org.glassfish.jersey.servlet.internal.ServletContainerProviderFactory Maven / Gradle / Ivy

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A bundle project producing JAX-RS RI bundles. The primary artifact is an "all-in-one" OSGi-fied JAX-RS RI bundle (jaxrs-ri.jar). Attached to that are two compressed JAX-RS RI archives. The first archive (jaxrs-ri.zip) consists of binary RI bits and contains the API jar (under "api" directory), RI libraries (under "lib" directory) as well as all external RI dependencies (under "ext" directory). The secondary archive (jaxrs-ri-src.zip) contains buildable JAX-RS RI source bundle and contains the API jar (under "api" directory), RI sources (under "src" directory) as well as all external RI dependencies (under "ext" directory). The second archive also contains "build.xml" ANT script that builds the RI sources. To build the JAX-RS RI simply unzip the archive, cd to the created jaxrs-ri directory and invoke "ant" from the command line.

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/*
 * Copyright (c) 2013, 2019 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.servlet.internal;

import org.glassfish.jersey.internal.ServiceFinder;
import org.glassfish.jersey.servlet.internal.spi.ServletContainerProvider;

/**
 * Factory class to get all "registered" implementations of {@link ServletContainerProvider}.
 * Mentioned implementation classes are registered by {@code META-INF/services}.
 *
 * @author Libor Kramolis
 * @since 2.1
 */
public final class ServletContainerProviderFactory {

    private ServletContainerProviderFactory() {
    }

    /**
     * Returns array of all "registered" implementations of {@link ServletContainerProvider}.
     *
     * @return Array of registered providers. Never returns {@code null}.
     *         If there is no implementation registered empty array is returned.
     */
    public static ServletContainerProvider[] getAllServletContainerProviders() {
        // TODO Instances of ServletContainerProvider could be cached, maybe. ???
        // TODO Check if META-INF/services lookup is enabled. ???
        return ServiceFinder.find(ServletContainerProvider.class).toArray();
    }

}