org.apache.lens.api.util

Class PathValidator

java.lang.Object

org.apache.lens.api.util.PathValidator

public class PathValidator
extends Object

The Path validator utility class takes in the malformatted paths and converts to the appropriate valid path. It also takes in custom properties for special handling of URI's.

Field Summary

Fields

Modifier and Type	Field and Description
static String	PATH_PREFIX

Constructor Summary

Constructors

Constructor and Description
PathValidator(LensConf config)

Method Summary

Modifier and Type	Method and Description
String	getValidPath(File path, boolean shouldBeDirectory, boolean shouldExist) Converts the input path to appropriate File/URI path.
String	removePrefixBeforeURI(String path) The CLI erroneously appends absolute path for URI's.

Methods inherited from class java.lang.Object

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

Field Detail

PATH_PREFIX

public static final String PATH_PREFIX

See Also:

Constant Field Values

Constructor Detail

PathValidator

public PathValidator(LensConf config)

Method Detail

getValidPath

public String getValidPath(File path,
                           boolean shouldBeDirectory,
                           boolean shouldExist)

Converts the input path to appropriate File/URI path. Also removes erroneously appended prefix for URI's. Takes additional properties for special URI handling.

Parameters:

path - input path

shouldBeDirectory - should be a directory

shouldExist - should exist

Returns:

converted path

removePrefixBeforeURI

public String removePrefixBeforeURI(String path)

The CLI erroneously appends absolute path for URI's. It also replaces the double slashes to single slashes. Eg. /home/some/path/file:/home/git/lens/target/tempdata_*.txt This Util method removes the erroneously appended absolute path for URI's. And appends :/// for the URI's. Paths with hdfs/s3/s3n are appended with double slashes :// Any new URI's have to be handled appropriately

Parameters:

path - input path

Returns:

cleaned up path