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package org.apache.maven.model.profile.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 java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.apache.maven.model.Activation;
import org.apache.maven.model.Profile;
import org.apache.maven.model.building.ModelProblemCollector;
import org.apache.maven.model.building.ModelProblem.Severity;
import org.apache.maven.model.building.ModelProblem.Version;
import org.apache.maven.model.building.ModelProblemCollectorRequest;
import org.apache.maven.model.profile.ProfileActivationContext;
import org.codehaus.plexus.component.annotations.Component;
/**
* Determines profile activation based on the version of the current Java runtime.
*
* @author Benjamin Bentmann
* @see Activation#getJdk()
*/
@Component( role = ProfileActivator.class, hint = "jdk-version" )
public class JdkVersionProfileActivator
implements ProfileActivator
{
@Override
public boolean isActive( Profile profile, ProfileActivationContext context, ModelProblemCollector problems )
{
Activation activation = profile.getActivation();
if ( activation == null )
{
return false;
}
String jdk = activation.getJdk();
if ( jdk == null )
{
return false;
}
String version = context.getSystemProperties().get( "java.version" );
if ( version == null || version.length() <= 0 )
{
problems.add( new ModelProblemCollectorRequest( Severity.ERROR, Version.BASE )
.setMessage( "Failed to determine Java version for profile " + profile.getId() )
.setLocation( activation.getLocation( "jdk" ) ) );
return false;
}
if ( jdk.startsWith( "!" ) )
{
return !version.startsWith( jdk.substring( 1 ) );
}
else if ( isRange( jdk ) )
{
return isInRange( version, getRange( jdk ) );
}
else
{
return version.startsWith( jdk );
}
}
@Override
public boolean presentInConfig( Profile profile, ProfileActivationContext context, ModelProblemCollector problems )
{
Activation activation = profile.getActivation();
if ( activation == null )
{
return false;
}
String jdk = activation.getJdk();
if ( jdk == null )
{
return false;
}
return true;
}
private static boolean isInRange( String value, List<RangeValue> range )
{
int leftRelation = getRelationOrder( value, range.get( 0 ), true );
if ( leftRelation == 0 )
{
return true;
}
if ( leftRelation < 0 )
{
return false;
}
return getRelationOrder( value, range.get( 1 ), false ) <= 0;
}
private static int getRelationOrder( String value, RangeValue rangeValue, boolean isLeft )
{
if ( rangeValue.value.length() <= 0 )
{
return isLeft ? 1 : -1;
}
value = value.replaceAll( "[^0-9\\.\\-\\_]", "" );
List<String> valueTokens = new ArrayList<String>( Arrays.asList( value.split( "[\\.\\-\\_]" ) ) );
List<String> rangeValueTokens = new ArrayList<String>( Arrays.asList( rangeValue.value.split( "\\." ) ) );
addZeroTokens( valueTokens, 3 );
addZeroTokens( rangeValueTokens, 3 );
for ( int i = 0; i < 3; i++ )
{
int x = Integer.parseInt( valueTokens.get( i ) );
int y = Integer.parseInt( rangeValueTokens.get( i ) );
if ( x < y )
{
return -1;
}
else if ( x > y )
{
return 1;
}
}
if ( !rangeValue.closed )
{
return isLeft ? -1 : 1;
}
return 0;
}
private static void addZeroTokens( List<String> tokens, int max )
{
while ( tokens.size() < max )
{
tokens.add( "0" );
}
}
private static boolean isRange( String value )
{
return value.startsWith( "[" ) || value.startsWith( "(" );
}
private static List<RangeValue> getRange( String range )
{
List<RangeValue> ranges = new ArrayList<RangeValue>();
for ( String token : range.split( "," ) )
{
if ( token.startsWith( "[" ) )
{
ranges.add( new RangeValue( token.replace( "[", "" ), true ) );
}
else if ( token.startsWith( "(" ) )
{
ranges.add( new RangeValue( token.replace( "(", "" ), false ) );
}
else if ( token.endsWith( "]" ) )
{
ranges.add( new RangeValue( token.replace( "]", "" ), true ) );
}
else if ( token.endsWith( ")" ) )
{
ranges.add( new RangeValue( token.replace( ")", "" ), false ) );
}
else if ( token.length() <= 0 )
{
ranges.add( new RangeValue( "", false ) );
}
}
if ( ranges.size() < 2 )
{
ranges.add( new RangeValue( "99999999", false ) );
}
return ranges;
}
private static class RangeValue
{
private String value;
private boolean closed;
RangeValue( String value, boolean closed )
{
this.value = value.trim();
this.closed = closed;
}
@Override
public String toString()
{
return value;
}
}
}
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