private short generateWarehouseId() {
short w_id = -1;
// WAREHOUSE AFFINITY
if (config.warehouse_affinity) {
w_id = (short) this.affineWarehouse;
}
// TEMPORAL SKEW
else if (config.temporal_skew) {
if (generator.number(1, 100) <= config.temporal_skew_mix) {
if (config.temporal_skew_rotate) {
w_id =
(short) ((this.tick_counter % parameters.warehouses) + parameters.starting_warehouse);
} else {
w_id = (short) config.first_warehouse;
}
this.temporal_counter++;
} else {
w_id = (short) generator.number(parameters.starting_warehouse, parameters.last_warehouse);
}
}
// ZIPFIAN SKEWED WAREHOUSE ID
else if (config.neworder_skew_warehouse) {
assert (this.zipf != null);
// w_id = (short)this.zipf.nextInt();
w_id = (short) this.custom_skew.nextInt();
}
// GAUSSIAN SKEWED WAREHOUSE ID
else if (skewFactor > 0.0d) {
w_id =
(short)
generator.skewedNumber(
parameters.starting_warehouse, parameters.last_warehouse, skewFactor);
}
// UNIFORM DISTRIBUTION
else {
w_id = (short) generator.number(parameters.starting_warehouse, parameters.last_warehouse);
}
assert (w_id >= parameters.starting_warehouse)
: String.format(
"Invalid W_ID: %d [min=%d, max=%d]",
w_id, parameters.starting_warehouse, parameters.last_warehouse);
assert (w_id <= parameters.last_warehouse)
: String.format(
"Invalid W_ID: %d [min=%d, max=%d]",
w_id, parameters.starting_warehouse, parameters.last_warehouse);
this.lastWarehouseHistory.put(w_id);
this.totalWarehouseHistory.put(w_id);
return w_id;
}
