package org.apache.maven.profiles.activation;

 /*

  * 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.model.Activation;

 import org.apache.maven.model.Profile;

 import org.codehaus.plexus.util.StringUtils;

 public class JdkPrefixProfileActivator

     extends DetectedProfileActivator

 {

     private static final String JDK_VERSION = System.getProperty( "java.version" );

     public boolean isActive( Profile profile )

     {

         Activation activation = profile.getActivation();

         String jdk = activation.getJdk();

         boolean reverse = false;

         if ( jdk.startsWith( "!" ) )

         {

             reverse = true;

             jdk = jdk.substring( 1 );

         }

         // null case is covered by canDetermineActivation(), so we can do a straight startsWith() here.

         boolean result = JDK_VERSION.startsWith( jdk );

         if ( reverse )

         {

             return !result;

         }

         else

         {

             return result;

         }

     }

     protected boolean canDetectActivation( Profile profile )

     {

         return profile.getActivation() != null && StringUtils.isNotEmpty( profile.getActivation().getJdk() );

     }

 }