Revert "ResearchLogger to track simple statistics"

This reverts commit 7cec911fde16775c28db3dbb16b064fc7ce69b55

Change-Id: I3eb055e03a9cf463356ebaefc7827ab65a963072

1 files changed, 0 insertions, 146 deletions

diff --git a/java/src/com/android/inputmethod/research/Statistics.java b/java/src/com/android/inputmethod/research/Statistics.java
deleted file mode 100644
index 4a2cd079c..000000000
--- a/java/src/com/android/inputmethod/research/Statistics.java
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Copyright (C) 2012 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.research;
-
-import com.android.inputmethod.keyboard.Keyboard;
-
-public class Statistics {
-    // Number of characters entered during a typing session
-    int mCharCount;
-    // Number of letter characters entered during a typing session
-    int mLetterCount;
-    // Number of number characters entered
-    int mNumberCount;
-    // Number of space characters entered
-    int mSpaceCount;
-    // Number of delete operations entered (taps on the backspace key)
-    int mDeleteKeyCount;
-    // Number of words entered during a session.
-    int mWordCount;
-    // Whether the text field was empty upon editing
-    boolean mIsEmptyUponStarting;
-    boolean mIsEmptinessStateKnown;
-
-    // Timers to count average time to enter a key, first press a delete key,
-    // between delete keys, and then to return typing after a delete key.
-    final AverageTimeCounter mKeyCounter = new AverageTimeCounter();
-    final AverageTimeCounter mBeforeDeleteKeyCounter = new AverageTimeCounter();
-    final AverageTimeCounter mDuringRepeatedDeleteKeysCounter = new AverageTimeCounter();
-    final AverageTimeCounter mAfterDeleteKeyCounter = new AverageTimeCounter();
-
-    static class AverageTimeCounter {
-        int mCount;
-        int mTotalTime;
-
-        public void reset() {
-            mCount = 0;
-            mTotalTime = 0;
-        }
-
-        public void add(long deltaTime) {
-            mCount++;
-            mTotalTime += deltaTime;
-        }
-
-        public int getAverageTime() {
-            if (mCount == 0) {
-                return 0;
-            }
-            return mTotalTime / mCount;
-        }
-    }
-
-    // To account for the interruptions when the user's attention is directed elsewhere, times
-    // longer than MIN_TYPING_INTERMISSION are not counted when estimating this statistic.
-    public static final int MIN_TYPING_INTERMISSION = 5 * 1000;  // in milliseconds
-    public static final int MIN_DELETION_INTERMISSION = 15 * 1000;  // in milliseconds
-
-    // The last time that a tap was performed
-    private long mLastTapTime;
-    // The type of the last keypress (delete key or not)
-    boolean mIsLastKeyDeleteKey;
-
-    private static final Statistics sInstance = new Statistics();
-
-    public static Statistics getInstance() {
-        return sInstance;
-    }
-
-    private Statistics() {
-        reset();
-    }
-
-    public void reset() {
-        mCharCount = 0;
-        mLetterCount = 0;
-        mNumberCount = 0;
-        mSpaceCount = 0;
-        mDeleteKeyCount = 0;
-        mWordCount = 0;
-        mIsEmptyUponStarting = true;
-        mIsEmptinessStateKnown = false;
-        mKeyCounter.reset();
-        mBeforeDeleteKeyCounter.reset();
-        mDuringRepeatedDeleteKeysCounter.reset();
-        mAfterDeleteKeyCounter.reset();
-
-        mLastTapTime = 0;
-        mIsLastKeyDeleteKey = false;
-    }
-
-    public void recordChar(int codePoint, long time) {
-        final long delta = time - mLastTapTime;
-        if (codePoint == Keyboard.CODE_DELETE) {
-            mDeleteKeyCount++;
-            if (delta < MIN_DELETION_INTERMISSION) {
-                if (mIsLastKeyDeleteKey) {
-                    mDuringRepeatedDeleteKeysCounter.add(delta);
-                } else {
-                    mBeforeDeleteKeyCounter.add(delta);
-                }
-            }
-            mIsLastKeyDeleteKey = true;
-        } else {
-            mCharCount++;
-            if (Character.isDigit(codePoint)) {
-                mNumberCount++;
-            }
-            if (Character.isLetter(codePoint)) {
-                mLetterCount++;
-            }
-            if (Character.isSpaceChar(codePoint)) {
-                mSpaceCount++;
-            }
-            if (mIsLastKeyDeleteKey && delta < MIN_DELETION_INTERMISSION) {
-                mAfterDeleteKeyCounter.add(delta);
-            } else if (!mIsLastKeyDeleteKey && delta < MIN_TYPING_INTERMISSION) {
-                mKeyCounter.add(delta);
-            }
-            mIsLastKeyDeleteKey = false;
-        }
-        mLastTapTime = time;
-    }
-
-    public void recordWordEntered() {
-        mWordCount++;
-    }
-
-    public void setIsEmptyUponStarting(final boolean isEmpty) {
-        mIsEmptyUponStarting = isEmpty;
-        mIsEmptinessStateKnown = true;
-    }
-}