content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.apache.asterix.api.http.server;
  
  import java.io.IOException;
  import java.io.PrintWriter;
  import java.util.concurrent.ConcurrentMap;
  
  import org.apache.asterix.common.config.ExternalProperties;
  import org.apache.asterix.common.dataflow.ICcApplicationContext;
  import org.apache.hyracks.http.api.IServletRequest;
  import org.apache.hyracks.http.api.IServletResponse;
  import org.apache.hyracks.http.server.StaticResourceServlet;
  import org.apache.hyracks.http.server.utils.HttpUtil;
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.LogManager;
  import org.apache.logging.log4j.Logger;
  
  import com.fasterxml.jackson.databind.node.ObjectNode;
  
  import io.netty.handler.codec.http.HttpResponseStatus;
  
  public class QueryWebInterfaceServlet extends StaticResourceServlet {
      private static final Logger LOGGER = LogManager.getLogger();
      private ICcApplicationContext appCtx;
  
      QueryWebInterfaceServlet(ICcApplicationContext appCtx, ConcurrentMap<String, Object> ctx, String... paths) {
          super(ctx, paths);
          this.appCtx = appCtx;
      }
  
      @Override
      protected void get(IServletRequest request, IServletResponse response) throws IOException {
          String requestURI = request.getHttpRequest().uri();
          if ("/".equals(requestURI)) {
              HttpUtil.setContentType(response, HttpUtil.ContentType.TEXT_HTML);
              // Dashboard Administration Console
              deliverResource("/dashboard/index.html", response);
          } else {
              deliverResource(requestURI, response);
          }
      }
  
      @Override
      protected void post(IServletRequest request, IServletResponse response) throws IOException {
          HttpUtil.setContentType(response, HttpUtil.ContentType.APPLICATION_JSON, request);
          ExternalProperties externalProperties = appCtx.getExternalProperties();
          response.setStatus(HttpResponseStatus.OK);
          ObjectNode obj = OBJECT_MAPPER.createObjectNode();
          try {
              PrintWriter out = response.writer();
              obj.put("api_port", String.valueOf(externalProperties.getAPIServerPort()));
              out.println(obj.toString());
              return;
          } catch (Exception e) {
              LOGGER.log(Level.ERROR, "Failure writing response", e);
          }
          try {
              response.setStatus(HttpResponseStatus.INTERNAL_SERVER_ERROR);
          } catch (Exception e) {
              LOGGER.log(Level.ERROR, "Failure setting response status", e);
          }
      }
  }
  