本文整理了Java中io.prestosql.spi.NodeManager.getAllNodes()
方法的一些代码示例,展示了NodeManager.getAllNodes()
的具体用法。这些代码示例主要来源于Github
/Stackoverflow
/Maven
等平台,是从一些精选项目中提取出来的代码,具有较强的参考意义,能在一定程度帮忙到你。NodeManager.getAllNodes()
方法的具体详情如下:
包路径:io.prestosql.spi.NodeManager
类名称:NodeManager
方法名:getAllNodes
暂无
代码示例来源:origin: prestosql/presto
@Override
public ConnectorSplitSource getSplits(ConnectorTransactionHandle transactionHandle, ConnectorSession session, ConnectorTableLayoutHandle layout, SplitSchedulingStrategy splitSchedulingStrategy)
{
LocalFileTableLayoutHandle layoutHandle = (LocalFileTableLayoutHandle) layout;
LocalFileTableHandle tableHandle = layoutHandle.getTable();
TupleDomain<LocalFileColumnHandle> effectivePredicate = layoutHandle.getConstraint()
.transform(LocalFileColumnHandle.class::cast);
List<ConnectorSplit> splits = nodeManager.getAllNodes().stream()
.map(node -> new LocalFileSplit(node.getHostAndPort(), tableHandle.getSchemaTableName(), effectivePredicate))
.collect(Collectors.toList());
return new FixedSplitSource(splits);
}
}
代码示例来源:origin: prestosql/presto
@Override
public ConnectorSplitSource getSplits(ConnectorTransactionHandle transaction, ConnectorSession session, ConnectorTableLayoutHandle layout, SplitSchedulingStrategy splitSchedulingStrategy)
{
JmxTableLayoutHandle jmxLayout = (JmxTableLayoutHandle) layout;
JmxTableHandle tableHandle = jmxLayout.getTable();
TupleDomain<ColumnHandle> predicate = jmxLayout.getConstraint();
//TODO is there a better way to get the node column?
Optional<JmxColumnHandle> nodeColumnHandle = tableHandle.getColumnHandles().stream()
.filter(jmxColumnHandle -> jmxColumnHandle.getColumnName().equals(NODE_COLUMN_NAME))
.findFirst();
checkState(nodeColumnHandle.isPresent(), "Failed to find %s column", NODE_COLUMN_NAME);
List<ConnectorSplit> splits = nodeManager.getAllNodes().stream()
.filter(node -> {
NullableValue value = NullableValue.of(createUnboundedVarcharType(), utf8Slice(node.getNodeIdentifier()));
return predicate.overlaps(fromFixedValues(ImmutableMap.of(nodeColumnHandle.get(), value)));
})
.map(node -> new JmxSplit(tableHandle, ImmutableList.of(node.getHostAndPort())))
.collect(toList());
return new FixedSplitSource(splits);
}
}
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