Merge "Remove ByteBuffer prefix which wrongly suppresses a class member."
diff --git a/java/src/com/android/inputmethod/latin/LatinImeLogger.java b/java/src/com/android/inputmethod/latin/LatinImeLogger.java
new file mode 100644
index 0000000..f65720d
--- /dev/null
+++ b/java/src/com/android/inputmethod/latin/LatinImeLogger.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.inputmethod.latin;
+
+import android.content.Context;
+import android.os.DropBoxManager;
+import android.text.format.DateUtils;
+import android.util.Log;
+
+import java.util.ArrayList;
+
+public class LatinImeLogger {
+ private static final String TAG = "LatinIMELogs";
+ private static final boolean DBG = false;
+
+ // Volatile is needed for multi-cpu platform.
+ private static volatile LatinImeLogger sLatinImeLogger;
+
+ private static final long MINIMUMINTERVAL = 20 * DateUtils.SECOND_IN_MILLIS; // 20 sec
+ private static final char SEPARATER = ';';
+ private static final int ID_CLICKSUGGESTION = 0;
+ private static final int ID_AUTOSUGGESTION = 1;
+ private static final int ID_AUTOSUGGESTIONCANCELED = 2;
+ private static final int ID_INPUT = 3;
+ private static final int ID_DELETE = 4;
+
+ private ArrayList<LogEntry> mLogBuffer;
+ private final Context mContext;
+ private final DropBoxManager mDropBox;
+ private long mLastTimeActive;
+ private long mLastTimeSend;
+
+ private int mDeleteCount;
+ private int mInputCount;
+
+ private static class LogEntry {
+ public final int mTag;
+ public final long mTime;
+ public final String mData;
+ public LogEntry (long time, int tag, String data) {
+ mTag = tag;
+ mTime = time;
+ mData = data;
+ }
+ }
+
+ /**
+ * Returns the singleton of the logger.
+ * @param context
+ */
+ public static LatinImeLogger getLogger(Context context) {
+ if (sLatinImeLogger == null) {
+ synchronized (LatinImeLogger.class) {
+ if (sLatinImeLogger == null) {
+ sLatinImeLogger =new LatinImeLogger(context);
+ }
+ }
+ }
+ return sLatinImeLogger;
+ }
+
+ private LatinImeLogger(Context context) {
+ mContext = context;
+ mDropBox = (DropBoxManager) mContext.getSystemService(Context.DROPBOX_SERVICE);
+ mLastTimeSend = System.currentTimeMillis();
+ mLastTimeActive = mLastTimeSend;
+ mDeleteCount = 0;
+ mInputCount = 0;
+ }
+
+ /**
+ * Clear all logged data
+ */
+ private void reset() {
+ mDeleteCount = 0;
+ mInputCount = 0;
+ mLogBuffer.clear();
+ }
+
+ /**
+ * Check if the input string is safe as an entry or not.
+ */
+ private boolean checkStringDataSafe(String s) {
+ for (int i = 0; i < s.length(); ++i) {
+ if (!Character.isDigit(s.charAt(i))) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Add an entry
+ * @param tag
+ * @param data
+ */
+ private void addData(int tag, Object data) {
+ switch (tag) {
+ case ID_DELETE:
+ mDeleteCount += (Integer)data;
+ break;
+ case ID_INPUT:
+ mInputCount += (Integer)data;
+ break;
+ default:
+ if (data instanceof String) {
+ String dataString = (String) data;
+ if (checkStringDataSafe(dataString)) {
+ mLogBuffer.add(new LogEntry (System.currentTimeMillis(), tag, dataString));
+ } else {
+ if (DBG) {
+ Log.d(TAG, "Skipped to add an entry because data is unsafe.");
+ }
+ }
+ } else {
+ if (DBG) {
+ Log.e(TAG, "Log is invalid.");
+ }
+ }
+ break;
+ }
+ }
+
+ private static void appendWithLength(StringBuffer sb, String data) {
+ sb.append(data.length());
+ sb.append(SEPARATER);
+ sb.append(data);
+ }
+
+ private static void appendLogEntry(StringBuffer sb, String time, String tag, String data) {
+ appendWithLength(sb, time);
+ appendWithLength(sb, tag);
+ appendWithLength(sb, data);
+ }
+
+ private String createStringFromEntries(ArrayList<LogEntry> logs) {
+ StringBuffer sb = new StringBuffer();
+ String nowString = String.valueOf(System.currentTimeMillis());
+ appendLogEntry(sb, nowString, String.valueOf(ID_DELETE), String.valueOf(mDeleteCount));
+ appendLogEntry(sb, nowString, String.valueOf(ID_INPUT), String.valueOf(mInputCount));
+ for (LogEntry log: logs) {
+ appendLogEntry(sb, String.valueOf(log.mTime), String.valueOf(log.mTag), log.mData);
+ }
+ return sb.toString();
+ }
+
+ private void commit() {
+ mDropBox.addText(TAG, createStringFromEntries(mLogBuffer));
+ reset();
+ mLastTimeSend = System.currentTimeMillis();
+ }
+
+ private void sendLogToDropBox(int tag, Object s) {
+ long now = System.currentTimeMillis();
+ if (now - mLastTimeActive > MINIMUMINTERVAL) {
+ // Send a log before adding an log entry if the last data is too old.
+ commit();
+ addData(tag, s);
+ } else if (now - mLastTimeSend > MINIMUMINTERVAL) {
+ // Send a log after adding an log entry.
+ addData(tag, s);
+ commit();
+ } else {
+ addData(tag, s);
+ }
+ mLastTimeActive = now;
+ }
+
+ public void logOnClickSuggestion(String s) {
+ sendLogToDropBox(ID_CLICKSUGGESTION, s);
+ }
+
+ public void logOnAutoSuggestion(String s) {
+ sendLogToDropBox(ID_AUTOSUGGESTION, s);
+ }
+
+ public void logOnAutoSuggestionCanceled(String s) {
+ sendLogToDropBox(ID_AUTOSUGGESTIONCANCELED, s);
+ }
+
+ public void logOnDelete(int length) {
+ sendLogToDropBox(ID_DELETE, length);
+ }
+
+ public void logOnInputChar(int length) {
+ sendLogToDropBox(ID_INPUT, length);
+ }
+}