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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.motorolamobility.studio.android.db.core.command;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.datatools.modelbase.sql.tables.Table;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.PlatformUI;
import com.motorolamobility.studio.android.db.core.DbCoreActivator;
import com.motorolamobility.studio.android.db.core.i18n.DbCoreNLS;
import com.motorolamobility.studio.android.db.core.model.TableModel;
import com.motorolamobility.studio.android.db.core.ui.ITreeNode;
import com.motorolamobility.studio.android.db.core.ui.action.ITableCreatorNode;
import com.motorolamobility.studio.android.db.core.ui.wizards.CreateTableWizard;
public class TableCreateHandler extends AbstractHandler
{
private ITableCreatorNode tableCreatorNode = null;
public TableCreateHandler()
{
}
public TableCreateHandler(ITableCreatorNode tableCreatorNode)
{
this.tableCreatorNode = tableCreatorNode;
}
/* (non-Javadoc)
* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
*/
public Object execute(ExecutionEvent event) throws ExecutionException
{
if (tableCreatorNode == null)
{
tableCreatorNode = getSelectedItem();
}
//tableCreatorNode may be null if the action come from toolbar
//and the selected item is not an ITableCreatorNode
if (tableCreatorNode != null)
{
Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
boolean tableAdded = false;
// loop used to validate the new table name. If it already exists
// tell the user and open the table wizard again.
while (!tableAdded)
{
//repeat while table not added and dialog not cancelled
CreateTableWizard createTableWizard = new CreateTableWizard();
Set<String> notAllowedNames = getNotAllowedNames(tableCreatorNode.getTables());
createTableWizard.setNotAllowedNames(notAllowedNames);
WizardDialog dialog = new WizardDialog(shell, createTableWizard);
dialog.open();
if (dialog.getReturnCode() == Dialog.OK)
{
TableModel newTable = createTableWizard.getTable();
if (newTable != null)
{
boolean tableNameAlreadyExists = false;
for (Table table : tableCreatorNode.getTables())
{
if (table.getName().equalsIgnoreCase(newTable.getName()))
{
tableNameAlreadyExists = true;
break;
}
}
if (!tableNameAlreadyExists)
{
tableCreatorNode.createTable(newTable);
tableCreatorNode = null; //clear selected node to force getSelectedItem to be called when calling via toolbar
tableAdded = true;
}
else
{
//notify error that table already exists
MessageDialog
.openError(
PlatformUI.getWorkbench().getActiveWorkbenchWindow()
.getShell(),
DbCoreNLS.CreateDatabaseWizardPage_Table_Already_Exists_Title,
NLS.bind(
DbCoreNLS.CreateDatabaseWizardPage_Table_Already_Exists_Msg,
newTable.getName()));
}
}
}
else
{
//exit the loop if the user cancel dialog
break;
}
}
}
return null;
}
private ITableCreatorNode getSelectedItem()
{
ITableCreatorNode selectedNode = null;
ITreeNode selectedItem =
DbCoreActivator.getMOTODEVDatabaseExplorerView().getSelectedItemOnTree();
if (selectedItem instanceof ITableCreatorNode)
{
selectedNode = (ITableCreatorNode) selectedItem;
}
return selectedNode;
}
private Set<String> getNotAllowedNames(List<Table> list)
{
Set<String> names = new HashSet<String>();
for (Table table : list)
{
names.add(table.getName().toUpperCase());
}
return names;
}
}
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