/*
* 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.process.internal;
import java.util.List;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.glassfish.jersey.internal.BootstrapConfigurator;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.model.internal.ComponentBag;
import org.glassfish.jersey.spi.ExecutorServiceProvider;
import org.glassfish.jersey.spi.ScheduledExecutorServiceProvider;
Abstract Configurator which initializes and register ExecutorServiceProvider
and ScheduledExecutorServiceProvider
. Author: Petr Bouda
/**
* Abstract Configurator which initializes and register {@link ExecutorServiceProvider} and
* {@link ScheduledExecutorServiceProvider}.
*
* @author Petr Bouda
*/
public abstract class AbstractExecutorProvidersConfigurator implements BootstrapConfigurator {
private static final Function<Object, ExecutorServiceProvider> CAST_TO_EXECUTOR_PROVIDER =
ExecutorServiceProvider.class::cast;
private static final Function<Object, ScheduledExecutorServiceProvider> CAST_TO_SCHEDULED_EXECUTOR_PROVIDER =
ScheduledExecutorServiceProvider.class::cast;
Retrieves registered ExecutorServiceProvider
and ScheduledExecutorServiceProvider
by an application and adds the default implementations of those interfaces to binds them into InjectionManager
. Params: - injectionManager – injection manager used for binding selected executor service providers.
- componentBag – provides executor service providers registered by an application.
- defaultAsyncExecutorProvider – default implementation of
ExecutorServiceProvider
. - defaultScheduledExecutorProvider – default implementation of
ScheduledExecutorServiceProvider
.
/**
* Retrieves registered {@link ExecutorServiceProvider} and {@link ScheduledExecutorServiceProvider} by an application and
* adds the default implementations of those interfaces to binds them into {@link InjectionManager}.
*
* @param injectionManager injection manager used for binding selected executor service providers.
* @param componentBag provides executor service providers registered by an application.
* @param defaultAsyncExecutorProvider default implementation of {@link ExecutorServiceProvider}.
* @param defaultScheduledExecutorProvider default implementation of {@link ScheduledExecutorServiceProvider}.
*/
protected void registerExecutors(
InjectionManager injectionManager,
ComponentBag componentBag,
ExecutorServiceProvider defaultAsyncExecutorProvider,
ScheduledExecutorServiceProvider defaultScheduledExecutorProvider) {
List<ExecutorServiceProvider> customExecutors =
Stream.concat(
componentBag.getClasses(ComponentBag.EXECUTOR_SERVICE_PROVIDER_ONLY).stream()
.map(injectionManager::createAndInitialize),
componentBag.getInstances(ComponentBag.EXECUTOR_SERVICE_PROVIDER_ONLY).stream())
.map(CAST_TO_EXECUTOR_PROVIDER)
.collect(Collectors.toList());
customExecutors.add(defaultAsyncExecutorProvider);
List<ScheduledExecutorServiceProvider> customScheduledExecutors =
Stream.concat(
componentBag.getClasses(ComponentBag.SCHEDULED_EXECUTOR_SERVICE_PROVIDER_ONLY).stream()
.map(injectionManager::createAndInitialize),
componentBag.getInstances(ComponentBag.SCHEDULED_EXECUTOR_SERVICE_PROVIDER_ONLY).stream())
.map(CAST_TO_SCHEDULED_EXECUTOR_PROVIDER)
.collect(Collectors.toList());
customScheduledExecutors.add(defaultScheduledExecutorProvider);
ExecutorProviders.registerExecutorBindings(injectionManager, customExecutors, customScheduledExecutors);
}
}