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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.chrome.browser.historyreport; |
| 6 |
| 7 import android.text.TextUtils; |
| 8 |
| 9 import org.chromium.base.CalledByNative; |
| 10 import org.chromium.base.JNINamespace; |
| 11 import org.chromium.base.Log; |
| 12 import org.chromium.base.ThreadUtils; |
| 13 import org.chromium.base.VisibleForTesting; |
| 14 |
| 15 import java.io.PrintWriter; |
| 16 import java.util.concurrent.atomic.AtomicBoolean; |
| 17 |
| 18 /** |
| 19 * Bridge class for calls between Java and C++. |
| 20 */ |
| 21 @JNINamespace("history_report") |
| 22 public class HistoryReportJniBridge implements SearchJniBridge { |
| 23 private static final String TAG = Log.makeTag("historyreport"); |
| 24 |
| 25 private long mNativeHistoryReportJniBridge; |
| 26 private DataChangeObserver mDataChangeObserver; |
| 27 private final AtomicBoolean mStarted = new AtomicBoolean(); |
| 28 |
| 29 @Override |
| 30 public boolean init(DataChangeObserver observer) { |
| 31 assert mDataChangeObserver == null || mDataChangeObserver == observer; |
| 32 if (observer == null) return false; |
| 33 if (mNativeHistoryReportJniBridge != 0) return true; |
| 34 mDataChangeObserver = observer; |
| 35 ThreadUtils.runOnUiThreadBlocking(new Runnable() { |
| 36 @Override |
| 37 public void run() { |
| 38 mNativeHistoryReportJniBridge = nativeInit(); |
| 39 } |
| 40 }); |
| 41 if (mNativeHistoryReportJniBridge == 0) { |
| 42 Log.w(TAG, "JNI bridge initialization unsuccessful."); |
| 43 return false; |
| 44 } |
| 45 |
| 46 Log.d(TAG, "JNI bridge initialization successful."); |
| 47 mStarted.set(true); |
| 48 return true; |
| 49 } |
| 50 |
| 51 private boolean isInitialized() { |
| 52 return mNativeHistoryReportJniBridge != 0 && mDataChangeObserver != null
&& mStarted.get(); |
| 53 } |
| 54 |
| 55 @VisibleForTesting |
| 56 @Override |
| 57 public boolean isStartedForTest() { |
| 58 return mStarted.get(); |
| 59 } |
| 60 |
| 61 @Override |
| 62 public DeltaFileEntry[] query(long lastSeqNo, int limit) { |
| 63 if (!isInitialized()) { |
| 64 Log.w(TAG, "query when JNI bridge not initialized"); |
| 65 return new DeltaFileEntry[0]; |
| 66 } |
| 67 Log.d(TAG, "query %d %d", lastSeqNo, limit); |
| 68 DeltaFileEntry[] result = nativeQuery(mNativeHistoryReportJniBridge, las
tSeqNo, limit); |
| 69 Log.d(TAG, "query result: %s", TextUtils.join("\n", result)); |
| 70 return result; |
| 71 } |
| 72 |
| 73 @Override |
| 74 public long trimDeltaFile(long seqNoLowerBound) { |
| 75 if (!isInitialized()) { |
| 76 Log.w(TAG, "trimDeltaFile when JNI bridge not initialized"); |
| 77 return -1; |
| 78 } |
| 79 Log.d(TAG, "trimDeltaFile %d", seqNoLowerBound); |
| 80 return nativeTrimDeltaFile(mNativeHistoryReportJniBridge, seqNoLowerBoun
d); |
| 81 } |
| 82 |
| 83 @Override |
| 84 public UsageReport[] getUsageReportsBatch(int batchSize) { |
| 85 if (!isInitialized()) { |
| 86 Log.w(TAG, "getUsageReportsBatch when JNI bridge not initialized"); |
| 87 return new UsageReport[0]; |
| 88 } |
| 89 Log.d(TAG, "getUsageReportsBatch %d", batchSize); |
| 90 return nativeGetUsageReportsBatch(mNativeHistoryReportJniBridge, batchSi
ze); |
| 91 } |
| 92 |
| 93 @Override |
| 94 public void removeUsageReports(UsageReport[] reports) { |
| 95 if (!isInitialized()) { |
| 96 Log.w(TAG, "removeUsageReports when JNI bridge not initialized"); |
| 97 return; |
| 98 } |
| 99 String[] reportIds = new String[reports.length]; |
| 100 for (int i = 0; i < reports.length; ++i) { |
| 101 reportIds[i] = reports[i].reportId; |
| 102 } |
| 103 Log.d(TAG, "removeUsageReports %s", TextUtils.join(",", reportIds)); |
| 104 nativeRemoveUsageReports(mNativeHistoryReportJniBridge, reportIds); |
| 105 } |
| 106 |
| 107 @Override |
| 108 public boolean addHistoricVisitsToUsageReportsBuffer() { |
| 109 if (!isInitialized()) return false; |
| 110 return nativeAddHistoricVisitsToUsageReportsBuffer(mNativeHistoryReportJ
niBridge); |
| 111 } |
| 112 |
| 113 @Override |
| 114 public void dump(PrintWriter writer) { |
| 115 writer.append("\nHistoryReportJniBridge [").append("started: " + mStarte
d.get()) |
| 116 .append(", initialized: " + isInitialized()); |
| 117 if (isInitialized()) { |
| 118 writer.append(", " + nativeDump(mNativeHistoryReportJniBridge)); |
| 119 } |
| 120 writer.append("]"); |
| 121 } |
| 122 |
| 123 @CalledByNative |
| 124 private static DeltaFileEntry[] createDeltaFileEntriesArray(int size) { |
| 125 return new DeltaFileEntry[size]; |
| 126 } |
| 127 |
| 128 @CalledByNative |
| 129 private static void setDeltaFileEntry(DeltaFileEntry[] entries, int position
, long seqNo, |
| 130 String type, String id, String url, int score, String title, String
indexedUrl) { |
| 131 entries[position] = new DeltaFileEntry(seqNo, type, id, url, score, titl
e, indexedUrl); |
| 132 } |
| 133 |
| 134 @CalledByNative |
| 135 private static UsageReport[] createUsageReportsArray(int size) { |
| 136 return new UsageReport[size]; |
| 137 } |
| 138 |
| 139 @CalledByNative |
| 140 private static void setUsageReport(UsageReport[] reports, int position, Stri
ng reportId, |
| 141 String pageId, long timestampMs, boolean typedVisit) { |
| 142 reports[position] = new UsageReport(reportId, pageId, timestampMs, typed
Visit); |
| 143 } |
| 144 |
| 145 @CalledByNative |
| 146 private void onDataChanged() { |
| 147 Log.d(TAG, "onDataChanged"); |
| 148 mDataChangeObserver.onDataChanged(); |
| 149 } |
| 150 |
| 151 @CalledByNative |
| 152 private void onDataCleared() { |
| 153 Log.d(TAG, "onDataCleared"); |
| 154 mDataChangeObserver.onDataCleared(); |
| 155 } |
| 156 |
| 157 @CalledByNative |
| 158 private void startReportingTask() { |
| 159 Log.d(TAG, "startReportingTask"); |
| 160 mDataChangeObserver.startReportingTask(); |
| 161 } |
| 162 |
| 163 @CalledByNative |
| 164 private void stopReportingTask() { |
| 165 Log.d(TAG, "stopReportingTask"); |
| 166 mDataChangeObserver.stopReportingTask(); |
| 167 } |
| 168 |
| 169 private native long nativeInit(); |
| 170 private native long nativeTrimDeltaFile(long nativeHistoryReportJniBridge, |
| 171 long seqNoLowerBound); |
| 172 private native DeltaFileEntry[] nativeQuery(long nativeHistoryReportJniBridg
e, long lastSeqNo, |
| 173 int limit); |
| 174 private native UsageReport[] nativeGetUsageReportsBatch(long nativeHistoryRe
portJniBridge, |
| 175 int batchSize); |
| 176 private native void nativeRemoveUsageReports(long nativeHistoryReportJniBrid
ge, |
| 177 String[] reportIds); |
| 178 private native boolean nativeAddHistoricVisitsToUsageReportsBuffer( |
| 179 long nativeHistoryReportJniBridge); |
| 180 private native String nativeDump(long nativeHistoryReportJniBridge); |
| 181 } |
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