content: /*
   * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package java.net;
  
  import java.io.InputStream;
  import java.util.Map;
  import java.util.List;
  import java.io.IOException;
  
  /**
   * Represent channels for retrieving resources from the
   * ResponseCache. Instances of such a class provide an
   * InputStream that returns the entity body, and also a
   * getHeaders() method which returns the associated response headers.
   *
   * @author Yingxian Wang
   * @since 1.5
   */
  public abstract class CacheResponse {
  
      /**
       * Returns the response headers as a Map.
       *
       * @return An immutable Map from response header field names to
       *         lists of field values. The status line has null as its
       *         field name.
       * @throws IOException if an I/O error occurs
       *            while getting the response headers
       */
      public abstract Map<String, List<String>> getHeaders() throws IOException;
  
      /**
       * Returns the response body as an InputStream.
       *
       * @return an InputStream from which the response body can
       *         be accessed
       * @throws IOException if an I/O error occurs while
       *         getting the response body
       */
      public abstract InputStream getBody() throws IOException;
  }
  