content: package org.lightfish.business.servermonitoring.control;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  import java.util.Set;
  import javax.enterprise.inject.Instance;
  import javax.inject.Inject;
  import javax.json.JsonObject;
  import javax.json.JsonValue;
  import javax.ws.rs.client.Client;
  import javax.ws.rs.client.WebTarget;
  import javax.ws.rs.core.MediaType;
  import org.lightfish.business.authenticator.GlassfishAuthenticator;
  import org.lightfish.business.servermonitoring.entity.Domain;
  
  /**
   * User: Rob Veldpaus
   */
  public class DomainProvider {
  
      @Inject
      protected Client client;
      @Inject
      Instance<String> location;
      @Inject
      Instance<String> username;
      @Inject
      Instance<String> password;
      @Inject
      Instance<GlassfishAuthenticator> authenticator;
      private WebTarget managementResource;
  
      List<String> getInstances() {
          this.managementResource = this.client.target(getInstancesUri());
          JsonObject serverResult = getJsonObject("server");
          JsonObject extraProperties = serverResult.getJsonObject("extraProperties");
          JsonObject result = extraProperties.getJsonObject("childResources");
          Set<Map.Entry<String, JsonValue>> entrySet = result.entrySet();
          List<String> instanceNames = new ArrayList<>();
          for (Map.Entry<String, JsonValue> entry : entrySet) {
              instanceNames.add(entry.getKey());
          }
          return instanceNames;
      }
  
      JsonObject getJsonObject(String name) {
          return this.managementResource.path(name).request(MediaType.APPLICATION_JSON).get(JsonObject.class);
      }
  
      String getInstancesUri() {
          return getProtocol() + location.get() + "/management/domain/servers";
      }
  
      public Domain fetchDomainInfo() {
          //TODO migrate authenticator
          // authenticator.get().addAuthenticator(client, username.get(), password.get());
          List<String> servers = null;
          try {
              servers = getInstances();
  
          } catch (Exception e) {
              throw new IllegalStateException("Cannot fetch domain information because of: " + e);
          }
          return new Domain.Builder().instances(servers).build();
      }
  
      private String getProtocol() {
          String protocol = "http://";
          if (username != null && username.get() != null && !username.get().isEmpty()) {
              protocol = "https://";
          }
          return protocol;
      }
  }
  