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.artifact.versioning.DefaultArtifactVersion;

 import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;

 import org.apache.maven.artifact.versioning.VersionRange;

 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 )

         throws ProfileActivationException

     {

         Activation activation = profile.getActivation();

         String jdk = activation.getJdk();

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

         if ( jdk.startsWith( "[" ) || jdk.startsWith( "(" ) )

         {

             try

             {

                 if ( matchJdkVersionRange( jdk ) )

                 {

                     return true;

                 }

                 else

                 {

                     return false;

                 }

             }

             catch ( InvalidVersionSpecificationException e )

             {

                 throw new ProfileActivationException( "Invalid JDK version in profile '" + profile.getId() + "': "

                     + e.getMessage() );

             }

         }

         boolean reverse = false;

         if ( jdk.startsWith( "!" ) )

         {

             reverse = true;

             jdk = jdk.substring( 1 );

         }

         if ( getJdkVersion().startsWith( jdk ) )

         {

             return !reverse;

         }

         else

         {

             return reverse;

         }

     }

     private boolean matchJdkVersionRange( String jdk )

         throws InvalidVersionSpecificationException

     {

         VersionRange jdkVersionRange = VersionRange.createFromVersionSpec( convertJdkToMavenVersion( jdk ) );

         DefaultArtifactVersion jdkVersion = new DefaultArtifactVersion( convertJdkToMavenVersion( getJdkVersion() ) );

         return jdkVersionRange.containsVersion( jdkVersion );

     }

     private String convertJdkToMavenVersion( String jdk )

     {

         return jdk.replaceAll( "_", "-" );

     }

     protected String getJdkVersion()

     {

         return JDK_VERSION;

     }

     protected boolean canDetectActivation( Profile profile )

     {

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

     }

 }