org.jboss.as.weld.WeldModuleResourceLoader Maven / Gradle / Ivy
/*
* Copyright The WildFly Authors
* SPDX-License-Identifier: Apache-2.0
*/
package org.jboss.as.weld;
import org.jboss.modules.Module;
import org.jboss.weld.resources.spi.ResourceLoader;
import org.jboss.weld.resources.spi.ResourceLoadingException;
import java.net.URL;
import java.util.Collection;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* A {@link ResourceLoader} that can load classes from a {@link Module}
*
* Thread Safety: This class is thread safe, and does not require a happens before even between construction and usage
*
* @author Stuart Douglas
*
*/
public class WeldModuleResourceLoader implements ResourceLoader {
private final Module module;
/**
* Additional classes that have been added to the bean archive by the container or by a portable extension
*/
private final Map> classes;
public WeldModuleResourceLoader(Module module) {
this.module = module;
this.classes = new ConcurrentHashMap>();
}
/**
* If the class name is found in additionalClasses then return it.
*
* Otherwise the class will be loaded from the module ClassLoader
*/
@Override
public Class classForName(String name) {
try {
if (classes.containsKey(name)) {
return classes.get(name);
}
final Class clazz = module.getClassLoader().loadClass(name);
classes.put(name, clazz);
return clazz;
} catch (ClassNotFoundException | LinkageError e) {
throw new ResourceLoadingException(e);
}
}
public void addAdditionalClass(Class clazz) {
this.classes.put(clazz.getName(), clazz);
}
/**
* Loads a resource from the module class loader
*/
@Override
public URL getResource(String name) {
try {
return module.getClassLoader().getResource(name);
} catch (Exception e) {
throw new ResourceLoadingException(e);
}
}
/**
* Loads resources from the module class loader
*/
@Override
public Collection getResources(String name) {
try {
final HashSet resources = new HashSet();
Enumeration urls = module.getClassLoader().getResources(name);
while (urls.hasMoreElements()) {
resources.add(urls.nextElement());
}
return resources;
} catch (Exception e) {
throw new ResourceLoadingException(e);
}
}
@Override
public void cleanup() {
// nop
}
}