package org.andromda.maven.plugin.andromdapp;
   
   import java.io.File;
   
   import org.apache.maven.plugin.AbstractMojo;
   import org.apache.maven.plugin.MojoExecutionException;
   import org.apache.maven.project.MavenProject;
   import org.apache.commons.lang.StringUtils;
   
  
  /**
   * An abstract Mojo for app server management.
   *
   * @author Chad Brandon
   */
  public abstract class AppManagementMojo
      extends AbstractMojo
  {
      /**
       * The location (i.e. path) to deploy.
       *
       * @parameter
       * @required
       */
      protected File deployLocation;
  
      /**
       * @parameter expression="${project}"
       * @required
       * @readonly
       */
      protected MavenProject project;
  
      /**
       * Attempts to retrieve the packaging of the current project, and if it can't
       * find it, throws an exception.
       *
       * @return the packaging.
       * @throws MojoExecutionException if no packaging was found.
       */
      protected String getPackaging() throws MojoExecutionException
      {
          final String packaging = this.project.getPackaging();
          if (StringUtils.isBlank(packaging))
          {
              throw new MojoExecutionException(
                  "This project must have the packaging defined, when attempting to deploy exploded");
          }
          return packaging;
      }
  
      /**
       * Retrieves the file that will be or is deployed.
       *
       * @return the deploy file.
       * @throws MojoExecutionException
       */
      protected File getDeployFile() throws MojoExecutionException
      {
          return new File(this.deployLocation, this.project.getBuild().getFinalName() + '.' + this.getPackaging());
      }
  }