org.ow2.bonita.util.EngineEnvTool 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.util;

import org.ow2.bonita.pvm.env.Environment;
import org.ow2.bonita.pvm.session.TimerSession;
import org.ow2.bonita.definition.activity.HookExecutor;
import org.ow2.bonita.services.Repository;
import org.ow2.bonita.services.util.ServiceEnvTool;

/**
 * This class holds the {@link EnvironmentFactory} singleton.
 *
 * The {@link EnvironmentFactory} returned by {@link #getEnvironmentFactory()} comes from the
 * parsing of the resource defined by the property
 * {@link #ENVIRONMENT_PROPERTY}. If this property has not been set, the
 * {@link #DEFAULT_ENVIRONMENT} resource is used and parsed.
 *
 * @author Marc Blachon, Guillaume Porcher, Charles Souillard, Miguel Valdes, Pierre Vigneras
 */
public class EngineEnvTool extends ServiceEnvTool {

  protected EngineEnvTool() { }


  protected static  T getEnvClass(final Class clazz) {
    final Environment environment = getEnv();
    final T object = environment.get(clazz);
    if (object == null) {
      throw new BonitaRuntimeException("No object of class " + clazz.getName() + " found in environment!");
    }
    return object;
  }

  public static Repository getRepository() {
    return getEnvClass(Repository.class);
  }

  public static HookExecutor getHookExecutor() {
    return getEnvClass(HookExecutor.class);
  }

  public static TimerSession getTimerSession() {
    return getEnvClass(TimerSession.class);
  }

}