Class Util
- java.lang.Object
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- org.apache.jasper.tagplugins.jstl.Util
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public class Util extends java.lang.Object
Util contains some often used consts, static methods and embedded class to support the JSTL tag plugin.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
Util.ImportResponseWrapper
Wraps responses to allow us to retrieve results as Strings.
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Field Summary
Fields Modifier and Type Field Description static java.lang.String
DEFAULT_ENCODING
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Constructor Summary
Constructors Constructor Description Util()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.lang.String
escapeXml(char[] arrayBuffer, int length)
static java.lang.String
escapeXml(java.lang.String buffer)
Performs the following substring replacements (to facilitate output to XML/HTML pages): & -> & < -> < > -> > " -> " ' -> ' See also OutSupport.writeEscapedXml().static java.lang.String
getContentTypeAttribute(java.lang.String input, java.lang.String name)
Get the value associated with a content-type attribute.static int
getScope(java.lang.String scope)
Converts the given string description of a scope to the corresponding PageContext constant.static boolean
isAbsoluteUrl(java.lang.String url)
Returnstrue
if our current URL is absolute,false
otherwise.static java.lang.String
resolveUrl(java.lang.String url, java.lang.String context, PageContext pageContext)
Utility methods taken from org.apache.taglibs.standard.tag.common.core.UrlSupportstatic java.lang.String
stripSession(java.lang.String url)
Strips a servlet session ID fromurl
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Field Detail
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DEFAULT_ENCODING
public static final java.lang.String DEFAULT_ENCODING
- See Also:
- Constant Field Values
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Method Detail
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getScope
public static int getScope(java.lang.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
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isAbsoluteUrl
public static boolean isAbsoluteUrl(java.lang.String url)
Returnstrue
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
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getContentTypeAttribute
public static java.lang.String getContentTypeAttribute(java.lang.String input, java.lang.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 stringname
- The attribute name- Returns:
- the attribute value
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stripSession
public static java.lang.String stripSession(java.lang.String url)
Strips a servlet session ID fromurl
. The session ID is encoded as a URL "path parameter" beginning with "jsessionid=". We thus remove anything we find between ";jsessionid=" (inclusive) and either EOS or a subsequent ';' (exclusive). taken from org.apache.taglibs.standard.tag.common.core.ImportSupport- Parameters:
url
- The URL- Returns:
- the URL without a user submitted session id parameter
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escapeXml
public static java.lang.String escapeXml(java.lang.String buffer)
Performs the following substring replacements (to facilitate output to XML/HTML pages): & -> & < -> < > -> > " -> " ' -> ' See also OutSupport.writeEscapedXml(). taken from org.apache.taglibs.standard.tag.common.core.Util- Parameters:
buffer
- Data to escape- Returns:
- escaped data
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escapeXml
public static java.lang.String escapeXml(char[] arrayBuffer, int length)
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resolveUrl
public static java.lang.String resolveUrl(java.lang.String url, java.lang.String context, PageContext pageContext) throws JspException
Utility methods taken from org.apache.taglibs.standard.tag.common.core.UrlSupport- Parameters:
url
- The URLcontext
- The contextpageContext
- The page context- Returns:
- the absolute URL
- Throws:
JspException
- If the URL doesn't start with '/'
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