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/*
* ============LICENSE_START=======================================================
* ONAP Policy Engine - Common Modules
* ================================================================================
* Copyright (C) 2017-2019 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.policy.common.endpoints.http.server;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Properties;
import org.apache.commons.lang3.StringUtils;
import org.onap.policy.common.endpoints.http.server.internal.JettyJerseyServer;
import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
import org.onap.policy.common.endpoints.utils.PropertyUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Indexed factory implementation.
*/
class IndexedHttpServletServerFactory implements HttpServletServerFactory {
private static final String SPACES_COMMA_SPACES = "\\s*,\\s*";
/**
* logger.
*/
protected static Logger logger = LoggerFactory.getLogger(IndexedHttpServletServerFactory.class);
/**
* servers index.
*/
protected HashMap<Integer, HttpServletServer> servers = new HashMap<>();
@Override
public synchronized HttpServletServer build(String name, boolean https, String host, int port, String contextPath,
boolean swagger, boolean managed) {
if (servers.containsKey(port)) {
return servers.get(port);
}
JettyJerseyServer server = new JettyJerseyServer(name, https, host, port, contextPath, swagger);
if (managed) {
servers.put(port, server);
}
return server;
}
@Override
public synchronized HttpServletServer build(String name, String host, int port, String contextPath, boolean swagger,
boolean managed) {
return build(name, false, host, port, contextPath, swagger, managed);
}
@Override
public synchronized List<HttpServletServer> build(Properties properties) {
ArrayList<HttpServletServer> serviceList = new ArrayList<>();
String serviceNames = properties.getProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES);
if (StringUtils.isBlank(serviceNames)) {
logger.warn("No topic for HTTP Service: {}", properties);
return serviceList;
}
for (String serviceName : serviceNames.split(SPACES_COMMA_SPACES)) {
addService(serviceList, serviceName, properties);
}
return serviceList;
}
private void addService(ArrayList<HttpServletServer> serviceList, String serviceName, Properties properties) {
String servicePrefix = PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + serviceName;
PropertyUtils props = new PropertyUtils(properties, servicePrefix,
(name, value, ex) -> logger
.warn("{}: {} {} is in invalid format for http service {} ", this, name, value, serviceName));
int servicePort = props.getInteger(PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX, -1);
if (servicePort < 0) {
logger.warn("No HTTP port for service in {}", serviceName);
return;
}
final String hostName = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, null);
final String contextUriPath =
props.getString(PolicyEndPointProperties.PROPERTY_HTTP_CONTEXT_URIPATH_SUFFIX, null);
boolean managed = props.getBoolean(PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, true);
boolean swagger = props.getBoolean(PolicyEndPointProperties.PROPERTY_HTTP_SWAGGER_SUFFIX, false);
boolean https = props.getBoolean(PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX, false);
// create the service
HttpServletServer service = build(serviceName, https, hostName, servicePort, contextUriPath, swagger, managed);
// configure the service
setSerializationProvider(props, service);
setAuthentication(props, service, contextUriPath);
final String restUriPath = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_REST_URIPATH_SUFFIX, null);
addFilterClasses(props, service, restUriPath);
addServletClasses(props, service, restUriPath);
addServletPackages(props, service, restUriPath);
serviceList.add(service);
}
private void setSerializationProvider(PropertyUtils props, HttpServletServer service) {
final String classProv = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_SERIALIZATION_PROVIDER, null);
if (!StringUtils.isBlank(classProv)) {
service.setSerializationProvider(classProv);
}
}
private void setAuthentication(PropertyUtils props, HttpServletServer service, final String contextUriPath) {
/* authentication method either AAF or HTTP Basic Auth */
boolean aaf = props.getBoolean(PolicyEndPointProperties.PROPERTY_AAF_SUFFIX, false);
final String userName = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX, null);
final String password = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX, null);
final String authUriPath = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_AUTH_URIPATH_SUFFIX, null);
if (aaf) {
service.setAafAuthentication(contextUriPath);
} else if (!StringUtils.isBlank(userName) && !StringUtils.isBlank(password)) {
service.setBasicAuthentication(userName, password, authUriPath);
}
}
private void addFilterClasses(PropertyUtils props, HttpServletServer service, final String restUriPath) {
final String filterClasses =
props.getString(PolicyEndPointProperties.PROPERTY_HTTP_FILTER_CLASSES_SUFFIX, null);
if (!StringUtils.isBlank(filterClasses)) {
for (String filterClass : filterClasses.split(SPACES_COMMA_SPACES)) {
service.addFilterClass(restUriPath, filterClass);
}
}
}
private void addServletClasses(PropertyUtils props, HttpServletServer service, final String restUriPath) {
final String restClasses = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_REST_CLASSES_SUFFIX, null);
if (!StringUtils.isBlank(restClasses)) {
for (String restClass : restClasses.split(SPACES_COMMA_SPACES)) {
service.addServletClass(restUriPath, restClass);
}
}
}
private void addServletPackages(PropertyUtils props, HttpServletServer service, final String restUriPath) {
final String restPackages = props.getString(PolicyEndPointProperties.PROPERTY_HTTP_REST_PACKAGES_SUFFIX, null);
if (!StringUtils.isBlank(restPackages)) {
for (String restPackage : restPackages.split(SPACES_COMMA_SPACES)) {
service.addServletPackage(restUriPath, restPackage);
}
}
}
@Override
public synchronized HttpServletServer get(int port) {
if (servers.containsKey(port)) {
return servers.get(port);
}
throw new IllegalArgumentException("Http Server for " + port + " not found");
}
@Override
public synchronized List<HttpServletServer> inventory() {
return new ArrayList<>(this.servers.values());
}
@Override
public synchronized void destroy(int port) {
if (!servers.containsKey(port)) {
return;
}
HttpServletServer server = servers.remove(port);
server.shutdown();
}
@Override
public synchronized void destroy() {
List<HttpServletServer> httpServletServers = this.inventory();
for (HttpServletServer server : httpServletServers) {
server.shutdown();
}
synchronized (this) {
this.servers.clear();
}
}
}
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