org.ow2.bonita.parsing.binding.TransitionBinding Maven / Gradle / Ivy

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/**
 * Copyright (C) 2006  Bull S. A. S.
 * Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation
 * version 2.1 of the License.
 * This library 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 Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public License along with this
 * program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA  02110-1301, USA.
 **/
package org.ow2.bonita.parsing.binding;

import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.ow2.bonita.pvm.internal.util.XmlUtil;
import org.ow2.bonita.pvm.internal.xml.Parse;
import org.ow2.bonita.pvm.internal.xml.Parser;
import org.ow2.bonita.facade.def.element.ConditionDefinition;
import org.ow2.bonita.facade.def.element.ConditionDefinition.Type;
import org.ow2.bonita.facade.def.element.impl.ConditionDefinitionImpl;
import org.ow2.bonita.facade.def.majorElement.TransitionDefinition;
import org.ow2.bonita.facade.def.majorElement.impl.TransitionDefinitionImpl;
import org.ow2.bonita.facade.uuid.PackageDefinitionUUID;
import org.ow2.bonita.facade.uuid.ProcessDefinitionUUID;
import org.ow2.bonita.facade.uuid.TransitionDefinitionUUID;
import org.ow2.bonita.services.util.ServiceEnvTool;
import org.w3c.dom.Element;

/**
 * @author Marc Blachon, Guillaume Porcher, Charles Souillard, Miguel Valdes, Pierre Vigneras
 */
public class TransitionBinding extends MajorElementBinding {

  public TransitionBinding() {
    super("Transition");
  }

  private static final Logger LOG = Logger.getLogger(PackageBinding.class.getName());

  public Object parse(final Element transitionElement, final Parse parse, final Parser parser) {
    if (LOG.isLoggable(Level.FINE)) {
      LOG.fine("parsing element = " + transitionElement);
    }

    final String id = getId(transitionElement);
    final String name = getName(transitionElement);

    final TransitionDefinitionUUID recordUUID =
      ServiceEnvTool.getUUIDGenerator().getTransitionDefinitionUUID(
          getObject(ProcessDefinitionUUID.class, parse),
          id);
    parse.pushObject(recordUUID);

    final String description = getChildTextContent(transitionElement, "Description");

    ConditionDefinition condition = null;
    final Element conditionElement = XmlUtil.element(transitionElement, "Condition");
    if (conditionElement != null) {

      final String contentAsString = conditionElement.getTextContent();
      if (contentAsString == null || "".equals(contentAsString.trim())) {
        parse.addProblem("Condition is empty on transition " + id);
      }
      final Type type = getEnumValue(Type.class, XmlUtil.attribute(conditionElement, "Type"), null);
      final List xpressionElements = XmlUtil.elements(conditionElement, "Xpression");
      if (xpressionElements != null && !xpressionElements.isEmpty()) {
        parse.addProblem("Element Xpression not supported on Condition element");
      }
      condition = new ConditionDefinitionImpl(contentAsString, type, null, null);
    }

    final String from = XmlUtil.attribute(transitionElement, "From");
    if (from == null) {
      parse.addProblem("From attribute is not defined on transition: " + id);
    }

    final String to = XmlUtil.attribute(transitionElement, "To");
    if (to == null) {
      parse.addProblem("To attribute is not defined on transition: " + id);
    }

    final TransitionDefinition transition = new TransitionDefinitionImpl(recordUUID, id,
        getObject(PackageDefinitionUUID.class, parse), getObject(ProcessDefinitionUUID.class, parse),
        condition, description, from, name, to);

    parse.popObject();
    return transition;
  }

}