com.sun.hk2.component.ConstructorCreator Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.hk2.component;
import org.jvnet.hk2.component.ComponentException;
import org.jvnet.hk2.component.Habitat;
import org.jvnet.hk2.component.Inhabitant;
import org.jvnet.hk2.component.MultiMap;
import java.security.AccessController;
import java.security.PrivilegedAction;
/**
* Creates an object from its constructor.
* @author Kohsuke Kawaguchi
*/
@SuppressWarnings("unchecked")
public class ConstructorCreator extends AbstractCreatorImpl {
// private final ScopeInstance singletonScope;
public ConstructorCreator(Class type, Habitat habitat, MultiMap metadata) {
super(type, habitat, metadata);
// singletonScope = habitat.singletonScope;
}
public T create(Inhabitant onBehalfOf) throws ComponentException {
try {
return type.newInstance();
} catch (InstantiationException e) {
throw new ComponentException("Failed to create "+type,e);
} catch (IllegalAccessException e) {
throw new ComponentException("Failed to create "+type,e);
} catch (LinkageError e) {
throw new ComponentException("Failed to create "+type,e);
} catch (RuntimeException e) {
throw new ComponentException("Failed to create "+type,e);
}
}
public void initialize(final T t, final Inhabitant onBehalfOf) throws ComponentException {
super.initialize(t, onBehalfOf);
// Scoped scoped = t.getClass().getAnnotation(Scoped.class);
// ScopeInstance si = (scoped == null ? singletonScope : getScope(scoped));
if (System.getSecurityManager() != null) {
AccessController.doPrivileged(new PrivilegedAction() {
// privileged required for running with SecurityManager ON
public java.lang.Object run() {
inject(habitat, t, onBehalfOf);
return null;
}
});
} else {
inject(habitat, t, onBehalfOf);
}
}
// /**
// * Determines the {@link ScopeInstance} that stores the component.
// *
// * @return
// * null for prototype scope. (Note that in {@link Scope#current()}
// * null return value is an error.)
// */
// private ScopeInstance getScope(Scoped svc) throws ComponentException {
// Class s = svc.value();
// // for performance reason and to avoid infinite recursion,
// // recognize these two fundamental built-in scopes and process them differently.
// if(s==Singleton.class)
// return singletonScope;
// if(s==PerLookup.class)
// return null;
//
// // for all the other scopes, including user-defined ones.
// Scope scope = habitat.getByType(s);
// ScopeInstance si = scope.current();
// if(si==null) // scope is an extension point, so beware for broken implementations
// throw new ComponentException(scope+" returned null from the current() method");
// return si;
// }
}