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      1 package com.squareup.okhttp.internal.spdy;
      2 
      3 import okio.ByteString;
      4 
      5 /** HTTP header: the name is an ASCII string, but the value can be UTF-8. */
      6 public final class Header {
      7   // Special header names defined in the SPDY and HTTP/2 specs.
      8   public static final ByteString RESPONSE_STATUS = ByteString.encodeUtf8(":status");
      9   public static final ByteString TARGET_METHOD = ByteString.encodeUtf8(":method");
     10   public static final ByteString TARGET_PATH = ByteString.encodeUtf8(":path");
     11   public static final ByteString TARGET_SCHEME = ByteString.encodeUtf8(":scheme");
     12   public static final ByteString TARGET_AUTHORITY = ByteString.encodeUtf8(":authority"); // http/2
     13   public static final ByteString TARGET_HOST = ByteString.encodeUtf8(":host"); // spdy/3
     14   public static final ByteString VERSION = ByteString.encodeUtf8(":version"); // spdy/3
     15 
     16   /** Name in case-insensitive ASCII encoding. */
     17   public final ByteString name;
     18   /** Value in UTF-8 encoding. */
     19   public final ByteString value;
     20   final int hpackSize;
     21 
     22   // TODO: search for toLowerCase and consider moving logic here.
     23   public Header(String name, String value) {
     24     this(ByteString.encodeUtf8(name), ByteString.encodeUtf8(value));
     25   }
     26 
     27   public Header(ByteString name, String value) {
     28     this(name, ByteString.encodeUtf8(value));
     29   }
     30 
     31   public Header(ByteString name, ByteString value) {
     32     this.name = name;
     33     this.value = value;
     34     this.hpackSize = 32 + name.size() + value.size();
     35   }
     36 
     37   @Override public boolean equals(Object other) {
     38     if (other instanceof Header) {
     39       Header that = (Header) other;
     40       return this.name.equals(that.name)
     41           && this.value.equals(that.value);
     42     }
     43     return false;
     44   }
     45 
     46   @Override public int hashCode() {
     47     int result = 17;
     48     result = 31 * result + name.hashCode();
     49     result = 31 * result + value.hashCode();
     50     return result;
     51   }
     52 
     53   @Override public String toString() {
     54     return String.format("%s: %s", name.utf8(), value.utf8());
     55   }
     56 }
     57