查看本类的 API文档回源码主页

   /*
    * Copyright 2015 The Netty Project
    *
    * The Netty Project 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:
    *
    *   https://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.
   */
  
  /*
   * Copyright 2014 Twitter, 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
   *
   *     https://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 io.netty.handler.codec.http2;
  
  import static io.netty.handler.codec.http2.HpackUtil.equalsVariableTime;
  import static io.netty.util.internal.ObjectUtil.checkNotNull;
  
  class HpackHeaderField {
  
      // Section 4.1. Calculating Table Size
      // The additional 32 octets account for an estimated
      // overhead associated with the structure.
      static final int HEADER_ENTRY_OVERHEAD = 32;
  
      static long sizeOf(CharSequence name, CharSequence value) {
          return name.length() + value.length() + HEADER_ENTRY_OVERHEAD;
      }
  
      final CharSequence name;
      final CharSequence value;
  
      // This constructor can only be used if name and value are ISO-8859-1 encoded.
      HpackHeaderField(CharSequence name, CharSequence value) {
          this.name = checkNotNull(name, "name");
          this.value = checkNotNull(value, "value");
      }
  
      final int size() {
          return name.length() + value.length() + HEADER_ENTRY_OVERHEAD;
      }
  
      public final boolean equalsForTest(HpackHeaderField other) {
          return equalsVariableTime(name, other.name) && equalsVariableTime(value, other.value);
      }
  
      @Override
      public String toString() {
          return name + ": " + value;
      }
  }