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/*
* Copyright (c) 2017, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package org.glassfish.jersey.inject.hk2;
import java.lang.annotation.Annotation;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.glassfish.jersey.internal.inject.ForeignDescriptor;
import org.glassfish.jersey.process.internal.RequestScope;
import org.glassfish.jersey.process.internal.RequestScoped;
import org.glassfish.hk2.api.ActiveDescriptor;
import org.glassfish.hk2.api.Context;
import org.glassfish.hk2.api.ServiceHandle;
import org.glassfish.hk2.api.TypeLiteral;
import org.glassfish.hk2.utilities.binding.AbstractBinder;
/**
* Class is able to communicate with {@link RequestScope} and provide request-scoped descriptors to HK2 DI provider to create or
* destroy instances.
*/
@Singleton
public class RequestContext implements Context {
private final RequestScope requestScope;
@Inject
public RequestContext(RequestScope requestScope) {
this.requestScope = requestScope;
}
@Override
public Class getScope() {
return RequestScoped.class;
}
@Override
public U findOrCreate(ActiveDescriptor activeDescriptor, ServiceHandle root) {
Hk2RequestScope.Instance instance = (Hk2RequestScope.Instance) requestScope.current();
U retVal = instance.get(ForeignDescriptor.wrap(activeDescriptor));
if (retVal == null) {
retVal = activeDescriptor.create(root);
instance.put(ForeignDescriptor.wrap(activeDescriptor, obj -> activeDescriptor.dispose((U) obj)), retVal);
}
return retVal;
}
@Override
public boolean containsKey(ActiveDescriptor descriptor) {
Hk2RequestScope.Instance instance = (Hk2RequestScope.Instance) requestScope.current();
return instance.contains(ForeignDescriptor.wrap(descriptor));
}
@Override
public boolean supportsNullCreation() {
return true;
}
@Override
public boolean isActive() {
return requestScope.isActive();
}
@Override
public void destroyOne(ActiveDescriptor descriptor) {
Hk2RequestScope.Instance instance = (Hk2RequestScope.Instance) requestScope.current();
instance.remove(ForeignDescriptor.wrap(descriptor));
}
@Override
public void shutdown() {
requestScope.shutdown();
}
/**
* Request scope injection binder.
*/
public static class Binder extends AbstractBinder {
@Override
protected void configure() {
bindAsContract(RequestContext.class)
.to(new TypeLiteral>() {}.getType())
.in(Singleton.class);
}
}
}