1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package com.squareup.okhttp; 17 18/** The source of an HTTP response. */ 19public enum ResponseSource { 20 21 /** The response was returned from the local cache. */ 22 CACHE, 23 24 /** 25 * The response is available in the cache but must be validated with the 26 * network. The cache result will be used if it is still valid; otherwise 27 * the network's response will be used. 28 */ 29 CONDITIONAL_CACHE, 30 31 /** The response was returned from the network. */ 32 NETWORK, 33 34 /** 35 * The request demanded a cached response that the cache couldn't satisfy. 36 * This yields a 504 (Gateway Timeout) response as specified by 37 * http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.4. 38 */ 39 NONE; 40 41 public boolean requiresConnection() { 42 return this == CONDITIONAL_CACHE || this == NETWORK; 43 } 44 45 public boolean usesCache() { 46 return this == CACHE || this == CONDITIONAL_CACHE; 47 } 48} 49