Revision: 1180
http://cishell.svn.sourceforge.net/cishell/?rev=1180&view=rev
Author: kongchinhua
Date: 2010-12-20 22:16:06 +0000 (Mon, 20 Dec 2010)
Log Message:
-----------
- Add ArrayUtilities.copyOf() to support expend array while copy
- Use Arrays.copyOf instead of ArrayUtilities.copyOf due to JRE1.5 doesn't support Arrays.copyOf
- Fixed style guide warnings in ArrayUtilities.java
- Reviewed by Joseph
Modified Paths:
--------------
trunk/core/org.cishell.utilities/src/org/cishell/utilities/ArrayUtilities.java
Modified: trunk/core/org.cishell.utilities/src/org/cishell/utilities/ArrayUtilities.java
===================================================================
--- trunk/core/org.cishell.utilities/src/org/cishell/utilities/ArrayUtilities.java 2010-12-16 22:44:07 UTC (rev 1179)
+++ trunk/core/org.cishell.utilities/src/org/cishell/utilities/ArrayUtilities.java 2010-12-20 22:16:06 UTC (rev 1180)
@@ -3,7 +3,11 @@
import java.util.Iterator;
import java.util.List;
-public class ArrayUtilities {
+public final class ArrayUtilities {
+
+ private ArrayUtilities() {
+ }
+
public static int indexOf(Object[] array, Object target) {
for (int ii = 0; ii < array.length; ii++) {
if (array[ii].equals(target)) {
@@ -14,12 +18,12 @@
return -1;
}
- public static void swapFirstMatchToFront(Object[] array, List targets) {
- for (Iterator targetsIt = targets.iterator(); targetsIt.hasNext();) {
+ public static void swapFirstMatchToFront(Object[] array, List<?> targets) {
+ for (Iterator<?> targetsIt = targets.iterator(); targetsIt.hasNext();) {
Object target = targetsIt.next();
int index = ArrayUtilities.indexOf(array, target);
- if ( index != -1 ) {
+ if (index != -1) {
swap(array, 0, index);
return;
}
@@ -42,6 +46,31 @@
return clone;
}
+
+ /**
+ * This method will return a shadow copy of the given array with the desired size.
+ * If the given disiredSize exceeds the original array size, the remaining items
+ * will be filled with empty string.
+ * @param array - The original array to be copied
+ * @param desiredSize - The desired size of the new array
+ * @return The new copy of the original array with the desired size
+ */
+ public static String[] copyOf(String[] array, int desiredSize) {
+ String[] newArray = new String[desiredSize];
+ int copiedSize = Math.min(array.length, desiredSize);
+
+ /* Copy items from the original array to new array */
+ for (int i = 0; i < copiedSize; i++) {
+ newArray[i] = array[i];
+ }
+
+ /* Fill the extra items will empty string if there are */
+ for (int i = copiedSize; i < desiredSize; i++) {
+ newArray[i] = "";
+ }
+
+ return newArray;
+ }
// TODO: Find a better place to put this?
public static <T> boolean allAreNull(T... objects) {
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