main/src/main/java/org/onap/policy/api/main/rest/ApiRestServer.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP Policy API
   4  * ================================================================================
   5  * Copyright (C) 2018 Samsung Electronics Co., Ltd. All rights reserved.
   6  * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
   7  * ================================================================================
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  * SPDX-License-Identifier: Apache-2.0
  21  * ============LICENSE_END=========================================================
  22  */
  23
  24 package org.onap.policy.api.main.rest;
  25
  26 import java.util.ArrayList;
  27 import java.util.List;
  28 import java.util.Properties;
  29 import org.onap.policy.api.main.parameters.RestServerParameters;
  30 import org.onap.policy.api.main.rest.aaf.AafApiFilter;
  31 import org.onap.policy.common.capabilities.Startable;
  32 import org.onap.policy.common.endpoints.http.server.HttpServletServer;
  33 import org.onap.policy.common.endpoints.properties.PolicyEndPointProperties;
  34 import org.onap.policy.models.tosca.serialization.simple.ToscaServiceTemplateMessageBodyHandler;
  35 import org.slf4j.Logger;
  36 import org.slf4j.LoggerFactory;
  37
  38
  39 /**
  40  * Class to manage life cycle of api rest server.
  41  *
  42  */
  43 public class ApiRestServer implements Startable {
  44
  45     private static final Logger LOGGER = LoggerFactory.getLogger(ApiRestServer.class);
  46
  47     private List<HttpServletServer> servers = new ArrayList<>();
  48
  49     private RestServerParameters restServerParameters;
  50
  51     /**
  52      * Constructor for instantiating ApiRestServer.
  53      *
  54      * @param restServerParameters the rest server parameters
  55      */
  56     public ApiRestServer(final RestServerParameters restServerParameters) {
  57         this.restServerParameters = restServerParameters;
  58     }
  59
  60     /**
  61      * {@inheritDoc}.
  62      */
  63     @Override
  64     public boolean start() {
  65         try {
  66             servers = HttpServletServer.factory.build(getServerProperties());
  67             for (HttpServletServer server : servers) {
  68                 if (server.isAaf()) {
  69                     server.addFilterClass(null, AafApiFilter.class.getCanonicalName());
  70                 }
  71                 server.start();
  72             }
  73         } catch (final Exception exp) {
  74             LOGGER.error("Failed to start api http server", exp);
  75             return false;
  76         }
  77         return true;
  78     }
  79
  80     /**
  81      * Creates the server properties object using restServerParameters.
  82      *
  83      * @return the properties object
  84      */
  85     private Properties getServerProperties() {
  86         final Properties props = new Properties();
  87         final String svcpfx =
  88                 PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES + "." + restServerParameters.getName();
  89
  90         props.setProperty(PolicyEndPointProperties.PROPERTY_HTTP_SERVER_SERVICES, restServerParameters.getName());
  91         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_HOST_SUFFIX, restServerParameters.getHost());
  92         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_PORT_SUFFIX,
  93                         Integer.toString(restServerParameters.getPort()));
  94         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_REST_CLASSES_SUFFIX,
  95                         ApiRestController.class.getCanonicalName());
  96         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_MANAGED_SUFFIX, "false");
  97         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_SWAGGER_SUFFIX, "true");
  98         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_USERNAME_SUFFIX,
  99                         restServerParameters.getUserName());
 100         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_AUTH_PASSWORD_SUFFIX,
 101                         restServerParameters.getPassword());
 102         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_HTTPS_SUFFIX,
 103                         String.valueOf(restServerParameters.isHttps()));
 104         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_AAF_SUFFIX,
 105                         String.valueOf(restServerParameters.isAaf()));
 106         props.setProperty(svcpfx + PolicyEndPointProperties.PROPERTY_HTTP_SERIALIZATION_PROVIDER,
 107                         ToscaServiceTemplateMessageBodyHandler.class.getName());
 108
 109         return props;
 110     }
 111
 112     /**
 113      * {@inheritDoc}.
 114      */
 115     @Override
 116     public boolean stop() {
 117         for (final HttpServletServer server : servers) {
 118             try {
 119                 server.stop();
 120             } catch (final Exception exp) {
 121                 LOGGER.error("Failed to stop api http server", exp);
 122             }
 123         }
 124         return true;
 125     }
 126
 127     /**
 128      * {@inheritDoc}.
 129      */
 130     @Override
 131     public void shutdown() {
 132         stop();
 133     }
 134
 135     /**
 136      * {@inheritDoc}.
 137      */
 138     @Override
 139     public boolean isAlive() {
 140         return !servers.isEmpty();
 141     }
 142
 143     /**
 144      * {@inheritDoc}.
 145      */
 146     @Override
 147     public String toString() {
 148         final StringBuilder builder = new StringBuilder();
 149         builder.append("ApiRestServer [servers=");
 150         builder.append(servers);
 151         builder.append("]");
 152         return builder.toString();
 153     }
 154
 155 }