openstack-swift/src/main/java/org/jclouds/openstack/swift/v1/functions/ParseAccountMetadataResponseFromHeaders.java

/**
 * 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.openstack.swift.v1.functions;

import org.jclouds.http.HttpResponse;
import org.jclouds.openstack.swift.v1.domain.Account;

import com.google.common.base.Function;

/**
 * This parses {@link Account} from HTTP headers.
 * 
 * @author James Murty
 */
public class ParseAccountMetadataResponseFromHeaders implements Function<HttpResponse, Account> {

   /**
    * parses the http response headers to create a new {@link Account} object.
    */
   public Account apply(HttpResponse from) {
      return Account.builder()
               .bytesUsed(Long.parseLong(from.getFirstHeaderOrNull("X-Account-Bytes-Used")))
               .containerCount(Integer.parseInt(from.getFirstHeaderOrNull("X-Account-Container-Count")))
               .build();
   }
}