athenz.shade.zts.org.glassfish.jersey.inject.hk2.InstanceSupplierFactoryBridge Maven / Gradle / Ivy
/*
* 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 athenz.shade.zts.athenz.shade.zts.org.glassfish.jersey.inject.hk2;
import java.util.function.Supplier;
import athenz.shade.zts.athenz.shade.zts.org.glassfish.jersey.internal.inject.DisposableSupplier;
import athenz.shade.zts.athenz.shade.zts.org.glassfish.hk2.api.Factory;
import athenz.shade.zts.athenz.shade.zts.org.glassfish.hk2.api.ServiceLocator;
/**
* This class is used as a bridge between {@link Factory HK2 Factory} and JDK {@link Supplier}. Using this class {@link Supplier}
* is able to behave as a factory in service locator. The bridge just delegates all invocations to provided {@link ServiceLocator}
* and therefore all operation should be in proper scope and context.
*
* This bridge is dedicated to instance binding therefore underlying {@code supplier} is always only single instance.
*
* @param type which could be handled by {@code Supplier} and this bridge.
*/
public class InstanceSupplierFactoryBridge implements Factory {
private Supplier supplier;
private boolean disposable;
/**
* Constructor for a new bridge.
*
* @param supplier type which will be looked for in locator.
* @param disposable flag whether the bridge is set up for disposing the created object.
*/
InstanceSupplierFactoryBridge(Supplier supplier, boolean disposable) {
this.supplier = supplier;
this.disposable = disposable;
}
@Override
public T provide() {
return supplier.get();
}
@Override
public void dispose(T instance) {
if (disposable) {
((DisposableSupplier) supplier).dispose(instance);
}
}
}