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CS-19072: got rid of unneeded type casting when apply pagination to different resources

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This commit is contained in:
Alena Prokharchyk 2014-07-30 10:33:45 -07:00
parent 42a861e590
commit 89017a7d7b
4 changed files with 19 additions and 26 deletions
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10
server/src/com/cloud/configuration/ConfigurationManagerImpl.java
View File

@ -4487,18 +4487,16 @@ public class ConfigurationManagerImpl extends ManagerBase implements Configurati
}
// Now apply pagination
List<?> wPagination = StringUtils.applyPagination(supportedOfferings, cmd.getStartIndex(), cmd.getPageSizeVal());
List<? extends NetworkOffering> wPagination = StringUtils.applyPagination(supportedOfferings, cmd.getStartIndex(), cmd.getPageSizeVal());
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends NetworkOffering>, Integer> listWPagination = new Pair<List<? extends NetworkOffering>, Integer>((List<NetworkOffering>) wPagination, offerings.size());
Pair<List<? extends NetworkOffering>, Integer> listWPagination = new Pair<List<? extends NetworkOffering>, Integer>(wPagination, offerings.size());
return listWPagination;
}
return new Pair<List<? extends NetworkOffering>, Integer>(supportedOfferings, supportedOfferings.size());
} else {
List<?> wPagination = StringUtils.applyPagination(offerings, cmd.getStartIndex(), cmd.getPageSizeVal());
List<? extends NetworkOffering> wPagination = StringUtils.applyPagination(offerings, cmd.getStartIndex(), cmd.getPageSizeVal());
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends NetworkOffering>, Integer> listWPagination = new Pair<List<? extends NetworkOffering>, Integer>((List<NetworkOffering>) wPagination, offerings.size());
Pair<List<? extends NetworkOffering>, Integer> listWPagination = new Pair<List<? extends NetworkOffering>, Integer>(wPagination, offerings.size());
return listWPagination;
}
return new Pair<List<? extends NetworkOffering>, Integer>(offerings, offerings.size());

5
server/src/com/cloud/network/NetworkServiceImpl.java
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@ -1623,10 +1623,9 @@ public class NetworkServiceImpl extends ManagerBase implements NetworkService {
}
//Now apply pagination
List<?> wPagination = StringUtils.applyPagination(networksToReturn, cmd.getStartIndex(), cmd.getPageSizeVal());
List<? extends Network> wPagination = StringUtils.applyPagination(networksToReturn, cmd.getStartIndex(), cmd.getPageSizeVal());
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends Network>, Integer> listWPagination = new Pair<List<? extends Network>, Integer>((List<NetworkVO>) wPagination, networksToReturn.size());
Pair<List<? extends Network>, Integer> listWPagination = new Pair<List<? extends Network>, Integer>(wPagination, networksToReturn.size());
return listWPagination;
}

20
server/src/com/cloud/network/vpc/VpcManagerImpl.java
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@ -671,18 +671,16 @@ public class VpcManagerImpl extends ManagerBase implements VpcManager, VpcProvis
}
}
List<?> wPagination = StringUtils.applyPagination(supportedOfferings, startIndex, pageSizeVal);
List<? extends VpcOffering> wPagination = StringUtils.applyPagination(supportedOfferings, startIndex, pageSizeVal);
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends VpcOffering>, Integer> listWPagination = new Pair<List<? extends VpcOffering>, Integer>((List<VpcOffering>) wPagination, supportedOfferings.size());
Pair<List<? extends VpcOffering>, Integer> listWPagination = new Pair<List<? extends VpcOffering>, Integer>(wPagination, supportedOfferings.size());
return listWPagination;
}
return new Pair<List<? extends VpcOffering>, Integer>(supportedOfferings, supportedOfferings.size());
} else {
List<?> wPagination = StringUtils.applyPagination(offerings, startIndex, pageSizeVal);
List<? extends VpcOffering> wPagination = StringUtils.applyPagination(offerings, startIndex, pageSizeVal);
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends VpcOffering>, Integer> listWPagination = new Pair<List<? extends VpcOffering>, Integer>((List<VpcOffering>) wPagination, offerings.size());
Pair<List<? extends VpcOffering>, Integer> listWPagination = new Pair<List<? extends VpcOffering>, Integer>(wPagination, offerings.size());
return listWPagination;
}
return new Pair<List<? extends VpcOffering>, Integer>(offerings, offerings.size());
@ -1128,18 +1126,16 @@ public class VpcManagerImpl extends ManagerBase implements VpcManager, VpcProvis
}
}
List<?> wPagination = StringUtils.applyPagination(supportedVpcs, startIndex, pageSizeVal);
List<? extends Vpc> wPagination = StringUtils.applyPagination(supportedVpcs, startIndex, pageSizeVal);
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends Vpc>, Integer> listWPagination = new Pair<List<? extends Vpc>, Integer>((List<Vpc>) wPagination, supportedVpcs.size());
Pair<List<? extends Vpc>, Integer> listWPagination = new Pair<List<? extends Vpc>, Integer>(wPagination, supportedVpcs.size());
return listWPagination;
}
return new Pair<List<? extends Vpc>, Integer>(supportedVpcs, supportedVpcs.size());
} else {
List<?> wPagination = StringUtils.applyPagination(vpcs, startIndex, pageSizeVal);
List<? extends Vpc> wPagination = StringUtils.applyPagination(vpcs, startIndex, pageSizeVal);
if (wPagination != null) {
@SuppressWarnings("unchecked")
Pair<List<? extends Vpc>, Integer> listWPagination = new Pair<List<? extends Vpc>, Integer>((List<Vpc>) wPagination, vpcs.size());
Pair<List<? extends Vpc>, Integer> listWPagination = new Pair<List<? extends Vpc>, Integer>(wPagination, vpcs.size());
return listWPagination;
}
return new Pair<List<? extends Vpc>, Integer>(vpcs, vpcs.size());

10
utils/src/com/cloud/utils/StringUtils.java
View File

@ -269,16 +269,16 @@ public class StringUtils {
return s;
}
public static List<?> applyPagination(List<?> originalList, Long startIndex, Long pageSizeVal) {
public static <T> List<T> applyPagination(List<T> originalList, Long startIndex, Long pageSizeVal) {
// Most likely pageSize will never exceed int value, and we need integer to partition the listToReturn
boolean applyPagination = startIndex != null && pageSizeVal != null
&& startIndex <= Integer.MAX_VALUE && startIndex >= Integer.MIN_VALUE && pageSizeVal <= Integer.MAX_VALUE
&& pageSizeVal >= Integer.MIN_VALUE;
List<?> listWPagination = null;
List<T> listWPagination = null;
if (applyPagination) {
listWPagination = new ArrayList<>();
int index = startIndex.intValue() == 0 ? 0 : startIndex.intValue() / pageSizeVal.intValue();
List<List<?>> partitions = StringUtils.partitionList(originalList, pageSizeVal.intValue());
List<List<T>> partitions = StringUtils.partitionList(originalList, pageSizeVal.intValue());
if (index < partitions.size()) {
listWPagination = partitions.get(index);
}
@ -286,8 +286,8 @@ public class StringUtils {
return listWPagination;
}
private static List<List<?>> partitionList(List<?> originalList, int chunkSize) {
List<List<?>> listOfChunks = new ArrayList<List<?>>();
private static <T> List<List<T>> partitionList(List<T> originalList, int chunkSize) {
List<List<T>> listOfChunks = new ArrayList<List<T>>();
for (int i = 0; i < originalList.size() / chunkSize; i++) {
listOfChunks.add(originalList.subList(i * chunkSize, i * chunkSize + chunkSize));
}