Examples with ALL_COORDINATORS com.facebook.presto.spi.SystemTable.Distribution.ALL_COORDINATORS used on opensource projects

Example 1 with ALL_COORDINATORS

use of com.facebook.presto.spi.SystemTable.Distribution.ALL_COORDINATORS in project presto by prestodb.

the class SystemSplitManager method getSplits.

@Override
public ConnectorSplitSource getSplits(ConnectorTransactionHandle transactionHandle, ConnectorSession session, ConnectorTableLayoutHandle layout, SplitSchedulingContext splitSchedulingContext) {
    SystemTableLayoutHandle layoutHandle = (SystemTableLayoutHandle) layout;
    SystemTableHandle tableHandle = layoutHandle.getTable();
    TupleDomain<ColumnHandle> constraint = layoutHandle.getConstraint();
    SystemTable systemTable = tables.getSystemTable(session, tableHandle.getSchemaTableName()).orElseThrow(() -> new PrestoException(NOT_FOUND, format("Table %s not found", tableHandle.getSchemaTableName())));
    Distribution tableDistributionMode = systemTable.getDistribution();
    if (tableDistributionMode == SINGLE_COORDINATOR) {
        HostAddress address = nodeManager.getCurrentNode().getHostAndPort();
        ConnectorSplit split = new SystemSplit(tableHandle.getConnectorId(), tableHandle, address, constraint);
        return new FixedSplitSource(ImmutableList.of(split));
    }
    ImmutableList.Builder<ConnectorSplit> splits = ImmutableList.builder();
    ImmutableSet.Builder<InternalNode> nodes = ImmutableSet.builder();
    if (tableDistributionMode == ALL_COORDINATORS) {
        nodes.addAll(nodeManager.getCoordinators());
    } else if (tableDistributionMode == ALL_NODES) {
        nodes.addAll(nodeManager.getNodes(ACTIVE).stream().filter(node -> !node.isResourceManager()).collect(toImmutableSet()));
    }
    Set<InternalNode> nodeSet = nodes.build();
    for (InternalNode node : nodeSet) {
        splits.add(new SystemSplit(tableHandle.getConnectorId(), tableHandle, node.getHostAndPort(), constraint));
    }
    return new FixedSplitSource(splits.build());
}