Package org.apache.jasper.tagplugins.jstl

Class Util

java.lang.Object

org.apache.jasper.tagplugins.jstl.Util

public class Util
extends Object

Util contains some often used consts, static methods and embedded class to support the JSTL tag plugin.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Util.ImportResponseWrapper	Wraps responses to allow us to retrieve results as Strings.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_ENCODING

Constructor Summary

Constructors

Constructor	Description
Util()

Method Summary

Modifier and Type	Method	Description
static String	escapeXml(char[] arrayBuffer, int length)
static String	escapeXml(String buffer)	Performs the following substring replacements (to facilitate output to XML/HTML pages): & -> &amp; < -> &lt; > -> &gt; " -> &#034; ' -> &#039; See also OutSupport.writeEscapedXml().
static String	getContentTypeAttribute(String input, String name)	Get the value associated with a content-type attribute.
static int	getScope(String scope)	Converts the given string description of a scope to the corresponding PageContext constant.
static boolean	isAbsoluteUrl(String url)	Returns true if our current URL is absolute, false otherwise.
static String	resolveUrl(String url, String context, PageContext pageContext)	Utility methods taken from org.apache.taglibs.standard.tag.common.core.UrlSupport

Methods inherited from class java.lang.Object

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

Field Details

DEFAULT_ENCODING

public static final String DEFAULT_ENCODING

See Also:

• Constant Field Values

Constructor Details

Util

public Util()

Method Details

getScope

public static int getScope(String scope)

Converts the given string description of a scope to the corresponding PageContext constant. The validity of the given scope has already been checked by the appropriate TLV.

Parameters:

scope - String description of scope

Returns:

PageContext constant corresponding to given scope description taken from org.apache.taglibs.standard.tag.common.core.Util

isAbsoluteUrl

public static boolean isAbsoluteUrl(String url)

Returns true if our current URL is absolute, false otherwise. taken from org.apache.taglibs.standard.tag.common.core.ImportSupport

Parameters:

url - The URL

Returns:

true if the URL is absolute

getContentTypeAttribute

public static String getContentTypeAttribute(String input,
 String name)

Get the value associated with a content-type attribute. Syntax defined in RFC 2045, section 5.1. taken from org.apache.taglibs.standard.tag.common.core.Util

Parameters:

input - The attribute string

name - The attribute name

Returns:

the attribute value

escapeXml

public static String escapeXml(String buffer)

Performs the following substring replacements (to facilitate output to XML/HTML pages): & -> &amp; < -> &lt; > -> &gt; " -> &#034; ' -> &#039; See also OutSupport.writeEscapedXml(). taken from org.apache.taglibs.standard.tag.common.core.Util

Parameters:

buffer - Data to escape

Returns:

escaped data

escapeXml

public static String escapeXml(char[] arrayBuffer,
 int length)

resolveUrl

public static String resolveUrl(String url,
 String context,
 PageContext pageContext)
                         throws JspException

Utility methods taken from org.apache.taglibs.standard.tag.common.core.UrlSupport

Parameters:

url - The URL

context - The context

pageContext - The page context

Returns:

the absolute URL

Throws:

JspException - If the URL doesn't start with '/'