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Replaced private integer constants with private static enum.

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git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1627974 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Duncan Jones 2014-09-27 15:03:26 +00:00
parent bc91bedd45
commit 52e854e3bd
1 changed files with 28 additions and 24 deletions
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44
src/main/java/org/apache/commons/lang3/time/DateUtils.java
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@ -117,20 +117,24 @@ public class DateUtils {
public static final int RANGE_MONTH_MONDAY = 6; public static final int RANGE_MONTH_MONDAY = 6;
/** /**
* Constant marker for truncating. * Calendar modification types.
* @since 3.0
*/ */
private static final int MODIFY_TRUNCATE = 0; private static enum ModifyType {
/** /**
* Constant marker for rounding. * Truncation.
* @since 3.0
*/ */
private static final int MODIFY_ROUND = 1; TRUNCATE,
/** /**
* Constant marker for ceiling. * Rounding.
* @since 3.0
*/ */
private static final int MODIFY_CEILING = 2; ROUND,
/**
* Ceiling.
*/
CEILING
}
/** /**
* <p>{@code DateUtils} instances should NOT be constructed in * <p>{@code DateUtils} instances should NOT be constructed in
@ -709,7 +713,7 @@ public static Date round(final Date date, final int field) {
} }
final Calendar gval = Calendar.getInstance(); final Calendar gval = Calendar.getInstance();
gval.setTime(date); gval.setTime(date);
modify(gval, field, MODIFY_ROUND); modify(gval, field, ModifyType.ROUND);
return gval.getTime(); return gval.getTime();
} }
@ -745,7 +749,7 @@ public static Calendar round(final Calendar date, final int field) {
throw new IllegalArgumentException("The date must not be null"); throw new IllegalArgumentException("The date must not be null");
} }
final Calendar rounded = (Calendar) date.clone(); final Calendar rounded = (Calendar) date.clone();
modify(rounded, field, MODIFY_ROUND); modify(rounded, field, ModifyType.ROUND);
return rounded; return rounded;
} }
@ -812,7 +816,7 @@ public static Date truncate(final Date date, final int field) {
} }
final Calendar gval = Calendar.getInstance(); final Calendar gval = Calendar.getInstance();
gval.setTime(date); gval.setTime(date);
modify(gval, field, MODIFY_TRUNCATE); modify(gval, field, ModifyType.TRUNCATE);
return gval.getTime(); return gval.getTime();
} }
@ -836,7 +840,7 @@ public static Calendar truncate(final Calendar date, final int field) {
throw new IllegalArgumentException("The date must not be null"); throw new IllegalArgumentException("The date must not be null");
} }
final Calendar truncated = (Calendar) date.clone(); final Calendar truncated = (Calendar) date.clone();
modify(truncated, field, MODIFY_TRUNCATE); modify(truncated, field, ModifyType.TRUNCATE);
return truncated; return truncated;
} }
@ -892,7 +896,7 @@ public static Date ceiling(final Date date, final int field) {
} }
final Calendar gval = Calendar.getInstance(); final Calendar gval = Calendar.getInstance();
gval.setTime(date); gval.setTime(date);
modify(gval, field, MODIFY_CEILING); modify(gval, field, ModifyType.CEILING);
return gval.getTime(); return gval.getTime();
} }
@ -917,7 +921,7 @@ public static Calendar ceiling(final Calendar date, final int field) {
throw new IllegalArgumentException("The date must not be null"); throw new IllegalArgumentException("The date must not be null");
} }
final Calendar ceiled = (Calendar) date.clone(); final Calendar ceiled = (Calendar) date.clone();
modify(ceiled, field, MODIFY_CEILING); modify(ceiled, field, ModifyType.CEILING);
return ceiled; return ceiled;
} }
@ -960,7 +964,7 @@ public static Date ceiling(final Object date, final int field) {
* @param modType type to truncate, round or ceiling * @param modType type to truncate, round or ceiling
* @throws ArithmeticException if the year is over 280 million * @throws ArithmeticException if the year is over 280 million
*/ */
private static void modify(final Calendar val, final int field, final int modType) { private static void modify(final Calendar val, final int field, final ModifyType modType) {
if (val.get(Calendar.YEAR) > 280000000) { if (val.get(Calendar.YEAR) > 280000000) {
throw new ArithmeticException("Calendar value too large for accurate calculations"); throw new ArithmeticException("Calendar value too large for accurate calculations");
} }
@ -981,7 +985,7 @@ private static void modify(final Calendar val, final int field, final int modTyp
// truncate milliseconds // truncate milliseconds
final int millisecs = val.get(Calendar.MILLISECOND); final int millisecs = val.get(Calendar.MILLISECOND);
if (MODIFY_TRUNCATE == modType || millisecs < 500) { if (ModifyType.TRUNCATE == modType || millisecs < 500) {
time = time - millisecs; time = time - millisecs;
} }
if (field == Calendar.SECOND) { if (field == Calendar.SECOND) {
@ -990,7 +994,7 @@ private static void modify(final Calendar val, final int field, final int modTyp
// truncate seconds // truncate seconds
final int seconds = val.get(Calendar.SECOND); final int seconds = val.get(Calendar.SECOND);
if (!done && (MODIFY_TRUNCATE == modType || seconds < 30)) { if (!done && (ModifyType.TRUNCATE == modType || seconds < 30)) {
time = time - (seconds * 1000L); time = time - (seconds * 1000L);
} }
if (field == Calendar.MINUTE) { if (field == Calendar.MINUTE) {
@ -999,7 +1003,7 @@ private static void modify(final Calendar val, final int field, final int modTyp
// truncate minutes // truncate minutes
final int minutes = val.get(Calendar.MINUTE); final int minutes = val.get(Calendar.MINUTE);
if (!done && (MODIFY_TRUNCATE == modType || minutes < 30)) { if (!done && (ModifyType.TRUNCATE == modType || minutes < 30)) {
time = time - (minutes * 60000L); time = time - (minutes * 60000L);
} }
@ -1015,7 +1019,7 @@ private static void modify(final Calendar val, final int field, final int modTyp
for (final int element : aField) { for (final int element : aField) {
if (element == field) { if (element == field) {
//This is our field... we stop looping //This is our field... we stop looping
if (modType == MODIFY_CEILING || (modType == MODIFY_ROUND && roundUp)) { if (modType == ModifyType.CEILING || (modType == ModifyType.ROUND && roundUp)) {
if (field == DateUtils.SEMI_MONTH) { if (field == DateUtils.SEMI_MONTH) {
//This is a special case that's hard to generalize //This is a special case that's hard to generalize
//If the date is 1, we round up to 16, otherwise //If the date is 1, we round up to 16, otherwise