package org.apache.maven.scm.provider.perforce.command.login;
   
   /*
    * 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.ByteArrayInputStream;
  import java.io.File;
  
  import org.apache.maven.scm.CommandParameters;
  import org.apache.maven.scm.ScmException;
  import org.apache.maven.scm.ScmFileSet;
  import org.apache.maven.scm.command.login.AbstractLoginCommand;
  import org.apache.maven.scm.command.login.LoginScmResult;
  import org.apache.maven.scm.provider.ScmProviderRepository;
  import org.apache.maven.scm.provider.perforce.PerforceScmProvider;
  import org.apache.maven.scm.provider.perforce.command.PerforceCommand;
  import org.apache.maven.scm.provider.perforce.repository.PerforceScmProviderRepository;
  import org.codehaus.plexus.util.StringUtils;
  import org.codehaus.plexus.util.cli.CommandLineException;
  import org.codehaus.plexus.util.cli.CommandLineUtils;
  import org.codehaus.plexus.util.cli.Commandline;
  
  /**
   * @author Mike Perham
   *
   */
  public class PerforceLoginCommand
      extends AbstractLoginCommand
      implements PerforceCommand
  {
      /** {@inheritDoc} */
      public LoginScmResult executeLoginCommand( ScmProviderRepository repo, ScmFileSet files, CommandParameters params )
          throws ScmException
      {
          Commandline cl = createCommandLine( (PerforceScmProviderRepository) repo, files.getBasedir() );
          PerforceLoginConsumer consumer = new PerforceLoginConsumer();
          boolean isSuccess = false;
  
          try
          {
              String password = repo.getPassword();
              if ( StringUtils.isEmpty( password ) )
              {
                  if ( getLogger().isInfoEnabled() )
                  {
                      getLogger().info( "No password found, proceeding without it." );
                  }
                  isSuccess = true;
              }
              else
              {
                  CommandLineUtils.StringStreamConsumer err = new CommandLineUtils.StringStreamConsumer();
                  int exitCode = CommandLineUtils.executeCommandLine( cl, new ByteArrayInputStream( password.getBytes() ),
                                                                      consumer, err );
                  isSuccess = consumer.isSuccess();
  
                  if ( !isSuccess )
                  {
                      String cmdLine = CommandLineUtils.toString( cl.getCommandline() );
  
                      StringBuilder msg = new StringBuilder( "Exit code: " + exitCode + " - " + err.getOutput() );
                      msg.append( '\n' );
                      msg.append( "Command line was:" + cmdLine );
  
                      throw new CommandLineException( msg.toString() );
                  }
              }
          }
          catch ( CommandLineException e )
          {
              throw new ScmException( e.getMessage(), e );
          }
  
          return new LoginScmResult( cl.toString(), isSuccess ? "Login successful" : "Login failed",
                                     consumer.getOutput(), isSuccess );
      }
  
      public static Commandline createCommandLine( PerforceScmProviderRepository repo, File workingDir )
      {
          Commandline command = PerforceScmProvider.createP4Command( repo, workingDir );
  
          command.createArg().setValue( "login" );
          if ( !StringUtils.isEmpty( repo.getUser() ) )
         {
             command.createArg().setValue( repo.getUser() );
         }
         return command;
     }
 }