/*
* Copyright (C) 2008 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.commands.monkey;
import android.os.SystemClock;
import android.view.KeyEvent;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.LinkedList;
import java.util.StringTokenizer;
/**
* monkey event queue. It takes a script to produce events
*
* sample script format:
* type= raw events
* count= 10
* speed= 1.0
* captureDispatchPointer(5109520,5109520,0,230.75429,458.1814,0.20784314,
* 0.06666667,0,0.0,0.0,65539,0)
* captureDispatchKey(5113146,5113146,0,20,0,0,0,0)
* captureDispatchFlip(true)
* ...
*/
public class MonkeySourceScript implements MonkeyEventSource{
private int mEventCountInScript = 0; //total number of events in the file
private int mVerbose = 0;
private double mSpeed = 1.0;
private String mScriptFileName;
private LinkedList<MonkeyEvent> mQ = new LinkedList<MonkeyEvent>();
private static final String HEADER_TYPE = "type=";
private static final String HEADER_COUNT = "count=";
private static final String HEADER_SPEED = "speed=";
private long mLastRecordedDownTimeKey = 0;
private long mLastRecordedDownTimeMotion = 0;
private long mLastExportDownTimeKey = 0;
private long mLastExportDownTimeMotion = 0;
private long mLastExportEventTime = -1;
private long mLastRecordedEventTime = -1;
private static final boolean THIS_DEBUG = false;
// a parameter that compensates the difference of real elapsed time and
// time in theory
private static final long SLEEP_COMPENSATE_DIFF = 16;
// maximum number of events that we read at one time
private static final int MAX_ONE_TIME_READS = 100;
// number of additional events added to the script
// add HOME_KEY down and up events to make start UI consistent in each round
private static final int POLICY_ADDITIONAL_EVENT_COUNT = 2;
// event key word in the capture log
private static final String EVENT_KEYWORD_POINTER = "DispatchPointer";
private static final String EVENT_KEYWORD_TRACKBALL = "DispatchTrackball";
private static final String EVENT_KEYWORD_KEY = "DispatchKey";
private static final String EVENT_KEYWORD_FLIP = "DispatchFlip";
// a line at the end of the header
private static final String STARTING_DATA_LINE = "start data >>";
private boolean mFileOpened = false;
FileInputStream mFStream;
DataInputStream mInputStream;
BufferedReader mBufferReader;
public MonkeySourceScript(String filename) {
mScriptFileName = filename;
}
/**
*
* @return the number of total events that will be generated in a round
*/
public int getOneRoundEventCount() {
//plus one home key down and up event
return mEventCountInScript + POLICY_ADDITIONAL_EVENT_COUNT;
}
private void resetValue() {
mLastRecordedDownTimeKey = 0;
mLastRecordedDownTimeMotion = 0;
mLastExportDownTimeKey = 0;
mLastExportDownTimeMotion = 0;
mLastRecordedEventTime = -1;
mLastExportEventTime = -1;
}
private boolean readScriptHeader() {
mEventCountInScript = -1;
mFileOpened = false;
try {
if (THIS_DEBUG) {
System.out.println("reading script header");
}
mFStream = new FileInputStream(mScriptFileName);
mInputStream = new DataInputStream(mFStream);
mBufferReader = new BufferedReader(
new InputStreamReader(mInputStream));
String sLine;
while ((sLine = mBufferReader.readLine()) != null) {
sLine = sLine.trim();
if (sLine.indexOf(HEADER_TYPE) >= 0) {
// at this point, we only have one type of script
} else if (sLine.indexOf(HEADER_COUNT) >= 0) {
try {
mEventCountInScript = Integer.parseInt(sLine.substring(
HEADER_COUNT.length() + 1).trim());
} catch (NumberFormatException e) {
System.err.println(e);
}
} else if (sLine.indexOf(HEADER_SPEED) >= 0) {
try {
mSpeed = Double.parseDouble(sLine.substring(
HEADER_SPEED.length() + 1).trim());
} catch (NumberFormatException e) {
System.err.println(e);
}
} else if (sLine.indexOf(STARTING_DATA_LINE) >= 0) {
// header ends until we read the start data mark
mFileOpened = true;
if (THIS_DEBUG) {
System.out.println("read script header success");
}
return true;
}
}
} catch (FileNotFoundException e) {
System.err.println(e);
} catch (IOException e) {
System.err.println(e);
}
if (THIS_DEBUG) {
System.out.println("Error in reading script header");
}
return false;
}
private void processLine(String s) {
int index1 = s.indexOf('(');
int index2 = s.indexOf(')');
if (index1 < 0 || index2 < 0) {
return;
}
StringTokenizer st = new StringTokenizer(
s.substring(index1 + 1, index2), ",");
if (s.indexOf(EVENT_KEYWORD_KEY) >= 0) {
// key events
try {
long downTime = Long.parseLong(st.nextToken());
long eventTime = Long.parseLong(st.nextToken());
int action = Integer.parseInt(st.nextToken());
int code = Integer.parseInt(st.nextToken());
int repeat = Integer.parseInt(st.nextToken());
int metaState = Integer.parseInt(st.nextToken());
int device = Integer.parseInt(st.nextToken());
int scancode = Integer.parseInt(st.nextToken());
MonkeyKeyEvent e = new MonkeyKeyEvent(downTime, eventTime,
action, code, repeat, metaState, device, scancode);
mQ.addLast(e);
} catch (NumberFormatException e) {
// something wrong with this line in the script
}
} else if (s.indexOf(EVENT_KEYWORD_POINTER) >= 0 ||
s.indexOf(EVENT_KEYWORD_TRACKBALL) >= 0) {
// trackball/pointer event
try {
long downTime = Long.parseLong(st.nextToken());
long eventTime = Long.parseLong(st.nextToken());
int action = Integer.parseInt(st.nextToken());
float x = Float.parseFloat(st.nextToken());
float y = Float.parseFloat(st.nextToken());
float pressure = Float.parseFloat(st.nextToken());
float size = Float.parseFloat(st.nextToken());
int metaState = Integer.parseInt(st.nextToken());
float xPrecision = Float.parseFloat(st.nextToken());
float yPrecision = Float.parseFloat(st.nextToken());
int device = Integer.parseInt(st.nextToken());
int edgeFlags = Integer.parseInt(st.nextToken());
int type = MonkeyEvent.EVENT_TYPE_TRACKBALL;
if (s.indexOf("Pointer") > 0) {
type = MonkeyEvent.EVENT_TYPE_POINTER;
}
MonkeyMotionEvent e = new MonkeyMotionEvent(type, downTime, eventTime,
action, x, y, pressure, size, metaState, xPrecision, yPrecision,
device, edgeFlags);
mQ.addLast(e);
} catch (NumberFormatException e) {
// we ignore this event
}
} else if (s.indexOf(EVENT_KEYWORD_FLIP) >= 0) {
boolean keyboardOpen = Boolean.parseBoolean(st.nextToken());
MonkeyFlipEvent e = new MonkeyFlipEvent(keyboardOpen);
mQ.addLast(e);
}
}
private void closeFile() {
mFileOpened = false;
if (THIS_DEBUG) {
System.out.println("closing script file");
}
try {
mFStream.close();
mInputStream.close();
} catch (IOException e) {
System.out.println(e);
}
}
/**
* add home key press/release event to the queue
*/
private void addHomeKeyEvent() {
MonkeyKeyEvent e = new MonkeyKeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_HOME);
mQ.addLast(e);
e = new MonkeyKeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HOME);
mQ.addLast(e);
}
/**
* read next batch of events from the provided script file
* @return true if success
*/
private boolean readNextBatch() {
String sLine = null;
int readCount = 0;
if (THIS_DEBUG) {
System.out.println("readNextBatch(): reading next batch of events");
}
if (!mFileOpened) {
if (!readScriptHeader()) {
closeFile();
return false;
}
resetValue();
/*
* In order to allow the Monkey to replay captured events multiple times
* we need to define a default start UI, which is the home screen
* Otherwise, it won't be accurate since the captured events
* could end anywhere
*/
addHomeKeyEvent();
}
try {
while (readCount++ < MAX_ONE_TIME_READS &&
(sLine = mBufferReader.readLine()) != null) {
sLine = sLine.trim();
processLine(sLine);
}
} catch (IOException e) {
System.err.println(e);
return false;
}
if (sLine == null) {
// to the end of the file
if (THIS_DEBUG) {
System.out.println("readNextBatch(): to the end of file");
}
closeFile();
}
return true;
}
/**
* sleep for a period of given time, introducing latency among events
* @param time to sleep in millisecond
*/
private void needSleep(long time) {
if (time < 1) {
return;
}
try {
Thread.sleep(time);
} catch (InterruptedException e) {
}
}
/**
* check whether we can successfully read the header of the script file
*/
public boolean validate() {
boolean b = readNextBatch();
if (mVerbose > 0) {
System.out.println("Replaying " + mEventCountInScript +
" events with speed " + mSpeed);
}
return b;
}
public void setVerbose(int verbose) {
mVerbose = verbose;
}
/**
* adjust key downtime and eventtime according to both
* recorded values and current system time
* @param e KeyEvent
*/
private void adjustKeyEventTime(MonkeyKeyEvent e) {
if (e.getEventTime() < 0) {
return;
}
long thisDownTime = 0;
long thisEventTime = 0;
long expectedDelay = 0;
if (mLastRecordedEventTime <= 0) {
// first time event
thisDownTime = SystemClock.uptimeMillis();
thisEventTime = thisDownTime;
} else {
if (e.getDownTime() != mLastRecordedDownTimeKey) {
thisDownTime = e.getDownTime();
} else {
thisDownTime = mLastExportDownTimeKey;
}
expectedDelay = (long) ((e.getEventTime() -
mLastRecordedEventTime) * mSpeed);
thisEventTime = mLastExportEventTime + expectedDelay;
// add sleep to simulate everything in recording
needSleep(expectedDelay - SLEEP_COMPENSATE_DIFF);
}
mLastRecordedDownTimeKey = e.getDownTime();
mLastRecordedEventTime = e.getEventTime();
e.setDownTime(thisDownTime);
e.setEventTime(thisEventTime);
mLastExportDownTimeKey = thisDownTime;
mLastExportEventTime = thisEventTime;
}
/**
* adjust motion downtime and eventtime according to both
* recorded values and current system time
* @param e KeyEvent
*/
private void adjustMotionEventTime(MonkeyMotionEvent e) {
if (e.getEventTime() < 0) {
return;
}
long thisDownTime = 0;
long thisEventTime = 0;
long expectedDelay = 0;
if (mLastRecordedEventTime <= 0) {
// first time event
thisDownTime = SystemClock.uptimeMillis();
thisEventTime = thisDownTime;
} else {
if (e.getDownTime() != mLastRecordedDownTimeMotion) {
thisDownTime = e.getDownTime();
} else {
thisDownTime = mLastExportDownTimeMotion;
}
expectedDelay = (long) ((e.getEventTime() -
mLastRecordedEventTime) * mSpeed);
thisEventTime = mLastExportEventTime + expectedDelay;
// add sleep to simulate everything in recording
needSleep(expectedDelay - SLEEP_COMPENSATE_DIFF);
}
mLastRecordedDownTimeMotion = e.getDownTime();
mLastRecordedEventTime = e.getEventTime();
e.setDownTime(thisDownTime);
e.setEventTime(thisEventTime);
mLastExportDownTimeMotion = thisDownTime;
mLastExportEventTime = thisEventTime;
}
/**
* if the queue is empty, we generate events first
* @return the first event in the queue, if null, indicating the system crashes
*/
public MonkeyEvent getNextEvent() {
long recordedEventTime = -1;
if (mQ.isEmpty()) {
readNextBatch();
}
MonkeyEvent e = mQ.getFirst();
mQ.removeFirst();
if (e.getEventType() == MonkeyEvent.EVENT_TYPE_KEY) {
adjustKeyEventTime((MonkeyKeyEvent) e);
} else if (e.getEventType() == MonkeyEvent.EVENT_TYPE_POINTER ||
e.getEventType() == MonkeyEvent.EVENT_TYPE_TRACKBALL) {
adjustMotionEventTime((MonkeyMotionEvent) e);
}
return e;
}
}
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