cloudsigma2/src/main/java/org/jclouds/cloudsigma2/functions/TagToJson.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.cloudsigma2.functions;

import com.google.common.base.Function;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import com.google.gson.JsonPrimitive;
import org.jclouds.cloudsigma2.domain.Tag;
import org.jclouds.cloudsigma2.domain.TagResource;
import org.jclouds.javax.annotation.Nullable;

import javax.inject.Singleton;

@Singleton
public class TagToJson implements Function<Tag, JsonObject> {
   @Override
   public JsonObject apply(@Nullable Tag input) {
      JsonObject jsonTag = new JsonObject();

      if (input.getName() != null) {
         jsonTag.addProperty("name", input.getName());
      }

      if (input.getMeta() != null) {
         jsonTag.add("meta", new JsonParser().parse(new Gson().toJson(input.getMeta())));
      }

      if (input.getResources() != null && input.getResources().size() != 0) {
         JsonArray uuidsArray = new JsonArray();

         for (TagResource tagResource : input.getResources()) {
            uuidsArray.add(new JsonPrimitive(tagResource.getUuid()));
         }

         jsonTag.add("resources", uuidsArray);
      }

      return jsonTag;
   }
}