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Commit 5ead00a6 authored by Alessio Netti's avatar Alessio Netti

libDCDB: paging for JobDataStore and CaliEvtDataStore queries

parent 70e07df2
......@@ -44,7 +44,7 @@
#define CF_SENSORDATA "sensordata"
#define SENSORDATA_GC_GRACE_SECONDS "600"
#define SENSORDATA_COMPACTION "{'class' : 'TimeWindowCompactionStrategy', 'compaction_window_unit' : 'DAYS', 'compaction_window_size' : 1 }"
#define PAGING_SIZE 50000
#define PAGING_SIZE 10000
#define CONFIG_KEYSPACE_NAME KEYSPACE_NAME "_config"
#define CF_PUBLISHEDSENSORS "publishedsensors"
......
......@@ -222,41 +222,54 @@ void CaliEvtDataStoreImpl::query(std::list<CaliEvtData>& result, SensorId& sid,
cass_future_free(future);
statement = cass_prepared_bind(prepared);
cass_statement_set_paging_size(statement, PAGING_SIZE);
cass_statement_bind_string(statement, 0, sid.getId().c_str());
cass_statement_bind_int16(statement, 1, sid.getRsvd());
cass_statement_bind_int64(statement, 2, start.getRaw());
cass_statement_bind_int64(statement, 3, end.getRaw());
future = cass_session_execute(session, statement);
cass_future_wait(future);
if (cass_future_error_code(future) == CASS_OK) {
const CassResult* cresult = cass_future_get_result(future);
CassIterator* rows = cass_iterator_from_result(cresult);
CaliEvtData entry;
while (cass_iterator_next(rows)) {
const CassRow* row = cass_iterator_get_row(rows);
bool morePages = false;
do {
future = cass_session_execute(session, statement);
cass_future_wait(future);
if (cass_future_error_code(future) == CASS_OK) {
const CassResult* cresult = cass_future_get_result(future);
CassIterator* rows = cass_iterator_from_result(cresult);
CaliEvtData entry;
while (cass_iterator_next(rows)) {
const CassRow* row = cass_iterator_get_row(rows);
cass_int64_t ts;
const char* eventStr;
size_t eventStr_len;
cass_value_get_int64(cass_row_get_column_by_name(row, "ts"), &ts);
cass_value_get_string(cass_row_get_column_by_name(row, "value"), &eventStr, &eventStr_len);
entry.eventId = sid;
entry.timeStamp = (uint64_t)ts;
entry.event = std::string(eventStr, eventStr_len);
result.push_back(entry);
}
cass_int64_t ts;
const char* eventStr;
size_t eventStr_len;
cass_value_get_int64(cass_row_get_column_by_name(row, "ts"), &ts);
cass_value_get_string(cass_row_get_column_by_name(row, "value"), &eventStr, &eventStr_len);
if((morePages = cass_result_has_more_pages(cresult)))
cass_statement_set_paging_state(statement, cresult);
cass_iterator_free(rows);
cass_result_free(cresult);
} else {
morePages = false;
}
entry.eventId = sid;
entry.timeStamp = (uint64_t)ts;
entry.event = std::string(eventStr, eventStr_len);
cass_future_free(future);
result.push_back(entry);
}
cass_iterator_free(rows);
cass_result_free(cresult);
}
while(morePages);
cass_statement_free(statement);
cass_future_free(future);
cass_prepared_free(prepared);
}
......@@ -417,41 +430,54 @@ void CaliEvtDataStoreImpl::queryCB(CaliEvtDataStore::QueryCECbFunc cbFunc, void*
cass_future_free(future);
statement = cass_prepared_bind(prepared);
cass_statement_set_paging_size(statement, PAGING_SIZE);
cass_statement_bind_string(statement, 0, sid.getId().c_str());
cass_statement_bind_int16(statement, 1, sid.getRsvd());
cass_statement_bind_int64(statement, 2, start.getRaw());
cass_statement_bind_int64(statement, 3, end.getRaw());
future = cass_session_execute(session, statement);
cass_future_wait(future);
if (cass_future_error_code(future) == CASS_OK) {
const CassResult* cresult = cass_future_get_result(future);
CassIterator* rows = cass_iterator_from_result(cresult);
CaliEvtData entry;
while (cass_iterator_next(rows)) {
const CassRow* row = cass_iterator_get_row(rows);
bool morePages = false;
do {
future = cass_session_execute(session, statement);
cass_future_wait(future);
if (cass_future_error_code(future) == CASS_OK) {
const CassResult* cresult = cass_future_get_result(future);
CassIterator* rows = cass_iterator_from_result(cresult);
CaliEvtData entry;
while (cass_iterator_next(rows)) {
const CassRow* row = cass_iterator_get_row(rows);
cass_int64_t ts;
const char* eventStr;
size_t eventStr_len;
cass_value_get_int64(cass_row_get_column_by_name(row, "ts"), &ts);
cass_value_get_string(cass_row_get_column_by_name(row, "value"), &eventStr, &eventStr_len);
entry.eventId = sid;
entry.timeStamp = (uint64_t)ts;
entry.event = std::string(eventStr, eventStr_len);
cbFunc(entry, userData);
}
cass_int64_t ts;
const char* eventStr;
size_t eventStr_len;
cass_value_get_int64(cass_row_get_column_by_name(row, "ts"), &ts);
cass_value_get_string(cass_row_get_column_by_name(row, "value"), &eventStr, &eventStr_len);
if((morePages = cass_result_has_more_pages(cresult)))
cass_statement_set_paging_state(statement, cresult);
cass_iterator_free(rows);
cass_result_free(cresult);
} else {
morePages = false;
}
entry.eventId = sid;
entry.timeStamp = (uint64_t)ts;
entry.event = std::string(eventStr, eventStr_len);
cass_future_free(future);
cbFunc(entry, userData);
}
cass_iterator_free(rows);
cass_result_free(cresult);
}
while(morePages);
cass_statement_free(statement);
cass_future_free(future);
cass_prepared_free(prepared);
}
......
This diff is collapsed.
......@@ -628,39 +628,52 @@ void SensorDataStoreImpl::queryCB(SensorDataStore::QueryCbFunc cbFunc, void* use
cass_future_free(future);
statement = cass_prepared_bind(prepared);
cass_statement_set_paging_size(statement, PAGING_SIZE);
cass_statement_bind_string(statement, 0, sid.getId().c_str());
cass_statement_bind_int16(statement, 1, sid.getRsvd());
cass_statement_bind_int64(statement, 2, start.getRaw());
cass_statement_bind_int64(statement, 3, end.getRaw());
future = cass_session_execute(session, statement);
cass_future_wait(future);
if (cass_future_error_code(future) == CASS_OK) {
const CassResult* cresult = cass_future_get_result(future);
CassIterator* rows = cass_iterator_from_result(cresult);
SensorDataStoreReading entry;
while (cass_iterator_next(rows)) {
const CassRow* row = cass_iterator_get_row(rows);
bool morePages = false;
do {
future = cass_session_execute(session, statement);
cass_future_wait(future);
if (cass_future_error_code(future) == CASS_OK) {
const CassResult* cresult = cass_future_get_result(future);
CassIterator* rows = cass_iterator_from_result(cresult);
SensorDataStoreReading entry;
while (cass_iterator_next(rows)) {
const CassRow* row = cass_iterator_get_row(rows);
cass_int64_t ts, value;
cass_value_get_int64(cass_row_get_column_by_name(row, "ts"), &ts);
cass_value_get_int64(cass_row_get_column_by_name(row, "value"), &value);
entry.sensorId = sid;
entry.timeStamp = (uint64_t)ts;
entry.value = (int64_t)value;
cbFunc(entry, userData);
}
cass_int64_t ts, value;
cass_value_get_int64(cass_row_get_column_by_name(row, "ts"), &ts);
cass_value_get_int64(cass_row_get_column_by_name(row, "value"), &value);
if((morePages = cass_result_has_more_pages(cresult)))
cass_statement_set_paging_state(statement, cresult);
cass_iterator_free(rows);
cass_result_free(cresult);
} else {
morePages = false;
}
entry.sensorId = sid;
entry.timeStamp = (uint64_t)ts;
entry.value = (int64_t)value;
cass_future_free(future);
cbFunc(entry, userData);
}
cass_iterator_free(rows);
cass_result_free(cresult);
}
while(morePages);
cass_statement_free(statement);
cass_future_free(future);
cass_prepared_free(prepared);
}
......
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