package org.apache.maven.plugins.enforcer;
   
   /*
    * 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.commons.lang.SystemUtils;
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.execution.RuntimeInformation;
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.path.PathTranslator;
  import org.codehaus.plexus.PlexusConstants;
  import org.codehaus.plexus.PlexusContainer;
  import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
  import org.codehaus.plexus.context.Context;
  import org.codehaus.plexus.context.ContextException;
  import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
  
  /**
   * This goal displays the current platform information.
   *
   * @goal display-info
   * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
   * @version $Id: DisplayInfoMojo.java 1127643 2011-05-25 19:24:38Z krosenvold $
   * @threadSafe
   */
  public class DisplayInfoMojo
      extends AbstractMojo
      implements Contextualizable
  {
  
      /**
       * Path Translator needed by the ExpressionEvaluator
       *
       * @component role="org.apache.maven.project.path.PathTranslator"
       */
      protected PathTranslator translator;
  
      /**
       * The MavenSession
       *
       * @parameter default-value="${session}"
       * @readonly
       */
      protected MavenSession session;
  
      /**
       * POM
       *
       * @parameter default-value="${project}"
       * @readonly
       * @required
       */
      protected MavenProject project;
  
      // set by the contextualize method. Only way to get the
      // plugin's container in 2.0.x
      protected PlexusContainer container;
  
      public void contextualize ( Context context )
          throws ContextException
      {
          container = (PlexusContainer) context.get( PlexusConstants.PLEXUS_KEY );
      }
  
      /**
       * Entry point to the mojo
       */
      public void execute ()
          throws MojoExecutionException
      {
          try
          {
              EnforcerExpressionEvaluator evaluator = new EnforcerExpressionEvaluator( session, translator, project );
              DefaultEnforcementRuleHelper helper = new DefaultEnforcementRuleHelper( session, evaluator, getLog(),
                                                                                      container );
              RuntimeInformation rti = (RuntimeInformation) helper.getComponent( RuntimeInformation.class );
              getLog().info( "Maven Version: " + rti.getApplicationVersion() );
              getLog().info( "JDK Version: " + SystemUtils.JAVA_VERSION + " normalized as: "
                                 + RequireJavaVersion.normalizeJDKVersion( SystemUtils.JAVA_VERSION_TRIMMED ) );
              RequireOS os = new RequireOS();
              os.displayOSInfo( getLog(), true );
 
         }
         catch ( ComponentLookupException e )
         {
             getLog().warn( "Unable to Lookup component: " + e.getLocalizedMessage() );
         }
 
     }
 
 }