main/src/main/java/org/onap/policy/pdpx/main/rest/XacmlPdpRestServer.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   4  * ================================================================================
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *      http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  *
  17  * SPDX-License-Identifier: Apache-2.0
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.onap.policy.pdpx.main.rest;
  22
  23 import java.nio.file.Paths;
  24 import java.util.ArrayList;
  25 import java.util.List;
  26 import java.util.Properties;
  27
  28 import org.onap.policy.common.capabilities.Startable;
  29 import org.onap.policy.common.endpoints.http.server.HttpServletServer;
  30 import org.onap.policy.common.gson.GsonMessageBodyHandler;
  31 import org.onap.policy.pdpx.main.parameters.RestServerParameters;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * Class to manage life cycle of xacml pdp rest server.
  37  *
  38  */
  39 public class XacmlPdpRestServer implements Startable {
  40
  41     private static final String SEPARATOR = ".";
  42     private static final String HTTP_SERVER_SERVICES = "http.server.services";
  43     private static final Logger LOGGER = LoggerFactory.getLogger(XacmlPdpRestServer.class);
  44
  45     private List<HttpServletServer> servers = new ArrayList<>();
  46
  47     private RestServerParameters restServerParameters;
  48     private String applicationPath;
  49
  50     /**
  51      * Constructor for instantiating XacmlPdpRestServer.
  52      *
  53      * @param restServerParameters the rest server parameters
  54      */
  55     public XacmlPdpRestServer(final RestServerParameters restServerParameters, final String applicationPath) {
  56         this.restServerParameters = restServerParameters;
  57         this.applicationPath = applicationPath;
  58     }
  59
  60     /**
  61      * {@inheritDoc}.
  62      */
  63     @Override
  64     public boolean start() {
  65         try {
  66             LOGGER.info("Starting XacmlPdpRestServer...");
  67             //
  68             // Initialize the applications - SEND PROPERTIES
  69             //
  70             XacmlPdpApplicationManager.initializeApplications(Paths.get(applicationPath));
  71
  72             //
  73             // Update statistics manager on the policy types
  74             //
  75             XacmlPdpStatisticsManager.setTotalPolicyTypesCount(XacmlPdpApplicationManager.getPolicyTypeCount());
  76
  77             //
  78             // Get the server properties
  79             //
  80             servers = HttpServletServer.factory.build(getServerProperties());
  81             //
  82             // Start all the servers
  83             //
  84             for (final HttpServletServer server : servers) {
  85                 if (server.isAaf()) {
  86                     server.addFilterClass(null, XacmlPdpAafFilter.class.getCanonicalName());
  87                 }
  88                 server.start();
  89             }
  90             LOGGER.info("servers are started");
  91         } catch (final Exception exp) {
  92             LOGGER.error("Failed to start xacml pdp http server", exp);
  93             return false;
  94         }
  95         return true;
  96     }
  97
  98     /**
  99      * Creates the server properties object using restServerParameters.
 100      *
 101      * @return the properties object
 102      */
 103     private Properties getServerProperties() {
 104         final Properties props = new Properties();
 105         props.setProperty(HTTP_SERVER_SERVICES, restServerParameters.getName());
 106         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".host",
 107                 restServerParameters.getHost());
 108         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".port",
 109                 Integer.toString(restServerParameters.getPort()));
 110         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".restClasses",
 111                 XacmlPdpRestController.class.getCanonicalName());
 112         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".managed", "false");
 113         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".swagger", "true");
 114         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".userName",
 115                 restServerParameters.getUserName());
 116         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".password",
 117                 restServerParameters.getPassword());
 118         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".https",
 119                 String.valueOf(restServerParameters.isHttps()));
 120         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".aaf",
 121                 String.valueOf(restServerParameters.isAaf()));
 122         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".serialization.provider",
 123                 GsonMessageBodyHandler.class.getName());
 124         return props;
 125     }
 126
 127     /**
 128      * {@inheritDoc}.
 129      */
 130     @Override
 131     public boolean stop() {
 132         for (final HttpServletServer server : servers) {
 133             try {
 134                 server.shutdown();
 135             } catch (final Exception exp) {
 136                 LOGGER.error("Failed to stop xacml pdp http server", exp);
 137             }
 138         }
 139         return true;
 140     }
 141
 142     /**
 143      * {@inheritDoc}.
 144      */
 145     @Override
 146     public void shutdown() {
 147         stop();
 148     }
 149
 150     /**
 151      * {@inheritDoc}.
 152      */
 153     @Override
 154     public boolean isAlive() {
 155         return !servers.isEmpty();
 156     }
 157
 158     /**
 159      * {@inheritDoc}.
 160      */
 161     @Override
 162     public String toString() {
 163         final StringBuilder builder = new StringBuilder();
 164         builder.append("XacmlPdpRestServer [servers=");
 165         builder.append(servers);
 166         builder.append("]");
 167         return builder.toString();
 168     }
 169
 170 }