/*
    * Copyright 2003 - 2013 The eFaps Team
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *     http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   * Revision:        $Rev$
   * Last Changed:    $Date$
   * Last Changed By: $Author$
   */
  
  
  package org.efaps.bpm.compiler;
  
  import java.util.Properties;
  
  import org.drools.compiler.builder.impl.KnowledgeBuilderConfigurationImpl;
  import org.drools.compiler.builder.impl.KnowledgeBuilderImpl;
  import org.efaps.admin.program.esjp.EFapsClassLoader;
  import org.kie.api.KieBaseConfiguration;
  import org.kie.internal.KnowledgeBase;
  import org.kie.internal.KnowledgeBaseFactory;
  import org.kie.internal.builder.KnowledgeBuilderError;
  import org.kie.internal.builder.KnowledgeBuilderErrors;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  
  /**
   * TODO comment!
   *
   * @author The eFaps Team
   * @version $Id$
   */
  public class KnowledgeBuilder
      extends KnowledgeBuilderImpl
  {
      /**
       * Logging instance used in this class.
       */
      private static final Logger LOG = LoggerFactory.getLogger(KnowledgeBuilder.class);
  
      /**
       * @param _pkgBuilder package builder
       */
      public KnowledgeBuilder(final KnowledgeBuilderConfigurationImpl _pkgBuilder)
      {
          super(_pkgBuilder);
      }
  
      @Override
      public KnowledgeBase newKnowledgeBase()
      {
          final KnowledgeBuilderErrors errors = getErrors();
          if (errors.size() > 0) {
              for (final KnowledgeBuilderError error : errors) {
                  KnowledgeBuilder.LOG.error(error.toString());
              }
              throw new IllegalArgumentException("Could not parse knowledge.");
          }
          final KieBaseConfiguration conf = KnowledgeBaseFactory.newKnowledgeBaseConfiguration(new Properties(),
                          EFapsClassLoader.getInstance());
          final KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase(conf);
          kbase.addKnowledgePackages(getKnowledgePackages());
          return kbase;
      }
  }