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1   package org.codehaus.plexus.component.factory;
2   
3   /*
4    * Copyright 2001-2006 Codehaus Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  import org.codehaus.classworlds.ClassRealmAdapter;
20  import org.codehaus.plexus.PlexusContainer;
21  import org.codehaus.plexus.classworlds.realm.ClassRealm;
22  import org.codehaus.plexus.component.repository.ComponentDescriptor;
23  
24  /**
25   *
26   *
27   * @author Jason van Zyl
28   *
29   */
30  public abstract class AbstractComponentFactory implements ComponentFactory {
31      // This is for backward compatibility
32      private String id;
33  
34      public Object newInstance(ComponentDescriptor componentDescriptor, ClassRealm classRealm, PlexusContainer container)
35              throws ComponentInstantiationException {
36          // for backward-compatibility with the old component factories delegate to the old-style method
37          return newInstance(componentDescriptor, ClassRealmAdapter.getInstance(classRealm), container);
38      }
39  
40      protected Object newInstance(
41              ComponentDescriptor componentDescriptor,
42              org.codehaus.classworlds.ClassRealm classRealm,
43              PlexusContainer container)
44              throws ComponentInstantiationException {
45          throw new IllegalStateException(getClass().getName() + " does not implement component creation.");
46      }
47  }