org.pentaho.di.ui.spoon.dialog.CheckTransProgressDialog.java Source code

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Here is the source code for org.pentaho.di.ui.spoon.dialog.CheckTransProgressDialog.java

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/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2017 by Hitachi Vantara : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * 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 org.pentaho.di.ui.spoon.dialog;

import java.lang.reflect.InvocationTargetException;
import java.util.List;

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.CheckResultInterface;
import org.pentaho.di.core.ProgressMonitorAdapter;
import org.pentaho.di.core.variables.VariableSpace;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.repository.Repository;
import org.pentaho.di.trans.TransMeta;
import org.pentaho.di.ui.core.dialog.ErrorDialog;
import org.pentaho.di.ui.spoon.Spoon;
import org.pentaho.metastore.api.IMetaStore;

/**
 * Takes care of displaying a dialog that will handle the wait while checking a transformation...
 *
 * @author Matt
 * @since 16-mrt-2005
 */
public class CheckTransProgressDialog {
    private static Class<?> PKG = CheckTransProgressDialog.class; // for i18n purposes, needed by Translator2!!

    private Shell shell;
    private TransMeta transMeta;
    private List<CheckResultInterface> remarks;
    private boolean onlySelected;

    private VariableSpace space;

    private Repository repository;

    private IMetaStore metaStore;

    /**
     * Creates a new dialog that will handle the wait while checking a transformation...
     */
    public CheckTransProgressDialog(Shell shell, TransMeta transMeta, List<CheckResultInterface> remarks,
            boolean onlySelected) {
        this(shell, transMeta, remarks, onlySelected, transMeta, Spoon.getInstance().getRepository(),
                Spoon.getInstance().getMetaStore());
    }

    /**
     * Creates a new dialog that will handle the wait while checking a transformation...
     */
    public CheckTransProgressDialog(Shell shell, TransMeta transMeta, List<CheckResultInterface> remarks,
            boolean onlySelected, VariableSpace space, Repository repository, IMetaStore metaStore) {
        this.shell = shell;
        this.transMeta = transMeta;
        this.onlySelected = onlySelected;
        this.remarks = remarks;
        this.space = space;
        this.repository = repository;
        this.metaStore = metaStore;
    }

    public void open() {
        final ProgressMonitorDialog pmd = new ProgressMonitorDialog(shell);

        IRunnableWithProgress op = new IRunnableWithProgress() {
            public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
                try {
                    transMeta.checkSteps(remarks, onlySelected, new ProgressMonitorAdapter(monitor), space,
                            repository, metaStore);
                } catch (Exception e) {
                    throw new InvocationTargetException(e, BaseMessages.getString(PKG,
                            "AnalyseImpactProgressDialog.RuntimeError.ErrorCheckingTransformation.Exception",
                            e.toString()));
                }
            }
        };

        try {
            // Run something in the background to cancel active database queries, force this if needed!
            Runnable run = new Runnable() {
                public void run() {
                    IProgressMonitor monitor = pmd.getProgressMonitor();
                    while (pmd.getShell() == null || (!pmd.getShell().isDisposed() && !monitor.isCanceled())) {
                        try {
                            Thread.sleep(250);
                        } catch (InterruptedException e) {
                            // Ignore sleep interruption exception
                        }
                    }

                    if (monitor.isCanceled()) { // Disconnect and see what happens!

                        try {
                            transMeta.cancelQueries();
                        } catch (Exception e) {
                            // Ignore cancel errors
                        }
                    }
                }
            };
            // Dump the cancel looker in the background!
            new Thread(run).start();

            pmd.run(true, true, op);
        } catch (InvocationTargetException e) {
            new ErrorDialog(shell,
                    BaseMessages.getString(PKG,
                            "CheckTransProgressDialog.Dialog.ErrorCheckingTransformation.Title"),
                    BaseMessages.getString(PKG,
                            "CheckTransProgressDialog.Dialog.ErrorCheckingTransformation.Message"),
                    e);
        } catch (InterruptedException e) {
            new ErrorDialog(shell,
                    BaseMessages.getString(PKG,
                            "CheckTransProgressDialog.Dialog.ErrorCheckingTransformation.Title"),
                    BaseMessages.getString(PKG,
                            "CheckTransProgressDialog.Dialog.ErrorCheckingTransformation.Message"),
                    e);
        }
    }
}