| /** |
| * 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.http; |
| |
| import java.util.concurrent.ExecutionException; |
| |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| /** |
| * Command that utilizes RESTFul apis and extracts <code>T</code> from the HttpResponse. |
| * |
| * @author Adrian Cole |
| */ |
| public interface TransformingHttpCommand<T> extends HttpCommand { |
| |
| /** |
| * invoke and transform the response {@code <R>} into value type {@code <T>} |
| * |
| * @return future containing the expected value |
| * |
| * @throws ExecutionException |
| * if there is a fatal error preventing the command from invoking |
| */ |
| ListenableFuture<T> execute() throws ExecutionException; |
| } |