package org.apache.maven.plugin.resources.remote;
   
   /*
    * 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.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.resources.remote.io.xpp3.RemoteResourcesBundleXpp3Writer;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.codehaus.plexus.util.DirectoryScanner;
  import org.codehaus.plexus.util.FileUtils;
  import org.codehaus.plexus.util.ReaderFactory;
  import org.codehaus.plexus.util.StringUtils;
  
  import java.io.File;
  import java.io.FileWriter;
  import java.io.IOException;
  import java.io.Writer;
  import java.util.Arrays;
  import java.util.List;
  
  /**
   * Bundle up resources that should be considered as a remote-resource,
   * generating <code>META-INF/maven/remote-resources.xml</code> descriptor.
   */
  @Mojo( name = "bundle", defaultPhase = LifecyclePhase.GENERATE_RESOURCES, threadSafe = true )
  public class BundleRemoteResourcesMojo
      extends AbstractMojo
  {
      public static final String RESOURCES_MANIFEST = "META-INF/maven/remote-resources.xml";
  
      private static final String[] DEFAULT_INCLUDES = new String[]{ "**/*.txt", "**/*.vm", };
  
  
      /**
       * The directory which contains the resources you want packaged up in this resource bundle.
       */
      @Parameter( defaultValue = "${basedir}/src/main/resources" )
      private File resourcesDirectory;
  
      /**
       * The directory where you want the resource bundle manifest written to.
       */
      @Parameter( defaultValue = "${project.build.outputDirectory}", required = true )
      private File outputDirectory;
  
      /**
       * A list of files to include. Can contain ant-style wildcards and double wildcards.
       * The default includes are
       * <code>**&#47;*.txt   **&#47;*.vm</code>
       *
       * @since 1.0-alpha-5
       */
      @Parameter
      private String[] includes;
  
      /**
       * A list of files to exclude. Can contain ant-style wildcards and double wildcards.
       *
       * @since 1.0-alpha-5
       */
      @Parameter
      private String[] excludes;
  
      /**
       * Encoding of the bundle.
       *
       * @since 1.1
       */
      @Parameter( defaultValue = "${project.build.sourceEncoding}" )
      private String sourceEncoding;
  
      @Override
      public void execute()
          throws MojoExecutionException
      {
          if ( !resourcesDirectory.exists() )
          {
              getLog().info( "skip non existing resourceDirectory " + resourcesDirectory.getAbsolutePath() );
              return;
          }
 
         if ( StringUtils.isEmpty( sourceEncoding ) )
         {
             getLog().warn( "sourceEncoding has not been set, using platform encoding " + ReaderFactory.FILE_ENCODING
                                + ", i.e. build is platform dependent!" );
             sourceEncoding = ReaderFactory.FILE_ENCODING;
         }
 
         // Look at the content of the resourcesDirectory and create a manifest of the files
         // so that velocity can easily process any resources inside the JAR that need to be processed.
 
         RemoteResourcesBundle remoteResourcesBundle = new RemoteResourcesBundle();
         remoteResourcesBundle.setSourceEncoding( sourceEncoding );
 
         DirectoryScanner scanner = new DirectoryScanner();
 
         scanner.setBasedir( resourcesDirectory );
         if ( includes != null && includes.length != 0 )
         {
             scanner.setIncludes( includes );
         }
         else
         {
             scanner.setIncludes( DEFAULT_INCLUDES );
         }
 
         if ( excludes != null && excludes.length != 0 )
         {
             scanner.setExcludes( excludes );
         }
 
         scanner.addDefaultExcludes();
         scanner.scan();
 
         List<String> includedFiles = Arrays.asList( scanner.getIncludedFiles() );
 
         for ( String resource : includedFiles )
         {
             remoteResourcesBundle.addRemoteResource( StringUtils.replace( resource, '\\', '/' ) );
         }
 
         int n = remoteResourcesBundle.getRemoteResources().size();
         getLog().info( "Writing " + RESOURCES_MANIFEST + " descriptor with " + n + " entr"
             + ( ( n > 1 ) ? "ies" : "y" ) );
 
         RemoteResourcesBundleXpp3Writer w = new RemoteResourcesBundleXpp3Writer();
 
         File f = new File( outputDirectory, RESOURCES_MANIFEST );
 
         FileUtils.mkdir( f.getParentFile()
                           .getAbsolutePath() );
         
         try ( Writer writer = new FileWriter( f ) )
         {
             w.write( writer, remoteResourcesBundle );
         }
         catch ( IOException e )
         {
             throw new MojoExecutionException( "Error creating remote resources manifest.", e );
         }
     }
 }