Package edu.indiana.lib.twinpeaks.util

Class HttpTransactionUtils

java.lang.Object

edu.indiana.lib.twinpeaks.util.HttpTransactionUtils

public class HttpTransactionUtils
extends Object

HTTP utilites

Field Summary

Fields

Modifier and Type	Field	Description
static String	DEFAULTCS	Default HTTP character set
static String	FILE	/file/specification
static String	FILEANDPARAMS	/file/specification?
static String	PARAMETERS	?
static String	SERVER	protocol://server

Method Summary

Modifier and Type	Method	Description
static String	formatParameter(String name, String value)	Format one HTTP parameter
static String	formatParameter(String name, String value, String separator, String cs)	Format one HTTP parameter
static String	formatUrl(URL url)	Format a base URL string ( protocol://server[:port] )
static String	formatUrl(URL url, boolean preserveFile)	Format a base URL string ( protocol://server[:port][/file-specification] )
static Map	getAttributesAsMap(javax.servlet.http.HttpServletRequest request)	Set up a simple Map of HTTP request parameters (assumes no duplicate names)
static String	getServer(String url)	Pull the server [and port] from a URL specification
static String	getUrlComponent(String url, String component)	Fetch a component from a URL string
static boolean	isHttpError(int status)	General "did an error occur"?
static boolean	isHttpInfo(int status)	Informational status?
static boolean	isHttpRedirect(int status)	HTTP redirect?
static boolean	isHttpRequestError(int status)	Error in request?
static boolean	isHttpServerError(int status)	Server error?
static boolean	isHttpSuccess(int status)	Success status?
static void	main(String[] args)
static String	urlEncodeFullUrl(String original)	URLEncode parameter names and values
static String	urlEncodeParameters(String original)	URLEncode parameter names and values

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULTCS

public static final String DEFAULTCS

Default HTTP character set

See Also:

Constant Field Values

SERVER

public static final String SERVER

protocol://server

See Also:

Constant Field Values

FILE

public static final String FILE

/file/specification

See Also:

Constant Field Values

PARAMETERS

public static final String PARAMETERS

?parameter1=value1¶meter2=value2

See Also:

Constant Field Values

FILEANDPARAMS

public static final String FILEANDPARAMS

/file/specification?parameter1=value1¶meter2=value2

See Also:

Constant Field Values

Method Detail

formatParameter

public static String formatParameter(String name,
                                     String value)

Format one HTTP parameter

Parameters:

name - Parameter name

value - Parameter value (URLEncoded using default chracter set)

Returns:

Parameter text (ampersand+name=url-encoded-value)

formatParameter

public static String formatParameter(String name,
                                     String value,
                                     String separator,
                                     String cs)

Format one HTTP parameter

Parameters:

name - Parameter name

value - Parameter value (will be URLEncoded)

separator - Character to separate parameters

cs - Character set specification (utf-8, etc)

Returns:

Parameter text (separator+name=url-encoded-value)

isHttpInfo

public static boolean isHttpInfo(int status)

Informational status?

Returns:

true if so

isHttpRedirect

public static boolean isHttpRedirect(int status)

HTTP redirect?

Returns:

true if so

isHttpSuccess

public static boolean isHttpSuccess(int status)

Success status?

Returns:

true if so

isHttpRequestError

public static boolean isHttpRequestError(int status)

Error in request?

Returns:

true if so

isHttpServerError

public static boolean isHttpServerError(int status)

Server error?

Returns:

true if so

isHttpError

public static boolean isHttpError(int status)

General "did an error occur"?

Returns:

true if so

getAttributesAsMap

public static Map getAttributesAsMap(javax.servlet.http.HttpServletRequest request)

Set up a simple Map of HTTP request parameters (assumes no duplicate names)

Parameters:

request - HttpServletRequest object

Returns:

Map of name=value pairs

formatUrl

public static String formatUrl(URL url)
                        throws MalformedURLException

Format a base URL string ( protocol://server[:port] )

Parameters:

url - URL to format

Returns:

URL string

Throws:

MalformedURLException

formatUrl

public static String formatUrl(URL url,
                               boolean preserveFile)
                        throws MalformedURLException

Format a base URL string ( protocol://server[:port][/file-specification] )

Parameters:

url - URL to format

preserveFile - Keep the /directory/filename portion of the URL?

Returns:

URL string

Throws:

MalformedURLException

getServer

public static String getServer(String url)

Pull the server [and port] from a URL specification

Parameters:

url - URL string

Returns:

server[:port]

getUrlComponent

public static String getUrlComponent(String url,
                                     String component)
                              throws MalformedURLException

Fetch a component from a URL string

Parameters:

url - URL String

component - name (one of server, file, parameters, fileandparameters)

Returns:

URL component string (null if none)

Throws:

MalformedURLException

urlEncodeFullUrl

public static String urlEncodeFullUrl(String original)

URLEncode parameter names and values

Parameters:

original - Full URL specification (http://example.com/xxx?a=b&c=d)

Returns:

Original URL with (possibly) encoded parameters

urlEncodeParameters

public static String urlEncodeParameters(String original)

URLEncode parameter names and values

Parameters:

original - Original parameter list (?a=b&c=d)

Returns:

Possibly encoded parameter list

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception