Mercurial > dive4elements > river
view flys-artifacts/contrib/visualize-transitions.xsl @ 5779:ebec12def170
Datacage: Add a pool of builders to make it multi threadable.
XML DOM is not thread safe. Therefore the old implementation only allowed one thread
to use the builder at a time. As the complexity of the configuration
has increased over time this has become a bottleneck of the whole application
because it took quiet some time to build a result. Furthermore the builder code path
is visited very frequent. So many concurrent requests were piled up
resulting in long waits for the users.
To mitigate this problem a round robin pool of builders is used now.
Each of the pooled builders has an independent copy of the XML template
and can be run in parallel.
The number of builders is determined by the system property
'flys.datacage.pool.size'. It defaults to 4.
author | Sascha L. Teichmann <teichmann@intevation.de> |
---|---|
date | Sun, 21 Apr 2013 12:48:09 +0200 |
parents | a079f4e26001 |
children |
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<?xml version="1.0" encoding="UTF-8"?> <!-- Copyright (c) 2010 by Intevation GmbH This program is free software under the LGPL (>=v2.1) Read the file LGPL.txt coming with the software for details or visit http://www.gnu.org/licenses/ if it does not exist. Author: Sascha L. Teichmann (sascha.teichmann@intevation.de) --> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.0"> <xsl:output method="text" encoding="UTF-8"/> <xsl:param name="base-dir">.</xsl:param> <xsl:template match="/"> <xsl:text>digraph transition_model {
</xsl:text> <xsl:apply-templates /> <xsl:text>}
</xsl:text> </xsl:template> <xsl:template match="artifact"> <xsl:choose> <xsl:when test="@xlink:href != ''"> <!-- handle external artifacts --> <xsl:variable name="path"> <xsl:call-template name="string-replace-all"> <xsl:with-param name="text" select="@xlink:href" /> <xsl:with-param name="replace">${artifacts.config.dir}</xsl:with-param> <xsl:with-param name="by" select="$base-dir" /> </xsl:call-template> </xsl:variable> <xsl:for-each select="document($path)"> <xsl:apply-templates select="/artifact"/> </xsl:for-each> </xsl:when> <xsl:otherwise> <!-- handle internal artifacts --> <xsl:text>subgraph </xsl:text><xsl:value-of select="@name"/> <xsl:text> {
</xsl:text> <xsl:text> label = "Artefakt: </xsl:text> <xsl:value-of select="@name"/> <xsl:text>";
</xsl:text> <xsl:apply-templates mode="inside-artifact" select="./states/state"/> <xsl:apply-templates mode="inside-artifact" select="./states/transition"/> <xsl:text>}
</xsl:text> </xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template match="state" mode="inside-artifact"> <xsl:text> "</xsl:text> <xsl:value-of select="@id"/> <xsl:text disable-output-escaping="yes" >" [ shape = "record" label=<<table border="0" cellborder="0" cellpadding="3"> <tr><td align="center" colspan="2" bgcolor="black"><font color="white"></xsl:text> <xsl:value-of select="@id"/> <xsl:text disable-output-escaping="yes" ></font></td></tr></xsl:text> <xsl:apply-templates mode="inside-artifact" /> <xsl:text disable-output-escaping="yes" ></table>>]</xsl:text> <xsl:text>;
</xsl:text> </xsl:template> <xsl:template match="data" mode="inside-artifact"> <xsl:text disable-output-escaping="yes" ><tr><td align="right"></xsl:text> <xsl:value-of select="@name"/> <xsl:text disable-output-escaping="yes" ></td><td align="left"></xsl:text> <xsl:value-of select="@type"/> <xsl:text disable-output-escaping="yes" ></td></tr></xsl:text> </xsl:template> <xsl:template match="transition" mode="inside-artifact"> <xsl:text> "</xsl:text> <xsl:value-of select="from/@state"/> <xsl:text disable-output-escaping="yes">" -> "</xsl:text> <xsl:value-of select="to/@state"/> <xsl:text>"</xsl:text> <xsl:apply-templates mode="inside-artifact"/> <xsl:text>;
</xsl:text> </xsl:template> <xsl:template match="condition" mode="inside-artifact"> <xsl:text> [ label="</xsl:text> <xsl:value-of select="@data"/> <xsl:text> </xsl:text> <xsl:call-template name="readable-operator"> <xsl:with-param name="operator" select="@operator"/> </xsl:call-template> <xsl:text> </xsl:text> <xsl:value-of select="@value"/> <xsl:text>" ]</xsl:text> </xsl:template> <xsl:template match="text()" mode="inside-artifact"/> <xsl:template match="text()"/> <xsl:template name="readable-operator"> <xsl:param name="operator" /> <xsl:choose> <xsl:when test='$operator = "equal"'>=</xsl:when> <xsl:when test='$operator = "notequal"'>!=</xsl:when> <xsl:otherwise><xsl:value-of select="$operator"/></xsl:otherwise> </xsl:choose> </xsl:template> <xsl:template name="string-replace-all"> <xsl:param name="text" /> <xsl:param name="replace" /> <xsl:param name="by" /> <xsl:choose> <xsl:when test="contains($text, $replace)"> <xsl:value-of select="substring-before($text,$replace)" /> <xsl:value-of select="$by" /> <xsl:call-template name="string-replace-all"> <xsl:with-param name="text" select="substring-after($text,$replace)" /> <xsl:with-param name="replace" select="$replace" /> <xsl:with-param name="by" select="$by" /> </xsl:call-template> </xsl:when> <xsl:otherwise> <xsl:value-of select="$text" /> </xsl:otherwise> </xsl:choose> </xsl:template> </xsl:stylesheet>