GetDatabaseInfoProgressDialog.java

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 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
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 *
 * 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,
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package org.pentaho.di.ui.core.database.dialog;

import java.lang.reflect.InvocationTargetException;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Shell;
import org.pentaho.di.core.ProgressMonitorAdapter;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.database.DatabaseMetaInformation;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.ui.core.dialog.ErrorDialog;
import org.pentaho.di.ui.spoon.Spoon;

/**
 * Takes care of displaying a dialog that will handle the wait while we're finding out what tables, views etc we can
 * reach in the database.
 *
 * @author Matt
 * @since 07-apr-2005
 */
public class GetDatabaseInfoProgressDialog {
  private static Class<?> PKG = GetDatabaseInfoProgressDialog.class; // for i18n purposes, needed by Translator2!!

  private Shell shell;
  private DatabaseMeta dbInfo;

  /**
   * Creates a new dialog that will handle the wait while we're finding out what tables, views etc we can reach in the
   * database.
   */
  public GetDatabaseInfoProgressDialog( Shell shell, DatabaseMeta dbInfo ) {
    this.shell = shell;
    this.dbInfo = dbInfo;
  }

  public DatabaseMetaInformation open() {
    final DatabaseMetaInformation dmi = new DatabaseMetaInformation( dbInfo );
    IRunnableWithProgress op = new IRunnableWithProgress() {
      public void run( IProgressMonitor monitor ) throws InvocationTargetException, InterruptedException {
        try {
          dmi.getData( Spoon.loggingObject, new ProgressMonitorAdapter( monitor ) );
        } catch ( Exception e ) {
          throw new InvocationTargetException( e, BaseMessages.getString(
            PKG, "GetDatabaseInfoProgressDialog.Error.GettingInfoTable", e.toString() ) );
        }
      }
    };

    try {
      ProgressMonitorDialog pmd = new ProgressMonitorDialog( shell );

      pmd.run( true, true, op );
    } catch ( InvocationTargetException e ) {
      showErrorDialog( e );
      return null;
    } catch ( InterruptedException e ) {
      showErrorDialog( e );
      return null;
    }

    return dmi;
  }

  /**
   * Showing an error dialog
   *
   * @param e
   */
  private void showErrorDialog( Exception e ) {
    new ErrorDialog(
      shell, BaseMessages.getString( PKG, "GetDatabaseInfoProgressDialog.Error.Title" ), BaseMessages.getString(
        PKG, "GetDatabaseInfoProgressDialog.Error.Message" ), e );
  }
}