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ICU-12811 Fix cldrUtils (add ElapsedTime and UnicodeMap*)
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icu4j/main/tests/translit/src/com/ibm/icu/dev/util/ElapsedTimer.java
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// © 2016 and later: Unicode, Inc. and others. | ||
// License & terms of use: http://www.unicode.org/copyright.html | ||
// | ||
// ElapsedTimer.java | ||
// | ||
// Created by Steven R. Loomis on 11/11/2005. | ||
// Copyright 2005-2012 IBM. All rights reserved. | ||
// | ||
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package com.ibm.icu.dev.util; | ||
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import java.util.Locale; | ||
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import com.ibm.icu.text.MessageFormat; | ||
import com.ibm.icu.text.NumberFormat; | ||
import com.ibm.icu.text.RuleBasedNumberFormat; | ||
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/** | ||
* Simple stopwatch timer. | ||
* Usage: { ElapsedTimer et = new ElapsedTimer(); | ||
* do_some_stuff; | ||
* System.out.println("It took " + et + " to do stuff."); } | ||
* | ||
* Advanced: { ElapsedTimer et = new ElapsedTimer("Thing2's time: {0}"); // messageformat pattern | ||
* do_thing_2(); | ||
* System.out.println(et.toString()); } | ||
* | ||
* More advanced: NumberFormat and/or MessageFormat can be provided in the constructor | ||
* | ||
* @internal CLDR | ||
*/ | ||
public final class ElapsedTimer { | ||
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/** | ||
* Convenience method to print the elasped time (in milliseconds) | ||
*/ | ||
public static String elapsedTime(long start, long end) { | ||
return diffTime(getFormat(), start, end); | ||
} | ||
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public static String elapsedTime(long start) { | ||
return diffTime(getFormat(), start, System.currentTimeMillis()); | ||
} | ||
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// class | ||
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private long startTime = System.currentTimeMillis(); | ||
private NumberFormat myDurationFormat = null; | ||
private MessageFormat myMsgFormat = null; | ||
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public ElapsedTimer() { | ||
} | ||
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public ElapsedTimer(MessageFormat aMsgFmt) { | ||
myMsgFormat = aMsgFmt; | ||
} | ||
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public ElapsedTimer(NumberFormat aNumFmt) { | ||
myDurationFormat = aNumFmt; | ||
} | ||
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public ElapsedTimer(MessageFormat aMsgFmt, NumberFormat aNumFmt) { | ||
myMsgFormat = aMsgFmt; | ||
myDurationFormat = aNumFmt; | ||
} | ||
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public ElapsedTimer(String pattern) { | ||
myMsgFormat = new MessageFormat(pattern); | ||
} | ||
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public ElapsedTimer(String pattern, NumberFormat aNumFmt) { | ||
myMsgFormat = new MessageFormat(pattern); | ||
myDurationFormat = aNumFmt; | ||
} | ||
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/** | ||
* @return elapsed time in seconds since object creation | ||
*/ | ||
public final String toString() { | ||
long endTime = System.currentTimeMillis(); | ||
String duration = diffTime(myDurationFormat, startTime, endTime); | ||
if(myMsgFormat == null) { | ||
return duration; | ||
} else { | ||
return myMsgFormat.format(new Object[] {duration}); | ||
} | ||
} | ||
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private static NumberFormat gFormat = null; | ||
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private static NumberFormat getFormat() { | ||
if(gFormat == null) { | ||
gFormat = new RuleBasedNumberFormat(Locale.US, | ||
RuleBasedNumberFormat.DURATION); | ||
} | ||
return gFormat; | ||
} | ||
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private static String diffTime(NumberFormat fmt, long start, long end) { | ||
if(fmt==null) { | ||
fmt = getFormat(); | ||
} | ||
synchronized(fmt) { | ||
long age = end - start; | ||
long diff = age/1000; // millis per second. Workaround ticket:7936 by using whole number seconds. | ||
return fmt.format(diff); | ||
} | ||
} | ||
} |