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             //
  67             // Initialize the applications - SEND PROPERTIES
  68             //
  69             XacmlPdpApplicationManager.initializeApplications(Paths.get(applicationPath));
  70             //
  71             // Update statistics manager on the policy types
  72             //
  73             XacmlPdpStatisticsManager.setTotalPolicyTypesCount(XacmlPdpApplicationManager.getPolicyTypeCount());
  74             //
  75             // Get the server properties
  76             //
  77             servers = HttpServletServer.factory.build(getServerProperties());
  78             //
  79             // Start all the servers
  80             //
  81             for (final HttpServletServer server : servers) {
  82                 if (server.isAaf()) {
  83                     server.addFilterClass(null, XacmlPdpAafFilter.class.getCanonicalName());
  84                 }
  85                 server.start();
  86             }
  87         } catch (final Exception exp) {
  88             LOGGER.error("Failed to start xacml pdp http server", exp);
  89             return false;
  90         }
  91         return true;
  92     }
  93
  94     /**
  95      * Creates the server properties object using restServerParameters.
  96      *
  97      * @return the properties object
  98      */
  99     private Properties getServerProperties() {
 100         final Properties props = new Properties();
 101         props.setProperty(HTTP_SERVER_SERVICES, restServerParameters.getName());
 102         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".host",
 103                 restServerParameters.getHost());
 104         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".port",
 105                 Integer.toString(restServerParameters.getPort()));
 106         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".restClasses",
 107                 XacmlPdpRestController.class.getCanonicalName());
 108         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".managed", "false");
 109         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".swagger", "true");
 110         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".userName",
 111                 restServerParameters.getUserName());
 112         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".password",
 113                 restServerParameters.getPassword());
 114         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".https",
 115                 String.valueOf(restServerParameters.isHttps()));
 116         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".aaf",
 117                 String.valueOf(restServerParameters.isAaf()));
 118         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".serialization.provider",
 119                 GsonMessageBodyHandler.class.getName());
 120         return props;
 121     }
 122
 123     /**
 124      * {@inheritDoc}.
 125      */
 126     @Override
 127     public boolean stop() {
 128         for (final HttpServletServer server : servers) {
 129             try {
 130                 server.shutdown();
 131             } catch (final Exception exp) {
 132                 LOGGER.error("Failed to stop xacml pdp http server", exp);
 133             }
 134         }
 135         return true;
 136     }
 137
 138     /**
 139      * {@inheritDoc}.
 140      */
 141     @Override
 142     public void shutdown() {
 143         stop();
 144     }
 145
 146     /**
 147      * {@inheritDoc}.
 148      */
 149     @Override
 150     public boolean isAlive() {
 151         return !servers.isEmpty();
 152     }
 153
 154     /**
 155      * {@inheritDoc}.
 156      */
 157     @Override
 158     public String toString() {
 159         final StringBuilder builder = new StringBuilder();
 160         builder.append("XacmlPdpRestServer [servers=");
 161         builder.append(servers);
 162         builder.append("]");
 163         return builder.toString();
 164     }
 165
 166 }