Package lazyj

Class RequestWrapper

java.lang.Object

lazyj.RequestWrapper

public final class RequestWrapper
extends Object

This utility class is adapted for JSP use, offering easy access to the parameters and file uploading.

Since:

Oct 16, 2007 (1.0.2)

Author:

costing

Constructor Summary

Constructors

Constructor	Description
RequestWrapper(javax.servlet.http.HttpServletRequest request)	Initialize the class with a HttpServletRequest

Method Summary

Modifier and Type	Method	Description
String	esc(String sName)	Get the SQL-safe value of this parameter
boolean	getb(String sName, boolean bDefault)	Get the boolean value
String	getCookie(String sName)	Get the value of a specific cookie
double	getd(String sParam)	Get the value of a parameter as a double value.
double	getd(String sParam, double defaultVal)	Get the value of a parameter as a double value.
float	getf(String sParam)	Get the value of a parameter as a float value.
float	getf(String sParam, float defaultVal)	Get the value of a parameter as a float value.
static String	getHTTPDate(Date d)	get the http-style formatted date
int	geti(String sParam)	Get the value of a parameter as an integer value.
int	geti(String sParam, int defaultVal)	Get the value of a parameter as an integer value.
long	getl(String sParam)	Get the value of a parameter as a long value.
long	getl(String sParam, long defaultVal)	Get the value of a parameter as a long value.
String	gets(String sParam)	Get the value of a parameter as a string.
String	gets(String sParam, String sDefault)	Get the value of a parameter as a string
String[]	getValues(String sParam)	Get all the values of a parameter.
com.oreilly.servlet.MultipartRequest	initMultipartRequest(String sTempDir, int iFileSizeLimit)	This method should be called when the servlet expects a file upload from the client.
static void	setCacheTimeout(javax.servlet.http.HttpServletResponse response, int seconds)	Set the caching timeout for some generated content.
static void	setNotCache(javax.servlet.http.HttpServletResponse response)	Make this response uncacheable by the browser / proxies on the way

Methods inherited from class java.lang.Object

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

Constructor Details

RequestWrapper

public RequestWrapper(javax.servlet.http.HttpServletRequest request)

Initialize the class with a HttpServletRequest

Parameters:

request -

Method Details

initMultipartRequest

public com.oreilly.servlet.MultipartRequest initMultipartRequest(String sTempDir,
 int iFileSizeLimit)

This method should be called when the servlet expects a file upload from the client. It will initialize the internal mlRequest object. If the file is too big or there is another problem uploading the file then the method will return false, if everything is ok then it will return true.

Parameters:

sTempDir - temporary folder for the files that are uploaded

iFileSizeLimit - maximum size of a file

Returns:

true if the request is indeed a file upload, the file size is <= iFileSizeLimit and the weather outside is fine

getValues

public String[] getValues(String sParam)

Get all the values of a parameter.

Parameters:

sParam -

Returns:

values array, possibly empty but never null

gets

public String gets(String sParam)

Get the value of a parameter as a string.

Parameters:

sParam - the parameter name

Returns:

the string value of this parameter, never null ("" is returned in the worst case)

gets

public String gets(String sParam,
 String sDefault)

Get the value of a parameter as a string

Parameters:

sParam - parameter name

sDefault - default value to return in case the parameter is not defined or has no value ("")

Returns:

value

geti

public int geti(String sParam,
 int defaultVal)

Get the value of a parameter as an integer value. If there is a parsing error then return the given default value.

Parameters:

sParam - the name of the parameter

defaultVal - default value to return in case of an error

Returns:

parsed value of the parameter, or the defaultValue if parameter is missing or is not an integer value representation

geti

public int geti(String sParam)

Get the value of a parameter as an integer value. If there is a parsing error then the value 0 will be returned.

Parameters:

sParam - name of the parameter

Returns:

parsed value of the request parameter, or 0 if there is any error in parsing, parameter not existing etc

getl

public long getl(String sParam,
 long defaultVal)

Get the value of a parameter as a long value. If there is a parsing error then return the given default value.

Parameters:

sParam - the name of the parameter

defaultVal - default value to return in case of an error

Returns:

parsed value of the parameter, or the defaultValue if parameter is missing or is not a long value representation

getl

public long getl(String sParam)

Get the value of a parameter as a long value. If there is a parsing error then the value 0 will be returned.

Parameters:

sParam - name of the parameter

Returns:

parsed value of the request parameter, or 0 if there is any error in parsing, parameter not existing etc

getf

public float getf(String sParam,
 float defaultVal)

Get the value of a parameter as a float value. If there is a parsing error then return the given default value.

Parameters:

sParam - the name of the parameter

defaultVal - default value to return in case of an error

Returns:

parsed value of the parameter, or the defaultValue if parameter is missing or is not a float value representation

getf

public float getf(String sParam)

Get the value of a parameter as a float value. If there is a parsing error then the value 0 will be returned.

Parameters:

sParam - name of the parameter

Returns:

parsed value of the request parameter, or 0 if there is any error in parsing, parameter not existing etc

getd

public double getd(String sParam,
 double defaultVal)

Get the value of a parameter as a double value. If there is a parsing error then return the given default value.

Parameters:

sParam - the name of the parameter

defaultVal - default value to return in case of an error

Returns:

parsed value of the parameter, or the defaultValue if parameter is missing or is not a double value representation

getd

public double getd(String sParam)

Get the value of a parameter as a double value. If there is a parsing error then the value 0 will be returned.

Parameters:

sParam - name of the parameter

Returns:

parsed value of the request parameter, or 0 if there is any error in parsing, parameter not existing etc

getCookie

public String getCookie(String sName)

Get the value of a specific cookie

Parameters:

sName - the name of the cookie

Returns:

the value of the cookie, or "" if there was an error (cookie not existing ...)

getb

public boolean getb(String sName,
 boolean bDefault)

Get the boolean value

Parameters:

sName - parameter name

bDefault - default value

Returns:

true/false, obviously :)

esc

public String esc(String sName)

Get the SQL-safe value of this parameter

Parameters:

sName - URL parameter name

Returns:

SQL-safe value of the given URL parameter

setNotCache

public static void setNotCache(javax.servlet.http.HttpServletResponse response)

Make this response uncacheable by the browser / proxies on the way

Parameters:

response -

setCacheTimeout

public static void setCacheTimeout(javax.servlet.http.HttpServletResponse response,
 int seconds)

Set the caching timeout for some generated content.

Parameters:

response - the response object

seconds - expiration time, in seconds relative to "now". A strict positive value would enable the caching while a zero or negative one would disable the caching.

getHTTPDate

public static String getHTTPDate(Date d)

get the http-style formatted date

Parameters:

d -

Returns:

http-style formatted date