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jclouds components to access OAuth

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/*
 * 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.oauth.v2.handlers;

import org.jclouds.http.HttpRequest;
import org.jclouds.oauth.v2.domain.TokenRequest;
import org.jclouds.oauth.v2.domain.TokenRequestFormat;
import org.jclouds.rest.Binder;

import javax.inject.Inject;
import javax.inject.Singleton;

/**
 * Generic implementation of a token binder. Uses a provided {@link TokenRequestFormat} to actually bind tokens to
 * requests.
 *
 * @author David Alves
 */
@Singleton
public class OAuthTokenBinder implements Binder {

   private final TokenRequestFormat tokenRequestFormat;

   @Inject
   OAuthTokenBinder(TokenRequestFormat tokenRequestFormat) {
      this.tokenRequestFormat = tokenRequestFormat;
   }

   @Override
   public  R bindToRequest(R request, Object input) {
      return tokenRequestFormat.formatRequest(request, (TokenRequest) input);
   }
}