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      1 /*
      2  * Copyright 2001-2009 OFFIS, Tammo Freese
      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 package org.easymock.internal.matchers;
     17 
     18 import java.io.Serializable;
     19 
     20 import org.easymock.IArgumentMatcher;
     21 
     22 public class InstanceOf implements IArgumentMatcher, Serializable {
     23 
     24     private static final long serialVersionUID = -551735356674347591L;
     25 
     26     private final Class<?> clazz;
     27 
     28     public InstanceOf(Class<?> clazz) {
     29         this.clazz = clazz;
     30     }
     31 
     32     public boolean matches(Object actual) {
     33         return (actual != null) && clazz.isAssignableFrom(actual.getClass());
     34     }
     35 
     36     public void appendTo(StringBuffer buffer) {
     37         buffer.append("isA(" + clazz.getName() + ")");
     38     }
     39 }
     40