001package org.apache.maven.plugins.enforcer;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022import org.apache.maven.execution.MavenSession;
023import org.apache.maven.plugin.AbstractMojo;
024import org.apache.maven.plugin.MojoExecution;
025import org.apache.maven.plugin.MojoExecutionException;
026import org.apache.maven.plugins.annotations.Mojo;
027import org.apache.maven.plugins.annotations.Parameter;
028import org.apache.maven.project.MavenProject;
029import org.codehaus.plexus.PlexusConstants;
030import org.codehaus.plexus.PlexusContainer;
031import org.codehaus.plexus.context.Context;
032import org.codehaus.plexus.context.ContextException;
033import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
034
035/**
036 * This goal displays the current platform information.
037 *
038 * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
039 */
040@Mojo( name = "display-info", threadSafe = true )
041public class DisplayInfoMojo
042    extends AbstractMojo
043    implements Contextualizable
044{
045
046    /**
047     * MojoExecution needed by the ExpressionEvaluator
048     */
049    @Parameter( defaultValue = "${mojoExecution}", readonly = true, required = true )
050    protected MojoExecution mojoExecution;
051
052    /**
053     * The MavenSession
054     */
055    @Parameter( defaultValue = "${session}", readonly = true, required = true )
056    protected MavenSession session;
057
058    /**
059     * POM
060     */
061    @Parameter( defaultValue = "${project}", readonly = true, required = true )
062    protected MavenProject project;
063
064    // set by the contextualize method. Only way to get the
065    // plugin's container in 2.0.x
066    protected PlexusContainer container;
067
068    public void contextualize( Context context )
069        throws ContextException
070    {
071        container = (PlexusContainer) context.get( PlexusConstants.PLEXUS_KEY );
072    }
073
074    /**
075     * Entry point to the mojo
076     */
077    public void execute()
078        throws MojoExecutionException
079    {
080        String mavenVersion = session.getSystemProperties().getProperty( "maven.version" );
081        String javaVersion = System.getProperty( "java.version" );
082        String javaVendor = System.getProperty( "java.vendor" );
083        getLog().info( "Maven Version: " + mavenVersion );
084        getLog().info( "JDK Version: " + javaVersion + " normalized as: "
085            + RequireJavaVersion.normalizeJDKVersion( javaVersion ) );
086        getLog().info( "Java Vendor: " + javaVendor );
087        RequireOS os = new RequireOS();
088        os.displayOSInfo( getLog(), true );
089    }
090
091}