public MutationState(
TableRef table,
Map<ImmutableBytesPtr, Map<PColumn, byte[]>> mutations,
long sizeOffset,
long maxSize,
PhoenixConnection connection) {
this.maxSize = maxSize;
this.connection = connection;
this.mutations.put(table, mutations);
this.sizeOffset = sizeOffset;
this.numRows = mutations.size();
throwIfTooBig();
}
private MutationState(
List<Map.Entry<TableRef, Map<ImmutableBytesPtr, Map<PColumn, byte[]>>>> entries,
long sizeOffset,
long maxSize,
PhoenixConnection connection) {
this.maxSize = maxSize;
this.connection = connection;
this.sizeOffset = sizeOffset;
for (Map.Entry<TableRef, Map<ImmutableBytesPtr, Map<PColumn, byte[]>>> entry : entries) {
numRows += entry.getValue().size();
this.mutations.put(entry.getKey(), entry.getValue());
}
throwIfTooBig();
}
/**
* Combine a newer mutation with this one, where in the event of overlaps, the newer one will take
* precedence.
*
* @param newMutation the newer mutation
*/
public void join(MutationState newMutation) {
if (this == newMutation) { // Doesn't make sense
return;
}
// Merge newMutation with this one, keeping state from newMutation for any overlaps
for (Map.Entry<TableRef, Map<ImmutableBytesPtr, Map<PColumn, byte[]>>> entry :
newMutation.mutations.entrySet()) {
// Replace existing entries for the table with new entries
Map<ImmutableBytesPtr, Map<PColumn, byte[]>> existingRows =
this.mutations.put(entry.getKey(), entry.getValue());
if (existingRows != null) { // Rows for that table already exist
// Loop through new rows and replace existing with new
for (Map.Entry<ImmutableBytesPtr, Map<PColumn, byte[]>> rowEntry :
entry.getValue().entrySet()) {
// Replace existing row with new row
Map<PColumn, byte[]> existingValues =
existingRows.put(rowEntry.getKey(), rowEntry.getValue());
if (existingValues != null) {
if (existingValues != PRow.DELETE_MARKER) {
Map<PColumn, byte[]> newRow = rowEntry.getValue();
// if new row is PRow.DELETE_MARKER, it means delete, and we don't need to merge it
// with existing row.
if (newRow != PRow.DELETE_MARKER) {
// Replace existing column values with new column values
for (Map.Entry<PColumn, byte[]> valueEntry : newRow.entrySet()) {
existingValues.put(valueEntry.getKey(), valueEntry.getValue());
}
// Now that the existing row has been merged with the new row, replace it back
// again (since it was replaced with the new one above).
existingRows.put(rowEntry.getKey(), existingValues);
}
}
} else {
numRows++;
}
}
// Put the existing one back now that it's merged
this.mutations.put(entry.getKey(), existingRows);
} else {
numRows += entry.getValue().size();
}
}
throwIfTooBig();
}
