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1 // Copyright 2014 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 android.content.Context; | |
8 import android.os.ConditionVariable; | |
9 import android.os.Process; | |
10 import android.util.Log; | |
11 | |
12 import org.chromium.base.CalledByNative; | |
13 import org.chromium.base.JNINamespace; | |
14 | |
15 /** | |
16 * Provides context for the native HTTP operations. | |
17 */ | |
18 @JNINamespace("cronet") | |
19 public class UrlRequestContext { | |
20 private static final int LOG_NONE = 3; // LOG(FATAL), no VLOG. | |
21 private static final int LOG_DEBUG = -1; // LOG(FATAL...INFO), VLOG(1) | |
22 private static final int LOG_VERBOSE = -2; // LOG(FATAL...INFO), VLOG(2) | |
23 private static final String LOG_TAG = "ChromiumNetwork"; | |
24 | |
25 /** | |
26 * Native adapter object, owned by UrlRequestContext. | |
27 */ | |
28 private long mUrlRequestContextAdapter; | |
29 | |
30 private final ConditionVariable mStarted = new ConditionVariable(); | |
31 | |
32 /** | |
33 * Constructor. | |
34 * | |
35 */ | |
36 protected UrlRequestContext(Context context, String userAgent, | |
37 String config) { | |
38 mUrlRequestContextAdapter = nativeCreateRequestContextAdapter(context, | |
39 userAgent, getLoggingLevel(), config); | |
40 if (mUrlRequestContextAdapter == 0) | |
41 throw new NullPointerException("Context Adapter creation failed"); | |
42 | |
43 // TODO(mef): Revisit the need of block here. | |
44 mStarted.block(2000); | |
45 } | |
46 | |
47 /** | |
48 * Returns the version of this network stack formatted as N.N.N.N/X where | |
49 * N.N.N.N is the version of Chromium and X is the revision number. | |
50 */ | |
51 public static String getVersion() { | |
52 return Version.getVersion(); | |
53 } | |
54 | |
55 /** | |
56 * Initializes statistics recorder. | |
57 */ | |
58 public void initializeStatistics() { | |
59 nativeInitializeStatistics(); | |
60 } | |
61 | |
62 /** | |
63 * Gets current statistics recorded since |initializeStatistics| with | |
64 * |filter| as a substring as JSON text (an empty |filter| will include all | |
65 * registered histograms). | |
66 */ | |
67 public String getStatisticsJSON(String filter) { | |
68 return nativeGetStatisticsJSON(filter); | |
69 } | |
70 | |
71 /** | |
72 * Starts NetLog logging to a file named |fileName| in the | |
73 * application temporary directory. |fileName| must not be empty. Log level | |
74 * is LOG_ALL_BUT_BYTES. If the file exists it is truncated before starting. | |
75 * If actively logging the call is ignored. | |
76 */ | |
77 public void startNetLogToFile(String fileName) { | |
78 nativeStartNetLogToFile(mUrlRequestContextAdapter, fileName); | |
79 } | |
80 | |
81 /** | |
82 * Stops NetLog logging and flushes file to disk. If a logging session is | |
83 * not in progress this call is ignored. | |
84 */ | |
85 public void stopNetLog() { | |
86 nativeStopNetLog(mUrlRequestContextAdapter); | |
87 } | |
88 | |
89 @CalledByNative | |
90 private void initNetworkThread() { | |
91 Thread.currentThread().setName("ChromiumNet"); | |
92 Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); | |
93 mStarted.open(); | |
94 } | |
95 | |
96 @Override | |
97 protected void finalize() throws Throwable { | |
98 nativeReleaseRequestContextAdapter(mUrlRequestContextAdapter); | |
99 super.finalize(); | |
100 } | |
101 | |
102 protected long getUrlRequestContextAdapter() { | |
103 return mUrlRequestContextAdapter; | |
104 } | |
105 | |
106 /** | |
107 * @return loggingLevel see {@link #LOG_NONE}, {@link #LOG_DEBUG} and | |
108 * {@link #LOG_VERBOSE}. | |
109 */ | |
110 private int getLoggingLevel() { | |
111 int loggingLevel; | |
112 if (Log.isLoggable(LOG_TAG, Log.VERBOSE)) { | |
113 loggingLevel = LOG_VERBOSE; | |
114 } else if (Log.isLoggable(LOG_TAG, Log.DEBUG)) { | |
115 loggingLevel = LOG_DEBUG; | |
116 } else { | |
117 loggingLevel = LOG_NONE; | |
118 } | |
119 return loggingLevel; | |
120 } | |
121 | |
122 // Returns an instance URLRequestContextAdapter to be stored in | |
123 // mUrlRequestContextAdapter. | |
124 private native long nativeCreateRequestContextAdapter(Context context, | |
125 String userAgent, int loggingLevel, String config); | |
126 | |
127 private native void nativeReleaseRequestContextAdapter( | |
128 long urlRequestContextAdapter); | |
129 | |
130 private native void nativeInitializeStatistics(); | |
131 | |
132 private native String nativeGetStatisticsJSON(String filter); | |
133 | |
134 private native void nativeStartNetLogToFile(long urlRequestContextAdapter, | |
135 String fileName); | |
136 | |
137 private native void nativeStopNetLog(long urlRequestContextAdapter); | |
138 } | |
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