dimensiondata/src/main/java/org/jclouds/dimensiondata/cloudcontrol/compute/function/ServerToServerWithExternalIp.java

/*
 * 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.jclouds.dimensiondata.cloudcontrol.compute.function;

import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
import org.jclouds.dimensiondata.cloudcontrol.DimensionDataCloudControlApi;
import org.jclouds.dimensiondata.cloudcontrol.domain.NatRule;
import org.jclouds.dimensiondata.cloudcontrol.domain.Server;
import org.jclouds.dimensiondata.cloudcontrol.domain.internal.ServerWithExternalIp;

import javax.inject.Inject;
import javax.inject.Singleton;

@Singleton
public class ServerToServerWithExternalIp implements Function<Server, ServerWithExternalIp> {

   private final DimensionDataCloudControlApi api;

   @Inject
   ServerToServerWithExternalIp(DimensionDataCloudControlApi api) {
      this.api = api;
   }

   @Override
   public ServerWithExternalIp apply(final Server server) {
      if (server == null) {
         return null;
      }
      ServerWithExternalIp.Builder builder = ServerWithExternalIp.builder().server(server);

        if (server.networkInfo() != null) {
            Optional<NatRule> natRuleOptional = api.getNetworkApi().listNatRules(server.networkInfo().networkDomainId())
                  .concat().firstMatch(new Predicate<NatRule>() {
                      @Override public boolean apply(NatRule input) {
                          return input.internalIp().equalsIgnoreCase(server.networkInfo().primaryNic().privateIpv4());
                      }
                  });
            if (natRuleOptional.isPresent()) {
                builder.externalIp(natRuleOptional.get().externalIp());
            }
        }
        return builder.build();
    }
}