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// Copyright 2015-2019 SWIM.AI 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 swim.http;

import swim.codec.Encoder;
import swim.codec.OutputBuffer;
import swim.collections.FingerTrieSeq;

public abstract class HttpEntity {
  public abstract boolean isDefined();

  public abstract T get();

  public abstract long length();

  public abstract MediaType mediaType();

  public abstract FingerTrieSeq transferCodings();

  public abstract FingerTrieSeq headers();

  public abstract  Encoder> httpEncoder(HttpMessage message, HttpWriter http);

  public  Encoder> httpEncoder(HttpMessage message) {
    return httpEncoder(message, Http.standardWriter());
  }

  public abstract  Encoder> encodeHttp(HttpMessage message,
                                                              OutputBuffer output, HttpWriter http);

  public  Encoder> encodeHttp(HttpMessage message, OutputBuffer output) {
    return encodeHttp(message, output, Http.standardWriter());
  }

  private static HttpEntity