com.google.appengine.tools.cloudstorage.oauth.OAuthURLFetchService Maven / Gradle / Ivy

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/*
 * Copyright 2012 Google Inc. All Rights Reserved.
 *
 * 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 com.google.appengine.tools.cloudstorage.oauth;

import com.google.appengine.api.urlfetch.HTTPRequest;
import com.google.appengine.api.urlfetch.HTTPResponse;
import com.google.appengine.tools.cloudstorage.RetryHelperException;

import java.io.IOException;
import java.util.concurrent.Future;

/**
 * Like {@link com.google.appengine.api.urlfetch.URLFetchService}, but adds
 * OAuth headers.  Implementations define how credentials are obtained.
 *
 * It is unspecified what happens if OAuth headers are already present.
 */
interface OAuthURLFetchService {

  HTTPResponse fetch(HTTPRequest req) throws IOException, RetryHelperException;

  Future fetchAsync(HTTPRequest request);
}