com.twinsoft.convertigo.eclipse.dialogs.XmlStructureDialog.java Source code

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Here is the source code for com.twinsoft.convertigo.eclipse.dialogs.XmlStructureDialog.java

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/*
 * Copyright (c) 2001-2014 Convertigo SA.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 *
 * $URL$
 * $Author$
 * $Revision$
 * $Date$
 */

package com.twinsoft.convertigo.eclipse.dialogs;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Shell;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import com.twinsoft.convertigo.eclipse.ConvertigoPlugin;
import com.twinsoft.convertigo.eclipse.wizards.new_object.ObjectsExplorerComposite;
import com.twinsoft.convertigo.engine.util.StepUtils;
import com.twinsoft.convertigo.engine.util.XMLUtils;

public class XmlStructureDialog extends Dialog implements Runnable {

    private String xml = null;
    private String dialogTitle;
    private Object parentObject = null;
    public Object result = null;

    public XmlStructureDialog(Shell parentShell, Object parentObject) {
        this(parentShell, ObjectsExplorerComposite.class, "Xml structure", parentObject);
    }

    public XmlStructureDialog(Shell parentShell, Class<? extends Composite> dialogAreaClass, String dialogTitle,
            Object parentObject) {
        super(parentShell);
        this.dialogTitle = dialogTitle;
        this.parentObject = parentObject;
    }

    public XmlStructureDialog(Shell parentShell, Object parentObject, String xmlContent) {
        this(parentShell, ObjectsExplorerComposite.class, "Xml structure", parentObject);
        xml = xmlContent;
    }

    private XmlStructureDialogComposite schemaObjectsDialogComposite = null;
    private ProgressBar progressBar = null;
    private Label labelProgression = null;

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);

        try {
            GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_BOTH);

            if (xml == null)
                schemaObjectsDialogComposite = new XmlStructureDialogComposite(composite, SWT.NONE, parentObject);
            else
                schemaObjectsDialogComposite = new XmlStructureDialogComposite(composite, SWT.NONE, parentObject,
                        xml);

            schemaObjectsDialogComposite.setLayoutData(gridData);
            labelProgression = schemaObjectsDialogComposite.labelProgression;
            progressBar = schemaObjectsDialogComposite.progressBar;
        } catch (Exception e) {

        }

        return composite;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.dialogs.Dialog#createButtonBar(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createButtonBar(Composite parent) {
        Control buttonBar = super.createButtonBar(parent);
        getButton(IDialogConstants.OK_ID).setText("Import");
        getButton(IDialogConstants.OK_ID).setEnabled(true);
        return buttonBar;
    }

    public void enableOK(boolean enabled) {
        getButton(IDialogConstants.OK_ID).setEnabled(enabled);
    }

    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText(dialogTitle);
    }

    @Override
    protected int getShellStyle() {
        return SWT.TITLE | SWT.BORDER | SWT.RESIZE | SWT.APPLICATION_MODAL;
    }

    @Override
    protected void okPressed() {
        try {
            getButton(IDialogConstants.OK_ID).setEnabled(false);
            getButton(IDialogConstants.CANCEL_ID).setEnabled(false);

            if (schemaObjectsDialogComposite != null) {
                xml = (String) schemaObjectsDialogComposite.getValue(null);
            }

            Thread thread = new Thread(this);
            thread.start();
        } catch (Throwable e) {
            ConvertigoPlugin.logException(e, "Unable to import objects");
        } finally {
            getButton(IDialogConstants.OK_ID).setEnabled(true);
            getButton(IDialogConstants.CANCEL_ID).setEnabled(true);
        }
    }

    public void run() {
        final Display display = getParentShell().getDisplay();
        Thread progressBarThread = new Thread("Progress Bar thread") {
            @Override
            public void run() {
                int i = 0;
                while (true) {
                    try {
                        i += 5;
                        if (i >= 100)
                            i = 0;
                        final int j = i;
                        display.asyncExec(new Runnable() {
                            public void run() {
                                if (!progressBar.isDisposed())
                                    progressBar.setSelection(j);
                            }
                        });

                        sleep(500);
                    } catch (InterruptedException e) {
                        break;
                    }
                }
            }
        };

        try {
            progressBarThread.start();
            if (xml != null) {
                setTextLabel("Generating structure from xml");
                Document document = XMLUtils.parseDOMFromString(xml);
                if (document != null) {
                    System.out.println(XMLUtils.prettyPrintDOM(document));
                    setTextLabel("Creating steps from xml");
                    Element root = document.getDocumentElement();
                    if (root != null)
                        result = StepUtils.createStepFromXmlDomModel(parentObject, root);
                }
            }
        } catch (Throwable e) {
            result = e;
        } finally {
            try {
                progressBarThread.interrupt();

                display.asyncExec(new Runnable() {
                    public void run() {
                        setReturnCode(OK);
                        close();
                    }
                });

            } catch (Throwable e) {
            }
        }
    }

    public void setTextLabel(String text) {
        final Display display = getParentShell().getDisplay();
        final String labelText = text;
        display.asyncExec(new Runnable() {
            public void run() {
                if (!labelProgression.isDisposed())
                    labelProgression.setText(labelText);
            }
        });
    }

}