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/**
 * Copyright 2008 Peach Jean Solutions
 * 
 * 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.
 */

package org.xj4.jmock;

import java.lang.reflect.Field;
import java.util.List;

import org.xj4.lifecycle.Lifecycle;
import org.xj4.XJ4TestClass;
import org.jmock.integration.junit4.JUnit4Mockery;
import org.jmock.Mockery;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;

/**
 * @author jbunting
 * @TODO Document Me!
 * Created by IntelliJ IDEA.
 * Date: Mar 5, 2008
 * Time: 9:03:36 AM
 */
public class MockeryLifecycle implements Lifecycle {

  private static final Log logger = LogFactory.getLog(MockeryLifecycle.class);
  
  public boolean supportsClassLevel() {
    // this could work, but it's really inadvisable to do it this way...
    return false;
  }

  public boolean supportsInstanceLevel() {
    return true;
  }

  public void start(XJ4TestClass testClass, Field field, Object target) {
    if(!field.getType().isAssignableFrom(JUnit4Mockery.class)) {
      throw new IllegalArgumentException("This lifecycle can only manage field " + field.getName() + " if it is of type " + Mockery.class.getName());
    }
    field.setAccessible(true);
    try {
      if(field.get(target) == null) {
        Mockery mockery = new JUnit4Mockery();
        field.set(target, mockery);
      }
    } catch(IllegalAccessException e) {
      throw new IllegalArgumentException("This lifecycle does not have permission to access field " + field.getName());
    }
  }

  public void stop(XJ4TestClass testClass, Field field, Object target) {
    try {
      Mockery mockery = (Mockery) field.get(target);
      mockery.assertIsSatisfied();
    } catch(IllegalAccessException e) {
      throw new IllegalArgumentException("This lifecycle does not have permission to access field " + field.getName());
    }
  }

  public Class requiredType() {
    return Mockery.class;
  }

  public boolean acceptsNull() {
    return true;
  }

  public void validate(List errors, Field field) {
    // we have nothing to validate
  }
}