package brn.gui.linktable.diagram.providers;

import java.text.FieldPosition;
import java.text.MessageFormat;
import java.util.Collections;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.emf.transaction.util.TransactionUtil;
import org.eclipse.gmf.runtime.common.core.command.ICommand;
import org.eclipse.gmf.runtime.common.core.command.UnexecutableCommand;
import org.eclipse.gmf.runtime.common.ui.services.parser.IParserEditStatus;
import org.eclipse.gmf.runtime.common.ui.services.parser.ParserEditStatus;
import org.eclipse.gmf.runtime.emf.commands.core.command.CompositeTransactionalCommand;
import brn.gui.linktable.diagram.part.LinkTableDiagramEditorPlugin;

/**
 * @generated
 */
public class ModelStructuralFeatureParser extends ModelAbstractParser {

  /**
   * @generated
   */
  private static final MessageFormat DEFAULT_PROCESSOR = new MessageFormat(
      "{0}"); //$NON-NLS-1$

  /**
   * @generated
   */
  private EStructuralFeature feature;

  /**
   * @generated
   */
  public ModelStructuralFeatureParser(EStructuralFeature feature) {
    this.feature = feature;
  }

  /**
   * @generated
   */
  protected MessageFormat getViewProcessor() {
    MessageFormat processor = super.getViewProcessor();
    return processor == null ? DEFAULT_PROCESSOR : processor;
  }

  /**
   * @generated
   */
  protected MessageFormat getEditProcessor() {
    MessageFormat processor = super.getEditProcessor();
    return processor == null ? DEFAULT_PROCESSOR : processor;
  }

  /**
   * @generated
   */
  protected String getStringByPattern(IAdaptable adapter, int flags,
      String pattern, MessageFormat processor) {
    EObject element = (EObject) adapter.getAdapter(EObject.class);
    Object value = element.eGet(feature);
    value = getValidValue(feature, value);
    return processor.format(new Object[] { value }, new StringBuffer(),
        new FieldPosition(0)).toString();
  }

  /**
   * @generated
   */
  protected IParserEditStatus validateValues(Object[] values) {
    if (values.length > 1) {
      return ParserEditStatus.UNEDITABLE_STATUS;
    }
    Object value = values.length == 1 ? values[0] : null;
    value = getValidNewValue(feature, value);
    if (value instanceof InvalidValue) {
      return new ParserEditStatus(LinkTableDiagramEditorPlugin.ID,
          IParserEditStatus.UNEDITABLE, value.toString());
    }
    return ParserEditStatus.EDITABLE_STATUS;
  }

  /**
   * @generated
   */
  public ICommand getParseCommand(IAdaptable adapter, Object[] values) {
    EObject element = (EObject) adapter.getAdapter(EObject.class);
    if (element == null) {
      return UnexecutableCommand.INSTANCE;
    }
    TransactionalEditingDomain editingDomain = TransactionUtil
        .getEditingDomain(element);
    if (editingDomain == null) {
      return UnexecutableCommand.INSTANCE;
    }
    Object value = values.length == 1 ? values[0] : null;
    ICommand command = getModificationCommand(element, feature, value);
    return new CompositeTransactionalCommand(editingDomain, command.getLabel(),
        Collections.singletonList(command));
  }

  /**
   * @generated
   */
  public boolean isAffectingEvent(Object event, int flags) {
    if (event instanceof Notification) {
      if (feature == ((Notification) event).getFeature()) {
        return true;
      }
    }
    return false;
  }
}
