XSDGetXPathAction.java

// ============================================================================
//
// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
// This source code is available under agreement available at
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
//
// You should have received a copy of the agreement
// along with this program; if not, write to Talend SA
// 9 rue Pages 92150 Suresnes, France
//
// ============================================================================
package com.amalto.workbench.actions;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.dnd.Clipboard;
import org.eclipse.swt.dnd.TextTransfer;
import org.eclipse.swt.dnd.Transfer;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.xsd.XSDConcreteComponent;
import org.eclipse.xsd.XSDElementDeclaration;
import org.eclipse.xsd.XSDParticle;
import org.eclipse.xsd.XSDTerm;

import com.amalto.workbench.editors.DataModelMainPage;
import com.amalto.workbench.i18n.Messages;
import com.amalto.workbench.image.EImage;
import com.amalto.workbench.image.ImageCache;
import com.amalto.workbench.utils.Util;

public class XSDGetXPathAction extends UndoAction {

    private static Log log = LogFactory.getLog(XSDGetXPathAction.class);

    private String xpath = null;

    public XSDGetXPathAction(DataModelMainPage page) {
        super(page);
        setImageDescriptor(ImageCache.getImage(EImage.COPY.getPath()));
        setText(Messages.XSDGetXPathAction_CopyXPath);
        setToolTipText(Messages.XSDGetXPathAction_CopyTheXPath);
    }

    @Override
    public IStatus doAction() {
        try {

            IStructuredSelection selection = (IStructuredSelection) page.getTreeViewer().getSelection();
            XSDParticle particle = (XSDParticle) selection.getFirstElement();
            XSDTerm term = particle.getTerm();

            if (!(term instanceof XSDElementDeclaration))
                return Status.CANCEL_STATUS;

            Clipboard clipboard = Util.getClipboard();

            String path = ""; //$NON-NLS-1$
            TreeItem item = page.getTreeViewer().getTree().getSelection()[0];
            do {
                XSDConcreteComponent component = (XSDConcreteComponent) item.getData();
                if (component instanceof XSDParticle) {
                    if (((XSDParticle) component).getTerm() instanceof XSDElementDeclaration)
                        path = "/" + ((XSDElementDeclaration) ((XSDParticle) component).getTerm()).getName() + path; //$NON-NLS-1$
                } else if (component instanceof XSDElementDeclaration) {
                    path = ((XSDElementDeclaration) component).getName() + path;
                }
                // System.out.println("          "+path+ "             $$"+component.toString()+"$$");
                item = item.getParentItem();
            } while (item != null);

            xpath = path;

            clipboard.setContents(new Object[] { path }, new Transfer[] { TextTransfer.getInstance() });
        } catch (Exception e) {
            log.error(e.getMessage(), e);
            MessageDialog.openError(page.getSite().getShell(), Messages._Error,
                    Messages.bind(Messages.XSDGetXPathAction_ErrorMsg, e.getLocalizedMessage()));
            return Status.CANCEL_STATUS;
        }
        return Status.OK_STATUS;
    }

    @Override
    public void runWithEvent(Event event) {
        super.runWithEvent(event);
    }

    public String getCopiedXpath() {
        return xpath;
    }
}