org.apache.calcite.util

Class Sources.FileSource

java.lang.Object

org.apache.calcite.util.Sources.FileSource

All Implemented Interfaces:

Source

Enclosing class:

Sources

private static class Sources.FileSource
extends Object
implements Source

Implementation of Source.

Field Summary

Fields

Modifier and Type	Field and Description
private File	file
private URL	url

Constructor Summary

Constructors

Modifier	Constructor and Description
private	FileSource(File file)
private	FileSource(URL url)

Method Summary

Modifier and Type	Method and Description
Source	append(Source child) Returns a source whose path concatenates this with a child.
File	file()
InputStream	openStream()
String	path()
String	protocol()
Reader	reader()
Source	relative(Source parent) Returns a relative source, if this source is a child of a given base.
String	toString()
Source	trim(String suffix) Looks for a suffix on a path and returns either the path with the suffix removed or the original path.
Source	trimOrNull(String suffix) Looks for a suffix on a path and returns either the path with the suffix removed or null.
URL	url()

Methods inherited from class java.lang.Object

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

Field Detail

file

private final File file

url

private final URL url

Constructor Detail

FileSource

private FileSource(URL url)

FileSource

private FileSource(File file)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

url

public URL url()

Specified by:

url in interface Source

file

public File file()

Specified by:

file in interface Source

protocol

public String protocol()

Specified by:

protocol in interface Source

path

public String path()

Specified by:

path in interface Source

reader

public Reader reader()
              throws IOException

Specified by:

reader in interface Source

Throws:

IOException

openStream

public InputStream openStream()
                       throws IOException

Specified by:

openStream in interface Source

Throws:

IOException

trim

public Source trim(String suffix)

Description copied from interface: Source

Looks for a suffix on a path and returns either the path with the suffix removed or the original path.

Specified by:

trim in interface Source

trimOrNull

public Source trimOrNull(String suffix)

Description copied from interface: Source

Looks for a suffix on a path and returns either the path with the suffix removed or null.

Specified by:

trimOrNull in interface Source

append

public Source append(Source child)

Description copied from interface: Source

Returns a source whose path concatenates this with a child.

For example,

• source("/foo").append(source("bar")) returns source("/foo/bar")
• source("/foo").append(source("/bar")) returns source("/bar") because "/bar" was already absolute

Specified by:

append in interface Source

relative

public Source relative(Source parent)

Description copied from interface: Source

Returns a relative source, if this source is a child of a given base.

For example,

• source("/foo/bar").relative(source("/foo")) returns source("bar")
• source("/baz/bar").relative(source("/foo")) returns source("/baz/bar")

Specified by:

relative in interface Source