/**
 * Licensed to jclouds, Inc. (jclouds) under one or more
 * contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  jclouds 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.cloudsigma.functions;

import static com.google.common.base.Preconditions.checkNotNull;

import java.util.Map;

import javax.inject.Singleton;

import org.jclouds.cloudsigma.domain.ClaimType;
import org.jclouds.cloudsigma.domain.Drive;

import com.google.common.base.Function;
import com.google.common.base.Joiner;
import com.google.common.collect.ImmutableMap;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class BaseDriveToMap implements Function<Drive, Map<String, String>> {
   @Override
   public Map<String, String> apply(Drive from) {
      checkNotNull(from, "drive");
      ImmutableMap.Builder<String, String> builder = ImmutableMap.builder();
      builder.put("name", from.getName());
      builder.put("size", from.getSize() + "");
      if (from.getClaimType() != ClaimType.EXCLUSIVE)
         builder.put("claim:type", from.getClaimType().toString());
      if (from.getTags().size() != 0)
          builder.put("tags", Joiner.on(' ').join(from.getTags()));
      if (from.getReaders().size() != 0)
         builder.put("readers", Joiner.on(' ').join(from.getReaders()));
      if (from.getUse().size() != 0)
         builder.put("use", Joiner.on(' ').join(from.getUse()));
      return builder.build();
   }
}