1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* 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.latin.CollectionUtils;
import java.util.List;
/**
* A group of log statements related to each other.
*
* A LogUnit is collection of LogStatements, each of which is generated by at a particular point
* in the code. (There is no LogStatement class; the data is stored across the instance variables
* here.) A single LogUnit's statements can correspond to all the calls made while in the same
* composing region, or all the calls between committing the last composing region, and the first
* character of the next composing region.
*
* Individual statements in a log may be marked as potentially private. If so, then they are only
* published to a ResearchLog if the ResearchLogger determines that publishing the entire LogUnit
* will not violate the user's privacy. Checks for this may include whether other LogUnits have
* been published recently, or whether the LogUnit contains numbers, etc.
*/
/* package */ class LogUnit {
private final List<String[]> mKeysList;
private final List<Object[]> mValuesList;
// Assume that mTimeList is sorted in increasing order. Do not insert null values into
// mTimeList.
private final List<Long> mTimeList;
private final List<Boolean> mIsPotentiallyPrivate;
private String mWord;
private boolean mMayContainDigit;
public LogUnit() {
mKeysList = CollectionUtils.newArrayList();
mValuesList = CollectionUtils.newArrayList();
mTimeList = CollectionUtils.newArrayList();
mIsPotentiallyPrivate = CollectionUtils.newArrayList();
}
private LogUnit(final List<String[]> keysList, final List<Object[]> valuesList,
final List<Long> timeList, final List<Boolean> isPotentiallyPrivate) {
mKeysList = keysList;
mValuesList = valuesList;
mTimeList = timeList;
mIsPotentiallyPrivate = isPotentiallyPrivate;
}
/**
* Adds a new log statement. The time parameter in successive calls to this method must be
* monotonically increasing, or splitByTime() will not work.
*/
public void addLogStatement(final String[] keys, final Object[] values,
final long time, final boolean isPotentiallyPrivate) {
mKeysList.add(keys);
mValuesList.add(values);
mTimeList.add(time);
mIsPotentiallyPrivate.add(isPotentiallyPrivate);
}
public void publishTo(final ResearchLog researchLog, final boolean isIncludingPrivateData) {
final int size = mKeysList.size();
for (int i = 0; i < size; i++) {
if (!mIsPotentiallyPrivate.get(i) || isIncludingPrivateData) {
researchLog.outputEvent(mKeysList.get(i), mValuesList.get(i), mTimeList.get(i));
}
}
}
public void setWord(String word) {
mWord = word;
}
public String getWord() {
return mWord;
}
public boolean hasWord() {
return mWord != null;
}
public void setMayContainDigit() {
mMayContainDigit = true;
}
public boolean mayContainDigit() {
return mMayContainDigit;
}
public boolean isEmpty() {
return mKeysList.isEmpty();
}
/**
* Split this logUnit, with all events before maxTime staying in the current logUnit, and all
* events after maxTime going into a new LogUnit that is returned.
*/
public LogUnit splitByTime(final long maxTime) {
// Assume that mTimeList is in sorted order.
final int length = mTimeList.size();
for (int index = 0; index < length; index++) {
if (mTimeList.get(index) >= maxTime) {
final LogUnit newLogUnit = new LogUnit(
mKeysList.subList(index, length),
mValuesList.subList(index, length),
mTimeList.subList(index, length),
mIsPotentiallyPrivate.subList(index, length));
newLogUnit.mWord = null;
newLogUnit.mMayContainDigit = mMayContainDigit;
return newLogUnit;
}
}
return new LogUnit();
}
}
|
