Package ucar.httpservices

Class HTTPUtil

java.lang.Object

ucar.httpservices.HTTPUtil

public abstract class HTTPUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static Charset	ASCII
static String	DRIVELETTERS
static String	LOWERCASE
static String	UPPERCASE
static Charset	UTF8

Constructor Summary

Constructors

Constructor	Description
HTTPUtil()

Method Summary

Modifier and Type	Method	Description
static String	abspath(String path)	Convert path to add a leading '/'; assumes canonical.
static String	canonicalpath(String path)	Convert path to use '/' consistently and to remove any trailing '/'
static void	canonicalpath(StringBuilder s)
static String	canonjoin(String prefix, String suffix)	Join two string together to form proper path WITHOUT trailing slash
static File	fillTempFile(String base, String content)
static boolean	hasDriveLetter(String path)
protected static boolean	hasDriveLetter(StringBuilder path)
static boolean	isAbsolutePath(String path)
protected static Map<ucar.httpservices.HTTPSession.Prop,Object>	merge(Map<ucar.httpservices.HTTPSession.Prop,Object> globalsettings, Map<ucar.httpservices.HTTPSession.Prop,Object> localsettings)
static String	nullify(String s)	Convert a zero-length string to null
static URI	parseToURI(String u)	Convert a uri string to an instance of java.net.URI.
static byte[]	readbinaryfile(File f)
static byte[]	readbinaryfile(InputStream stream)
static String	readtextfile(InputStream stream)
static String	readtextfile(Reader rdr)
static String	relpath(String path)	Convert path to remove any leading '/' or drive letter assumes canonical.
static void	writebinaryfile(byte[] content, 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 Charset UTF8

ASCII

public static final Charset ASCII

LOWERCASE

public static final String LOWERCASE

See Also:

Constant Field Values

UPPERCASE

public static final String UPPERCASE

See Also:

Constant Field Values

DRIVELETTERS

public static final String DRIVELETTERS

See Also:

Constant Field Values

Constructor Detail

HTTPUtil

public HTTPUtil()

Method Detail

readbinaryfile

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

Throws:

IOException

readbinaryfile

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

Throws:

IOException

fillTempFile

public static File fillTempFile(String base,
                                String content)
                         throws IOException

Throws:

IOException

parseToURI

public static URI parseToURI(String u)
                      throws 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:

URISyntaxException

merge

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

nullify

public static String nullify(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 String canonjoin(String prefix,
                               String suffix)

Join two string together to form proper path WITHOUT trailing slash

canonicalpath

public static String canonicalpath(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(StringBuilder s)

relpath

public static String relpath(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(String path)

Parameters:

path - to test

Returns:

true if path appears to start with Windows drive letter

hasDriveLetter

protected static boolean hasDriveLetter(StringBuilder path)

isAbsolutePath

public static boolean isAbsolutePath(String path)

Parameters:

path - to test

Returns:

true if path is absolute

abspath

public static String abspath(String path)

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

Parameters:

path - convert this path

Returns:

absolute version

readtextfile

public static String readtextfile(InputStream stream)
                           throws IOException

Throws:

IOException

readtextfile

public static String readtextfile(Reader rdr)
                           throws IOException

Throws:

IOException

writebinaryfile

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

Throws:

IOException