Package net.sourceforge.squirrel_sql.plugins.refactoring.commands

Source Code of net.sourceforge.squirrel_sql.plugins.refactoring.commands.DropViewCommand

package net.sourceforge.squirrel_sql.plugins.refactoring.commands;

/*
* Copyright (C) 2007 Daniel Regli & Yannick Winiger
* http://sourceforge.net/projects/squirrel-sql
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

import java.util.ArrayList;

import net.sourceforge.squirrel_sql.client.session.ISession;
import net.sourceforge.squirrel_sql.client.session.SQLExecuterTask;
import net.sourceforge.squirrel_sql.fw.dialects.DatabaseObjectQualifier;
import net.sourceforge.squirrel_sql.fw.dialects.HibernateDialect;
import net.sourceforge.squirrel_sql.fw.dialects.UserCancelledOperationException;
import net.sourceforge.squirrel_sql.fw.gui.GUIUtils;
import net.sourceforge.squirrel_sql.fw.sql.IDatabaseObjectInfo;
import net.sourceforge.squirrel_sql.fw.util.StringManager;
import net.sourceforge.squirrel_sql.fw.util.StringManagerFactory;
import net.sourceforge.squirrel_sql.fw.util.log.ILogger;
import net.sourceforge.squirrel_sql.fw.util.log.LoggerController;
import net.sourceforge.squirrel_sql.plugins.refactoring.gui.DefaultDropDialog;

/**
* Defines a command class to drop view(s).
*/
public class DropViewCommand extends AbstractRefactoringCommand
{
  /**
   * Logger for this class.
   */
  @SuppressWarnings("unused")
  private final ILogger s_log = LoggerController.createLogger(DropViewCommand.class);

  /**
   * Internationalized strings for this class
   */
  private static final StringManager s_stringMgr =
    StringManagerFactory.getStringManager(DropViewCommand.class);

  static interface i18n
  {
    String SHOWSQL_DIALOG_TITLE = s_stringMgr.getString("DropViewCommand.sqlDialogTitle");
  }

  protected DefaultDropDialog customDialog;

  public DropViewCommand(ISession session, IDatabaseObjectInfo[] dbInfo)
  {
    super(session, dbInfo);
  }

  /**
   * @see net.sourceforge.squirrel_sql.plugins.refactoring.commands.AbstractRefactoringCommand#onExecute()
   */
  @Override
  protected void onExecute()
  {
    showCustomDialog();
  }

  /**
   * @see net.sourceforge.squirrel_sql.plugins.refactoring.commands.AbstractRefactoringCommand#generateSQLStatements()
   */
  @Override
  protected String[] generateSQLStatements() throws UserCancelledOperationException
  {
    ArrayList<String> result = new ArrayList<String>();

    try
    {
      for (IDatabaseObjectInfo dbo : _info)
      {
        result.add(_dialect.getDropViewSQL(dbo.getSimpleName(),
          customDialog.isCascadeSelected(),
          new DatabaseObjectQualifier(dbo.getCatalogName(), dbo.getSchemaName()),
          _sqlPrefs)
          + "\n");
      }
    } catch (UnsupportedOperationException e2)
    {
      _session.showMessage(s_stringMgr.getString("DropViewCommand.unsupportedOperationMsg",
        _dialect.getDisplayName()));
    }

    return result.toArray(new String[] {});
  }

  /**
   * @see net.sourceforge.squirrel_sql.plugins.refactoring.commands.AbstractRefactoringCommand#executeScript(java.lang.String)
   */
  @Override
  protected void executeScript(String script)
  {
    CommandExecHandler handler = new CommandExecHandler(_session);

    SQLExecuterTask executer = new SQLExecuterTask(_session, script, handler);
    executer.run(); // Execute the sql synchronously

    _session.getApplication().getThreadPool().addTask(new Runnable()
    {
      public void run()
      {
        GUIUtils.processOnSwingEventThread(new Runnable()
        {
          public void run()
          {
            customDialog.setVisible(false);
            _session.getSchemaInfo().reloadAll();
          }
        });
      }
    });
  }

  /**
   * Returns a boolean value indicating whether or not this refactoring is supported for the specified
   * dialect.
   *
   * @param dialect
   *           the HibernateDialect to check
   * @return true if this refactoring is supported; false otherwise.
   */
  protected boolean isRefactoringSupportedForDialect(HibernateDialect dialect)
  {
    return dialect.supportsDropView();
  }

  private void showCustomDialog()
  {
    _session.getApplication().getThreadPool().addTask(new Runnable()
    {
      public void run()
      {
        GUIUtils.processOnSwingEventThread(new Runnable()
        {
          public void run()
          {
            customDialog = new DefaultDropDialog(_info, DefaultDropDialog.DIALOG_TYPE_VIEW);
            customDialog.addExecuteListener(new ExecuteListener());
            customDialog.addEditSQLListener(new EditSQLListener(customDialog));
            customDialog.addShowSQLListener(new ShowSQLListener(i18n.SHOWSQL_DIALOG_TITLE, customDialog));
            customDialog.setLocationRelativeTo(_session.getApplication().getMainFrame());
            customDialog.setVisible(true);
          }
        });
      }
    });
  }

}
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