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/* ============================================================
* This code is part of the "apex-lang" open source project avaiable at:
*
* http://code.google.com/p/apex-lang/
*
* This code is licensed under the Apache License, Version 2.0. You may obtain a
* copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
* ============================================================
*/
global class ArrayUtils {
global static String[] EMPTY_STRING_ARRAY = new String[]{};
global static Integer MAX_NUMBER_OF_ELEMENTS_IN_LIST {get{return 1000;}}
global static List<String> objectToString(List<Object> objects){
List<String> strings = null;
if(objects != null){
strings = new List<String>();
if(objects.size() > 0){
for(Object obj : objects){
if(obj instanceof String){
strings.add((String)obj);
}
}
}
}
return strings;
}
global static Object[] reverse(Object[] anArray) {
if (anArray == null) {
return null;
}
Integer i = 0;
Integer j = anArray.size() - 1;
Object tmp;
while (j > i) {
tmp = anArray[j];
anArray[j] = anArray[i];
anArray[i] = tmp;
j--;
i++;
}
return anArray;
}
global static SObject[] reverse(SObject[] anArray) {
if (anArray == null) {
return null;
}
Integer i = 0;
Integer j = anArray.size() - 1;
SObject tmp;
while (j > i) {
tmp = anArray[j];
anArray[j] = anArray[i];
anArray[i] = tmp;
j--;
i++;
}
return anArray;
}
global static List<String> lowerCase(List<String> strs){
List<String> returnValue = null;
if(strs != null){
returnValue = new List<String>();
if(strs.size() > 0){
for(String str : strs){
returnValue.add(str == null ? null : str.toLowerCase());
}
}
}
return returnValue;
}
global static List<String> upperCase(List<String> strs){
List<String> returnValue = null;
if(strs != null){
returnValue = new List<String>();
if(strs.size() > 0){
for(String str : strs){
returnValue.add(str == null ? null : str.toUpperCase());
}
}
}
return returnValue;
}
global static List<String> trim(List<String> strs){
List<String> returnValue = null;
if(strs != null){
returnValue = new List<String>();
if(strs.size() > 0){
for(String str : strs){
returnValue.add(str == null ? null : str.trim());
}
}
}
return returnValue;
}
global static Object[] mergex(Object[] array1, Object[] array2){
if(array1 == null){ return array2; }
if(array2 == null){ return array1; }
Object[] merged = new Object[array1.size() + array2.size()];
for(Integer i = 0; i < array1.size(); i++){
merged[i] = array1[i];
}
for(Integer i = 0; i < array2.size(); i++){
merged[i+array1.size()] = array2[i];
}
return merged;
}
global static SObject[] mergex(SObject[] array1, SObject[] array2){
if(array1 == null){ return array2; }
if(array2 == null){ return array1; }
if(array1.size() <= 0){ return array2; }
List<SObject> merged = createEmptySObjectList(array1[0]);
for(SObject sObj : array1){ merged.add(sObj); }
for(SObject sObj : array2){ merged.add(sObj); }
return merged;
}
global static Boolean isEmpty(Object[] objectArray){
if(objectArray == null){
return true;
}
return objectArray.size() == 0;
}
global static Boolean isEmpty(SObject[] objectArray){
if(objectArray == null){
return true;
}
return objectArray.size() == 0;
}
global static Boolean isNotEmpty(Object[] objectArray){
return !isEmpty(objectArray);
}
global static Boolean isNotEmpty(SObject[] objectArray){
return !isEmpty(objectArray);
}
global static Object[] pluck(SObject[] objectArray, String fieldName){
if(isEmpty(objectArray) || StringUtils.isBlank(fieldName)){
return new Object[]{};
}
Object[] plucked = new Object[objectArray.size()];
for(Integer i = 0; i < objectArray.size(); i++){
plucked[i] = objectArray[i].get(fieldName);
}
return plucked;
}
global static String toString(Object[] objectArray){
if(objectArray == null){
return 'null';
}
String returnValue = '{';
for(Integer i = 0; i < objectArray.size(); i++){
if(i!=0){ returnValue += ','; }
returnValue += '\'' + objectArray[i] + '\'';
}
returnValue += '}';
return returnValue;
}
global static String toString(SObject[] objectArray){
if(objectArray == null){
return 'null';
}
String returnValue = '{';
for(Integer i = 0; i < objectArray.size(); i++){
if(i!=0){ returnValue += ','; }
returnValue += '\'' + objectArray[i] + '\'';
}
returnValue += '}';
return returnValue;
}
global static void assertArraysAreEqual(Object[] expected, Object[] actual){
//check to see if one param is null but the other is not
System.assert((expected == null && actual == null)|| (expected != null && actual != null),
'Assertion failed, the following two arrays are not equal. Expected: '
+ ArrayUtils.toString(expected) + ', Actual: ' + ArrayUtils.toString(actual));
if(expected != null && actual != null){
System.assert(expected.size() == actual.size(), 'Assertion failed, the following two arrays are not equal. Expected: '
+ ArrayUtils.toString(expected) + ', Actual: ' + ArrayUtils.toString(actual));
for(Integer i = 0; i < expected.size(); i++){
System.assert(expected[i] == actual[i], 'Assertion failed, the following two arrays are not equal. Expected: '
+ ArrayUtils.toString(expected) + ', Actual: ' + ArrayUtils.toString(actual));
}
}
}
global static void assertArraysAreEqual(SObject[] expected, SObject[] actual){
//check to see if one param is null but the other is not
System.assert((expected == null && actual == null)|| (expected != null && actual != null),
'Assertion failed, the following two arrays are not equal. Expected: '
+ ArrayUtils.toString(expected) + ', Actual: ' + ArrayUtils.toString(actual));
if(expected != null && actual != null){
System.assert(expected.size() == actual.size(), 'Assertion failed, the following two arrays are not equal. Expected: '
+ ArrayUtils.toString(expected) + ', Actual: ' + ArrayUtils.toString(actual));
for(Integer i = 0; i < expected.size(); i++){
System.assert(expected[i] == actual[i], 'Assertion failed, the following two arrays are not equal. Expected: '
+ ArrayUtils.toString(expected) + ', Actual: ' + ArrayUtils.toString(actual));
}
}
}
/**
* This method is no longer needed as in Spring '10, you can created
* generic SObject lists.
*
* @deprecated
*/
global static List<SObject> createEmptySObjectList(SObject prototype){
if(prototype == null){
return null;
}
return Database.query(
'select Id from '
+ StringUtils.split(''+prototype,':')[0]
+ ' where Id = \'0015000000Mrr40\' LIMIT 0'); // use dummy Id to ensure no return
}
global static List<Object> merg(List<Object> list1, List<Object> list2) {
List<Object> returnList = new List<Object>();
if(list1 != null && list2 != null && (list1.size()+list2.size()) > MAX_NUMBER_OF_ELEMENTS_IN_LIST){
throw new IllegalArgumentException('Lists cannot be merged because new list would be greater than maximum number of elements in a list: ' + MAX_NUMBER_OF_ELEMENTS_IN_LIST);
}
if(isNotEmpty(list1)){
for(Object elmt : list1){
returnList.add(elmt);
}
}
if(isNotEmpty(list2)){
for(Object elmt : list2){
returnList.add(elmt);
}
}
return returnList;
}
global static List<SObject> merg(List<SObject> list1, List<SObject> list2) {
if(list1 != null && list2 != null && (list1.size()+list2.size()) > MAX_NUMBER_OF_ELEMENTS_IN_LIST){
throw new IllegalArgumentException('Lists cannot be merged because new list would be greater than maximum number of elements in a list: ' + MAX_NUMBER_OF_ELEMENTS_IN_LIST);
}
if(isEmpty(list1) && isEmpty(list2)){
return null;
}
List<SObject> returnList = createEmptySObjectList(isNotEmpty(list1) ? list1.get(0) : list2.get(0));
if(list1 != null){
for(SObject elmt : list1){
returnList.add(elmt);
}
}
if(list2 != null){
for(SObject elmt : list2){
returnList.add(elmt);
}
}
return returnList;
}
global static List<Object> subset(List<Object> aList, Integer count) {
return subset(aList,0,count);
}
global static List<Object> subset(List<Object> list1, Integer startIndex, Integer count) {
List<Object> returnList = new List<Object>();
if(list1 != null && list1.size() > 0 && startIndex >= 0 && startIndex <= list1.size()-1 && count > 0){
for(Integer i = startIndex; i < list1.size() && i - startIndex < count; i++){
returnList.add(list1.get(i));
}
}
return returnList;
}
global static List<SObject> subset(List<SObject> aList, Integer count) {
return subset(aList,0,count);
}
global static List<SObject> subset(List<SObject> list1, Integer startIndex, Integer count) {
List<SObject> returnList = null;
if(list1 != null && list1.size() > 0 && startIndex <= list1.size()-1 && count > 0){
returnList = createEmptySObjectList(list1.get(0));
for(Integer i = startIndex; i < list1.size() && i - startIndex < count; i++){
returnList.add(list1.get(i));
}
}
return returnList;
}
//===============================================
//LIST/ARRAY SORTING
//===============================================
//FOR FORCE.COM PRIMITIVES (Double,Integer,ID,etc.):
global static List<Object> qsort(List<Object> theList) {
return qsort(theList,new PrimitiveComparator());
}
global static List<Object> qsort(List<Object> theList, Boolean sortAsc) {
return qsort(theList,new PrimitiveComparator(),sortAsc);
}
global static List<Object> qsort(List<Object> theList, ObjectComparator comparator) {
return qsort(theList,comparator,true);
}
global static List<Object> qsort(List<Object> theList, ObjectComparator comparator, Boolean sortAsc) {
return qsort(theList, 0, (theList == null ? 0 : theList.size()-1),comparator,sortAsc);
}
//FOR SALESFORCE OBJECTS (sObjects):
global static List<SObject> qsort(List<SObject> theList, ISObjectComparator comparator) {
return qsort(theList,comparator,true);
}
global static List<SObject> qsort(List<SObject> theList, ISObjectComparator comparator,Boolean sortAsc ) {
return qsort(theList, 0, (theList == null ? 0 : theList.size()-1),comparator,sortAsc);
}
private static List<Object> qsort(List<Object> theList,
Integer lo0,
Integer hi0,
ObjectComparator comparator,
Boolean sortAsc){
Integer lo = lo0;
Integer hi = hi0;
if (lo >= hi) {
return theList;
} else if( lo == hi - 1 ) {
if (( comparator.compare(theList[lo],theList[hi])>0 && sortAsc) ||
(comparator.compare(theList[lo],theList[hi])<0 && !sortAsc)
) {
Object prs = theList[lo];
theList[lo] = theList[hi];
theList[hi] = prs;
}
return theList;
}
Object pivot = theList[(lo + hi) / 2];
theList[(lo + hi) / 2] = theList[hi];
theList[hi] = pivot;
while( lo < hi ) {
while ((comparator.compare(theList[lo], pivot)<=0 && lo < hi && sortAsc) ||
(comparator.compare(theList[lo], pivot)>=0 && lo < hi && !sortAsc)
) { lo++; }
while (( comparator.compare(pivot,theList[hi])<=0 && lo < hi && sortAsc) ||
( comparator.compare(pivot,theList[hi])>=0 && lo < hi && !sortAsc)
) { hi--; }
if( lo < hi ){
Object prs = theList[lo];
theList[lo] = theList[hi];
theList[hi] = prs;
}
}
theList[hi0] = theList[hi];
theList[hi] = pivot;
qsort(theList, lo0, lo-1,comparator,sortAsc);
qsort(theList, hi+1, hi0,comparator,sortAsc);
return theList;
}
private static List<SObject> qsort(List<SObject> theList,
Integer lo0,
Integer hi0,
ISObjectComparator comparator,
Boolean sortAsc){
Integer lo = lo0;
Integer hi = hi0;
if (lo >= hi) {
return theList;
} else if( lo == hi - 1 ) {
if (( comparator.compare(theList[lo],theList[hi])>0 && sortAsc) ||
(comparator.compare(theList[lo],theList[hi])<0 && !sortAsc)
) {
SObject prs = theList[lo];
theList[lo] = theList[hi];
theList[hi] = prs;
}
return theList;
}
SObject pivot = theList[(lo + hi) / 2];
theList[(lo + hi) / 2] = theList[hi];
theList[hi] = pivot;
while( lo < hi ) {
while ((comparator.compare(theList[lo], pivot)<=0 && lo < hi && sortAsc) ||
(comparator.compare(theList[lo], pivot)>=0 && lo < hi && !sortAsc)
) { lo++; }
while (( comparator.compare(pivot,theList[hi])<=0 && lo < hi && sortAsc) ||
( comparator.compare(pivot,theList[hi])>=0 && lo < hi && !sortAsc)
) { hi--; }
if( lo < hi ){
SObject prs = theList[lo];
theList[lo] = theList[hi];
theList[hi] = prs;
}
}
theList[hi0] = theList[hi];
theList[hi] = pivot;
qsort(theList, lo0, lo-1,comparator,sortAsc);
qsort(theList, hi+1, hi0,comparator,sortAsc);
return theList;
}
/*
global static List<Object> unique(List<Object> theList) {
List<Object> uniques = new List<Object>();
Set<Object> keys = new Set<Object>();
if(theList != null && theList.size() > 0){
for(Object obj : theList){
if(keys.contains(obj)){
continue;
} else {
keys.add(obj);
uniques.add(obj);
}
}
}
return uniques;
}
global static List<SObject> unique(List<SObject> theList) {
if(theList == null){
return null;
}
List<SObject> uniques = createEmptySObjectList(theList.get(0));
Set<String> keys = new Set<String>();
if(theList != null && theList.size() > 0){
String key = null;
for(SObject obj : theList){
key = obj == null ? null : ''+obj;
if(keys.contains(key)){
continue;
} else {
keys.add(key);
uniques.add(obj);
}
}
}
return uniques;
}
*/
}
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