/**
* Validates that the meta data is valid against the server meta data if we haven't yet done so.
* Otherwise, for every UPSERT VALUES call, we'd need to hit the server to see if the meta data
* has changed.
*
* @param connection
* @return the server time to use for the upsert
* @throws SQLException if the table or any columns no longer exist
*/
private long[] validate() throws SQLException {
int i = 0;
Long scn = connection.getSCN();
PName tenantId = connection.getTenantId();
MetaDataClient client = new MetaDataClient(connection);
long[] timeStamps = new long[this.mutations.size()];
for (Map.Entry<TableRef, Map<ImmutableBytesPtr, Map<PColumn, byte[]>>> entry :
mutations.entrySet()) {
TableRef tableRef = entry.getKey();
long serverTimeStamp = tableRef.getTimeStamp();
PTable table = tableRef.getTable();
// If we're auto committing, we've already validated the schema when we got the
// ColumnResolver,
// so no need to do it again here.
if (!connection.getAutoCommit()) {
MetaDataMutationResult result =
client.updateCache(table.getSchemaName().getString(), table.getTableName().getString());
long timestamp = result.getMutationTime();
if (timestamp != QueryConstants.UNSET_TIMESTAMP) {
serverTimeStamp = timestamp;
if (result.wasUpdated()) {
// TODO: use bitset?
table =
connection
.getMetaDataCache()
.getTable(new PTableKey(tenantId, table.getName().getString()));
PColumn[] columns = new PColumn[table.getColumns().size()];
for (Map.Entry<ImmutableBytesPtr, Map<PColumn, byte[]>> rowEntry :
entry.getValue().entrySet()) {
Map<PColumn, byte[]> valueEntry = rowEntry.getValue();
if (valueEntry != PRow.DELETE_MARKER) {
for (PColumn column : valueEntry.keySet()) {
columns[column.getPosition()] = column;
}
}
}
for (PColumn column : columns) {
if (column != null) {
table
.getColumnFamily(column.getFamilyName().getString())
.getColumn(column.getName().getString());
}
}
tableRef.setTable(table);
}
}
}
timeStamps[i++] =
scn == null
? serverTimeStamp == QueryConstants.UNSET_TIMESTAMP
? HConstants.LATEST_TIMESTAMP
: serverTimeStamp
: scn;
}
return timeStamps;
}
