package org.apache.maven.shared.jar.identification.exposers;

 /*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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.

  */

 import org.apache.maven.shared.jar.JarAnalyzer;

 import org.apache.maven.shared.jar.identification.JarIdentification;

 import org.apache.maven.shared.jar.identification.JarIdentificationExposer;

 import org.codehaus.plexus.util.FileUtils;

 import java.util.regex.Matcher;

 import java.util.regex.Pattern;

 /**

  * Exposer that examines a JAR file to derive Maven metadata from the pattern of the JAR's filename.

  * Will match the format <i>artifactId</i>-<i>version</i>.jar.

  *

  * @plexus.component role="org.apache.maven.shared.jar.identification.JarIdentificationExposer" role-hint="filename"

  */

 public class FilenameExposer

     implements JarIdentificationExposer

 {

     private static final Pattern VERSION_PATTERN = Pattern.compile( "-[0-9]" );

     public void expose( JarIdentification identification, JarAnalyzer jarAnalyzer )

     {

         String filename = FileUtils.removeExtension( jarAnalyzer.getFile().getName() );

         Matcher mat = VERSION_PATTERN.matcher( filename );

         if ( mat.find() )

         {

             String prefix = filename.substring( 0, mat.start() );

             identification.addArtifactId( prefix );

             identification.addName( prefix );

             identification.addVersion( filename.substring( mat.end() - 1 ) );

         }

         else

         {

             identification.addArtifactId( filename );

             identification.addName( filename );

         }

     }

 }