ucar.httpservices

Class HTTPUtil

java.lang.Object

ucar.httpservices.HTTPUtil

public abstract class HTTPUtil
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.nio.charset.Charset	ASCII
static java.lang.String	DRIVELETTERS
static java.lang.String	LOWERCASE
static java.lang.String	UPPERCASE
static java.nio.charset.Charset	UTF8

Constructor Summary

Constructors

Constructor and Description
HTTPUtil()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	abspath(java.lang.String path) Convert path to add a leading '/'; assumes canonical.
static java.lang.String	canonicalpath(java.lang.String path) Convert path to use '/' consistently and to remove any trailing '/'
static void	canonicalpath(java.lang.StringBuilder s)
static java.lang.String	canonjoin(java.lang.String prefix, java.lang.String suffix) Join two string together to form proper path WITHOUT trailing slash
static java.io.File	fillTempFile(java.lang.String base, java.lang.String content)
static boolean	hasDriveLetter(java.lang.String path)
protected static boolean	hasDriveLetter(java.lang.StringBuilder path)
static boolean	isAbsolutePath(java.lang.String path)
protected static java.util.Map<ucar.httpservices.HTTPSession.Prop,java.lang.Object>	merge(java.util.Map<ucar.httpservices.HTTPSession.Prop,java.lang.Object> globalsettings, java.util.Map<ucar.httpservices.HTTPSession.Prop,java.lang.Object> localsettings)
static java.lang.String	nullify(java.lang.String s) Convert a zero-length string to null
static java.net.URI	parseToURI(java.lang.String u) Convert a uri string to an instance of java.net.URI.
static byte[]	readbinaryfile(java.io.File f)
static byte[]	readbinaryfile(java.io.InputStream stream)
static java.lang.String	readtextfile(java.io.InputStream stream)
static java.lang.String	readtextfile(java.io.Reader rdr)
static java.lang.String	relpath(java.lang.String path) Convert path to remove any leading '/' or drive letter assumes canonical.
static void	writebinaryfile(byte[] content, java.io.File dst)

Methods inherited from class java.lang.Object

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

Field Detail

UTF8

public static final java.nio.charset.Charset UTF8

ASCII

public static final java.nio.charset.Charset ASCII

LOWERCASE

public static final java.lang.String LOWERCASE

See Also:

Constant Field Values

UPPERCASE

public static final java.lang.String UPPERCASE

See Also:

Constant Field Values

DRIVELETTERS

public static final java.lang.String DRIVELETTERS

See Also:

Constant Field Values

Constructor Detail

HTTPUtil

public HTTPUtil()

Method Detail

readbinaryfile

public static byte[] readbinaryfile(java.io.File f)
                             throws java.io.IOException

Throws:

java.io.IOException

readbinaryfile

public static byte[] readbinaryfile(java.io.InputStream stream)
                             throws java.io.IOException

Throws:

java.io.IOException

fillTempFile

public static java.io.File fillTempFile(java.lang.String base,
                                        java.lang.String content)
                                 throws java.io.IOException

Throws:

java.io.IOException

parseToURI

public static java.net.URI parseToURI(java.lang.String u)
                               throws java.net.URISyntaxException

Convert a uri string to an instance of java.net.URI. The critical thing is that this procedure can handle backslash escaped uris as well as %xx escaped uris.

Parameters:

u - the uri to convert

Returns:

The URI corresponding to u.

Throws:

java.net.URISyntaxException

merge

protected static java.util.Map<ucar.httpservices.HTTPSession.Prop,java.lang.Object> merge(java.util.Map<ucar.httpservices.HTTPSession.Prop,java.lang.Object> globalsettings,
                                                                                          java.util.Map<ucar.httpservices.HTTPSession.Prop,java.lang.Object> localsettings)

nullify

public static java.lang.String nullify(java.lang.String s)

Convert a zero-length string to null

Parameters:

s - the string to check for length

Returns:

null if s.length() == 0, s otherwise

canonjoin

public static java.lang.String canonjoin(java.lang.String prefix,
                                         java.lang.String suffix)

Join two string together to form proper path WITHOUT trailing slash

canonicalpath

public static java.lang.String canonicalpath(java.lang.String path)

Convert path to use '/' consistently and to remove any trailing '/'

Parameters:

path - convert this path

Returns:

canonicalized version

canonicalpath

public static void canonicalpath(java.lang.StringBuilder s)

relpath

public static java.lang.String relpath(java.lang.String path)

Convert path to remove any leading '/' or drive letter assumes canonical.

Parameters:

path - convert this path

Returns:

relatived version

hasDriveLetter

public static boolean hasDriveLetter(java.lang.String path)

Parameters:

path - to test

Returns:

true if path appears to start with Windows drive letter

hasDriveLetter

protected static boolean hasDriveLetter(java.lang.StringBuilder path)

isAbsolutePath

public static boolean isAbsolutePath(java.lang.String path)

Parameters:

path - to test

Returns:

true if path is absolute

abspath

public static java.lang.String abspath(java.lang.String path)

Convert path to add a leading '/'; assumes canonical.

Parameters:

path - convert this path

Returns:

absolute version

readtextfile

public static java.lang.String readtextfile(java.io.InputStream stream)
                                     throws java.io.IOException

Throws:

java.io.IOException

readtextfile

public static java.lang.String readtextfile(java.io.Reader rdr)
                                     throws java.io.IOException

Throws:

java.io.IOException

writebinaryfile

public static void writebinaryfile(byte[] content,
                                   java.io.File dst)
                            throws java.io.IOException

Throws:

java.io.IOException