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/*******************************************************************************
* Copyright (c) 2007, 2010 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
*******************************************************************************/
package org.eclipse.jpt.eclipselink.ui.internal.ddlgen;
import java.util.Iterator;
import org.eclipse.core.resources.WorkspaceJob;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.Window;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.jpt.core.JpaPlatform;
import org.eclipse.jpt.core.JpaProject;
import org.eclipse.jpt.core.context.persistence.Persistence;
import org.eclipse.jpt.core.context.persistence.PersistenceUnit;
import org.eclipse.jpt.eclipselink.core.internal.ddlgen.EclipseLinkDDLGenerator;
import org.eclipse.jpt.eclipselink.ui.JptEclipseLinkUiPlugin;
import org.eclipse.jpt.eclipselink.ui.internal.EclipseLinkUiMessages;
import org.eclipse.jpt.eclipselink.ui.internal.ddlgen.wizards.GenerateDDLWizard;
import org.eclipse.jpt.ui.internal.util.SWTUtil;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
/**
* EclipseLinkDLLGeneratorUi is used by the EclipseLinkPlatformUi to initiate
* the execution of EclipseLink DDL generator.
*/
public class EclipseLinkDDLGeneratorUi
{
private final JpaProject project;
private static final String CR = StringTools.CR;
// ********** constructors **********
public static void generate(JpaProject project) {
new EclipseLinkDDLGeneratorUi(project).generate();
}
protected EclipseLinkDDLGeneratorUi(JpaProject project) {
super();
if (project == null) {
throw new NullPointerException();
}
this.project = project;
}
// ********** behavior **********
protected void generate() {
PersistenceUnit persistenceUnit = this.getPersistenceUnits().next(); // Take the first persistenceUnit
String puName = persistenceUnit.getName();
if( ! this.displayGeneratingDDLWarning()) {
return;
}
GenerateDDLWizard wizard = new GenerateDDLWizard(this.project);
WizardDialog dialog = new WizardDialog(this.getCurrentShell(), wizard);
dialog.create();
if(wizard.getPageCount() > 0) {
int returnCode = dialog.open();
if (returnCode == Window.CANCEL) {
return;
}
}
WorkspaceJob job = this.buildGenerateDDLJob(puName, this.project);
job.schedule();
}
protected WorkspaceJob buildGenerateDDLJob(String puName, JpaProject project) {
return new GenerateDDLJob(puName, project);
}
private Shell getCurrentShell() {
return Display.getCurrent().getActiveShell();
}
private boolean displayGeneratingDDLWarning() {
String message = org.eclipse.osgi.util.NLS.bind(
EclipseLinkUiMessages.EclipseLinkDDLGeneratorUi_generatingDDLWarningMessage,
CR, CR + CR);
return MessageDialog.openQuestion(
this.getCurrentShell(),
EclipseLinkUiMessages.EclipseLinkDDLGeneratorUi_generatingDDLWarningTitle,
message);
}
// ********** Persistence Unit **********
protected JpaPlatform getPlatform() {
return this.project.getJpaPlatform();
}
protected Iterator<PersistenceUnit> getPersistenceUnits() {
return this.getPersistence().persistenceUnits();
}
protected Persistence getPersistence() {
return this.project.getRootContextNode().getPersistenceXml().getPersistence();
}
// ********** runnable **********
protected static class GenerateDDLJob extends WorkspaceJob {
private final String puName;
private final JpaProject project;
public GenerateDDLJob(String puName, JpaProject project) {
super(EclipseLinkUiMessages.ECLIPSELINK_GENERATE_TABLES_JOB);
this.puName = puName;
this.project = project;
}
@Override
public IStatus runInWorkspace(IProgressMonitor monitor) throws CoreException {
SubMonitor sm = SubMonitor.convert(monitor, EclipseLinkUiMessages.ECLIPSELINK_GENERATE_TABLES_TASK, 1);
try {
this.ddlGeneratorGenerate(this.puName, this.project, sm.newChild(1));
}
catch (OperationCanceledException e) {
return Status.CANCEL_STATUS;
}
catch (RuntimeException re) {
this.logException(re);
}
return Status.OK_STATUS;
}
protected void ddlGeneratorGenerate(String puName, JpaProject project, IProgressMonitor monitor) {
EclipseLinkDDLGenerator.generate(puName, project, monitor);
}
protected void logException(RuntimeException re) {
String msg = re.getMessage();
String message = (msg == null) ? re.toString() : msg;
this.displayError(message);
JptEclipseLinkUiPlugin.log(re);
}
private void displayError(final String message) {
SWTUtil.syncExec(new Runnable() {
public void run() {
MessageDialog.openError(
getShell(),
EclipseLinkUiMessages.EclipseLinkDDLGeneratorUi_error,
message
);
}
});
}
private Shell getShell() {
Display display = Display.getCurrent();
Shell shell = (display == null) ? null : display.getActiveShell();
if (shell == null && display != null) {
Shell[] shells = display.getShells();
if (shells.length > 0)
shell = shells[0];
}
return shell;
}
}
}
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