org.jclouds.cloudstack.binders.BindIdListToCommaDelimitedQueryParam Maven / Gradle / Ivy

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/**
 * 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.cloudstack.binders;

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

import javax.inject.Singleton;

import org.jclouds.http.HttpRequest;
import org.jclouds.rest.Binder;

import com.google.common.base.Joiner;
import com.google.common.collect.Iterables;

/**
 * @author Richard Downer
 */
@Singleton
public class BindIdListToCommaDelimitedQueryParam implements Binder {

   @SuppressWarnings("unchecked")
   @Override
   public  R bindToRequest(R request, Object input) {
      checkArgument(input instanceof Iterable, "this binder is only valid for Iterables!");
      Iterable numbers = (Iterable) checkNotNull(input, "list of Longs");
      checkArgument(Iterables.size(numbers) > 0, "you must specify at least one element");
      return (R) request.toBuilder().replaceQueryParam("ids", Joiner.on(',').join(numbers)).build();
   }
}