gerrit.onap Code Review - policy/drools-pdp.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * policy-endpoints
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20 package org.openecomp.policy.drools.http.server;
  21
  22 import java.util.ArrayList;
  23 import java.util.Arrays;
  24 import java.util.HashMap;
  25 import java.util.List;
  26 import java.util.Properties;
  27
  28 import org.slf4j.LoggerFactory;
  29 import org.slf4j.Logger;
  30 import org.openecomp.policy.drools.http.server.internal.JettyJerseyServer;
  31 import org.openecomp.policy.drools.properties.PolicyProperties;
  32
  33 /**
  34  * Factory of HTTP Servlet-Enabled Servlets
  35  */
  36 public interface HttpServletServerFactory {
  37
  38         /**
  39          * builds an http server with support for servlets
  40          *
  41          * @param name name
  42          * @param host binding host
  43          * @param port port
  44          * @param contextPath server base path
  45          * @param swagger enable swagger documentation
  46          * @param managed is it managed by infrastructure
  47          * @return http server
  48          * @throws IllegalArgumentException when invalid parameters are provided
  49          */
  50         public HttpServletServer build(String name, String host, int port, String contextPath,
  51                                                boolean swagger, boolean managed)
  52                    throws IllegalArgumentException;
  53
  54         /**
  55          * list of http servers per properties
  56          *
  57          * @param properties properties based configuration
  58          * @return list of http servers
  59          * @throws IllegalArgumentException when invalid parameters are provided
  60          */
  61         public ArrayList<HttpServletServer> build(Properties properties) throws IllegalArgumentException;
  62
  63         /**
  64          * gets a server based on the port
  65          *
  66          * @param port port
  67          * @return http server
  68          */
  69         public HttpServletServer get(int port);
  70
  71         /**
  72          * provides an inventory of servers
  73          *
  74          * @return inventory of servers
  75          */
  76         public List<HttpServletServer> inventory();
  77
  78         /**
  79          * destroys server bound to a port
  80          * @param port
  81          */
  82         public void destroy(int port);
  83
  84         /**
  85          * destroys the factory and therefore all servers
  86          */
  87         public void destroy();
  88 }
  89
  90 /**
  91  * Indexed factory implementation
  92  */
  93 class IndexedHttpServletServerFactory implements HttpServletServerFactory {
  94
  95         /**
  96          * logger
  97          */
  98         protected static Logger logger = LoggerFactory.getLogger(IndexedHttpServletServerFactory.class);
  99
 100         /**
 101          * servers index
 102          */
 103         protected HashMap<Integer, HttpServletServer> servers = new HashMap<Integer, HttpServletServer>();
 104
 105         @Override
 106         public synchronized HttpServletServer build(String name, String host, int port,
 107                                                             String contextPath, boolean swagger,
 108                                                             boolean managed)
 109                 throws IllegalArgumentException {
 110
 111                 if (servers.containsKey(port))
 112                         return servers.get(port);
 113
 114                 JettyJerseyServer server = new JettyJerseyServer(name, host, port, contextPath, swagger);
 115                 if (managed)
 116                         servers.put(port, server);
 117
 118                 return server;
 119         }
 120
 121         @Override
 122         public synchronized ArrayList<HttpServletServer> build(Properties properties)
 123                 throws IllegalArgumentException {
 124
 125                 ArrayList<HttpServletServer> serviceList = new ArrayList<HttpServletServer>();
 126
 127                 String serviceNames = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES);
 128                 if (serviceNames == null || serviceNames.isEmpty()) {
 129                         logger.warn("No topic for HTTP Service: {}", properties);
 130                         return serviceList;
 131                 }
 132
 133                 List<String> serviceNameList =
 134                                 new ArrayList<String>(Arrays.asList(serviceNames.split("\\s*,\\s*")));
 135
 136                 for (String serviceName : serviceNameList) {
 137                         String servicePortString = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 138                                                                       serviceName +
 139                                                                       PolicyProperties.PROPERTY_HTTP_PORT_SUFFIX);
 140
 141                         int servicePort;
 142                         try {
 143                                 if (servicePortString == null || servicePortString.isEmpty()) {
 144                                         if (logger.isWarnEnabled())
 145                                                 logger.warn("No HTTP port for service in {}", serviceName);
 146                                         continue;
 147                                 }
 148                                 servicePort = Integer.parseInt(servicePortString);
 149                         } catch (NumberFormatException nfe) {
 150                                 if (logger.isWarnEnabled())
 151                                         logger.warn("No HTTP port for service in {}", serviceName);
 152                                 continue;
 153                         }
 154
 155                         String hostName = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 156                                                      serviceName +
 157                                                      PolicyProperties.PROPERTY_HTTP_HOST_SUFFIX);
 158
 159                         String contextUriPath = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 160                                                         serviceName +
 161                                                         PolicyProperties.PROPERTY_HTTP_CONTEXT_URIPATH_SUFFIX);
 162
 163                         String userName = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 164                                                                          serviceName +
 165                                                      PolicyProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX);
 166
 167                         String password = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 168                                                      serviceName +
 169                                                      PolicyProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX);
 170
 171                         String authUriPath = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 172                                                         serviceName +
 173                                                         PolicyProperties.PROPERTY_HTTP_AUTH_URIPATH_SUFFIX);
 174
 175                         String restClasses = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 176                                                       serviceName +
 177                                                       PolicyProperties.PROPERTY_HTTP_REST_CLASSES_SUFFIX);
 178
 179                         String restPackages = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 180                                                         serviceName +
 181                                                         PolicyProperties.PROPERTY_HTTP_REST_PACKAGES_SUFFIX);
 182                         String restUriPath = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 183                                                          serviceName +
 184                                                          PolicyProperties.PROPERTY_HTTP_REST_URIPATH_SUFFIX);
 185
 186                         String managedString = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 187                                                           serviceName +
 188                                                           PolicyProperties.PROPERTY_MANAGED_SUFFIX);
 189                         boolean managed = true;
 190                         if (managedString != null && !managedString.isEmpty()) {
 191                                 managed = Boolean.parseBoolean(managedString);
 192                         }
 193
 194                         String swaggerString = properties.getProperty(PolicyProperties.PROPERTY_HTTP_SERVER_SERVICES + "." +
 195                                                                                               serviceName +
 196                                                                                               PolicyProperties.PROPERTY_HTTP_SWAGGER_SUFFIX);
 197                         boolean swagger = false;
 198                         if (swaggerString != null && !swaggerString.isEmpty()) {
 199                                 swagger = Boolean.parseBoolean(swaggerString);
 200                         }
 201
 202                         HttpServletServer service = build(serviceName, hostName, servicePort, contextUriPath, swagger, managed);
 203                         if (userName != null && !userName.isEmpty() && password != null && !password.isEmpty()) {
 204                                 service.setBasicAuthentication(userName, password, authUriPath);
 205                         }
 206
 207                         if (restClasses != null && !restClasses.isEmpty()) {
 208                                 List<String> restClassesList =
 209                                                 new ArrayList<String>(Arrays.asList(restClasses.split("\\s*,\\s*")));
 210                                 for (String restClass : restClassesList)
 211                                         service.addServletClass(restUriPath, restClass);
 212                         }
 213
 214                         if (restPackages != null && !restPackages.isEmpty()) {
 215                                 List<String> restPackageList =
 216                                                 new ArrayList<String>(Arrays.asList(restPackages.split("\\s*,\\s*")));
 217                                 for (String restPackage : restPackageList)
 218                                         service.addServletPackage(restUriPath, restPackage);
 219                         }
 220
 221                         serviceList.add(service);
 222                 }
 223
 224                 return serviceList;
 225         }
 226
 227         @Override
 228         public synchronized HttpServletServer get(int port) throws IllegalArgumentException {
 229
 230                 if (servers.containsKey(port)) {
 231                         return servers.get(port);
 232                 }
 233
 234                 throw new IllegalArgumentException("Http Server for " + port + " not found");
 235         }
 236
 237         @Override
 238         public synchronized List<HttpServletServer> inventory() {
 239                  return new ArrayList<HttpServletServer>(this.servers.values());
 240         }
 241
 242         @Override
 243         public synchronized void destroy(int port) throws IllegalArgumentException, IllegalStateException {
 244
 245                 if (!servers.containsKey(port)) {
 246                         return;
 247                 }
 248
 249                 HttpServletServer server = servers.remove(port);
 250                 server.shutdown();
 251         }
 252
 253         @Override
 254         public synchronized void destroy() throws IllegalArgumentException, IllegalStateException {
 255                 List<HttpServletServer> servers = this.inventory();
 256                 for (HttpServletServer server: servers) {
 257                         server.shutdown();
 258                 }
 259
 260                 synchronized(this) {
 261                         this.servers.clear();
 262                 }
 263         }
 264
 265 }