ConstructorInstantiator


1   package org.jbpm.instantiation;
2   
3   import java.lang.reflect.*;
4   import org.apache.commons.logging.*;
5   
6   public class ConstructorInstantiator implements Instantiator {
7     
8     private static final Class  [] parameterTypes = new Class  [] {String  .class};
9   
10    public Object   instantiate(Class   clazz, String   configuration) {
11      Object   newInstance = null;
12      try {
13        Constructor constructor = clazz.getDeclaredConstructor( parameterTypes );
14        constructor.setAccessible(true);
15        newInstance = constructor.newInstance( new Object  [] { configuration } );
16      } catch (Exception   e) {
17        log.error( "couldn't instantiate '" + clazz.getName() + "'", e );
18        throw new RuntimeException  ( e );
19      }
20      return newInstance;
21    }
22  
23    private static final Log log = LogFactory.getLog(ConstructorInstantiator.class);
24  }
25

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