Maze algorithm in Python.

I was so bored during the weekend and I thought, may be I should play around python a little. So I wrote the following code to make a Maze. It uses a backtracking algorithm to make a Maze of any given size. I personally enjoyed writing it.

import copy import random class Cell: def __init__(self): self.u=True self.d=True self.l=True self.r=True def openUp(self): self.u=False def openLeft(self): self.l=False def openRight(self): self.r=False def openDown(self): self.d=False def closeUp(self): self.u=True def closeDown(self): self.d=Fale def closeRight(self): self.r=False def closeLeft(self): self.l=False def isOpen(self): return self.u or self.r or self.d or self.l def getUp(self): return self.u def getRight(self): return self.r def getDown(self): return self.d def getLeft(self): return self.l def __str__(self): return (self.u,self.r,self.d,self.l).__str__() class MazeGenerator: matrix={} visited={} stack=[] def makeMatrix(self,x,y): for i in range(0, x): for j in range(0, y): self.matrix[(i,j)]=Cell() def getCell(self,c): return self.matrix[c] def getNeighbors(self,l): res={} (x,y) = l if ( self.matrix.has_key((x-1,y)) ): res[(x-1,y)] = self.matrix[(x-1,y)] if ( self.matrix.has_key((x,y-1)) ): res[(x,y-1)] = self.matrix[(x,y-1)] if ( self.matrix.has_key((x+1,y)) ): res[(x+1,y)] = self.matrix[(x+1,y)] if ( self.matrix.has_key((x,y+1)) ): res[(x,y+1)] = self.matrix[(x,y+1)] return res def areNeighbors(self,s,d): sn = self.getNeighbors(s) for i in sn: if ( i == d ): return True return False def connectNeightbors(self,s,d): if ( not self.areNeighbors(s,d) ): return src = self.matrix[s] dst = self.matrix[d] (sx,sy) = s (dx,dy) = d if ( sx == dx ): if ( sy < dy ): src.openUp() dst.openDown() else: src.openDown() dst.openUp() if ( sy == dy ): if ( sx < dx ): src.openRight() dst.openLeft() else: src.openLeft() dst.openRight() self.matrix[s] = src self.matrix[d] = dst def getMaze(self): return self.matrix def printMaze(self): for j in range(self.width-1,-1,-1): str="" for i in range(0,self.height): if (self.matrix[(i,j)].getUp()): str += "###" else: str += "# #" print str str = "" for i in range(0,self.height): if (self.matrix[(i,j)].getLeft()): str += "# " else: str += " " if (self.matrix[(i,j)].getRight()): str += "#" else: str += " " print str str="" for i in range(0,self.height): if (self.matrix[(i,j)].getDown()): str += "###" else: str += "# #" print str def isVisited(self,c): if (self.visited.has_key(c)): return True return False def visit(self,c): self.visited[c]=1 def existsUnvisitedCells(self): if (len(self.visited) < len(self.matrix)): return True return False def anyUnvisited(self,l): for i in l: if (not self.isVisited(i)): return True return False def peekRandomUnvisited(self,l): pool = copy.copy(l) for i in l: if (self.isVisited(i)): del pool[i] return random.choice(pool.keys()) def makeMaze(self,c): self.visit(c) while (self.existsUnvisitedCells()): myNeighbors = self.getNeighbors(c) if (self.anyUnvisited(myNeighbors)): dst = self.peekRandomUnvisited(myNeighbors) self.connectNeightbors(c,dst) self.stack.append(c) self.visit(dst) c=dst elif (len(self.stack) > 0 ): c = self.stack.pop() def __init__(self,w,h,s): self.height=h self.width=w self.makeMatrix(w,h) self.start=s self.makeMaze(s) maze=MazeGenerator(10,10,(0,0)) maze.printMaze()
And the output:

##############################
#       ##                   #
# ## ## ##### ############## #
# ## ## ##### ############## #
# ## ##       ##             #
# ## ########### #############
# ## ########### #############
# ##    ##    ## ##          #
####### ## ##### ##### ##### #
####### ## ##### ##### ##### #
#       ##    ##    ##    ## #
# ######## ## ##### ## ## ####
# ######## ## ##### ## ## ####
#    ## ## ##    ## ## ##    #
#### ## ## ## ##### ##### ## #
#### ## ## ## ##### ##### ## #
#    ## ## ##    ##    ## ## #
# ##### ## ##### ##### ##### #
# ##### ## ##### ##### ##### #
#    ##    ##       ##       #
# ## ##### ## ############## #
# ## ##### ## ############## #
# ##    ## ##          ##    #
# ##### ## ######## ##### ####
# ##### ## ######## ##### ####
#    ## ## ##    ##       ## #
####### ## ##### ########### #
####### ## ##### ########### #
#       ##                   #
##############################

Auto-compile Jasper subreports in OpenNMS

I was trying to make a database report in OpenNMS to collect CPU utilization information from JRobin files.  To use a subreport and make it compile the subreport every time you run the report, I ended up with the following way of presentation of jrxml file. May it be useful to someone. 


<connectionexpression> <![CDATA[$P{REPORT_CONNECTION}]]> </connectionExpression> <subreportexpression class="java.lang.String"><![CDATA[JasperCompileManager.compileReportToFile(new String("/opt/opennms/etc/report-templates/subreports/PeakCPU_subreport.jrxml"))]]> </subreportExpression>
The parent report file:
<?xml version="1.0" encoding="UTF-8"?> <jasperreport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="node-response-time" pageWidth="668" pageHeight="842" whenNoDataType="NoDataSection" columnWidth="628" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20"> <property name="ireport.zoom" value="1.0"/> <property name="ireport.x" value="0"/> <property name="ireport.y" value="0"/> <style name="Report_Title" forecolor="#000000" fontSize="20"/> <style name="Report_Subtitle" forecolor="#000000" vAlign="Middle" fontSize="10" isBold="false" isItalic="true" isUnderline="false" isStrikeThrough="false"/> <style name="Table_Detail" hAlign="Left" vAlign="Middle" fontName="SansSerif" fontSize="10" isBold="false" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="Table_Grid" mode="Transparent" forecolor="#FFFFFF" isBold="false" isItalic="false" isUnderline="false" isStrikeThrough="false"> <pen lineWidth="0.0" lineColor="#FFFFFF"/> <box> <bottompen lineWidth="1.0"/> </box> <conditionalstyle> <conditionexpression><![CDATA[new Boolean($V{style_helper_COUNT}%new Integer("5") == new Integer("0"))]]></conditionExpression> <style mode="Opaque" forecolor="#999999"> <pen lineWidth="1.0" lineColor="#666666"/> <box> <bottompen lineWidth="1.0"/> </box> </style> </conditionalStyle> </style> <style name="Page_Footer" fontSize="10" isBold="false" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="Table_Header" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="Table_Header_BG" mode="Opaque" backcolor="#CCFFCC"/> <style name="Table_Surveillance_Cat" forecolor="#000000" vAlign="Middle" fontSize="10" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="Table_Surveillance_Cat_BG" mode="Opaque" backcolor="#DFDFDF"/> <style name="Table_Surveillance_Cat_Footer_BG" mode="Transparent" backcolor="#FFFFFF"> <pen lineWidth="1.0" lineStyle="Double"/> </style> <style name="Table_Surveillance_Cat_Footer" hAlign="Center" vAlign="Middle" fontSize="10" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"> <box> <bottompen lineWidth="0.0" lineStyle="Double" lineColor="#000000"/> </box> </style> <style name="Table_Surveillance_Cat_Footer_Line" hAlign="Center" vAlign="Middle" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"> <box> <bottompen lineWidth="2.0" lineStyle="Double" lineColor="#000000"/> </box> </style> <style name="Surveillance_Category_Group" mode="Opaque" backcolor="#CCFFCC" hAlign="Left" vAlign="Middle" fontSize="12" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="Node_Group" mode="Opaque" backcolor="#DFDFDF" hAlign="Left" vAlign="Middle" fontSize="10" isBold="false" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="table"> <box> <pen lineWidth="1.0" lineColor="#000000"/> </box> </style> <style name="table_TH" mode="Opaque" backcolor="#F0F8FF"> <box> <toppen lineWidth="0.5" lineColor="#000000"/> <bottompen lineWidth="0.5" lineColor="#000000"/> </box> </style> <style name="table_CH" mode="Opaque" backcolor="#BFE1FF"> <box> <toppen lineWidth="0.5" lineColor="#000000"/> <bottompen lineWidth="0.5" lineColor="#000000"/> </box> </style> <style name="table_TD" mode="Opaque" backcolor="#FFFFFF"> <box> <toppen lineWidth="0.5" lineColor="#000000"/> <bottompen lineWidth="0.5" lineColor="#000000"/> </box> </style> <style name="style1"/> <style name="Interface_Header" hAlign="Center" vAlign="Middle" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <parameter name="COMPANY_LOGO" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA["/opt/opennms/etc/report-templates/opennms-logo.png"]]></defaultValueExpression> </parameter> <parameter name="SURVEILLANCE_CATEGORY" class="java.lang.String"> <defaultvalueexpression><![CDATA["ReportCategory"]]></defaultValueExpression> </parameter> <parameter name="startDate" class="java.util.Date"> <defaultvalueexpression><![CDATA[new java.util.Date( new GregorianCalendar(new GregorianCalendar().get(Calendar.YEAR), new GregorianCalendar().get(Calendar.MONTH), new GregorianCalendar().get(Calendar.DATE) - 7).getTimeInMillis() )]]></defaultValueExpression> </parameter> <parameter name="endDate" class="java.util.Date"> <defaultvalueexpression><![CDATA[new java.util.Date( new GregorianCalendar(new GregorianCalendar().get(Calendar.YEAR), new GregorianCalendar().get(Calendar.MONTH), new GregorianCalendar().get(Calendar.DATE)).getTimeInMillis() )]]></defaultValueExpression> </parameter> <parameter name="rrdDir" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA["/opt/opennms/share/rrd/snmp/"]]></defaultValueExpression> </parameter> <parameter name="SUBREPORT_DIR" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA["/opt/opennms/etc/report-templates/subreports/"]]></defaultValueExpression> </parameter> <querystring> <![CDATA[SELECT categories.categoryname, node.nodelabel, node.nodeid FROM node RIGHT JOIN category_node ON (category_node.nodeid = node.nodeid) JOIN categories ON (categories.categoryid = category_node.categoryid) WHERE (node.nodetype = 'A' AND categories.categoryname = $P{SURVEILLANCE_CATEGORY}) ORDER BY categories.categoryname, node.nodelabel]]> </queryString> <field name="categoryname" class="java.lang.String"/> <field name="nodelabel" class="java.lang.String"/> <field name="nodeid" class="java.lang.Integer"/> <group name="surveillance_category_group"> <groupexpression><![CDATA[$F{categoryname}]]></groupExpression> <groupheader> <band height="24"> <textfield> <reportelement style="Surveillance_Category_Group" x="0" y="0" width="628" height="22"/> <textElement/> <textfieldexpression class="java.lang.String"><![CDATA["Surveillance category: " + $F{categoryname}]]></textFieldExpression> </textField> </band> </groupHeader> <groupfooter> <band/> </groupFooter> </group> <group name="nodelabel_group"> <groupexpression><![CDATA[$F{nodelabel}]]></groupExpression> <groupheader> <band height="59"> <textfield> <reportelement style="Node_Group" x="0" y="0" width="628" height="20"/> <textelement textAlignment="Left"/> <textfieldexpression class="java.lang.String"><![CDATA["Node " + $F{nodelabel}]]></textFieldExpression> </textField> <statictext> <reportelement style="Interface_Header" x="1" y="21" width="99" height="36"/> <textelement textAlignment="Left"/> <text><![CDATA[NodeID]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="100" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Average CPU IDLE]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="200" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Peak CPU IDLE]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="300" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Average CPU Sys]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="400" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Peak CPU SYS]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="500" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Average CPU Nice]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="600" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Peak CPU Nice]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="700" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Average CPU User]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="800" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Peak CPU User]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="900" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[Cpu Usage Avg]]></text> </staticText> <statictext> <reportelement style="Interface_Header" x="1000" y="21" width="99" height="36"/> <textelement textAlignment="Right"/> <text><![CDATA[CPU Usage Peak]]></text> </staticText> </band> </groupHeader> <groupfooter> <band/> </groupFooter> </group> <background> <band splitType="Stretch"/> </background> <title> <band height="4" splitType="Stretch"/> </title> <pageheader> <band height="104" splitType="Stretch"> <statictext> <reportelement style="Report_Title" x="0" y="49" width="555" height="34"/> <textelement verticalAlignment="Middle"> <font size="20" isBold="true"/> </textElement> <text><![CDATA[Average and Peak Traffic Rates]]></text> </staticText> <image> <reportelement x="195" y="0" width="164" height="49"/> <imageexpression class="java.lang.String"><![CDATA[$P{COMPANY_LOGO}]]></imageExpression> </image> <line> <reportelement x="0" y="103" width="626" height="1"/> <graphicelement> <pen lineWidth="1.5"/> </graphicElement> </line> <statictext> <reportelement style="Report_Subtitle" x="2" y="83" width="67" height="15"/> <textElement/> <text><![CDATA[Report begin: ]]></text> </staticText> <textfield evaluationTime="Page"> <reportelement style="Report_Subtitle" x="69" y="83" width="126" height="14"/> <textElement/> <textfieldexpression class="java.util.Date"><![CDATA[$P{startDate}]]></textFieldExpression> </textField> <textfield evaluationTime="Page"> <reportelement style="Report_Subtitle" x="255" y="83" width="131" height="14"/> <textElement/> <textfieldexpression class="java.util.Date"><![CDATA[$P{endDate}]]></textFieldExpression> </textField> <statictext> <reportelement style="Report_Subtitle" x="195" y="83" width="60" height="14"/> <textElement/> <text><![CDATA[Report end: ]]></text> </staticText> </band> </pageHeader> <columnheader> <band height="8" splitType="Stretch"/> </columnHeader> <detail> <band height="29" splitType="Stretch"> <subreport> <reportelement x="0" y="0" width="628" height="26"/> <subreportparameter name="rrdDir"> <subreportparameterexpression><![CDATA[$P{rrdDir}]]></subreportParameterExpression> </subreportParameter> <subreportparameter name="startDate"> <subreportparameterexpression><![CDATA[$P{startDate}]]></subreportParameterExpression> </subreportParameter> <subreportparameter name="nodeid"> <subreportparameterexpression><![CDATA[$F{nodeid}]]></subreportParameterExpression> </subreportParameter> <subreportparameter name="endDate"> <subreportparameterexpression><![CDATA[$P{endDate}]]></subreportParameterExpression> </subreportParameter> <connectionexpression><![CDATA[$P{REPORT_CONNECTION}]]></connectionExpression> <subreportexpression class="java.lang.String"><![CDATA[JasperCompileManager.compileReportToFile(new String("/opt/opennms/etc/report-templates/subreports/PeakCPU_subreport.jrxml"))]]></subreportExpression> </subreport> </band> </detail> <columnfooter> <band splitType="Stretch"/> </columnFooter> <pagefooter> <band height="36" splitType="Stretch"> <line> <reportelement x="0" y="9" width="626" height="1"/> <graphicelement> <pen lineWidth="1.5"/> </graphicElement> </line> <textfield> <reportelement style="Page_Footer" x="521" y="13" width="80" height="20"/> <textelement textAlignment="Right"/> <textfieldexpression class="java.lang.String"><![CDATA["Page "+$V{PAGE_NUMBER}+" of"]]></textFieldExpression> </textField> <textfield evaluationTime="Report"> <reportelement style="Page_Footer" x="601" y="13" width="24" height="20"/> <textElement/> <textfieldexpression class="java.lang.String"><![CDATA[" " + $V{PAGE_NUMBER}]]></textFieldExpression> </textField> <statictext> <reportelement style="Page_Footer" x="0" y="13" width="67" height="15"/> <textElement/> <text><![CDATA[Report begin: ]]></text> </staticText> <statictext> <reportelement style="Page_Footer" x="193" y="13" width="60" height="14"/> <textElement/> <text><![CDATA[Report end: ]]></text> </staticText> <textfield evaluationTime="Page"> <reportelement style="Report_Subtitle" x="67" y="13" width="126" height="14"/> <textElement/> <textfieldexpression class="java.util.Date"><![CDATA[$P{startDate}]]></textFieldExpression> </textField> <textfield evaluationTime="Page"> <reportelement style="Report_Subtitle" x="253" y="13" width="131" height="14"/> <textElement/> <textfieldexpression class="java.util.Date"><![CDATA[$P{endDate}]]></textFieldExpression> </textField> </band> </pageFooter> <summary> <band height="42" splitType="Stretch"/> </summary> <nodata> <band height="50"> <statictext> <reportelement x="237" y="15" width="154" height="20"/> <textElement/> <text><![CDATA[There is no data for this report]]></text> </staticText> </band> </noData> </jasperReport> The subreport file:
/opt/opennms/etc/report-templates/subreports/PeakCPU_subreport.jrxml
<?xml version="1.0" encoding="UTF-8"?> <jasperreport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="TrafficSubReport" pageWidth="650" pageHeight="842" whenNoDataType="NoDataSection" columnWidth="650" leftMargin="0" rightMargin="0" topMargin="0" bottomMargin="0"> <property name="ireport.zoom" value="1.0"/> <property name="ireport.x" value="0"/> <property name="ireport.y" value="0"/> <style name="Node_Group" mode="Opaque" backcolor="#DFDFDF" hAlign="Center" vAlign="Middle" fontSize="10" isBold="false" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <style name="Detail" hAlign="Center" vAlign="Middle"/> <style name="Interface_Header" hAlign="Center" vAlign="Middle" isBold="true" isItalic="false" isUnderline="false" isStrikeThrough="false"/> <parameter name="startDate" class="java.util.Date" isForPrompting="false"> <defaultvalueexpression><![CDATA[new java.util.Date(1291141800000L)]]></defaultValueExpression> </parameter> <parameter name="endDate" class="java.util.Date" isForPrompting="false"> <defaultvalueexpression><![CDATA[new java.util.Date()]]></defaultValueExpression> </parameter> <parameter name="rrdDir" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA["/opt/opennms/share/rrd"]]></defaultValueExpression> </parameter> <parameter name="nodeid" class="java.lang.Integer" isForPrompting="false"> <defaultvalueexpression><![CDATA[Integer.valueOf(14)]]></defaultValueExpression> </parameter> <parameter name="rrdNodeDir" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA[$P{rrdDir}+$P{nodeid}.toString()]]></defaultValueExpression> </parameter> <parameter name="cpuRawIdle_PATH" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA[$P{rrdNodeDir}+"/CpuRawIdle.jrb"]]></defaultValueExpression> </parameter> <parameter name="cpuRawSystem_PATH" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA[$P{rrdNodeDir}+"/CpuRawSystem.jrb"]]></defaultValueExpression> </parameter> <parameter name="cpuRawNice_PATH" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA[$P{rrdNodeDir}+"/CpuRawNice.jrb"]]></defaultValueExpression> </parameter> <parameter name="cpuRawUser_PATH" class="java.lang.String" isForPrompting="false"> <defaultvalueexpression><![CDATA[$P{rrdNodeDir}+"/CpuRawUser.jrb"]]></defaultValueExpression> </parameter> <querystring language="jrobin"> <![CDATA[--start $P{startDate} --end $P{endDate} DEF:aa=$P{cpuRawIdle_PATH}:CpuRawIdle:AVERAGE DEF:bb=$P{cpuRawSystem_PATH}:CpuRawSystem:AVERAGE DEF:cc=$P{cpuRawNice_PATH}:CpuRawNice:AVERAGE DEF:dd=$P{cpuRawUser_PATH}:CpuRawUser:AVERAGE XPORT:aa:cpuRawIdle XPORT:bb:cpuRawSystem XPORT:cc:cpuRawNice XPORT:dd:cpuRawUser]]> </queryString> <field name="Timestamp" class="java.util.Date"> <fielddescription><![CDATA[Timestamp]]></fieldDescription> </field> <field name="cpuRawIdle" class="java.lang.Double"> <fielddescription><![CDATA[cpuRawIdle]]></fieldDescription> </field> <field name="cpuRawSystem" class="java.lang.Double"> <fielddescription><![CDATA[cpuRawSystem]]></fieldDescription> </field> <field name="cpuRawNice" class="java.lang.Double"> <fielddescription><![CDATA[cpuRawNice]]></fieldDescription> </field> <field name="cpuRawUser" class="java.lang.Double"> <fielddescription><![CDATA[cpuRawUser]]></fieldDescription> </field> <variable name="cpuRawIdle_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$F{cpuRawIdle}]]></variableExpression> </variable> <variable name="cpuRawSystem_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$F{cpuRawSystem}]]></variableExpression> </variable> <variable name="cpuRawNice_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$F{cpuRawNice}]]></variableExpression> </variable> <variable name="cpuRawUser_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$F{cpuRawUser}]]></variableExpression> </variable> <variable name="cpuRawIdle_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$F{cpuRawIdle}]]></variableExpression> </variable> <variable name="cpuRawSystem_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$F{cpuRawSystem}]]></variableExpression> </variable> <variable name="cpuRawNice_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$F{cpuRawNice}]]></variableExpression> </variable> <variable name="cpuRawUser_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$F{cpuRawUser}]]></variableExpression> </variable> <variable name="cpuDivisor_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$F{cpuRawUser}+$F{cpuRawNice}+$F{cpuRawSystem}+$F{cpuRawIdle}]]></variableExpression> </variable> <variable name="cpuDivisor_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$F{cpuRawUser}+$F{cpuRawNice}+$F{cpuRawSystem}+$F{cpuRawIdle}]]></variableExpression> </variable> <variable name="cpuNumerator_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$F{cpuRawUser}+$F{cpuRawNice}+$F{cpuRawSystem}]]></variableExpression> </variable> <variable name="cpuNumerator_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$F{cpuRawUser}+$F{cpuRawNice}+$F{cpuRawSystem}]]></variableExpression> </variable> <variable name="cpuUsage_Average" class="java.lang.Double" calculation="Average"> <variableexpression><![CDATA[$V{cpuNumerator_Average}/$V{cpuDivisor_Average}*100]]></variableExpression> </variable> <variable name="cpuUsage_Peak" class="java.lang.Double" calculation="Highest"> <variableexpression><![CDATA[$V{cpuNumerator_Peak}/$V{cpuDivisor_Peak}*100]]></variableExpression> </variable> <filterexpression><![CDATA[!$F{cpuRawIdle}.isNaN() && !$F{cpuRawSystem}.isNaN() && !$F{cpuRawNice}.isNaN() && !$F{cpuRawUser}.isNaN()]]></filterExpression> <background> <band splitType="Stretch"/> </background> <summary> <band height="24" splitType="Stretch"> <textfield> <reportelement style="Detail" x="1" y="4" width="99" height="20"/> <textelement textAlignment="Left"/> <textfieldexpression class="java.lang.String"><![CDATA[$P{nodeid}.toString()]]></textFieldExpression> </textField> <textfield pattern="#,##0.00"> <reportelement style="Detail" x="100" y="4" width="99" height="20"/> <textElement/> <textfieldexpression class="java.lang.Double"><![CDATA[$V{cpuRawIdle_Average}]]></textFieldExpression> </textField> <textfield pattern="#,##0.00"> <reportelement style="Detail" x="200" y="4" width="99" 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