/*
* Copyright 2016 Hammock and its contributors
*
* 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 ws.ament.hammock.rest.jersey;
import java.util.Map;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Instance;
import javax.enterprise.inject.Produces;
import javax.inject.Inject;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.servlet.ServletContainer;
import ws.ament.hammock.utils.ClassUtils;
import ws.ament.hammock.web.spi.RestServerConfiguration;
import ws.ament.hammock.web.spi.ServletContextAttributeProvider;
import ws.ament.hammock.web.api.ServletDescriptor;
import static java.util.Collections.singletonMap;
@ApplicationScoped
public class JerseyContainerConfigurator implements ServletContextAttributeProvider {
/**
* Jersey internal contract to look for {@link ResourceConfig} instance within servlet attributes
* named '{@value #RESOURCE_CONFIG}$ServletName$'.
*/
private static final String RESOURCE_CONFIG = "jersey.config.servlet.internal.resourceConfig_";
private static final String SERVLET_NAME = "JerseyServlet";
@Inject
private JerseyCdiExtension jerseyCdiExtension;
@Inject
private Instance<Application> applicationInstance;
@Inject
private RestServerConfiguration restServerConfiguration;
@Produces
public ServletDescriptor jerseyServlet() {
String urlPattern = restServerConfiguration.getRestServletMapping();
if (!applicationInstance.isUnsatisfied() && !applicationInstance.isAmbiguous()) {
ApplicationPath annotation = ClassUtils.getAnnotation(applicationInstance.get().getClass(), ApplicationPath.class);
if(annotation != null) {
String path = annotation.value();
urlPattern = path.endsWith("/") ? path + "*" : path + "/*";
}
}
return new ServletDescriptor(SERVLET_NAME, null, new String[] { urlPattern }, 1, null, true, ServletContainer.class);
}
@Override
public Map<String, Object> getAttributes() {
final ResourceConfig resourceConfig;
if (!applicationInstance.isUnsatisfied() && !applicationInstance.isAmbiguous()) {
resourceConfig = ResourceConfig.forApplication(applicationInstance.get());
} else {
resourceConfig = new ResourceConfig();
}
if (resourceConfig.getClasses().isEmpty()) {
resourceConfig
.registerClasses(jerseyCdiExtension.getProviders())
.registerClasses(jerseyCdiExtension.getResources());
}
final String attributeName = RESOURCE_CONFIG + SERVLET_NAME;
return singletonMap(attributeName, resourceConfig);
}
}