package org.apache.maven.wagon.providers.ssh.external;
   
   /*
    * 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.wagon.AbstractWagon;
  import org.apache.maven.wagon.ConnectionException;
  import org.apache.maven.wagon.InputData;
  import org.apache.maven.wagon.OutputData;
  import org.apache.maven.wagon.ResourceDoesNotExistException;
  import org.apache.maven.wagon.TransferFailedException;
  import org.apache.maven.wagon.authentication.AuthenticationException;
  import org.apache.maven.wagon.authorization.AuthorizationException;
  import org.apache.maven.wagon.resource.Resource;
  import org.codehaus.plexus.component.annotations.Component;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.util.Properties;
  
  /**
   * NOTE: Plexus will only pick this correctly if the Class package and name are the same as that in core. This is
   * because the core component descriptor is read, but the class is read from the latter JAR.
   */
  @Component( role = org.apache.maven.wagon.Wagon.class,  hint = "scpexe", instantiationStrategy = "per-lookup" )
  public class ScpExternalWagon
      extends AbstractWagon
  {
      public void get( String resourceName, File destination )
          throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException
      {
          InputData inputData = new InputData();
  
          Resource resource = new Resource( resourceName );
  
          fireGetInitiated( resource, destination );
  
          inputData.setResource( resource );
  
          fillInputData( inputData );
  
          InputStream is = inputData.getInputStream();
  
          if ( is == null )
          {
              throw new TransferFailedException(
                  getRepository().getUrl() + " - Could not open input stream for resource: '" + resource + "'" );
          }
  
          createParentDirectories( destination );
  
          getTransfer( inputData.getResource(), destination, is );
      }
  
      public boolean getIfNewer( String resourceName, File destination, long timestamp )
          throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException
      {
          return false;
      }
  
      public void put( File source, String resourceName )
          throws TransferFailedException, ResourceDoesNotExistException, AuthorizationException
      {
          OutputData outputData = new OutputData();
  
          Resource resource = new Resource( resourceName );
  
          firePutInitiated( resource, source );
  
          outputData.setResource( resource );
  
          writeTestProperties( source.getParentFile() );
  
          fillOutputData( outputData );
  
          OutputStream os = outputData.getOutputStream();
  
          if ( os == null )
         {
             throw new TransferFailedException(
                 getRepository().getUrl() + " - Could not open output stream for resource: '" + resource + "'" );
         }
 
         putTransfer( outputData.getResource(), source, os, true );
     }
 
     public void closeConnection()
         throws ConnectionException
     {
     }
 
     public void fillInputData( InputData inputData )
         throws TransferFailedException, ResourceDoesNotExistException
     {
         try
         {
             String resName = inputData.getResource().getName();
             InputStream is = null;
             if ( resName.endsWith( ".sha1" ) )
             {
                 is = new ByteArrayInputStream( "c96e29be962f9d8123b584b8f51d66b347d268d4".getBytes( "UTF-8" ) );
             }
             else if ( resName.endsWith( ".md5" ) )
             {
                 is = new ByteArrayInputStream( "d2b637ab8965308490bc6482c860dfc5".getBytes( "UTF-8" ) );
             }
             else
             {
                 is = new ByteArrayInputStream( "<metadata />".getBytes( "UTF-8" ) );
             }
             inputData.setInputStream( is );
         }
         catch ( IOException e )
         {
             throw new TransferFailedException( "Broken JVM", e );
         }
     }
 
     public void writeTestProperties( File dir )
         throws TransferFailedException
     {
         Properties props = new Properties();
         if ( getRepository().getPermissions() != null )
         {
             String dirPerms = getRepository().getPermissions().getDirectoryMode();
 
             if ( dirPerms != null )
             {
                 props.setProperty( "directory.mode", dirPerms );
             }
 
             String filePerms = getRepository().getPermissions().getFileMode();
             if ( filePerms != null )
             {
                 props.setProperty( "file.mode", filePerms );
             }
         }
 
         try
         {
             try ( OutputStream os = new FileOutputStream( new File( dir, "wagon.properties" ) ) )
             {
                 props.store( os, "MAVEN-CORE-IT-WAGON" );
             }
         }
         catch ( IOException e )
         {
             throw new TransferFailedException( e.getMessage(), e );
         }
     }
 
     public void fillOutputData( OutputData outputData )
         throws TransferFailedException
     {
         outputData.setOutputStream( new ByteArrayOutputStream() );
     }
 
     public void openConnection()
         throws ConnectionException, AuthenticationException
     {
     }
 }