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• Routing.java

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org.glassfish.jersey.server.internal.routing.Routing Maven / Gradle / Ivy

/*
 * Copyright (c) 2015, 2020 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.server.internal.routing;

import java.util.Collection;
import java.util.function.Function;

import jakarta.ws.rs.core.Configuration;

import org.glassfish.jersey.message.MessageBodyWorkers;
import org.glassfish.jersey.process.internal.ChainableStage;
import org.glassfish.jersey.process.internal.Stage;
import org.glassfish.jersey.server.internal.JerseyResourceContext;
import org.glassfish.jersey.server.internal.ProcessingProviders;
import org.glassfish.jersey.server.internal.process.RequestProcessingContext;
import org.glassfish.jersey.server.model.ModelProcessor;
import org.glassfish.jersey.server.model.ResourceMethodInvoker;
import org.glassfish.jersey.server.model.RuntimeResourceModel;
import org.glassfish.jersey.server.spi.internal.ValueParamProvider;

/**
 * Jersey routing entry point.
 *
 * @author Marek Potociar
 */
public final class Routing {
    private Routing() {
        throw new AssertionError("No instances allowed.");
    }

    /**
     * Create a new request pre-processing stage that extracts a matched endpoint from a routing context,
     * where it was previously stored by the request routing stage and
     * (if available) returns the endpoint wrapped in a next terminal stage.
     *
     * This request pre-processing stage should be a final stage in the request processing chain.
     *
     * @return new matched endpoint extractor request pre-processing stage.
     */
    public static Stage matchedEndpointExtractor() {
        return new MatchedEndpointExtractorStage();
    }

    /**
     * Create a routing stage builder for a given runtime resource model.
     *
     * @param resourceModel runtime resource model
     * @return new routing stage builder.
     */
    public static Builder forModel(RuntimeResourceModel resourceModel) {
        return new Builder(resourceModel);

    }

    /**
     * Resource routing builder.
     */
    public static final class Builder {

        private final RuntimeResourceModel resourceModel;

        private JerseyResourceContext resourceContext;
        private Configuration config;
        private MessageBodyWorkers entityProviders;
        private Collection valueSuppliers;
        private Iterable modelProcessors;
        private Function, ?> createServiceFunction;
        private ProcessingProviders processingProviders;
        private ResourceMethodInvoker.Builder resourceMethodInvokerBuilder;

        private Builder(RuntimeResourceModel resourceModel) {
            if (resourceModel == null) {
                // No L10N - internally used class
                throw new NullPointerException("Resource model must not be null.");
            }
            this.resourceModel = resourceModel;
        }

        /**
         * Set resource context.
         *
         * @param resourceContext resource context.
         * @return updated routing builder.
         */
        public Builder resourceContext(JerseyResourceContext resourceContext) {
            this.resourceContext = resourceContext;
            return this;
        }

        /**
         * Set runtime configuration.
         *
         * @param config runtime configuration.
         * @return updated routing builder.
         */
        public Builder configuration(Configuration config) {
            this.config = config;
            return this;
        }

        /**
         * Set entity providers.
         *
         * @param workers entity providers.
         * @return updated routing builder.
         */
        public Builder entityProviders(MessageBodyWorkers workers) {
            this.entityProviders = workers;
            return this;
        }

        /**
         * Set value suppliers.
         *
         * @param valueSuppliers all registered value suppliers.
         * @return updated routing builder.
         */
        public Builder valueSupplierProviders(Collection valueSuppliers) {
            this.valueSuppliers = valueSuppliers;
            return this;
        }

        /**
         * Set request/response processing providers.
         *
         * @param processingProviders request/response processing providers.
         * @return updated routing builder.
         */
        public Builder processingProviders(ProcessingProviders processingProviders) {
            this.processingProviders = processingProviders;
            return this;
        }

        /**
         * Set model processors.
         *
         * @param modelProcessors all registered model processors.
         * @return updated routing builder.
         */
        public Builder modelProcessors(Iterable modelProcessors) {
            this.modelProcessors = modelProcessors;
            return this;
        }

        /**
         * Set model processors.
         *
         * @param createServiceFunction all registered model processors.
         * @return updated routing builder.
         */
        public Builder createService(Function, ?> createServiceFunction) {
            this.createServiceFunction = createServiceFunction;
            return this;
        }

        /**
         * Set builder of ResourceMethodInvoker.
         *
         * @param resourceMethodInvokerBuilder resource method invoker builder.
         * @return updated routing builder.
         */
        public Builder resourceMethodInvokerBuilder(ResourceMethodInvoker.Builder resourceMethodInvokerBuilder) {
            this.resourceMethodInvokerBuilder = resourceMethodInvokerBuilder;
            return this;
        }

        /**
         * Build routing stage.
         *
         * @return routing stage for the runtime resource model.
         */
        public ChainableStage buildStage() {
            // No L10N - internally used class
            if (resourceContext == null) {
                throw new NullPointerException("Resource context is not set.");
            }
            if (config == null) {
                throw new NullPointerException("Runtime configuration is not set.");
            }
            if (entityProviders == null) {
                throw new NullPointerException("Entity providers are not set.");
            }
            if (valueSuppliers == null) {
                throw new NullPointerException("Value supplier providers are not set.");
            }
            if (modelProcessors == null) {
                throw new NullPointerException("Model processors are not set.");
            }
            if (createServiceFunction == null) {
                throw new NullPointerException("Create function is not set.");
            }
            if (processingProviders == null) {
                throw new NullPointerException("Processing providers are not set.");
            }
            if (resourceMethodInvokerBuilder == null) {
                throw new NullPointerException("ResourceMethodInvokerBuilder is not set.");
            }

            final RuntimeModelBuilder runtimeModelBuilder = new RuntimeModelBuilder(
                    resourceContext,
                    config,
                    entityProviders,
                    valueSuppliers,
                    processingProviders,
                    resourceMethodInvokerBuilder,
                    modelProcessors,
                    createServiceFunction);

            return new RoutingStage(runtimeModelBuilder.buildModel(resourceModel, false));
        }
    }
}