de.laures.cewolf.taglib.tags
Class ChartImgTag

java.lang.Object
  javax.servlet.jsp.tagext.TagSupport
      javax.servlet.jsp.tagext.BodyTagSupport
          de.laures.cewolf.taglib.tags.CewolfBodyTag
              de.laures.cewolf.taglib.html.AbstractHTMLBaseTag
                  de.laures.cewolf.taglib.html.HTMLImgTag
                      de.laures.cewolf.taglib.tags.ChartImgTag

All Implemented Interfaces:

javax.servlet.jsp.tagext.BodyTag, CewolfRootTag, javax.servlet.jsp.tagext.IterationTag, Mapped, java.io.Serializable, javax.servlet.jsp.tagext.Tag, TaglibConstants, WebConstants

Direct Known Subclasses:

ChartImgURLTag

public class ChartImgTag

extends HTMLImgTag

implements CewolfRootTag, Mapped, TaglibConstants, WebConstants

This is the tag implementation of the <img> tag. This tag inputs the proper <img> tag into the HTML page delivered to the client. It therefor determines the chart ID which will be used by the rendering servlet to retrieve the chart.

Author:

glaures

See Also:

ChartImage, Serialized Form

Field Summary

protected java.lang.String

sessionKey

Fields inherited from class de.laures.cewolf.taglib.html.HTMLImgTag

align, alt, border, forceSessionId, height, hSpace, ismap, longDesc, removeAfterRender, src, useMap, vSpace, width

Fields inherited from class de.laures.cewolf.taglib.html.AbstractHTMLBaseTag

clazz, dir, id, lang, onclick, ondbclick, onkeydown, onkeypress, onkeyup, onmousedown, onmousemove, onmouseout, onmouseover, onmouseup, style, title, UNDEFINED_FLOAT, UNDEFINED_INT, UNDEFINED_STR

Fields inherited from class de.laures.cewolf.taglib.tags.CewolfBodyTag

log

Fields inherited from class javax.servlet.jsp.tagext.BodyTagSupport

bodyContent

Fields inherited from class javax.servlet.jsp.tagext.TagSupport

pageContext

Fields inherited from interface de.laures.cewolf.taglib.TaglibConstants

ANCHOR_EAST, ANCHOR_NORTH, ANCHOR_SOUTH, ANCHOR_WEST, TOOLTIPS_ENABLED_KEY

Fields inherited from interface de.laures.cewolf.WebConstants

AMPERSAND, HEIGHT_PARAM, IMG_PARAM, MIME_JPEG, MIME_PNG, MIME_SVG, REMOVE_AFTER_RENDERING, SESSIONID_KEY, WIDTH_PARAM

Fields inherited from interface javax.servlet.jsp.tagext.BodyTag

EVAL_BODY_BUFFERED, EVAL_BODY_TAG

Fields inherited from interface javax.servlet.jsp.tagext.IterationTag

EVAL_BODY_AGAIN

Fields inherited from interface javax.servlet.jsp.tagext.Tag

EVAL_BODY_INCLUDE, EVAL_PAGE, SKIP_BODY, SKIP_PAGE

Constructor Summary

ChartImgTag()

Method Summary

static java.lang.String	buildImgURL(java.lang.String renderer, javax.servlet.jsp.PageContext pageContext, java.lang.String sessionKey, int width, int height, java.lang.String mimeType, boolean forceSessionId, boolean removeAfterRender) Build the image url
int	doAfterBody()
int	doEndTag()
int	doStartTag()
void	enableMapping() Method setUsemap.
static java.lang.String	fixAbsolutURL(java.lang.String url, javax.servlet.http.HttpServletRequest request) Fix an absolute url given as attribute by adding the full application url path to it.
static java.lang.String	fixAbsolutURL(java.lang.String url, javax.servlet.jsp.PageContext pageContext) Same as the other fixAbsolutURL, convinience only.
java.lang.String	getChartid()
java.lang.String	getChartId() Method getChartId.
int	getHeight()
protected java.lang.String	getImgURL() To enable further server side scriptings on JSP output the session ID is always encoded into the image URL even if cookies are enabled on the client side.
protected java.lang.String	getMimeType()
protected java.lang.String	getRenderer()
java.lang.Object	getRenderingInfo() Method getImageKey.
protected java.lang.String	getTagName()
int	getTimeout()
int	getWidth()
protected void	reset()
void	setChartid(java.lang.String id)
void	setMime(java.lang.String mimeType) Sets the mimeType.
void	setRenderer(java.lang.String renderer)
void	setTimeout(int timeout)
void	writeAttributes(java.io.Writer wr)

Methods inherited from class de.laures.cewolf.taglib.html.HTMLImgTag

hasBody, isForceSessionId, isRemoveAfterRender, setAlign, setAlt, setBorder, setForceSessionId, setHeight, setHspace, setIsmap, setLongdesc, setRemoveAfterRender, setSrc, setUsemap, setVspace, setWidth, wellFormed

Methods inherited from class de.laures.cewolf.taglib.html.AbstractHTMLBaseTag

appendAttributeDeclaration, appendAttributeDeclaration, appendAttributeDeclaration, setClass, setDir, setHtmltitle, setLang, setOnclick, setOndbclick, setOnkeydown, setOnkeypress, setOnkeyup, setOnmousedown, setOnmousemove, setOnmouseout, setOnmouseover, setOnmouseup, setStyle

Methods inherited from class de.laures.cewolf.taglib.tags.CewolfBodyTag

doAfterEndTag

Methods inherited from class javax.servlet.jsp.tagext.BodyTagSupport

doInitBody, getBodyContent, getPreviousOut, release, setBodyContent

Methods inherited from class javax.servlet.jsp.tagext.TagSupport

findAncestorWithClass, getId, getParent, getValue, getValues, removeValue, setId, setPageContext, setParent, setValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.servlet.jsp.tagext.Tag

getParent, setPageContext, setParent

Field Detail

sessionKey

protected java.lang.String sessionKey

Constructor Detail

ChartImgTag

public ChartImgTag()

Method Detail

doStartTag

public int doStartTag()
               throws javax.servlet.jsp.JspException

Specified by:

doStartTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doStartTag in class AbstractHTMLBaseTag

Throws:

javax.servlet.jsp.JspException

doAfterBody

public int doAfterBody()
                throws javax.servlet.jsp.JspException

Specified by:

doAfterBody in interface javax.servlet.jsp.tagext.IterationTag

Throws:

javax.servlet.jsp.JspException

doEndTag

public int doEndTag()
             throws javax.servlet.jsp.JspException

Specified by:

doEndTag in interface javax.servlet.jsp.tagext.Tag

Overrides:

doEndTag in class AbstractHTMLBaseTag

Throws:

javax.servlet.jsp.JspException

fixAbsolutURL

public static java.lang.String fixAbsolutURL(java.lang.String url,
                                             javax.servlet.http.HttpServletRequest request)

Fix an absolute url given as attribute by adding the full application url path to it. It is considered absolute url (not relative) when it starts with "/"

Parameters:

url - The url to fix

request - The http request

Returns:

Fixed url contains the full path

fixAbsolutURL

public static java.lang.String fixAbsolutURL(java.lang.String url,
                                             javax.servlet.jsp.PageContext pageContext)

Same as the other fixAbsolutURL, convinience only.

Parameters:

url - The url to fix

pageContext - The page context

Returns:

Fixed url contains the full path

buildImgURL

public static java.lang.String buildImgURL(java.lang.String renderer,
                                           javax.servlet.jsp.PageContext pageContext,
                                           java.lang.String sessionKey,
                                           int width,
                                           int height,
                                           java.lang.String mimeType,
                                           boolean forceSessionId,
                                           boolean removeAfterRender)

Build the image url

Parameters:

renderer - the url of the renderer

pageContext - Page context

sessionKey - The session key for the image stored.

width - The width

height - The height

mimeType - the mime-type (for example png) of it

Returns:

The full url

getImgURL

protected java.lang.String getImgURL()

To enable further server side scriptings on JSP output the session ID is always encoded into the image URL even if cookies are enabled on the client side.

getRenderingInfo

public java.lang.Object getRenderingInfo()
                                  throws CewolfException

Description copied from interface: Mapped

Method getImageKey.

Specified by:

getRenderingInfo in interface Mapped

Returns:

int

Throws:

CewolfException

getMimeType

protected java.lang.String getMimeType()

reset

protected void reset()

Overrides:

reset in class HTMLImgTag

enableMapping

public void enableMapping()

Description copied from interface: Mapped

Method setUsemap.

Specified by:

enableMapping in interface Mapped

getChartId

public java.lang.String getChartId()

Description copied from interface: CewolfRootTag

Method getChartId.

Specified by:

getChartId in interface CewolfRootTag

Returns:

String

setChartid

public void setChartid(java.lang.String id)

getChartid

public java.lang.String getChartid()

setRenderer

public void setRenderer(java.lang.String renderer)

getRenderer

protected java.lang.String getRenderer()

getWidth

public int getWidth()

getHeight

public int getHeight()

setMime

public void setMime(java.lang.String mimeType)

Sets the mimeType.

Parameters:

mimeType - The mimeType to set

getTagName

protected java.lang.String getTagName()

Overrides:

getTagName in class HTMLImgTag

See Also:

AbstractHTMLBaseTag.getTagName()

writeAttributes

public void writeAttributes(java.io.Writer wr)

Overrides:

writeAttributes in class HTMLImgTag

See Also:

AbstractHTMLBaseTag.writeAttributes(Writer)

getTimeout

public int getTimeout()

Returns:

Returns the timeout.

setTimeout

public void setTimeout(int timeout)

Parameters:

timeout - The timeout to set.