AbstractMvnProjectContentProviderEditorAction.java

package org.bundlemaker.core.ui.mvn;

import org.bundlemaker.core.mvn.content.MvnContentProvider;
import org.bundlemaker.core.ui.ErrorDialogUtil;
import org.bundlemaker.core.ui.projecteditor.provider.IProjectContentProviderEditorElement;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.progress.IProgressService;

/**
 * <p>
 * </p>
 * 
 * @author Gerd Wütherich (gerd@gerd-wuetherich.de)
 */
public abstract class AbstractMvnProjectContentProviderEditorAction extends Action {

  /** the editor */
  private MvnProjectContentProviderEditor _editor;

  /**
   * <p>
   * Creates a new instance of type {@link AbstractMvnProjectContentProviderEditorAction}.
   * </p>
   * 
   * @param text
   * @param editor
   */
  public AbstractMvnProjectContentProviderEditorAction(String text, MvnProjectContentProviderEditor editor) {
    super(text);

    // assert
    Assert.isNotNull(editor);

    //
    _editor = editor;
  }

  /**
   * {@inheritDoc}
   */
  @Override
  public void run() {

    // get the progress services
    IProgressService ps = PlatformUI.getWorkbench().getProgressService();

    /** - */
    final Exception[] exception = new Exception[1];

    //
    try {
      ps.busyCursorWhile(new IRunnableWithProgress() {
        public void run(IProgressMonitor pm) {

          for (IProjectContentProviderEditorElement element : _editor.getCurrentSelection()) {

            //
            try {
              doWithMvnContentProvider((MvnContentProvider) element.getProjectContentProvider());
            } catch (Exception e) {
              exception[0] = e;
            }
          }
        }
      });

      if (exception[0] != null) {
        throw exception[0];
      }

    } catch (Exception e) {
      ErrorDialogUtil.errorDialogWithStackTrace("Error", e.getMessage(), Activator.PLUGIN_ID,
          ErrorDialogUtil.getNestedNonCoreThrowable(e));
    }
  }

  /**
   * <p>
   * Must be overridden to
   * </p>
   * 
   * @param element
   */
  protected abstract void doWithMvnContentProvider(MvnContentProvider element) throws Exception;
}