001package votorola.g.net; // Copyright 2012, Michael Allan. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Votorola Software"), to deal in the Votorola Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Votorola Software, and to permit persons to whom the Votorola Software is furnished to do so, subject to the following conditions: The preceding copyright notice and this permission notice shall be included in all copies or substantial portions of the Votorola Software. THE VOTOROLA SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE VOTOROLA SOFTWARE OR THE USE OR OTHER DEALINGS IN THE VOTOROLA SOFTWARE. 002 003import java.net.*; 004import java.util.*; 005import votorola.g.lang.*; 006 007 008/** CookieHandler utilities. 009 */ 010public @ThreadSafe final class CookieHandlerX 011{ 012 013 private CookieHandlerX() {} 014 015 016 017 /** Constructs a Cookie header value for a request. 018 * 019 * @param requestHeaders a map of all other cookie-related request headers. It 020 * will not be modified. 021 */ 022 public static String newRequestHeader( final URI requestURI, 023 final Map<String, List<String>> requestHeaders, final CookieHandler handler ) 024 throws java.io.IOException 025 { 026 final Map<String, List<String>> cookieRequestHeaders = handler.get( requestURI, 027 requestHeaders ); 028 final List<String> pairs = cookieRequestHeaders.get( "Cookie" ); 029 // as opposed to Cookie2, which I suppose are version 2 cookies, or something 030 final int pN = pairs.size(); 031 if( pN == 0 ) return null; 032 033 final StringBuilder b = new StringBuilder( pN * 32/*init capacity, guess*/ ); 034 final Iterator<String> p = pairs.iterator(); 035 for( ;; ) 036 { 037 // Concatenate all key/value pairs as a single header value separated by 038 // semicolons. Apparently multiple Cookie headers each with a single 039 // key/value pair are (unlike Set-Cookie) non-standard. 040 final String pair = p.next(); 041 b.append( pair ); // foo=bar 042 if( !p.hasNext() ) break; 043 044 b.append( ';' ); // foo=bar; 045 } 046 return b.toString(); 047 } 048 049 050 051}