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             //
  72             // Update statistics manager on the policy types
  73             //
  74             XacmlPdpStatisticsManager.setTotalPolicyTypesCount(XacmlPdpApplicationManager.getPolicyTypeCount());
  75
  76             //
  77             // Get the server properties
  78             //
  79             servers = HttpServletServer.factory.build(getServerProperties());
  80             //
  81             // Start all the servers
  82             //
  83             for (final HttpServletServer server : servers) {
  84                 if (server.isAaf()) {
  85                     server.addFilterClass(null, XacmlPdpAafFilter.class.getCanonicalName());
  86                 }
  87                 server.start();
  88             }
  89         } catch (final Exception exp) {
  90             LOGGER.error("Failed to start xacml pdp http server", exp);
  91             return false;
  92         }
  93         return true;
  94     }
  95
  96     /**
  97      * Creates the server properties object using restServerParameters.
  98      *
  99      * @return the properties object
 100      */
 101     private Properties getServerProperties() {
 102         final Properties props = new Properties();
 103         props.setProperty(HTTP_SERVER_SERVICES, restServerParameters.getName());
 104         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".host",
 105                 restServerParameters.getHost());
 106         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".port",
 107                 Integer.toString(restServerParameters.getPort()));
 108         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".restClasses",
 109                 XacmlPdpRestController.class.getCanonicalName());
 110         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".managed", "false");
 111         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".swagger", "true");
 112         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".userName",
 113                 restServerParameters.getUserName());
 114         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".password",
 115                 restServerParameters.getPassword());
 116         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".https",
 117                 String.valueOf(restServerParameters.isHttps()));
 118         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".aaf",
 119                 String.valueOf(restServerParameters.isAaf()));
 120         props.setProperty(HTTP_SERVER_SERVICES + SEPARATOR + restServerParameters.getName() + ".serialization.provider",
 121                 GsonMessageBodyHandler.class.getName());
 122         return props;
 123     }
 124
 125     /**
 126      * {@inheritDoc}.
 127      */
 128     @Override
 129     public boolean stop() {
 130         for (final HttpServletServer server : servers) {
 131             try {
 132                 server.shutdown();
 133             } catch (final Exception exp) {
 134                 LOGGER.error("Failed to stop xacml pdp http server", exp);
 135             }
 136         }
 137         return true;
 138     }
 139
 140     /**
 141      * {@inheritDoc}.
 142      */
 143     @Override
 144     public void shutdown() {
 145         stop();
 146     }
 147
 148     /**
 149      * {@inheritDoc}.
 150      */
 151     @Override
 152     public boolean isAlive() {
 153         return !servers.isEmpty();
 154     }
 155
 156     /**
 157      * {@inheritDoc}.
 158      */
 159     @Override
 160     public String toString() {
 161         final StringBuilder builder = new StringBuilder();
 162         builder.append("XacmlPdpRestServer [servers=");
 163         builder.append(servers);
 164         builder.append("]");
 165         return builder.toString();
 166     }
 167
 168 }