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/*
* Copyright (c) 2017, 2021 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.internal;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.ws.rs.RuntimeType;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.internal.util.PropertiesHelper;
/**
* Simple ServiceFinder configuration.
*
* Looks for all implementations of a given contract using {@link ServiceFinder} and registers found instances to
* {@link InjectionManager}.
*
* @param contract type.
* @author Petr Bouda
*/
public abstract class AbstractServiceFinderConfigurator implements BootstrapConfigurator {
private final Class contract;
private final RuntimeType runtimeType;
/**
* Create a new configurator.
*
* @param contract contract of the service providers bound by this binder.
* @param runtimeType runtime (client or server) where the service finder binder is used.
*/
protected AbstractServiceFinderConfigurator(Class contract, RuntimeType runtimeType) {
this.contract = contract;
this.runtimeType = runtimeType;
}
/**
* Load all particular implementations of the type {@code T} using {@link ServiceFinder}.
*
* @param applicationProperties map containing application properties. May be {@code null}
* @return all registered classes of the type {@code T}.
*/
protected List> loadImplementations(Map applicationProperties) {
if (PropertiesHelper.isMetaInfServicesEnabled(applicationProperties, runtimeType)) {
return Stream.of(ServiceFinder.find(contract, true).toClassArray())
.collect(Collectors.toList());
}
return Collections.emptyList();
}
/**
* Mainly aimed to provide runtime type to abstract classes which extends this finder
*
* @return runtime type
*/
protected RuntimeType getRuntimeType() {
return runtimeType;
}
/**
* Mainly aimed to provide contract class to abstract classes which extends this finder
*
* @return contract class
*/
protected Class getContract() {
return contract;
}
}