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/*
 * 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.lang.reflect.Constructor;
import java.security.AccessController;
import java.security.PrivilegedAction;

/**
 * Creates an object from its constructor.
 * @author Kohsuke Kawaguchi
 */
@SuppressWarnings("unchecked")
public class ConstructorCreator extends AbstractCreatorImpl {

    public ConstructorCreator(Class type, Habitat habitat, MultiMap metadata) {
        super(type, habitat, metadata);
    }

    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) {
            try {
              Constructor ctor = type.getDeclaredConstructor(null);
              ctor.setAccessible(true);
              return ctor.newInstance(null);
            } catch (Exception e1) {
              // ignore
            }
            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);

        if (habitat.isContextualFactoriesPresent()) {
          Runnable runnable = new Runnable() {
            @Override
            public void run() {
              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);
              }
            }
          };
          
          Hk2ThreadContext.captureACCandRun(runnable);
          
        } else {

          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);
          }
          
        }
    }

}