DownloadStorageHandler.java

package rocks.inspectit.ui.rcp.handlers;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.collections.CollectionUtils;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.handlers.HandlerUtil;

import rocks.inspectit.ui.rcp.provider.IStorageDataProvider;
import rocks.inspectit.ui.rcp.wizard.DownloadStorageWizard;

/**
 * Handler for downloading the complete storage.
 *
 * @author Ivan Senic
 *
 */
public class DownloadStorageHandler extends AbstractHandler implements IHandler {

	/**
	 * {@inheritDoc}
	 */
	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {
		ISelection selection = HandlerUtil.getCurrentSelection(event);
		if (selection instanceof StructuredSelection) {
			List<IStorageDataProvider> storageDataProviders = new ArrayList<>();
			for (Iterator<?> it = ((StructuredSelection) selection).iterator(); it.hasNext();) {
				IStorageDataProvider storageDataProvider = (IStorageDataProvider) it.next();
				storageDataProviders.add(storageDataProvider);
			}

			if (CollectionUtils.isNotEmpty(storageDataProviders)) {
				WizardDialog wizardDialog = new WizardDialog(HandlerUtil.getActiveShell(event), new DownloadStorageWizard(storageDataProviders));
				wizardDialog.open();
			}
		}
		return null;
	}
}