org.commonjava.propulsor.deploy.resteasy.ResteasyDeploymentProvider.java Source code

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Here is the source code for org.commonjava.propulsor.deploy.resteasy.ResteasyDeploymentProvider.java

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/**
 * Copyright (C) 2015 John Casey (jdcasey@commonjava.org)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.commonjava.propulsor.deploy.resteasy;

import com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider;
import io.undertow.servlet.Servlets;
import io.undertow.servlet.api.DeploymentInfo;
import io.undertow.servlet.api.ServletInfo;

import java.util.HashSet;
import java.util.Set;

import javax.annotation.PostConstruct;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Instance;
import javax.enterprise.inject.spi.BeanManager;
import javax.inject.Inject;
import javax.ws.rs.core.Application;

import org.apache.commons.lang.StringUtils;
import org.commonjava.propulsor.deploy.resteasy.helper.CdiInjectorFactoryImpl;
import org.commonjava.propulsor.deploy.resteasy.helper.RequestScopeListener;
import org.commonjava.propulsor.deploy.resteasy.jackson.CDIJacksonProvider;
import org.commonjava.propulsor.deploy.undertow.UndertowDeploymentProvider;
import org.jboss.resteasy.plugins.server.servlet.HttpServlet30Dispatcher;
import org.jboss.resteasy.spi.ResteasyDeployment;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

// TODO: Is it really right to make this extend Application?? Not sure...
@ApplicationScoped
public class ResteasyDeploymentProvider extends Application implements UndertowDeploymentProvider {

    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Inject
    private Instance<RestResources> resources;

    @Inject
    private Instance<RestProvider> providers;

    @Inject
    private ResteasyAppConfig config;

    @Inject
    private BeanManager bmgr;

    // just make sure it loads, dammit
    //    @Inject
    //    private CDIJacksonProvider jacksonProvider;

    private Set<Class<?>> resourceClasses;

    private Set<Class<?>> providerClasses;

    protected ResteasyDeploymentProvider() {
    }

    public ResteasyDeploymentProvider(final Set<Class<?>> resourceClasses, final Set<Class<?>> providerClasses,
            final ResteasyAppConfig config) {
        this.resourceClasses = resourceClasses;
        this.providerClasses = providerClasses;
        this.config = config;
    }

    @PostConstruct
    public void cdiInit() {
        this.resourceClasses = new HashSet<>();
        for (final RestResources restResources : resources) {
            this.resourceClasses.add(restResources.getClass());
        }

        this.providerClasses = new HashSet<>();
        for (final RestProvider restProvider : providers) {
            this.providerClasses.add(restProvider.getClass());
        }
    }

    @Override
    public DeploymentInfo getDeploymentInfo() {
        final ResteasyDeployment deployment = new ResteasyDeployment();

        //        deployment.getActualResourceClasses()
        //                  .addAll( resourceClasses );
        //
        //        deployment.getActualProviderClasses()
        //                  .addAll( providerClasses );

        LoggerFactory.getLogger(getClass()).debug(
                "\n\n\n\nRESTEasy DeploymentManager Using BeanManager: {} (@{})\n  with ObjectMapper: {}\n\n\n",
                bmgr, bmgr.hashCode());

        deployment.setApplication(this);
        deployment.setInjectorFactoryClass(CdiInjectorFactoryImpl.class.getName());

        final ServletInfo resteasyServlet = Servlets.servlet("REST", HttpServlet30Dispatcher.class)
                .setAsyncSupported(true).setLoadOnStartup(1).addMappings(config.getJaxRsMappings());

        return new DeploymentInfo().addListener(Servlets.listener(RequestScopeListener.class))
                .addServletContextAttribute(ResteasyDeployment.class.getName(), deployment)
                .addServlet(resteasyServlet).setClassLoader(ClassLoader.getSystemClassLoader());
    }

    @Override
    public Set<Class<?>> getClasses() {
        final Set<Class<?>> allClasses = new HashSet<>();
        allClasses.addAll(resourceClasses);

        // TODO: This might not be right...
        allClasses.addAll(providerClasses);
        allClasses.add(CDIJacksonProvider.class);
        //        allClasses.add( JacksonJsonProvider.class );

        logger.debug("Returning getClass() with: \n  {}", StringUtils.join(allClasses, "\n  "));
        return allClasses;
    }

}