org.jclouds.blobstore.functions.BlobToHttpGetOptions Maven / Gradle / Ivy

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/**
 *
 * Copyright (C) 2010 Cloud Conscious, LLC. 
 *
 * ====================================================================
 * Licensed 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.blobstore.functions;

import javax.inject.Singleton;

import org.jclouds.http.options.GetOptions;

import com.google.common.base.Function;

/**
 * @author Adrian Cole
 */
@Singleton
public class BlobToHttpGetOptions implements
         Function {
   @Override
   public GetOptions apply(org.jclouds.blobstore.options.GetOptions from) {
      GetOptions httpOptions = new GetOptions();
      if (from != null && from != org.jclouds.blobstore.options.GetOptions.NONE) {
         if (from.getIfMatch() != null) {
            httpOptions.ifETagMatches(from.getIfMatch());
         }
         if (from.getIfModifiedSince() != null) {
            httpOptions.ifModifiedSince(from.getIfModifiedSince());
         }
         if (from.getIfNoneMatch() != null) {
            httpOptions.ifETagDoesntMatch(from.getIfNoneMatch());
         }
         if (from.getIfUnmodifiedSince() != null) {
            httpOptions.ifUnmodifiedSince(from.getIfUnmodifiedSince());
         }
         for (String range : from.getRanges()) {
            String[] firstLast = range.split("\\-");
            if (firstLast.length == 2)
               httpOptions.range(Long.parseLong(firstLast[0]), Long.parseLong(firstLast[1]));
            else if (range.startsWith("-"))
               httpOptions.tail(Long.parseLong(firstLast[0]));
            else
               httpOptions.startAt(Long.parseLong(firstLast[0]));
         }
      }
      return httpOptions;
   }
}