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Small speedups in time-related code

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git-svn-id: https://zxing.googlecode.com/svn/trunk@780 59b500cc-1b3d-0410-9834-0bbf25fbcc57
This commit is contained in:
srowen 2008-12-09 16:20:32 +00:00
parent f265d0872f
commit 1f2699c196
4 changed files with 32 additions and 15 deletions
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9
android/src/com/google/zxing/client/android/DecodeThread.java
View file

@ -28,7 +28,6 @@ import com.google.zxing.MultiFormatReader;
import com.google.zxing.ReaderException;
import com.google.zxing.Result;
import java.util.Date;
import java.util.Hashtable;
import java.util.Vector;
@ -151,7 +150,7 @@ final class DecodeThread extends Thread {
* @param height The height of the preview frame.
*/
private void decode(byte[] data, int width, int height) {
Date startDate = new Date();
long start = System.currentTimeMillis();
boolean success;
Result rawResult = null;
YUVMonochromeBitmapSource source = new YUVMonochromeBitmapSource(data, width, height,
@ -162,18 +161,18 @@ final class DecodeThread extends Thread {
} catch (ReaderException e) {
success = false;
}
Date endDate = new Date();
long end = System.currentTimeMillis();
if (success) {
Message message = Message.obtain(mActivity.mHandler, R.id.decode_succeeded, rawResult);
message.arg1 = (int) (endDate.getTime() - startDate.getTime());
message.arg1 = (int) (end - start);
Bundle bundle = new Bundle();
bundle.putParcelable(BARCODE_BITMAP, source.renderToBitmap());
message.setData(bundle);
message.sendToTarget();
} else {
Message message = Message.obtain(mActivity.mHandler, R.id.decode_failed);
message.arg1 = (int) (endDate.getTime() - startDate.getTime());
message.arg1 = (int) (end - start);
message.sendToTarget();
}
}

8
android/src/com/google/zxing/client/android/result/AddressBookResultHandler.java
View file

@ -32,6 +32,8 @@ import java.util.Date;
public final class AddressBookResultHandler extends ResultHandler {
private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
private final boolean[] mFields;
private int mButtonCount;
@ -145,8 +147,10 @@ public final class AddressBookResultHandler extends ResultHandler {
String birthday = result.getBirthday();
if (birthday != null && birthday.length() > 0) {
DateFormat format = new SimpleDateFormat("yyyyMMdd");
Date date = format.parse(birthday, new ParsePosition(0));
Date date;
synchronized (DATE_FORMAT) {
date = DATE_FORMAT.parse(birthday, new ParsePosition(0));
}
ParsedResult.maybeAppend(DateFormat.getDateInstance().format(date.getTime()), contents);
}
ParsedResult.maybeAppend(result.getNote(), contents);

15
android/src/com/google/zxing/client/android/result/CalendarResultHandler.java
View file

@ -30,6 +30,9 @@ import java.util.GregorianCalendar;
public final class CalendarResultHandler extends ResultHandler {
private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
private static final DateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
private static final int[] mButtons = {
R.string.button_add_calendar
};
@ -77,13 +80,17 @@ public final class CalendarResultHandler extends ResultHandler {
private void appendTime(String when, StringBuffer result) {
if (when.length() == 8) {
// Show only year/month/day
DateFormat format = new SimpleDateFormat("yyyyMMdd");
Date date = format.parse(when, new ParsePosition(0));
Date date;
synchronized (DATE_FORMAT) {
date = DATE_FORMAT.parse(when, new ParsePosition(0));
}
ParsedResult.maybeAppend(DateFormat.getDateInstance().format(date.getTime()), result);
} else {
// The when string can be local time, or UTC if it ends with a Z
DateFormat format = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
Date date = format.parse(when.substring(0, 15), new ParsePosition(0));
Date date;
synchronized (DATE_TIME_FORMAT) {
date = DATE_TIME_FORMAT.parse(when.substring(0, 15), new ParsePosition(0));
}
long milliseconds = date.getTime();
if (when.length() == 16 && when.charAt(15) == 'Z') {
Calendar calendar = new GregorianCalendar();

15
android/src/com/google/zxing/client/android/result/ResultHandler.java
View file

@ -37,6 +37,9 @@ import java.util.GregorianCalendar;
public abstract class ResultHandler {
private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
private static final DateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
public static final int MAX_BUTTON_COUNT = 4;
protected final ParsedResult mResult;
@ -119,13 +122,17 @@ public abstract class ResultHandler {
private long calculateMilliseconds(String when) {
if (when.length() == 8) {
// Only contains year/month/day
DateFormat format = new SimpleDateFormat("yyyyMMdd");
Date date = format.parse(when, new ParsePosition(0));
Date date;
synchronized (DATE_FORMAT) {
date = DATE_FORMAT.parse(when, new ParsePosition(0));
}
return date.getTime();
} else {
// The when string can be local time, or UTC if it ends with a Z
DateFormat format = new SimpleDateFormat("yyyyMMdd'T'HHmmss");
Date date = format.parse(when.substring(0, 15), new ParsePosition(0));
Date date;
synchronized (DATE_TIME_FORMAT) {
date = DATE_TIME_FORMAT.parse(when.substring(0, 15), new ParsePosition(0));
}
long milliseconds = date.getTime();
if (when.length() == 16 && when.charAt(15) == 'Z') {
Calendar calendar = new GregorianCalendar();