public NodeMetadata apply()

in apis/cloudstack/src/main/java/org/jclouds/cloudstack/compute/functions/VirtualMachineToNodeMetadata.java [93:191]
83 lines of code
16 McCabe index (conditional complexity)

   public NodeMetadata apply(final VirtualMachine from) {
      // convert the result object to a jclouds NodeMetadata
      NodeMetadataBuilder builder = new NodeMetadataBuilder();
      builder.ids(from.getId() + "");
      builder.name(from.getName());
      // TODO: in cloudstack 2.2.12, when "name" was set fine on the backend,
      // but wrong API response was returned to the user
      // http://bugs.cloud.com/show_bug.cgi?id=11664
      //
      // we set displayName to the same value as name, but this could be wrong
      // on hosts not started with jclouds
      builder.hostname(from.getDisplayName());
      builder.location(FluentIterable.from(locations.get()).firstMatch(idEquals(from.getZoneId())).orNull());
      if (from.getGroup() != null) {
         builder.group(from.getGroup());
      } else if (from.getDisplayName() != null) {
         builder.group(nodeNamingConvention.groupInUniqueNameOrNull(from.getDisplayName()));
      }
      Image image = FluentIterable.from(images.get()).firstMatch(new Predicate<Image>() {
         @Override
         public boolean apply(Image input) {
            return input.getProviderId().equals(from.getTemplateId() + "")
            // either location free image (location is null) or in the same zone as the VM
                  && (input.getLocation() == null || input.getId().equals(from.getZoneId() + ""));
         }
      }).orNull();
      if (image != null) {
         builder.imageId(image.getId());
         builder.operatingSystem(image.getOperatingSystem());
      }

      if (!from.getTags().isEmpty()) {
         ImmutableMap.Builder<String, String> tagsBuilder = ImmutableMap.<String, String>builder();

         for (Tag tag : from.getTags()) {
            tagsBuilder.put(tag.getKey(), tag.getValue());
         }

         Map<String, String> tagMap = tagsBuilder.build();
         builder.tags(filterValues(tagMap, equalTo("jclouds-empty-tag-placeholder")).keySet())
               .userMetadata(filterValues(tagMap, not(equalTo("jclouds-empty-tag-placeholder"))));
      }

      builder.hardware(new HardwareBuilder()
        .ids(from.getServiceOfferingId() + "")
        .name(from.getServiceOfferingName() + "")
        .processors(ImmutableList.of(new Processor(from.getCpuCount(), from.getCpuSpeed())))
        .ram((int)from.getMemory())//
        .hypervisor(from.getHypervisor())//
        .build());

      builder.status(vmStateToNodeStatus.get(from.getState()));

      Set<String> publicAddresses = newHashSet();
      Set<String> privateAddresses = newHashSet();
      if (from.getIPAddress() != null) {
         boolean isPrivate = isPrivateIPAddress(from.getIPAddress());
         if (isPrivate) {
            privateAddresses.add(from.getIPAddress());
         } else {
            publicAddresses.add(from.getIPAddress());
         }
      }
      if (from.getPublicIP() != null) {
          publicAddresses.add(from.getPublicIP());
      }
      for (NIC nic : from.getNICs()) {
         if (nic.getIPAddress() != null) {
            if (isPrivateIPAddress(nic.getIPAddress())) {
               privateAddresses.add(nic.getIPAddress());
            } else {
               publicAddresses.add(nic.getIPAddress());
            }
         }
      }
      try {
         /* Also add to the list of public IPs any public IP address that has a
            forwarding rule that links to this machine */
         Iterables.addAll(publicAddresses, transform(
            filter(getIPForwardingRulesByVirtualMachine.getUnchecked(from.getId()),
               new Predicate<IPForwardingRule>() {
                  @Override
                  public boolean apply(IPForwardingRule rule) {
                     return !"Deleting".equals(rule.getState());
                  }
               }), new Function<IPForwardingRule, String>() {
            @Override
            public String apply(IPForwardingRule rule) {
               return rule.getIPAddress();
            }
         }));
      } catch (UncheckedExecutionException e) {
         if (Throwables2.getFirstThrowableOfType(e, ResourceNotFoundException.class) == null) {
            Throwables.propagateIfPossible(e.getCause());
            throw e;
         }
      }
      return builder.privateAddresses(privateAddresses).publicAddresses(publicAddresses).build();
   }