package org.apache.maven.shared.transfer.project.deploy.internal;
   
   /*
    * 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.File;
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.metadata.ArtifactMetadata;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.project.ProjectBuildingRequest;
  import org.apache.maven.project.artifact.ProjectArtifactMetadata;
  import org.apache.maven.shared.transfer.artifact.deploy.ArtifactDeployer;
  import org.apache.maven.shared.transfer.artifact.deploy.ArtifactDeployerException;
  import org.apache.maven.shared.transfer.project.MavenAetherUtils;
  import org.apache.maven.shared.transfer.project.NoFileAssignedException;
  import org.apache.maven.shared.transfer.project.deploy.ProjectDeployer;
  import org.apache.maven.shared.transfer.project.deploy.ProjectDeployerRequest;
  import org.apache.maven.shared.transfer.repository.RepositoryManager;
  import org.codehaus.plexus.component.annotations.Component;
  import org.codehaus.plexus.component.annotations.Requirement;
  import org.codehaus.plexus.util.FileUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * This will deploy a whole project into the appropriate remote repository.
   * 
   * @author Karl Heinz Marbaise <a href="mailto:khmarbaise@apache.org">khmarbaise@apache.org</a> Most of the code is
   *         taken from maven-deploy-plugin.
   */
  @Component( role = ProjectDeployer.class )
  class DefaultProjectDeployer
      implements ProjectDeployer
  {
      private static final Logger LOGGER = LoggerFactory.getLogger( DefaultProjectDeployer.class );
  
      @Requirement
      private ArtifactDeployer deployer;
  
      @Requirement
      private RepositoryManager repositoryManager;
  
      private final DualDigester digester = new DualDigester();
  
      /**
       * {@inheritDoc}
       */
      public void deploy( ProjectBuildingRequest buildingRequest, ProjectDeployerRequest projectDeployerRequest,
                          ArtifactRepository artifactRepository )
          throws NoFileAssignedException, IllegalArgumentException, ArtifactDeployerException
      {
          validateParameters( buildingRequest, projectDeployerRequest, artifactRepository );
  
          MavenAetherUtils.importAetherLibrary();
  
          Artifact artifact = projectDeployerRequest.getProject().getArtifact();
          String packaging = projectDeployerRequest.getProject().getPackaging();
          File pomFile = projectDeployerRequest.getProject().getFile();
  
          List<Artifact> attachedArtifacts = projectDeployerRequest.getProject().getAttachedArtifacts();
  
          // Deploy the POM
          boolean isPomArtifact = "pom".equals( packaging );
          if ( isPomArtifact )
          {
              artifact.setFile( pomFile );
          }
          else
          {
              ProjectArtifactMetadata metadata = new ProjectArtifactMetadata( artifact, pomFile );
              artifact.addMetadata( metadata );
          }
  
          // What consequence does this have?
          // artifact.setRelease( true );
  
          artifact.setRepository( artifactRepository );
  
         int retryFailedDeploymentCount = projectDeployerRequest.getRetryFailedDeploymentCount();
 
         List<Artifact> deployableArtifacts = new ArrayList<Artifact>();
         if ( isPomArtifact )
         {
             deployableArtifacts.add( artifact );
         }
         else
         {
             File file = artifact.getFile();
 
             if ( file != null && file.isFile() )
             {
                 deployableArtifacts.add( artifact );
             }
             else if ( !attachedArtifacts.isEmpty() )
             {
                 // TODO: Reconsider this exception? Better Exception type?
                 throw new NoFileAssignedException( "The packaging plugin for this project did not assign "
                     + "a main file to the project but it has attachments. Change packaging to 'pom'." );
             }
             else
             {
                 // TODO: Reconsider this exception? Better Exception type?
                 throw new NoFileAssignedException( "The packaging for this project did not assign "
                     + "a file to the build artifact" );
             }
         }
 
         for ( Artifact attached : attachedArtifacts )
         {
             deployableArtifacts.add( attached );
         }
 
         installChecksumsForAllArtifacts( buildingRequest, deployableArtifacts );
         deploy( buildingRequest, deployableArtifacts, artifactRepository, retryFailedDeploymentCount );
     }
 
     private void validateParameters( ProjectBuildingRequest buildingRequest,
                                      ProjectDeployerRequest projectDeployerRequest,
                                      ArtifactRepository artifactRepository )
     {
         if ( buildingRequest == null )
         {
             throw new IllegalArgumentException( "The parameter buildingRequest is not allowed to be null." );
         }
         if ( projectDeployerRequest == null )
         {
             throw new IllegalArgumentException( "The parameter projectDeployerRequest is not allowed to be null." );
         }
         if ( artifactRepository == null )
         {
             throw new IllegalArgumentException( "The parameter artifactRepository is not allowed to be null." );
         }
     }
 
     private void installChecksumsForAllArtifacts( ProjectBuildingRequest request, Collection<Artifact> artifacts )
     {
         for ( Artifact item : artifacts )
         {
             try
             {
                 LOGGER.debug( "Installing checksum for " + item.getId() );
                 installChecksums( request, item );
             }
             catch ( IOException e )
             {
                 // THINK HARD ABOUT IT
                 LOGGER.error( "Failure during checksum generation for " + item.getId() );
             }
         }
     }
 
     private void deploy( ProjectBuildingRequest request, Collection<Artifact> artifacts,
                          ArtifactRepository deploymentRepository, int retryFailedDeploymentCount )
         throws ArtifactDeployerException
     {
 
         // for now retry means redeploy the complete artifacts collection
         int retryFailedDeploymentCounter = Math.max( 1, Math.min( 10, retryFailedDeploymentCount ) );
         ArtifactDeployerException exception = null;
         for ( int count = 0; count < retryFailedDeploymentCounter; count++ )
         {
             try
             {
                 if ( count > 0 )
                 {
                     LOGGER.info( "Retrying deployment attempt " + ( count + 1 ) + " of "
                         + retryFailedDeploymentCounter );
                 }
 
                 deployer.deploy( request, deploymentRepository, artifacts );
                 exception = null;
                 break;
             }
             catch ( ArtifactDeployerException e )
             {
                 if ( count + 1 < retryFailedDeploymentCounter )
                 {
                     LOGGER.warn( "Encountered issue during deployment: " + e.getLocalizedMessage() );
                     LOGGER.debug( e.getMessage() );
                 }
                 if ( exception == null )
                 {
                     exception = e;
                 }
             }
         }
         if ( exception != null )
         {
             throw exception;
         }
     }
 
     /**
      * @param buildingRequest The project building request, must not be <code>null</code>.
      * @param artifact The artifact for which to create checksums, must not be <code>null</code>.
      * @throws IOException If the checksums could not be installed.
      */
     private void installChecksums( ProjectBuildingRequest buildingRequest, Artifact artifact )
         throws IOException
     {
         File artifactFile = getLocalRepoFile( buildingRequest, artifact );
         installChecksums( artifactFile );
     }
 
     /**
      * Installs the checksums for the specified metadata files.
      *
      * @param metadataFiles The collection of metadata files to install checksums for, must not be <code>null</code>.
      * @throws IOException If the checksums could not be installed.
      */
     private void installChecksums( Collection<File> metadataFiles )
         throws IOException
     {
         for ( File metadataFile : metadataFiles )
         {
             installChecksums( metadataFile );
         }
     }
 
     /**
      * Installs the checksums for the specified file (if it exists).
      *
      * @param installedFile The path to the already installed file in the local repo for which to generate checksums,
      *            must not be <code>null</code>.
      * @throws IOException In case of errors. Could not install checksums.
      */
     private void installChecksums( File installedFile )
         throws IOException
     {
         boolean signatureFile = installedFile.getName().endsWith( ".asc" );
         if ( installedFile.isFile() && !signatureFile )
         {
             LOGGER.debug( "Calculating checksums for " + installedFile );
             digester.calculate( installedFile );
             installChecksum( installedFile, ".md5", digester.getMd5() );
             installChecksum( installedFile, ".sha1", digester.getSha1() );
         }
     }
 
     /**
      * Installs a checksum for the specified file.
      *
      * @param installedFile The base path from which the path to the checksum files is derived by appending the given
      *            file extension, must not be <code>null</code>.
      * @param ext The file extension (including the leading dot) to use for the checksum file, must not be
      *            <code>null</code>.
      * @param checksum the checksum to write
      * @throws IOException If the checksum could not be installed.
      */
     private void installChecksum( File installedFile, String ext, String checksum )
         throws IOException
     {
         File checksumFile = new File( installedFile.getAbsolutePath() + ext );
         LOGGER.debug( "Installing checksum to " + checksumFile );
         try
         {
             // noinspection ResultOfMethodCallIgnored
             checksumFile.getParentFile().mkdirs();
             FileUtils.fileWrite( checksumFile.getAbsolutePath(), "UTF-8", checksum );
         }
         catch ( IOException e )
         {
             throw new IOException( "Failed to install checksum to " + checksumFile, e );
         }
     }
 
     /**
      * Gets the path of the specified artifact within the local repository. Note that the returned path need not exist
      * (yet).
      *
      * @param buildingRequest The project building request, must not be <code>null</code>.
      * @param artifact The artifact whose local repo path should be determined, must not be <code>null</code>.
      * @return The absolute path to the artifact when installed, never <code>null</code>.
      */
     private File getLocalRepoFile( ProjectBuildingRequest buildingRequest, Artifact artifact )
     {
         String path = repositoryManager.getPathForLocalArtifact( buildingRequest, artifact );
         return new File( repositoryManager.getLocalRepositoryBasedir( buildingRequest ), path );
     }
 
     /**
      * Gets the path of the specified artifact metadata within the local repository. Note that the returned path need
      * not exist (yet).
      *
      * @param buildingRequest The project building request, must not be <code>null</code>.
      * @param metadata The artifact metadata whose local repo path should be determined, must not be <code>null</code>.
      * @return The absolute path to the artifact metadata when installed, never <code>null</code>.
      */
     private File getLocalRepoFile( ProjectBuildingRequest buildingRequest, ArtifactMetadata metadata )
     {
         String path = repositoryManager.getPathForLocalMetadata( buildingRequest, metadata );
         return new File( repositoryManager.getLocalRepositoryBasedir( buildingRequest ), path );
     }
 
 }