RSS reader

RSS reader
This component is a mess,.,, i know... working with stylesheet is so annoying since there is always one feed structure you have overlooked. In any case... this feed listing works for what we needed to do.

<?xml version='1.0' encoding='UTF-8'?><article xmlns='x-schema:ArticleSchema.xml'><attributes><Name><![CDATA[RSSparser]]></Name><Template><![CDATA[<%--
    RSS Reader; Component
    
    This component takes a URL to a news feed XML structure and displays it as a list in HTML.
    Its originally made just for a specific RSS feed "driftavbrott" but is expanded to cover more formats and fields.

Author: Rasmus Ljungström
--%>

<%@ taglib uri="infoglue-structure" prefix="structure"%>
<%@ taglib uri="infoglue-content" prefix="content"%>
<%@ taglib uri="infoglue-common" prefix="common"%>
<%@ taglib uri="infoglue-page" prefix="page"%>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>

<%-- Getting all the properties these values do different things depending on the feed structure. ToggleDate will toggle the visibility of both publish date and updated. Encoding is only relevant on RSS since we will assume newer formats are in UTF --%>
<structure:componentPropertyValue id="feedUrl" propertyName="FeedUrl"
	useStructureInheritance="false" useInheritance="false"
	useRepositoryInheritance="false" />
<structure:componentPropertyValue id="feedType" propertyName="FeedType"
	useStructureInheritance="false" useInheritance="false"
	useRepositoryInheritance="false" />
<structure:componentPropertyValue id="numberFeed"
	propertyName="NumberFeed" useStructureInheritance="false"
	useInheritance="false" useRepositoryInheritance="false" />
<structure:componentPropertyValue id="feedEncoding"
	propertyName="FeedEncoding" useStructureInheritance="false"
	useInheritance="false" useRepositoryInheritance="false" />
<structure:componentPropertyValue id="toggleAlert"
	propertyName="ToggleAlert" useStructureInheritance="false"
	useInheritance="false" useRepositoryInheritance="false" />
<structure:componentPropertyValue id="toggleDesc"
	propertyName="ToggleDesc" useStructureInheritance="false"
	useInheritance="false" useRepositoryInheritance="false" />
<structure:componentPropertyValue id="toggleTitle"
	propertyName="ToggleTitle" useStructureInheritance="false"
	useInheritance="false" useRepositoryInheritance="false" />
<structure:componentPropertyValue id="feedType" propertyName="FeedType"
	useStructureInheritance="false" useInheritance="false"
	useRepositoryInheritance="false" />
<structure:componentPropertyValue id="toggleDate"
	propertyName="ToggleDate" useStructureInheritance="false"
	useInheritance="false" useRepositoryInheritance="false" />

<%-- I will just put all the labels in the component right away instead of at point of use. --%>
<structure:componentLabel id="publishedDateLabel"
	mapKeyName="PublishedDateLabel" />
<structure:componentLabel id="changedDateLabel"
	mapKeyName="ChangedDateLabel" />
<structure:componentLabel id="allMessages" mapKeyName="AllMessagesLabel" />

<%-- This will just be a formatter to make sure the encoding is in the right order. --%>
<common:import id="resultRSS" url="${feedUrl}"
	charEncoding="${feedEncoding}" timeout="5000">
	<common:parameter name="format" value="marcxml" />
	<common:parameter name="format_level" value="full" />
</common:import>

<%-- RSS feed format, this is a style parser to match RSS feed format.--%>
<c:choose>
	<c:when test="${feedType == '1'}">

<c:set var="style">
			<?xml version="1.0" encoding="ISO-8859-1"?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
				xmlns:dc="http://purl.org/dc/elements/1.1/" version="1.0">
				<xsl:template match="//rss">

<c:out value='${allMessages}' />

</xsl:element></p>
					<xsl:for-each select="/rss/channel/item">
						<xsl:choose>
							<xsl:when test="<c:out value='${numberFeed}' />=0">
								<h2><xsl:value-of select="title" /></h2>

<c:if test="${toggleDate == 'true'}">
									<p class="styleDate"><xsl:value-of select="pubDate" /></p>
								</c:if>
								<c:if test="${toggleTitle == 'false'}">
									<p><xsl:value-of select="description"
										disable-output-escaping="yes" /></p>
								</c:if>
							</xsl:when>
							<xsl:otherwise>
								<xsl:if test="position() < <c:out value='${numberFeed}+1' />">
									<h2><xsl:value-of select="title" /></h2>

<c:if test="${toggleDate == 'true'}">
										<p class="styleDate"><xsl:value-of select="pubDate" /></p>
									</c:if>
									<c:if test="${toggleTitle == 'false'}">
										<p><xsl:value-of select="description"
											disable-output-escaping="yes" /></p>

</c:if>
								</xsl:if>

</xsl:otherwise>
						</xsl:choose>
						<%-- om man vill ha en "mer" funktion <p>
    <xsl:element name="a">
      	<xsl:attribute name="href">
        	<xsl:value-of select="link"/>
      	</xsl:attribute>
      	Mer...
    </xsl:element>
    </p>
   --%>

</xsl:for-each>

</xsl:template>
			</xsl:stylesheet>

</c:set>

</c:when>

<%-- ATOM feed style. This code parse the feed --%>
	<c:when test="${feedType == '2'}">
		<c:set var="style">
			<?xml version="1.0" encoding="UTF-8"?>
			<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
				xmlns:atom="http://www.w3.org/2005/Atom"
				xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
				xmlns:rss1="http://purl.org/rss/1.0/"
				xmlns:dc="http://purl.org/dc/elements/1.1/"
				xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
				xmlns:admin="http://webns.net/mvcb/"
				xmlns:content="http://purl.org/rss/1.0/modules/content/"
				xmlns:wfw="http://wellformedweb.org/CommentAPI/" version="1.0">
				<xsl:output method="html" />
				<xsl:template match="/">
					<xsl:element name="h1">
						<h1><xsl:value-of
							select="atom:feed/atom:title|//rss1:title|//title" /></h1>
					</xsl:element>
	<a href="<c:out value='${feedUrl}' />"><c:out value='${allMessages}' /></a>

<xsl:for-each select="atom:feed/atom:entry|//rss1:item|//item">

</xsl:if>

<xsl:if test="atom:updated">
								
									
										<c:out value="${publishedDateLabel}" />
											<xsl:value-of select="atom:updated" />
									
							
							</xsl:if>
							</p>
						</c:if>

<c:if test="${toggleTitle == 'false'}">
							<p>
								<xsl:choose>

<xsl:when test="content:encoded">
										<xsl:value-of select="content:encoded"
											disable-output-escaping="yes" />
									</xsl:when>
									<xsl:when test="atom:content">
										<xsl:copy-of select="atom:content" />
									</xsl:when>
									<xsl:when test="atom:summary[@type='html']">
										<xsl:value-of select="atom:summary"
											disable-output-escaping="yes" />
									</xsl:when>
									<xsl:when test="atom:summary[@type='text']">
										<xsl:value-of select="atom:summary"
											disable-output-escaping="yes" />
									</xsl:when>
									<xsl:otherwise>
										<xsl:value-of select="rss1:description|description"
											disable-output-escaping="yes" />
									</xsl:otherwise>
								</xsl:choose>
								</p>
							</c:if>

</xsl:for-each>

</xsl:template>
			</xsl:stylesheet>

</c:set>
	</c:when>

<%-- This is the stylesheet to read the fields dynamically and have less capability to display graphics etc.. but will be able to read more formats. --%>
	<c:otherwise>
		<c:set var="style">
			<?xml version="1.0" encoding="UTF-8"?>
			<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
				xmlns:rss1="http://purl.org/rss/1.0/"
				xmlns:atom="http://www.w3.org/2005/Atom"
				xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
				xmlns:dc="http://purl.org/dc/elements/1.1/"
				xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
				xmlns:admin="http://webns.net/mvcb/"
				xmlns:content="http://purl.org/rss/1.0/modules/content/"
				xmlns:wfw="http://wellformedweb.org/CommentAPI/" version="1.0">

<xsl:output method="xml" indent="yes" encoding="UTF-8" />

<xsl:template match="/">
					<xsl:element name="h4">

<xsl:apply-templates
							select="//rss1:channel/rss1:title|/atom:feed/atom:title|//channel/title" />
					</xsl:element>
					<xsl:element name="dl">
						<xsl:attribute name="class"></xsl:attribute>
						<xsl:apply-templates select="//rss1:item|//atom:entry|//item" />
					</xsl:element>
				</xsl:template>
				<h1><xsl:template match="//rss1:title|//atom:title|//title">
					<xsl:value-of select="." />
				</xsl:template></h1>
				<xsl:template match="rss1:item|atom:entry|item">
					<xsl:element name="dt">
						<xsl:element name="a">
							<xsl:attribute name="href">
								<xsl:apply-templates
									select="rss1:link|atom:link[@rel='alternate']/@href|link" />
							</xsl:attribute>
							<xsl:apply-templates select="rss1:title|atom:title|title" />
						</xsl:element>
						<xsl:element name="dd">
							<xsl:attribute name="class"></xsl:attribute>
							<xsl:attribute name="id">
								<xsl:text></xsl:text>
								<xsl:number />
							</xsl:attribute>
							<xsl:choose>
								<xsl:when test="rss1:description|atom:summary|description">
									<xsl:apply-templates
										select="rss1:description|atom:summary|description" />
								</xsl:when>
								<xsl:otherwise>
									<xsl:apply-templates select="content:encoded|atom:content"></xsl:apply-templates>
								</xsl:otherwise>
							</xsl:choose>
						</xsl:element>
					</xsl:element>
				</xsl:template>
				<h2><xsl:template match="rss1:title|atom:title|title">
					<xsl:value-of select="." />
				</xsl:template></h2>
				<c:if test="${toggleDesc == 'true'}">
					<xsl:template match="rss1:description|atom:summary|description">
						<xsl:value-of select="." />
					</xsl:template>

<xsl:template match="atom:content">
						<xsl:copy-of select="./*" />
					</xsl:template>

<xsl:template
						match="rss1:link|atom:link[@rel='alternate']/@href|link">
						<xsl:value-of select="." />
					</xsl:template>
				</c:if>

<c:if test="${toggleDate == 'true'}">
					<p><c:out value="${publishedDateLabel}" /></p>
					<xsl:template match="atom:published|dc:date|pubDate">
						<xsl:value-of select="." />
					</xsl:template>
				</c:if>
			</xsl:stylesheet>
		</c:set>
	</c:otherwise>
</c:choose>

<%-- This transform the feed in a way that the specified style choose --%>
<common:XSLTransform id="resultString" xmlString="${resultRSS}"
	styleString="${style}" />

<%-- Sets the final output and sorrounds it with the "alert" div if its set in the property settings  --%>
<div class="<c:out value='${toggleAlert}' />"><c:out
	value="${resultString}" escapeXml="false" /></div>

]]></Template><ComponentProperties><![CDATA[<?xml version='1.0' encoding='UTF-8'?><properties><property name='FeedUrl' displayName='Feed Url' type='textfield' entity='' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' allowedContentTypeDefinitionNames='' description='Skriv in adressen till RSS eller Atom filen.' defaultValue='' allowLanguageVariations='false' WYSIWYGEnabled='false' WYSIWYGToolbar='' dataProvider='' dataProviderParameters='false' autoCreateContent='false' autoCreateContentMethod='' autoCreateContentPath='' customMarkup=''/><property name='FeedEncoding' displayName='Encoding of the feed' type='select' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' description='If åäö looks wrong, try to alter this.' defaultValue='UTF-8' allowLanguageVariations='false' dataProvider='' dataProviderParameters='false' allowMultipleSelections='false'><option name='UTF-8' value='UTF-8'/><option name='ISO-8859-1' value='ISO-8859-1'/></property><property name='NumberFeed' displayName='Number of feeds' type='textfield' entity='' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' allowedContentTypeDefinitionNames='' description='Specify the number of feeds that is going to be shown.' defaultValue='3' allowLanguageVariations='false' WYSIWYGEnabled='false' WYSIWYGToolbar='' dataProvider='' dataProviderParameters='false' autoCreateContent='false' autoCreateContentMethod='' autoCreateContentPath='' customMarkup=''/><property name='ToggleAlert' displayName='Enable alert mode' type='select' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' description='Makes your feed stick out more' defaultValue='feedStyle' allowLanguageVariations='false' dataProvider='' dataProviderParameters='false' allowMultipleSelections='false'><option name='No' value='feedStyle'/><option name='Yes' value='feedStyleAlert'/></property><property name='ToggleDate' displayName='Show date' type='select' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' description='Show the publication date of each message' defaultValue='false' allowLanguageVariations='false' dataProvider='' dataProviderParameters='false' allowMultipleSelections='false'><option name='No' value='false'/><option name='Yes' value='true'/></property><property name='ToggleDesc' displayName='Show Description' type='select' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' description='Show the description tag of the RSS feed' defaultValue='false' allowLanguageVariations='false' dataProvider='' dataProviderParameters='false' allowMultipleSelections='false'><option name='No' value='false'/><option name='Yes' value='true'/></property><property name='ToggleTitle' displayName='Endast visa titel' type='select' multiple='false' assetBinding='false' assetMask='' isPuffContentForPage='false' description='Välj detta om du vill att dina feeds ska endast visa titeln' defaultValue='false' allowLanguageVariations='false' dataProvider='' dataProviderParameters='false' allowMultipleSelections='false'><option name='Nej' value='false'/><option name='Ja' value='true'/></property><property name='FeedType' displayName='Type of the feed' type='select' multiple='' assetBinding='' assetMask='' isPuffContentForPage='' description='Definierar vilken typ strömmen är av.' defaultValue='1' allowLanguageVariations='false' dataProvider='' dataProviderParameters='false' allowMultipleSelections='false'><option name='RSS' value='1'/><option name='Atom' value='2'/></property></properties>]]></ComponentProperties><GroupName><![CDATA[Content Components]]></GroupName><PreTemplate><![CDATA[undefined83]]></PreTemplate><ComponentLabels><![CDATA[AllMessagesLabel_en=All messages...
AllMessagesLabel_sv=Alla meddelanden...

PublishDateLabel_en=Published:
PublishDateLabel_sv=Publicerad:

ChangedDateLabel_en=Changed:
ChangedDateLabel_sv=Ändrad:]]></ComponentLabels><IGAuthorFullName><![CDATA[Rasmus Ljungström]]></IGAuthorFullName><IGAuthorEmail><![CDATA[rasmus.ljungstrom@its.uu.se]]></IGAuthorEmail></attributes></article>