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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.web;
import static java.lang.Boolean.parseBoolean;
import static java.util.Comparator.comparingInt;
import com.google.common.collect.Sets;
import java.lang.reflect.AnnotatedElement;
import java.util.Collection;
import java.util.Comparator;
import java.util.Set;
import java.util.logging.Logger;
import javax.annotation.Priority;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.ContainerResponseFilter;
import com.sun.jersey.api.client.filter.LoggingFilter;
import org.glassfish.jersey.server.ResourceConfig;
import org.onap.aai.rest.BulkAddConsumer;
import org.onap.aai.rest.BulkProcessConsumer;
import org.onap.aai.rest.ExampleConsumer;
import org.onap.aai.rest.LegacyMoxyConsumer;
import org.onap.aai.rest.URLFromVertexIdConsumer;
import org.onap.aai.rest.VertexIdConsumer;
import org.onap.aai.rest.bulk.BulkSingleTransactionConsumer;
import org.onap.aai.rest.util.EchoResponse;
import org.onap.logging.filter.base.AuditLogContainerFilter;
import org.reflections.Reflections;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Profile;
import org.springframework.core.env.Environment;
@Configuration
public class JerseyConfiguration {
private static final Logger log = Logger.getLogger(JerseyConfiguration.class.getName());
private static final String LOGGING_ENABLED_PROPERTY = "aai.request.logging.enabled";
private static final String INTERCEPTOR_PACKAGE = "org.onap.aai.interceptors";
private static final String LOGGING_INTERCEPTOR_PACKAGE = "org.onap.aai.aailog.filter";
private static final boolean ENABLE_RESPONSE_LOGGING = false;
private final Reflections reflections = new Reflections(INTERCEPTOR_PACKAGE);
private final Reflections loggingReflections = new Reflections(LOGGING_INTERCEPTOR_PACKAGE);
private final Environment environment;
@Autowired
public JerseyConfiguration(Environment environment) {
this.environment = environment;
}
@Bean
public ResourceConfig resourceConfig() {
ResourceConfig resourceConfig = new ResourceConfig();
Set<Class<?>> classes = Sets.newHashSet(
EchoResponse.class,
VertexIdConsumer.class,
ExampleConsumer.class,
BulkAddConsumer.class,
BulkProcessConsumer.class,
BulkSingleTransactionConsumer.class,
LegacyMoxyConsumer.class,
URLFromVertexIdConsumer.class
);
resourceConfig.registerClasses(classes);
registerFiltersForClasses(resourceConfig, ContainerRequestFilter.class, ContainerResponseFilter.class, AuditLogContainerFilter.class);
if (isLoggingEnabled()) {
logRequests(resourceConfig);
}
return resourceConfig;
}
private void registerFiltersForClasses(ResourceConfig resourceConfig, Class<?>... classes) {
for (Class<?> clazz : classes) {
registerFiltersFor(clazz, resourceConfig);
}
}
private <T> void registerFiltersFor(Class<T> clazz, ResourceConfig resourceConfig) {
Set<Class<? extends T>> filters = loggingReflections.getSubTypesOf(clazz);
filters.addAll(reflections.getSubTypesOf(clazz));
throwIfPriorityAnnotationAbsent(filters);
filters.stream()
.filter(this::isEnabledByActiveProfiles)
.sorted(priorityComparator())
.forEach(resourceConfig::register);
}
private <T> void throwIfPriorityAnnotationAbsent(Collection<Class<? extends T>> classes) {
for (Class clazz : classes) {
if (!clazz.isAnnotationPresent(Priority.class)) {
throw new MissingFilterPriorityException(clazz);
}
}
}
private <T> Comparator<Class<? extends T>> priorityComparator() {
return comparingInt(clazz -> clazz.getAnnotation(Priority.class).value());
}
private void logRequests(ResourceConfig resourceConfig) {
resourceConfig.register(new LoggingFilter(log, ENABLE_RESPONSE_LOGGING ? null : 0));
}
private boolean isLoggingEnabled() {
return parseBoolean(environment.getProperty(LOGGING_ENABLED_PROPERTY));
}
private boolean isEnabledByActiveProfiles(AnnotatedElement annotatedElement) {
return !annotatedElement.isAnnotationPresent(Profile.class) ||
environment.acceptsProfiles(annotatedElement.getAnnotation(Profile.class).value());
}
private class MissingFilterPriorityException extends RuntimeException {
private MissingFilterPriorityException(Class<?> clazz) {
super("Container filter " + clazz.getName() + " does not have @Priority annotation");
}
}
}
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