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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 package org.chromium.net; | |
| 6 | |
| 7 import static android.os.Process.THREAD_PRIORITY_BACKGROUND; | |
| 8 import static android.os.Process.THREAD_PRIORITY_MORE_FAVORABLE; | |
| 9 | |
| 10 import java.io.IOException; | |
| 11 import java.net.Proxy; | |
| 12 import java.net.URL; | |
| 13 import java.net.URLConnection; | |
| 14 import java.net.URLStreamHandler; | |
| 15 import java.net.URLStreamHandlerFactory; | |
| 16 import java.util.Collection; | |
| 17 import java.util.List; | |
| 18 import java.util.Map; | |
| 19 import java.util.concurrent.Executor; | |
| 20 import java.util.concurrent.ExecutorService; | |
| 21 import java.util.concurrent.Executors; | |
| 22 import java.util.concurrent.ThreadFactory; | |
| 23 | |
| 24 /** | |
| 25 * {@link java.net.HttpURLConnection} backed CronetEngine. | |
| 26 * | |
| 27 * <p>Does not support netlogs, transferred data measurement, bidistream, cache,
or priority. | |
| 28 */ | |
| 29 final class JavaCronetEngine extends CronetEngine { | |
| 30 private final String mUserAgent; | |
| 31 | |
| 32 private final ExecutorService mExecutorService = | |
| 33 Executors.newCachedThreadPool(new ThreadFactory() { | |
| 34 @Override | |
| 35 public Thread newThread(final Runnable r) { | |
| 36 return Executors.defaultThreadFactory().newThread(new Runnab
le() { | |
| 37 @Override | |
| 38 public void run() { | |
| 39 Thread.currentThread().setName("JavaCronetEngine"); | |
| 40 // On android, all background threads (and all threa
ds that are part | |
| 41 // of background processes) are put in a cgroup that
is allowed to | |
| 42 // consume up to 5% of CPU - these worker threads sp
end the vast | |
| 43 // majority of their time waiting on I/O, so making
them contend with | |
| 44 // background applications for a slice of CPU doesn'
t make much sense. | |
| 45 // We want to hurry up and get idle. | |
| 46 android.os.Process.setThreadPriority( | |
| 47 THREAD_PRIORITY_BACKGROUND + THREAD_PRIORITY
_MORE_FAVORABLE); | |
| 48 r.run(); | |
| 49 } | |
| 50 }); | |
| 51 } | |
| 52 }); | |
| 53 | |
| 54 JavaCronetEngine(String userAgent) { | |
| 55 this.mUserAgent = userAgent; | |
| 56 } | |
| 57 | |
| 58 @Override | |
| 59 public UrlRequest createRequest(String url, UrlRequest.Callback callback, Ex
ecutor executor, | |
| 60 int priority, Collection<Object> connectionAnnotations, boolean disa
bleCache, | |
| 61 boolean disableConnectionMigration, boolean allowDirectExecutor) { | |
| 62 return new JavaUrlRequest( | |
| 63 callback, mExecutorService, executor, url, mUserAgent, allowDire
ctExecutor); | |
| 64 } | |
| 65 | |
| 66 @Override | |
| 67 public BidirectionalStream createBidirectionalStream(String url, | |
| 68 BidirectionalStream.Callback callback, Executor executor, String htt
pMethod, | |
| 69 List<Map.Entry<String, String>> requestHeaders, | |
| 70 @BidirectionalStream.Builder.StreamPriority int priority, | |
| 71 boolean delayRequestHeadersUntilFirstFlush, Collection<Object> conne
ctionAnnotations) { | |
| 72 throw new UnsupportedOperationException( | |
| 73 "Can't create a bidi stream - httpurlconnection doesn't have tho
se APIs"); | |
| 74 } | |
| 75 | |
| 76 @Override | |
| 77 public boolean isEnabled() { | |
| 78 return true; | |
| 79 } | |
| 80 | |
| 81 @Override | |
| 82 public String getVersionString() { | |
| 83 return "CronetHttpURLConnection/" + ApiVersion.getVersion(); | |
| 84 } | |
| 85 | |
| 86 @Override | |
| 87 public void shutdown() { | |
| 88 mExecutorService.shutdown(); | |
| 89 } | |
| 90 | |
| 91 @Override | |
| 92 public void startNetLogToFile(String fileName, boolean logAll) {} | |
| 93 | |
| 94 @Override | |
| 95 public void startNetLogToDisk(String dirPath, boolean logAll, int maxSize) {
} | |
| 96 | |
| 97 @Override | |
| 98 public void stopNetLog() {} | |
| 99 | |
| 100 @Override | |
| 101 public String getCertVerifierData(long timeout) { | |
| 102 return ""; | |
| 103 } | |
| 104 | |
| 105 @Override | |
| 106 public byte[] getGlobalMetricsDeltas() { | |
| 107 return new byte[0]; | |
| 108 } | |
| 109 | |
| 110 @Override | |
| 111 public int getEffectiveConnectionType() { | |
| 112 return EffectiveConnectionType.TYPE_UNKNOWN; | |
| 113 } | |
| 114 | |
| 115 @Override | |
| 116 public int getHttpRttMs() { | |
| 117 return RttThroughputValues.INVALID_RTT_THROUGHPUT; | |
| 118 } | |
| 119 | |
| 120 @Override | |
| 121 public int getTransportRttMs() { | |
| 122 return RttThroughputValues.INVALID_RTT_THROUGHPUT; | |
| 123 } | |
| 124 | |
| 125 @Override | |
| 126 public int getDownstreamThroughputKbps() { | |
| 127 return RttThroughputValues.INVALID_RTT_THROUGHPUT; | |
| 128 } | |
| 129 | |
| 130 @Override | |
| 131 public void configureNetworkQualityEstimatorForTesting( | |
| 132 boolean useLocalHostRequests, boolean useSmallerResponses) {} | |
| 133 | |
| 134 @Override | |
| 135 public void addRttListener(NetworkQualityRttListener listener) {} | |
| 136 | |
| 137 @Override | |
| 138 public void removeRttListener(NetworkQualityRttListener listener) {} | |
| 139 | |
| 140 @Override | |
| 141 public void addThroughputListener(NetworkQualityThroughputListener listener)
{} | |
| 142 | |
| 143 @Override | |
| 144 public void removeThroughputListener(NetworkQualityThroughputListener listen
er) {} | |
| 145 | |
| 146 @Override | |
| 147 public void addRequestFinishedListener(RequestFinishedInfo.Listener listener
) {} | |
| 148 | |
| 149 @Override | |
| 150 public void removeRequestFinishedListener(RequestFinishedInfo.Listener liste
ner) {} | |
| 151 | |
| 152 @Override | |
| 153 public URLConnection openConnection(URL url) throws IOException { | |
| 154 return url.openConnection(); | |
| 155 } | |
| 156 | |
| 157 @Override | |
| 158 public URLConnection openConnection(URL url, Proxy proxy) throws IOException
{ | |
| 159 return url.openConnection(proxy); | |
| 160 } | |
| 161 | |
| 162 @Override | |
| 163 public URLStreamHandlerFactory createURLStreamHandlerFactory() { | |
| 164 // Returning null causes this factory to pass though, which ends up usin
g the platform's | |
| 165 // implementation. | |
| 166 return new URLStreamHandlerFactory() { | |
| 167 @Override | |
| 168 public URLStreamHandler createURLStreamHandler(String protocol) { | |
| 169 return null; | |
| 170 } | |
| 171 }; | |
| 172 } | |
| 173 } | |
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Chromium Code Reviews
Issue 2339223002:
Cronet API Refactoring (Closed)
