org.jboss.as.server.deployment.reflect.DeploymentReflectionIndex Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.server.deployment.reflect;
import java.security.Permission;
import java.util.HashMap;
import java.util.Map;
import org.jboss.as.server.ServerMessages;
/**
* A reflection index for a deployment.
*
* @author David M. Lloyd
*/
public final class DeploymentReflectionIndex {
private final Map, ClassReflectionIndex> classes = new HashMap, ClassReflectionIndex>();
DeploymentReflectionIndex() {
}
private static final Permission DEPLOYMENT_REFLECTION_INDEX_PERMISSION = new RuntimePermission("createDeploymentReflectionIndex");
/**
* Construct a new instance.
*
* @return the new instance
*/
public static DeploymentReflectionIndex create() {
final SecurityManager sm = System.getSecurityManager();
if (sm != null) {
sm.checkPermission(DEPLOYMENT_REFLECTION_INDEX_PERMISSION);
}
return new DeploymentReflectionIndex();
}
/**
* Get the (possibly cached) index for a given class.
*
* @param clazz the class
* @return the index
*/
@SuppressWarnings({"unchecked"})
public synchronized ClassReflectionIndex getClassIndex(Class clazz) {
try {
ClassReflectionIndex index = (ClassReflectionIndex) classes.get(clazz);
if (index == null) {
classes.put(clazz, index = new ClassReflectionIndex(clazz, this));
}
return index;
} catch (Throwable e) {
throw ServerMessages.MESSAGES.errorGettingReflectiveInformation(clazz, clazz.getClassLoader(), e);
}
}
}