| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package org.chromium.chrome.browser.historyreport; |
| |
| import static org.chromium.base.ThreadUtils.assertOnBackgroundThread; |
| |
| import org.chromium.base.Log; |
| import org.chromium.base.ThreadUtils; |
| import org.chromium.base.VisibleForTesting; |
| import org.chromium.base.annotations.CalledByNative; |
| import org.chromium.base.annotations.JNINamespace; |
| |
| import java.io.PrintWriter; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| /** |
| * Bridge class for calls between Java and C++. |
| */ |
| @JNINamespace("history_report") |
| public class HistoryReportJniBridge implements SearchJniBridge { |
| private static final String TAG = "historyreport"; |
| |
| private long mNativeHistoryReportJniBridge; |
| private DataChangeObserver mDataChangeObserver; |
| private final AtomicBoolean mStarted = new AtomicBoolean(); |
| |
| @Override |
| public boolean init(DataChangeObserver observer) { |
| // This is called in the deferred task, so we couldn't assertOnBackgroundThread(); |
| assert mDataChangeObserver == null || mDataChangeObserver == observer; |
| if (observer == null) return false; |
| if (mNativeHistoryReportJniBridge != 0) return true; |
| mDataChangeObserver = observer; |
| ThreadUtils.runOnUiThreadBlocking(new Runnable() { |
| @Override |
| public void run() { |
| mNativeHistoryReportJniBridge = nativeInit(); |
| } |
| }); |
| if (mNativeHistoryReportJniBridge == 0) { |
| Log.w(TAG, "JNI bridge initialization unsuccessful."); |
| return false; |
| } |
| |
| Log.d(TAG, "JNI bridge initialization successful."); |
| mStarted.set(true); |
| return true; |
| } |
| |
| private boolean isInitialized() { |
| return mNativeHistoryReportJniBridge != 0 && mDataChangeObserver != null && mStarted.get(); |
| } |
| |
| @VisibleForTesting |
| @Override |
| public boolean isStartedForTest() { |
| return mStarted.get(); |
| } |
| |
| @Override |
| public DeltaFileEntry[] query(long lastSeqNo, int limit) { |
| assertOnBackgroundThread(); |
| if (!isInitialized()) { |
| Log.w(TAG, "query when JNI bridge not initialized"); |
| return new DeltaFileEntry[0]; |
| } |
| Log.d(TAG, "query %d %d", lastSeqNo, limit); |
| DeltaFileEntry[] result = nativeQuery(mNativeHistoryReportJniBridge, lastSeqNo, limit); |
| return result; |
| } |
| |
| @Override |
| public long trimDeltaFile(long seqNoLowerBound) { |
| assertOnBackgroundThread(); |
| if (!isInitialized()) { |
| Log.w(TAG, "trimDeltaFile when JNI bridge not initialized"); |
| return -1; |
| } |
| Log.d(TAG, "trimDeltaFile %d", seqNoLowerBound); |
| return nativeTrimDeltaFile(mNativeHistoryReportJniBridge, seqNoLowerBound); |
| } |
| |
| @Override |
| public UsageReport[] getUsageReportsBatch(int batchSize) { |
| assertOnBackgroundThread(); |
| if (!isInitialized()) { |
| Log.w(TAG, "getUsageReportsBatch when JNI bridge not initialized"); |
| return new UsageReport[0]; |
| } |
| Log.d(TAG, "getUsageReportsBatch %d", batchSize); |
| return nativeGetUsageReportsBatch(mNativeHistoryReportJniBridge, batchSize); |
| } |
| |
| @Override |
| public void removeUsageReports(UsageReport[] reports) { |
| assertOnBackgroundThread(); |
| if (!isInitialized()) { |
| Log.w(TAG, "removeUsageReports when JNI bridge not initialized"); |
| return; |
| } |
| String[] reportIds = new String[reports.length]; |
| for (int i = 0; i < reports.length; ++i) { |
| reportIds[i] = reports[i].reportId; |
| } |
| nativeRemoveUsageReports(mNativeHistoryReportJniBridge, reportIds); |
| } |
| |
| @Override |
| public void clearUsageReports() { |
| assertOnBackgroundThread(); |
| if (!isInitialized()) { |
| Log.w(TAG, "clearUsageReports when JNI bridge not initialized"); |
| return; |
| } |
| nativeClearUsageReports(mNativeHistoryReportJniBridge); |
| } |
| |
| @Override |
| public boolean addHistoricVisitsToUsageReportsBuffer() { |
| assertOnBackgroundThread(); |
| if (!isInitialized()) { |
| Log.w(TAG, "addHistoricVisitsToUsageReportsBuffer when JNI bridge not initialized"); |
| return false; |
| } |
| return nativeAddHistoricVisitsToUsageReportsBuffer(mNativeHistoryReportJniBridge); |
| } |
| |
| @Override |
| public void dump(PrintWriter writer) { |
| writer.append("\nHistoryReportJniBridge [").append("started: " + mStarted.get()) |
| .append(", initialized: " + isInitialized()); |
| if (isInitialized()) { |
| writer.append(", " + nativeDump(mNativeHistoryReportJniBridge)); |
| } |
| writer.append("]"); |
| } |
| |
| @CalledByNative |
| private static DeltaFileEntry[] createDeltaFileEntriesArray(int size) { |
| return new DeltaFileEntry[size]; |
| } |
| |
| @CalledByNative |
| private static void setDeltaFileEntry(DeltaFileEntry[] entries, int position, long seqNo, |
| String type, String id, String url, int score, String title, String indexedUrl) { |
| entries[position] = new DeltaFileEntry(seqNo, type, id, url, score, title, indexedUrl); |
| } |
| |
| @CalledByNative |
| private static UsageReport[] createUsageReportsArray(int size) { |
| return new UsageReport[size]; |
| } |
| |
| @CalledByNative |
| private static void setUsageReport(UsageReport[] reports, int position, String reportId, |
| String pageId, long timestampMs, boolean typedVisit) { |
| reports[position] = new UsageReport(reportId, pageId, timestampMs, typedVisit); |
| } |
| |
| @CalledByNative |
| private void onDataChanged() { |
| Log.d(TAG, "onDataChanged"); |
| mDataChangeObserver.onDataChanged(); |
| } |
| |
| @CalledByNative |
| private void onDataCleared() { |
| Log.d(TAG, "onDataCleared"); |
| mDataChangeObserver.onDataCleared(); |
| } |
| |
| @CalledByNative |
| private void startReportingTask() { |
| Log.d(TAG, "startReportingTask"); |
| mDataChangeObserver.startReportingTask(); |
| } |
| |
| @CalledByNative |
| private void stopReportingTask() { |
| Log.d(TAG, "stopReportingTask"); |
| mDataChangeObserver.stopReportingTask(); |
| } |
| |
| private native long nativeInit(); |
| private native long nativeTrimDeltaFile(long nativeHistoryReportJniBridge, |
| long seqNoLowerBound); |
| private native DeltaFileEntry[] nativeQuery(long nativeHistoryReportJniBridge, long lastSeqNo, |
| int limit); |
| private native UsageReport[] nativeGetUsageReportsBatch(long nativeHistoryReportJniBridge, |
| int batchSize); |
| private native void nativeRemoveUsageReports(long nativeHistoryReportJniBridge, |
| String[] reportIds); |
| private native void nativeClearUsageReports(long nativeHistoryReportJniBridge); |
| private native boolean nativeAddHistoricVisitsToUsageReportsBuffer( |
| long nativeHistoryReportJniBridge); |
| private native String nativeDump(long nativeHistoryReportJniBridge); |
| } |