package org.apache.maven.plugin.dependency.utils;

 /*

  * 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 java.io.BufferedReader;

 import java.io.File;

 import java.io.FileWriter;

 import java.io.IOException;

 import java.io.StringReader;

 import org.apache.maven.artifact.Artifact;

 import org.apache.maven.plugin.logging.Log;

 import org.codehaus.plexus.util.IOUtil;

 import org.codehaus.plexus.util.StringUtils;

 /**

  * Utility class with static helper methods

  * 

  * @author <a href="mailto:brianf@apache.org">Brian Fox</a>

  * @version $Id: DependencyUtil.java 1200108 2011-11-10 03:05:47Z carlos $

  */

 public final class DependencyUtil

 {

     /**

      * Builds the file name. If removeVersion is set, then the file name must be reconstructed from the artifactId,

      * Classifier (if used) and Type. Otherwise, this method returns the artifact file name.

      * 

      * @param artifact File to be formatted.

      * @param removeVersion Specifies if the version should be removed from the file name.

      * @return Formatted file name in the format artifactId-[version]-[classifier].[type]

      * @see {@link #getFormattedFileName(Artifact, boolean, boolean)}.

      */

     public static String getFormattedFileName( Artifact artifact, boolean removeVersion )

     {

         return getFormattedFileName( artifact, removeVersion, false );

     }

     /**

      * Builds the file name. If removeVersion is set, then the file name must be

      * reconstructed from the groupId (if <b>prependGroupId</b> is true) artifactId,

      * Classifier (if used) and Type.

      * Otherwise, this method returns the artifact file name.

      * 

      * @param artifact

      *            File to be formatted.

      * @param removeVersion

      *            Specifies if the version should be removed from the file name.

      * @param prependGroupId

      *            Specifies if the groupId should be prepended to the file name.

      * @return Formatted file name in the format

      *         [groupId].artifactId-[version]-[classifier].[type]

      */

     public static String getFormattedFileName( Artifact artifact, boolean removeVersion, boolean prependGroupId )

     {

         StringBuffer destFileName = new StringBuffer();

         if ( prependGroupId )

         {

             destFileName.append( artifact.getGroupId() ).append( "." );

         }

         String versionString = null;

         if ( !removeVersion )

         {

             versionString = "-" + artifact.getVersion();

         }

         else

         {

             versionString = "";

         }

         String classifierString = "";

         if ( StringUtils.isNotEmpty( artifact.getClassifier() ) )

         {

             classifierString = "-" + artifact.getClassifier();

         }

         destFileName.append( artifact.getArtifactId() ).append( versionString );

         destFileName.append( classifierString ).append( "." );

         destFileName.append( artifact.getArtifactHandler().getExtension() );

         return destFileName.toString();

     }

     /**

      * Formats the outputDirectory based on type.

      * 

      * @param useSubdirsPerType if a new sub directory should be used for each type.

      * @param useSubdirPerArtifact if a new sub directory should be used for each artifact.

      * @param useRepositoryLayout if dependencies must be moved into a Maven repository layout, if set, other settings

      *            will be ignored.

      * @param removeVersion if the version must not be mentioned in the filename

      * @param outputDirectory base outputDirectory.

      * @param artifact information about the artifact.

      * @return a formatted File object to use for output.

      */

     public static File getFormattedOutputDirectory( boolean useSubdirsPerScope, boolean useSubdirsPerType,

                                                     boolean useSubdirPerArtifact, boolean useRepositoryLayout,

                                                     boolean removeVersion, File outputDirectory, Artifact artifact )

     {

         StringBuffer sb = new StringBuffer( 128 );

         if ( useRepositoryLayout )

         {

             // group id

             sb.append( artifact.getGroupId().replace( '.', File.separatorChar ) ).append( File.separatorChar );

             // artifact id

             sb.append( artifact.getArtifactId() ).append( File.separatorChar );

             // version

             sb.append( artifact.getBaseVersion() ).append( File.separatorChar );

         }

         else

         {

             if ( useSubdirsPerScope )

             {

                 sb.append( artifact.getScope() ).append( File.separatorChar );

             }

             if ( useSubdirsPerType )

             {

                 sb.append( artifact.getType() ).append( "s" ).append( File.separatorChar );

             }

             if ( useSubdirPerArtifact )

             {

                 String artifactString = getDependencyId( artifact, removeVersion );

                 sb.append( artifactString ).append( File.separatorChar );

             }

         }

         return new File( outputDirectory, sb.toString() );

     }

     private static String getDependencyId( Artifact artifact, boolean removeVersion )

     {

         StringBuffer sb = new StringBuffer();

         sb.append( artifact.getArtifactId() );

         if ( StringUtils.isNotEmpty( artifact.getClassifier() ) )

         {

             sb.append( "-" );

             sb.append( artifact.getClassifier() );

         }

         if ( !removeVersion )

         {

             sb.append( "-" );

             sb.append( artifact.getVersion() );

             sb.append( "-" );

             sb.append( artifact.getType() );

         }

         else

         {

             // if the classifier and type are the same (sources), then don't

             // repeat.

             // avoids names like foo-sources-sources

             if ( !StringUtils.equals( artifact.getClassifier(), artifact.getType() ) )

             {

                 sb.append( "-" );

                 sb.append( artifact.getType() );

             }

         }

         return sb.toString();

     }

     /**

      * Writes the specified string to the specified file.

      * 

      * @param string the string to write

      * @param file the file to write to

      * @throws IOException if an I/O error occurs

      */

     public static synchronized void write( String string, File file, boolean append, Log log )

         throws IOException

     {

         file.getParentFile().mkdirs();

         FileWriter writer = null;

         try

         {

             writer = new FileWriter( file, append );

             writer.write( string );

         }

         finally

         {

             IOUtil.close( writer );

         }

     }

     /**

      * Writes the specified string to the log at info level.

      * 

      * @param string the string to write

      * @throws IOException if an I/O error occurs

      */

     public static synchronized void log( String string, Log log )

         throws IOException

     {

         BufferedReader reader = new BufferedReader( new StringReader( string ) );

         String line;

         while ( ( line = reader.readLine() ) != null )

         {

             log.info( line );

         }

         reader.close();

     }

     //

     // mainly used to parse excludes,includes configuration

     //

     public static String[] tokenizer( String str )

     {

         return StringUtils.split( cleanToBeTokenizedString( str ), "," );

     }

     //

     // clean up configuration string before it can be tokenized

     //

     public static String cleanToBeTokenizedString( String str )

     {

         String ret = "";

         if ( !StringUtils.isEmpty( str ) )

         {

             // remove initial and ending spaces, plus all spaces next to commas 

             ret = str.trim().replaceAll( "[\\s]*,[\\s]*", "," );

         }

         return ret;

     }

 }