/**
 * 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.samples.googleappengine.functions;

import javax.annotation.Resource;
import javax.inject.Singleton;

import org.jclouds.blobstore.BlobStoreContext;
import org.jclouds.logging.Logger;
import org.jclouds.samples.googleappengine.domain.StatusResult;

import com.google.common.base.Function;

/**
 * 
 * @author Adrian Cole
 */
@Singleton
public class BlobStoreContextToStatusResult implements Function<BlobStoreContext, StatusResult> {

   @Resource
   protected Logger logger = Logger.NULL;

   public StatusResult apply(BlobStoreContext in) {
      String host = in.getProviderSpecificContext().getEndpoint().getHost();
      String status;
      String name = "not found";
      try {
         long start = System.currentTimeMillis();

         name = String.format("%d containers", in.getBlobStore().list().size());

         status = ((System.currentTimeMillis() - start) + "ms");
      } catch (Exception e) {
         logger.error(e, "Error listing context %s", in);
         status = (e.getMessage());
      }
      return new StatusResult(in.getProviderSpecificContext().getId(), host, name, status);
   }
}