/** * Initialize the source for this response. It may be corrected later if the request headers * forbids network use. */ private void initResponseSource() throws IOException { responseSource = ResponseSource.NETWORK; if (!policy.getUseCaches()) return; OkResponseCache responseCache = client.getOkResponseCache(); if (responseCache == null) return; CacheResponse candidate = responseCache.get(uri, method, requestHeaders.getHeaders().toMultimap(false)); if (candidate == null) return; Map<String, List<String>> responseHeadersMap = candidate.getHeaders(); cachedResponseBody = candidate.getBody(); if (!acceptCacheResponseType(candidate) || responseHeadersMap == null || cachedResponseBody == null) { Util.closeQuietly(cachedResponseBody); return; } RawHeaders rawResponseHeaders = RawHeaders.fromMultimap(responseHeadersMap, true); cachedResponseHeaders = new ResponseHeaders(uri, rawResponseHeaders); long now = System.currentTimeMillis(); this.responseSource = cachedResponseHeaders.chooseResponseSource(now, requestHeaders); if (responseSource == ResponseSource.CACHE) { this.cacheResponse = candidate; setResponse(cachedResponseHeaders, cachedResponseBody); } else if (responseSource == ResponseSource.CONDITIONAL_CACHE) { this.cacheResponse = candidate; } else if (responseSource == ResponseSource.NETWORK) { Util.closeQuietly(cachedResponseBody); } else { throw new AssertionError(); } }