Coverage Report - org.apache.maven.shared.jar.identification.hash.JarFileHashAnalyzer
 
Classes in this File Line Coverage Branch Coverage Complexity
JarFileHashAnalyzer
0%
0/12
0%
0/2
2
 
 1  
 package org.apache.maven.shared.jar.identification.hash;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import org.apache.maven.shared.jar.JarAnalyzer;
 23  
 import org.apache.maven.shared.jar.JarData;
 24  
 import org.codehaus.plexus.digest.Digester;
 25  
 import org.codehaus.plexus.digest.DigesterException;
 26  
 import org.codehaus.plexus.logging.AbstractLogEnabled;
 27  
 
 28  
 /**
 29  
  * Analyzer that calculates the hash code for the entire file. Can be used to detect an exact copy of the file.
 30  
  * <p/>
 31  
  * If you are not using Plexus, you must call {@link #setDigester(org.codehaus.plexus.digest.Digester)} before use
 32  
  *
 33  
  * @plexus.component role="org.apache.maven.shared.jar.identification.hash.JarHashAnalyzer" role-hint="file"
 34  
  */
 35  0
 public class JarFileHashAnalyzer
 36  
     extends AbstractLogEnabled
 37  
     implements JarHashAnalyzer
 38  
 {
 39  
     /**
 40  
      * The digester to use for computing the hash. Under Plexus, the default is SHA-1.
 41  
      *
 42  
      * @plexus.requirement role-hint="sha1"
 43  
      */
 44  
     private Digester digester;
 45  
 
 46  
     public String computeHash( JarAnalyzer jarAnalyzer )
 47  
     {
 48  0
         JarData jarData = jarAnalyzer.getJarData();
 49  
 
 50  0
         String result = jarData.getFileHash();
 51  0
         if ( result == null )
 52  
         {
 53  
             try
 54  
             {
 55  0
                 result = digester.calc( jarData.getFile() );
 56  0
                 jarData.setFileHash( result );
 57  
             }
 58  0
             catch ( DigesterException e )
 59  
             {
 60  0
                 getLogger().warn( "Unable to calculate the hashcode.", e );
 61  0
             }
 62  
         }
 63  0
         return result;
 64  
     }
 65  
 
 66  
     public void setDigester( Digester digester )
 67  
     {
 68  0
         this.digester = digester;
 69  0
     }
 70  
 }