Coverage Report - org.apache.commons.flatfile.util.BasicFilterFactory
 
Classes in this File Line Coverage Branch Coverage Complexity
BasicFilterFactory
0%
0/15
0%
0/4
0
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.commons.flatfile.util;
 18  
 
 19  
 import java.io.InputStream;
 20  
 import java.lang.reflect.Constructor;
 21  
 
 22  
 /**
 23  
  * Basic FilterFactory that creates an instance of a given InputStream subclass with a (InputStream) constructor.
 24  
  * @version $Revision: 758023 $ $Date: 2009-03-24 16:09:19 -0500 (Tue, 24 Mar 2009) $
 25  
  */
 26  
 public class BasicFilterFactory extends FilterFactory {
 27  
     private static final long serialVersionUID = 9080292216759574895L;
 28  0
     private static final Class<?>[] PARAMETER_TYPES = new Class[] { InputStream.class };
 29  0
     private static final String HIERARCHY_ERROR = " does not inherit from "
 30  
             + InputStream.class.getName();
 31  
 
 32  
     private Constructor<? extends InputStream> constructor;
 33  
 
 34  
     /**
 35  
      * Create a new BasicFilterFactory instance.
 36  
      * @param clazz (Filter)InputStream type to instantiate.
 37  
      */
 38  0
     public BasicFilterFactory(Class<? extends InputStream> clazz) {
 39  0
         if (!InputStream.class.isAssignableFrom(clazz)) {
 40  0
             throw new IllegalArgumentException(clazz + HIERARCHY_ERROR);
 41  
         }
 42  
         try {
 43  0
             constructor = clazz.getConstructor(PARAMETER_TYPES);
 44  0
         } catch (Exception e) {
 45  0
             throw new IllegalArgumentException(clazz + ": " + e.toString());
 46  0
         }
 47  0
     }
 48  
 
 49  
     /**
 50  
      * {@inheritDoc}
 51  
      */
 52  
     protected InputStream iGetFilter(InputStream markIsSupported) {
 53  0
         if (constructor == null) {
 54  0
             throw new IllegalStateException();
 55  
         }
 56  
         try {
 57  0
             return constructor.newInstance(new Object[] { markIsSupported });
 58  0
         } catch (Exception e) {
 59  0
             throw new RuntimeException(e);
 60  
         }
 61  
     }
 62  
 }