package org.apache.archiva.common.plexusbridge;
/*
* 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.codehaus.plexus.DefaultContainerConfiguration;
import org.codehaus.plexus.DefaultPlexusContainer;
import org.codehaus.plexus.PlexusConstants;
import org.codehaus.plexus.PlexusContainerException;
import org.codehaus.plexus.classworlds.ClassWorld;
import org.codehaus.plexus.classworlds.realm.ClassRealm;
import org.codehaus.plexus.component.repository.exception.ComponentLookupException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import javax.annotation.PostConstruct;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.List;
import java.util.Map;
/**
* Simple component which will initiate the plexus shim component
* to see plexus components inside a guice container.<br>
* So move all of this here to be able to change quickly if needed.
*
* @author Olivier Lamy
*/
@Service( "plexusSisuBridge" )
public class PlexusSisuBridge
{
private Logger log = LoggerFactory.getLogger( getClass() );
private boolean containerAutoWiring = true;
private String containerClassPathScanning = PlexusConstants.SCANNING_INDEX;// PlexusConstants.SCANNING_ON;
private String containerComponentVisibility = PlexusConstants.REALM_VISIBILITY;
private URL overridingComponentsXml;
private ClassRealm containerRealm;
private DefaultPlexusContainer plexusContainer;
@PostConstruct
public void initialize()
throws PlexusSisuBridgeException
{
DefaultContainerConfiguration conf = new DefaultContainerConfiguration();
conf.setAutoWiring( containerAutoWiring );
conf.setClassPathScanning( containerClassPathScanning );
conf.setComponentVisibility( containerComponentVisibility );
conf.setContainerConfigurationURL( overridingComponentsXml );
ClassWorld classWorld = new ClassWorld();
ClassLoader tccl = Thread.currentThread().getContextClassLoader();
containerRealm = new ClassRealm( classWorld, "maven", tccl );
// olamy hackhish but plexus-sisu need a URLClassLoader with URL filled
if ( tccl instanceof URLClassLoader )
{
URL[] urls = ( (URLClassLoader) tccl ).getURLs();
for ( URL url : urls )
{
containerRealm.addURL( url );
}
}
conf.setRealm( containerRealm );
//conf.setClassWorld( classWorld );
ClassLoader ori = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader( containerRealm );
plexusContainer = new DefaultPlexusContainer( conf );
}
catch ( PlexusContainerException e )
{
throw new PlexusSisuBridgeException( e.getMessage(), e );
}
finally
{
Thread.currentThread().setContextClassLoader( ori );
}
}
private URL[] getClassLoaderURLs( ClassLoader classLoader )
{
try
{
// can be WebappClassLoader when using tomcat maven plugin
//java.net.URL[] getURLs
Method method = classLoader.getClass().getMethod( "getURLs", new Class[]{ } );
if ( method != null )
{
return (URL[]) method.invoke( classLoader );
}
}
catch ( Exception e )
{
log.info( "ignore issue trying to find url[] from classloader {}", e.getMessage() );
}
return new URL[]{ };
}
public <T> T lookup( Class<T> clazz )
throws PlexusSisuBridgeException
{
ClassLoader ori = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader( containerRealm );
return plexusContainer.lookup( clazz );
}
catch ( ComponentLookupException e )
{
throw new PlexusSisuBridgeException( e.getMessage(), e );
}
finally
{
Thread.currentThread().setContextClassLoader( ori );
}
}
public <T> T lookup( Class<T> clazz, String hint )
throws PlexusSisuBridgeException
{
ClassLoader ori = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader( containerRealm );
return plexusContainer.lookup( clazz, hint );
}
catch ( ComponentLookupException e )
{
throw new PlexusSisuBridgeException( e.getMessage(), e );
}
finally
{
Thread.currentThread().setContextClassLoader( ori );
}
}
public <T> List<T> lookupList( Class<T> clazz )
throws PlexusSisuBridgeException
{
ClassLoader ori = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader( containerRealm );
return plexusContainer.lookupList( clazz );
}
catch ( ComponentLookupException e )
{
throw new PlexusSisuBridgeException( e.getMessage(), e );
}
finally
{
Thread.currentThread().setContextClassLoader( ori );
}
}
public <T> Map<String, T> lookupMap( Class<T> clazz )
throws PlexusSisuBridgeException
{
ClassLoader ori = Thread.currentThread().getContextClassLoader();
try
{
Thread.currentThread().setContextClassLoader( containerRealm );
return plexusContainer.lookupMap( clazz );
}
catch ( ComponentLookupException e )
{
throw new PlexusSisuBridgeException( e.getMessage(), e );
}
finally
{
Thread.currentThread().setContextClassLoader( ori );
}
}
}