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/**
 * Copyright 2009 Google Inc.
 *
 * 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 org.openid4java.util;

import java.io.IOException;
import java.util.Map;

public abstract class AbstractHttpFetcher implements HttpFetcher {

  /**
   * Default set of HTTP request options to be used when placing HTTP
   * requests, if a custom one was not specified.
   */
  private HttpRequestOptions _defaultOptions = new HttpRequestOptions();

  /* (non-Javadoc)
   * @see org.openid4java.util.HttpFetcher#get(java.lang.String)
   */
  public HttpResponse get(String url) throws IOException
  {
      return get(url, _defaultOptions);
  }

  public abstract HttpResponse get(String url, HttpRequestOptions requestOptions) throws IOException;

  /* (non-Javadoc)
   * @see org.openid4java.util.HttpFetcher#getDefaultRequestOptions()
   */
  public HttpRequestOptions getDefaultRequestOptions()
  {
      return _defaultOptions;
  }

  /* (non-Javadoc)
   * @see org.openid4java.util.HttpFetcher#getRequestOptions()
   */
  public HttpRequestOptions getRequestOptions()
  {
      return new HttpRequestOptions(_defaultOptions);
  }

  /* (non-Javadoc)
   * @see org.openid4java.util.HttpFetcher#head(java.lang.String)
   */
  public HttpResponse head(String url) throws IOException
  {
      return head(url, _defaultOptions);
  }

  public abstract HttpResponse post(String url, Map parameters,
      HttpRequestOptions requestOptions) throws IOException;

  /* (non-Javadoc)
   * @see org.openid4java.util.HttpFetcher#head(java.lang.String)
   */
  public HttpResponse post(String url, Map parameters) throws IOException
  {
      return post(url, parameters, _defaultOptions);
  }

  public abstract HttpResponse head(String url, HttpRequestOptions requestOptions) throws IOException;


  /* (non-Javadoc)
   * @see org.openid4java.util.HttpFetcher#setDefaultRequestOptions(org.openid4java.util.HttpRequestOptions)
   */
  public void setDefaultRequestOptions(HttpRequestOptions defaultOptions)
  {
      this._defaultOptions = defaultOptions;
  }
}