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1   /*
2    * Copyright 2006 John G. Wilson
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   */
17  
18  package org.codehaus.groovy.runtime.wrappers;
19  
20  import groovy.lang.GroovyObject;
21  import groovy.lang.MetaClass;
22  
23  import org.codehaus.groovy.runtime.InvokerHelper;
24  
25  /***
26   * @author John Wilson
27   *
28   */
29  
30  public class PojoWrapper extends Wrapper {
31    protected MetaClass delegate;
32    protected final Object wrapped;
33    
34    public PojoWrapper(final Object wrapped, final Class constrainedType) {
35      super(constrainedType);
36      this.wrapped = wrapped;
37      this.delegate = InvokerHelper.getMetaClass(wrapped);
38      
39      /*
40       * This check is temporary - remove before 1.0 release
41       */
42      
43      if (wrapped instanceof GroovyObject) {
44        throw new RuntimeException("trying to wrap the groovyObject "
45                                   + wrapped.getClass().getName()
46                                   + " in a PojoWrapper");
47      }
48    }
49    
50    public Object unwrap() {
51      return this.wrapped;
52    }
53    
54    /***
55     * Note the rest of these method will only be used post 1.0
56     */
57  
58    /* (non-Javadoc)
59     * @see groovy.lang.GroovyObject#getProperty(java.lang.String)
60     */
61    public Object getProperty(final String property) {
62      return this.delegate.getProperty(this.wrapped, property);
63    }
64  
65    /* (non-Javadoc)
66     * @see groovy.lang.GroovyObject#invokeMethod(java.lang.String, java.lang.Object)
67     */
68    public Object invokeMethod(final String methodName, final Object arguments) {
69      return this.delegate.invokeMethod(this.wrapped, methodName, arguments);
70    }
71  
72    /* (non-Javadoc)
73     * @see groovy.lang.GroovyObject#setMetaClass(groovy.lang.MetaClass)
74     */
75    public void setMetaClass(final MetaClass metaClass) {
76      this.delegate = metaClass;
77    }
78  
79    /* (non-Javadoc)
80     * @see groovy.lang.GroovyObject#setProperty(java.lang.String, java.lang.Object)
81     */
82    public void setProperty(final String property, final Object newValue) {
83      this.delegate.setProperty(this.wrapped, property, newValue);
84    }
85  
86    protected Object getWrapped() {
87      return this.wrapped;
88    }
89  
90    protected MetaClass getDelegatedMetaClass() {
91      return this.delegate;
92    }
93  }