apis/openstack-swift/src/main/java/org/jclouds/openstack/swift/v1/blobstore/functions/ToListContainerOptions.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.openstack.swift.v1.blobstore.functions;

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

import org.jclouds.blobstore.options.ListContainerOptions;

import com.google.common.base.Function;

public class ToListContainerOptions implements
      Function<ListContainerOptions, org.jclouds.openstack.swift.v1.options.ListContainerOptions> {

   @Override
   public org.jclouds.openstack.swift.v1.options.ListContainerOptions apply(ListContainerOptions from) {
      checkNotNull(from, "set options to instance NONE instead of passing null");
      org.jclouds.openstack.swift.v1.options.ListContainerOptions options = new org.jclouds.openstack.swift.v1.options.ListContainerOptions();
      if ((from.getDir() == null) && (from.isRecursive())) {
         options.prefix("");
      }
      if ((from.getDir() == null) && (!from.isRecursive())) {
         options.path("");
      }
      if ((from.getDir() != null) && (from.isRecursive())) {
         options.prefix(from.getDir().endsWith("/") ? from.getDir() : from.getDir() + "/");
      }
      if ((from.getDir() != null) && (!from.isRecursive())) {
         options.path(from.getDir());
      }
      if (from.getMarker() != null) {
         options.marker(from.getMarker());
      }
      if (from.getMaxResults() != null) {
         options.limit(from.getMaxResults());
      }
      return options;
   }
}