org.apache.flink.table.filesystem

类 PartitionPathUtils

java.lang.Object

org.apache.flink.table.filesystem.PartitionPathUtils

@Internal
public class PartitionPathUtils
extends Object

Utils for file system.

构造器概要

构造器

构造器和说明
PartitionPathUtils()

方法概要

限定符和类型	方法和说明
static LinkedHashMap<String,String>	extractPartitionSpecFromPath(org.apache.flink.core.fs.Path currPath) Make partition spec from path.
static String	generatePartitionPath(LinkedHashMap<String,String> partitionSpec) Make partition path from partition spec.
static org.apache.flink.core.fs.FileStatus[]	listStatusWithoutHidden(org.apache.flink.core.fs.FileSystem fs, org.apache.flink.core.fs.Path dir) List file status without hidden files.
static List<org.apache.flink.api.java.tuple.Tuple2<LinkedHashMap<String,String>,org.apache.flink.core.fs.Path>>	searchPartSpecAndPaths(org.apache.flink.core.fs.FileSystem fs, org.apache.flink.core.fs.Path path, int partitionNumber) Search all partitions in this path.
static String	unescapePathName(String path)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

PartitionPathUtils

public PartitionPathUtils()

方法详细资料

generatePartitionPath

public static String generatePartitionPath(LinkedHashMap<String,String> partitionSpec)

Make partition path from partition spec.

参数:

partitionSpec - The partition spec.

返回:

An escaped, valid partition name.

extractPartitionSpecFromPath

public static LinkedHashMap<String,String> extractPartitionSpecFromPath(org.apache.flink.core.fs.Path currPath)

Make partition spec from path.

参数:

currPath - partition file path.

返回:

Sequential partition specs.

unescapePathName

public static String unescapePathName(String path)

listStatusWithoutHidden

public static org.apache.flink.core.fs.FileStatus[] listStatusWithoutHidden(org.apache.flink.core.fs.FileSystem fs,
                                                                            org.apache.flink.core.fs.Path dir)
                                                                     throws IOException

List file status without hidden files.

抛出:

IOException

searchPartSpecAndPaths

public static List<org.apache.flink.api.java.tuple.Tuple2<LinkedHashMap<String,String>,org.apache.flink.core.fs.Path>> searchPartSpecAndPaths(org.apache.flink.core.fs.FileSystem fs,
                                                                                                                                              org.apache.flink.core.fs.Path path,
                                                                                                                                              int partitionNumber)

Search all partitions in this path.

参数:

path - search path.

partitionNumber - partition number, it will affect path structure.

返回:

all partition specs to its path.