/** Fills the chart with the content of the list of {@link HeapSegmentElement}. */
private void showChart(ArrayList<HeapSegmentElement> list) {
mAllocCountDataSet.clear();
if (list != null) {
String rowKey = "Alloc Count";
long currentSize = -1;
int currentCount = 0;
for (HeapSegmentElement element : list) {
if (element.getLength() != currentSize) {
if (currentSize != -1) {
ByteLong columnKey = new ByteLong(currentSize);
mAllocCountDataSet.addValue(currentCount, rowKey, columnKey);
}
currentSize = element.getLength();
currentCount = 1;
} else {
currentCount++;
}
}
// add the last item
if (currentSize != -1) {
ByteLong columnKey = new ByteLong(currentSize);
mAllocCountDataSet.addValue(currentCount, rowKey, columnKey);
}
}
}
private void fillDetailedTable(Client client, boolean forceRedraw) {
// first check if the client is invalid or heap updates are not enabled.
if (client == null || client.isHeapUpdateEnabled() == false) {
mStatisticsTable.removeAll();
showChart(null);
return;
}
ClientData cd = client.getClientData();
Map<Integer, ArrayList<HeapSegmentElement>> heapMap;
// Atomically get and clear the heap data.
synchronized (cd) {
if (serializeHeapData(cd.getVmHeapData()) == false && forceRedraw == false) {
// no change, we return.
return;
}
heapMap = cd.getVmHeapData().getProcessedHeapMap();
}
// we have new data, lets display it.
// First, get the current selection, and its key.
int index = mStatisticsTable.getSelectionIndex();
Integer selectedKey = null;
if (index != -1) {
selectedKey = (Integer) mStatisticsTable.getItem(index).getData();
}
// disable redraws and remove all from the table.
mStatisticsTable.setRedraw(false);
mStatisticsTable.removeAll();
if (heapMap != null) {
int selectedIndex = -1;
ArrayList<HeapSegmentElement> selectedList = null;
// get the keys
Set<Integer> keys = heapMap.keySet();
int iter = 0; // use a manual iter int because Set<?> doesn't have an index
// based accessor.
for (Integer key : keys) {
ArrayList<HeapSegmentElement> list = heapMap.get(key);
// check if this is the key that is supposed to be selected
if (key.equals(selectedKey)) {
selectedIndex = iter;
selectedList = list;
}
iter++;
TableItem item = new TableItem(mStatisticsTable, SWT.NONE);
item.setData(key);
// get the type
item.setText(0, mMapLegend[key]);
// set the count, smallest, largest
int count = list.size();
item.setText(1, addCommasToNumber(count));
if (count > 0) {
item.setText(3, prettyByteCount(list.get(0).getLength()));
item.setText(4, prettyByteCount(list.get(count - 1).getLength()));
int median = count / 2;
HeapSegmentElement element = list.get(median);
long size = element.getLength();
item.setText(5, prettyByteCount(size));
long totalSize = 0;
for (int i = 0; i < count; i++) {
element = list.get(i);
size = element.getLength();
totalSize += size;
}
// set the average and total
item.setText(2, prettyByteCount(totalSize));
item.setText(6, prettyByteCount(totalSize / count));
}
}
mStatisticsTable.setRedraw(true);
if (selectedIndex != -1) {
mStatisticsTable.setSelection(selectedIndex);
showChart(selectedList);
} else {
showChart(null);
}
} else {
mStatisticsTable.setRedraw(true);
}
}