org.glassfish.jersey.client.innate.inject.NonInjectionRequestScope Maven / Gradle / Ivy
/*
* Copyright (c) 2023 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.client.innate.inject;
import org.glassfish.jersey.internal.util.ExtendedLogger;
import org.glassfish.jersey.internal.util.LazyUid;
import org.glassfish.jersey.process.internal.RequestScope;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Level;
import java.util.logging.Logger;
public class NonInjectionRequestScope extends RequestScope {
@Override
public org.glassfish.jersey.process.internal.RequestContext createContext() {
return new Instance();
}
/**
* Implementation of the request scope instance.
*/
public static final class Instance implements org.glassfish.jersey.process.internal.RequestContext {
private static final ExtendedLogger logger = new ExtendedLogger(Logger.getLogger(Instance.class.getName()), Level.FINEST);
/*
* Scope instance UUID.
*
* For performance reasons, it's only generated if toString() method is invoked,
* e.g. as part of some low-level logging.
*/
private final LazyUid id = new LazyUid();
/**
* Holds the number of snapshots of this scope.
*/
private final AtomicInteger referenceCounter;
private Instance() {
this.referenceCounter = new AtomicInteger(1);
}
/**
* Get a "new" reference of the scope instance. This will increase
* the internal reference counter which prevents the scope instance
* to be destroyed until a {@link #release()} method is explicitly
* called (once per each {@code getReference()} method call).
*
* @return referenced scope instance.
*/
@Override
public NonInjectionRequestScope.Instance getReference() {
// TODO: replace counter with a phantom reference + reference queue-based solution
referenceCounter.incrementAndGet();
return this;
}
/**
* Release a single reference to the current request scope instance.
*
* Once all instance references are released, the instance will be recycled.
*/
@Override
public void release() {
referenceCounter.decrementAndGet();
}
@Override
public String toString() {
return "Instance{"
+ "id=" + id
+ ", referenceCounter=" + referenceCounter
+ '}';
}
}
}