardcode.gdbms.engine.data.DataSourceFactory; |
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import com.hardcode.gdbms.engine.instruction.EvaluationException; |
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import com.hardcode.gdbms.engine.instruction.SemanticException; |
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import com.hardcode.gdbms.parser.ParseException; |
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import com.iver.andami.PluginServices; |
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import com.iver.andami.messages.NotificationManager; |
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import com.iver.andami.plugins.Extension; |
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import com.iver.andami.ui.mdiManager.IWindow; |
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import com.iver.cit.gvsig.fmap.edition.EditableAdapter; |
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import com.iver.cit.gvsig.fmap.layers.FBitSet; |
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import com.iver.cit.gvsig.fmap.layers.LayerFactory; |
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import com.iver.cit.gvsig.fmap.layers.SelectableDataSource; |
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import com.iver.cit.gvsig.gui.filter.ExpressionListener; |
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import com.iver.cit.gvsig.project.Project; |
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import com.iver.cit.gvsig.project.documents.table.FieldSelectionModel; |
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import com.iver.cit.gvsig.project.documents.table.ObjectSelectionStep; |
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import com.iver.cit.gvsig.project.documents.table.ProjectTable; |
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import com.iver.cit.gvsig.project.documents.table.ProjectTableFactory; |
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import com.iver.cit.gvsig.project.documents.table.TableSelectionModel; |
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import com.iver.cit.gvsig.project.documents.table.gui.AndamiWizard; |
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import com.iver.cit.gvsig.project.documents.table.gui.JoinWizardController; |
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import com.iver.cit.gvsig.project.documents.table.gui.Table; |
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import com.iver.utiles.swing.objectSelection.SelectionException; |
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import com.iver.utiles.swing.wizard.WizardControl; |
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import com.iver.utiles.swing.wizard.WizardEvent; |
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import com.iver.utiles.swing.wizard.WizardListener; |
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/**
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* Extensi?n que controla las operaciones realizadas sobre las tablas.
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*
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* @author Fernando Gonz?lez Cort?s
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*/
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public class TableOperations extends Extension implements ExpressionListener { |
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private SelectableDataSource dataSource = null; |
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//private Table vista;
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/**
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* @see com.iver.mdiApp.plugins.IExtension#updateUI(java.lang.String)
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*/
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public void execute(String actionCommand) { |
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ProjectExtension pe = (ProjectExtension) PluginServices.getExtension(ProjectExtension.class); |
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Project project=pe.getProject(); |
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ProjectTable[] pts = (ProjectTable[]) project.getDocumentsByType(ProjectTableFactory.registerName) |
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.toArray(new ProjectTable[0]); |
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if ("JOIN".equals(actionCommand)) { |
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JoinWizardController wizardController = new JoinWizardController(this); |
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wizardController.runWizard(pts); |
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}else if ("LINK".equals(actionCommand)) { |
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try {
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final ObjectSelectionStep sourceTable = new ObjectSelectionStep(); |
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sourceTable.setModel(new TableSelectionModel(pts,
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PluginServices.getText(this, "seleccione_tabla_origen"))); |
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final ObjectSelectionStep targetTable = new ObjectSelectionStep(); |
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targetTable.setModel(new TableSelectionModel(pts,
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PluginServices.getText(this, "seleccione_tabla_a_enlazar"))); |
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final ObjectSelectionStep firstTableField = new ObjectSelectionStep(); |
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final ObjectSelectionStep secondTableField = new ObjectSelectionStep(); |
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final AndamiWizard wiz = new AndamiWizard(PluginServices.getText(this, "back"), PluginServices.getText(this, "next"), PluginServices.getText(this, "finish"), PluginServices.getText(this, "cancel")); |
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wiz.setSize(new Dimension(450,200)); |
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wiz.addStep(sourceTable); |
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wiz.addStep(firstTableField); |
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wiz.addStep(targetTable); |
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wiz.addStep(secondTableField); |
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wiz.addWizardListener(new WizardListener() {
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public void cancel(WizardEvent w) { |
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PluginServices.getMDIManager().closeWindow(wiz); |
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} |
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public void finished(WizardEvent w) { |
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PluginServices.getMDIManager().closeWindow(wiz); |
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ProjectTable sourceProjectTable = (ProjectTable) sourceTable.getSelected(); |
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SelectableDataSource sds1=null;;
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try {
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sds1 = sourceProjectTable.getModelo().getRecordset(); |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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//String tableName1 = sds1.getName();
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ProjectTable targetProjectTable = (ProjectTable) targetTable.getSelected(); |
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SelectableDataSource sds2=null;
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try {
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sds2 = targetProjectTable.getModelo().getRecordset(); |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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//String tableName2 = sds2.getName();
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String field1 = (String) firstTableField.getSelected(); |
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String field2 = (String) secondTableField.getSelected(); |
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sourceProjectTable.setLinkTable(sds2.getName(),field1,field2); |
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((ProjectExtension)PluginServices.getExtension(ProjectExtension.class)).getProject().setLinkTable(); |
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} |
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public void next(WizardEvent w) { |
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WizardControl wiz = w.wizard; |
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wiz.enableBack(true);
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wiz.enableNext(((ObjectSelectionStep) wiz.getCurrentStep()).getSelectedItem() != null);
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if (w.currentStep == 1) { |
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ProjectTable pt = (ProjectTable) sourceTable.getSelected(); |
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try {
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firstTableField.setModel(new FieldSelectionModel(
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pt.getModelo().getRecordset(), |
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PluginServices.getText(this, "seleccione_campo_enlace"), |
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-1));
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} catch (SelectionException e) {
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NotificationManager.addError("Error obteniendo los campos de la tabla",
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e); |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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} else if (w.currentStep == 3) { |
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try {
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//tabla
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ProjectTable pt = (ProjectTable) sourceTable.getSelected(); |
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//?ndice del campo
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SelectableDataSource sds = pt.getModelo().getRecordset(); |
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String fieldName = (String) firstTableField.getSelected(); |
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int fieldIndex = sds.getFieldIndexByName(fieldName);
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int type = sds.getFieldType(fieldIndex);
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secondTableField.setModel(new FieldSelectionModel(
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((ProjectTable) targetTable.getSelected()).getModelo().getRecordset(), |
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PluginServices.getText(this, "seleccione_campo_enlace"), |
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type)); |
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} catch (SelectionException e) {
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NotificationManager.addError("Error obteniendo los campos de la tabla",
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e); |
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} catch (ReadDriverException e) {
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NotificationManager.addError("Error obteniendo los campos de la tabla",
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e); |
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} |
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} |
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} |
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public void back(WizardEvent w) { |
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WizardControl wiz = w.wizard; |
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wiz.enableBack(true);
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wiz.enableNext(((ObjectSelectionStep) wiz.getCurrentStep()).getSelectedItem() != null);
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} |
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}); |
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project.setModified(true);
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PluginServices.getMDIManager().addWindow(wiz); |
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} catch (SelectionException e) {
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NotificationManager.addError("Error abriendo el asistente", e);
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} |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.gui.filter.ExpressionListener#newSet(java.lang.String)
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*/
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public void newSet(String expression) { |
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// By Pablo: if no expression -> no element selected
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if (! this.filterExpressionFromWhereIsEmpty(expression)) { |
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long[] sel = doSet(expression); |
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if (sel == null) { |
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throw new RuntimeException("Not a 'where' clause?"); |
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} |
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FBitSet selection = new FBitSet();
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for (int i = 0; i < sel.length; i++) { |
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selection.set((int) sel[i]);
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} |
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dataSource.clearSelection(); |
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dataSource.setSelection(selection); |
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} |
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else {
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// By Pablo: if no expression -> no element selected
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dataSource.clearSelection(); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.gui.filter.ExpressionListener#newSet(java.lang.String)
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*/
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private long[] doSet(String expression) { |
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try {
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DataSource ds = LayerFactory.getDataSourceFactory().executeSQL(expression,
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DataSourceFactory.MANUAL_OPENING); |
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return ds.getWhereFilter();
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} catch (DriverLoadException e) {
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NotificationManager.addError("Error cargando el driver", e);
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} catch (ReadDriverException e) {
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NotificationManager.addError("Error accediendo al driver", e);
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} catch (ParseException e) { |
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NotificationManager.addError("Parse error", e);
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} catch (SemanticException e) {
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NotificationManager.addError(e.getMessage(), e); |
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} catch (IOException e) { |
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NotificationManager.addError("GDBMS internal error", e);
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} catch (EvaluationException e) {
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NotificationManager.addError("Error con la expresi?n", e);
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} |
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return null; |
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} |
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/**
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* @see com.iver.cit.gvsig.gui.filter.ExpressionListener#addToSet(java.lang.String)
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*/
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public void addToSet(String expression) { |
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// By Pablo: if no expression -> don't add more elements to set
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if (! this.filterExpressionFromWhereIsEmpty(expression)) { |
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long[] sel = doSet(expression); |
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if (sel == null) { |
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throw new RuntimeException("Not a 'where' clause?"); |
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} |
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FBitSet selection = new FBitSet();
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for (int i = 0; i < sel.length; i++) { |
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selection.set((int) sel[i]);
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} |
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FBitSet fbs = dataSource.getSelection(); |
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fbs.or(selection); |
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dataSource.setSelection(fbs); |
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} |
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} |
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/**
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* @see com.iver.cit.gvsig.gui.filter.ExpressionListener#fromSet(java.lang.String)
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*/
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public void fromSet(String expression) { |
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// By Pablo: if no expression -> no element selected
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if (! this.filterExpressionFromWhereIsEmpty(expression)) { |
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long[] sel = doSet(expression); |
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if (sel == null) { |
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throw new RuntimeException("Not a 'where' clause?"); |
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} |
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FBitSet selection = new FBitSet();
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for (int i = 0; i < sel.length; i++) { |
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selection.set((int) sel[i]);
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} |
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FBitSet fbs = dataSource.getSelection(); |
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fbs.and(selection); |
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dataSource.setSelection(fbs); |
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} |
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else {
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// By Pablo: if no expression -> no element selected
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dataSource.clearSelection(); |
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} |
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} |
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/**
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* Returns true if the WHERE subconsultation of the filterExpression is empty ("")
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*
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* @author Pablo Piqueras Bartolom? (p_queras@hotmail.com)
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* @param expression An string
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* @return A boolean value
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*/
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private boolean filterExpressionFromWhereIsEmpty(String expression) { |
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String subExpression = expression.trim();
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int pos;
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// Remove last ';' if exists
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if (subExpression.charAt(subExpression.length() -1) == ';') |
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subExpression = subExpression.substring(0, subExpression.length() -1).trim(); |
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// If there is no 'where' clause
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if ((pos = subExpression.indexOf("where")) == -1) |
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return false; |
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// If there is no subexpression in the WHERE clause -> true
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subExpression = subExpression.substring(pos + 5, subExpression.length()).trim(); // + 5 is the length of 'where' |
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if ( subExpression.length() == 0 ) |
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return true; |
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else
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return false; |
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} |
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/**
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* @see com.iver.mdiApp.plugins.IExtension#isVisible()
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*/
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public boolean isVisible() { |
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IWindow v = PluginServices.getMDIManager().getActiveWindow(); |
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if (v == null) { |
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return false; |
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} |
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if (v instanceof Table) { |
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return true; |
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} /*else {
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if (v instanceof com.iver.cit.gvsig.gui.View) {
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com.iver.cit.gvsig.gui.View view = (com.iver.cit.gvsig.gui.View) v;
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ProjectView pv = view.getModel();
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FLayer[] seleccionadas = pv.getMapContext().getLayers()
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.getActives();
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if (seleccionadas.length == 1) {
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if (seleccionadas[0] instanceof AlphanumericData) {
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return true;
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}
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}
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}
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*/
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return false; |
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//}
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} |
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/**
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* @see com.iver.andami.plugins.IExtension#initialize()
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*/
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public void initialize() { |
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registerIcons(); |
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} |
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private void registerIcons(){ |
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PluginServices.getIconTheme().registerDefault( |
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"table-join",
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this.getClass().getClassLoader().getResource("images/tablejoin.png") |
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); |
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PluginServices.getIconTheme().registerDefault( |
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"table-link",
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this.getClass().getClassLoader().getResource("images/tablelink.png") |
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); |
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} |
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/**
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* @see com.iver.andami.plugins.IExtension#isEnabled()
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*/
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public boolean isEnabled() { |
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return true; |
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} |
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public void execJoin(ProjectTable sourceProjectTable, String field1, String prefix1, |
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ProjectTable targetProjectTable, String field2, String prefix2) { |
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// get source table and source field
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SelectableDataSource sds=null;
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try {
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sds = sourceProjectTable.getModelo().getRecordset(); |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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String tableName1 = sds.getName();
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// get target table and target field
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SelectableDataSource tds=null;
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try {
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tds = targetProjectTable.getModelo().getRecordset(); |
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} catch (ReadDriverException e) {
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e.printStackTrace(); |
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} |
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String tableName2 = tds.getName();
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// compute the join
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String sql =
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"custom com_iver_cit_gvsig_arcjoin tables '" +
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tableName1 + "', '" + tableName2 + "' values(" + |
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field1 + ", " + field2 + ");"; |
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PluginServices.getLogger().debug(sql); |
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try {
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SelectableDataSource result = new SelectableDataSource(LayerFactory.getDataSourceFactory()
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.executeSQL(sql, |
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DataSourceFactory.AUTOMATIC_OPENING)); |
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EditableAdapter auxea=new EditableAdapter();
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auxea.setOriginalDataSource(result); |
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String[] currentJoinedTables = sourceProjectTable.getJoinedTables(); |
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String[] joinedTables; |
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if (currentJoinedTables!=null) { |
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joinedTables = new String[currentJoinedTables.length+1]; |
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System.arraycopy(currentJoinedTables, 0, joinedTables, 0, currentJoinedTables.length); |
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} |
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else {
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joinedTables = new String[1]; |
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} |
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joinedTables[joinedTables.length-1] = targetProjectTable.getName();
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sourceProjectTable.setJoinTable(joinedTables); |
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sourceProjectTable.replaceDataSource(auxea); |
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renameFields(sourceProjectTable, sds, sanitizeFieldName(prefix1), |
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tds, sanitizeFieldName(prefix2)); |
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} catch (ParseException e) { |
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throw new RuntimeException(e); |
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} catch (DriverLoadException e) {
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NotificationManager.addError(PluginServices.getText(this, "Error_loading_driver"), |
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e); |
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} catch (ReadDriverException e) {
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NotificationManager.addError(PluginServices.getText(this, "Error_reading_from_the_driver"), |
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e); |
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} catch (SemanticException e) {
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throw new RuntimeException(e); |
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} catch (EvaluationException e) {
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NotificationManager.addError(PluginServices.getText(this, "Error_evaluationg_expression"), |
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e); |
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} |
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} |
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//
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// /**
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// * Renames fields in a JOIN, so that fields from TABLE1
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// * become sourcePrefix.field1, sourcePrefix.field2, etc, and fields
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// * from TABLE2 become targetPrefix.field1, targetPrefix.field2, etc.
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// * @param eds
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// * @param pt1
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// * @param pt1
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// */
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/**
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* <p>Renames fields in a JOIN, so that fields from DataSource1
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* become sourcePrefix_field1, sourcePrefix_field2, etc, and fields
|
| 468 |
* from TABLE2 become targetPrefix_field1, targetPrefix_field2, etc.
|
| 469 |
* ProjectTable aliases are used to rename fields.</p>
|
| 470 |
*
|
| 471 |
* @param targetPt The ProjectTable whose fields are to be renamed
|
| 472 |
* @param ds1 The first datasource in the join
|
| 473 |
* @param prefix1 The prefix to apply to fields in ds1
|
| 474 |
* @param ds2 The second datasource in the join
|
| 475 |
* @param prefix2 The prefix to apply to fields in ds2
|
| 476 |
*/
|
| 477 |
private void renameFields(ProjectTable targetPt, DataSource ds1, String prefix1, |
| 478 |
DataSource ds2, String prefix2) { |
| 479 |
try {
|
| 480 |
SelectableDataSource sds = targetPt.getModelo().getRecordset(); |
| 481 |
String[] aliases = new String[sds.getFieldCount()]; |
| 482 |
int i=0; |
| 483 |
while (i<aliases.length && i<ds1.getFieldCount()){
|
| 484 |
aliases[i] = prefix1+"_"+sds.getFieldName(i);
|
| 485 |
i++; |
| 486 |
} |
| 487 |
while (i<aliases.length) {
|
| 488 |
aliases[i] = prefix2 + "_" + sds.getFieldName(i).substring("link_".length()); |
| 489 |
i++; |
| 490 |
} |
| 491 |
targetPt.setAliases(aliases); |
| 492 |
} catch (ReadDriverException e) {
|
| 493 |
//just log the error, it's not bad if fields couldn't be renamed
|
| 494 |
PluginServices.getLogger().error("Error renaming fields in a JOIN", e);
|
| 495 |
} catch (Exception e) { |
| 496 |
//just log the error, it's not bad if fields couldn't be renamed
|
| 497 |
PluginServices.getLogger().error("Error renaming fields in a JOIN", e);
|
| 498 |
} |
| 499 |
} |
| 500 |
|
| 501 |
/**
|
| 502 |
* Ensure that field name only has 'safe' characters
|
| 503 |
* (no spaces, special characters, etc).
|
| 504 |
*/
|
| 505 |
public String sanitizeFieldName(String fieldName) { |
| 506 |
return fieldName.replaceAll("\\W", "_"); // replace any non-word character by an underscore |
| 507 |
} |
| 508 |
|
| 509 |
} |