JIRA Google Image Chart Custom Field

trendchart.java

<!-- @@Formula: 
String GenerateChartUrl(String prmRawData, String prmLabelData)
{
    String log = "";

    int recentCount = 20;
    int scaleScope = 4;
    String urlHeader = "https://chart.googleapis.com/chart?";
    String urlCht = "cht=lc";
    String urlChs = "chs=800x320";
    String urlChxt = "chxt=x,y,x";
    String urlChxl = "chxl=2:|";
    String urlChco = "chco=6699FF";
    String urlChm = "chm=s,3399CC,0,0::1,8.0|h,FF0000,0,0.8,1"; //min line : h 0.8
    String urlChl = "chl=";     // x axis value
    String urlChd = "chd=t:";   // y axis value
    String urlChem = "chem=";   // for label
    
    String[] splitRawData = prmRawData.split(";");
    String xValuesConcat = "";
    String yValuesConcat = "";
    String xScaleConcat = "";
    int generationStartIndex = splitRawData.length-recentCount;
    
    if (generationStartIndex < 0)
    {
        generationStartIndex = 0;
    }
    
    String[] dateLookup = new String[splitRawData.length];
    int lookupCounter = 0;
    
    int seq = 0;
    for (int i = generationStartIndex; i < splitRawData.length; i++)
    {
        String[] splitXY = splitRawData[i].split(",");
        dateLookup[lookupCounter++] = splitXY[0];
        xValuesConcat += splitXY[0].substring(4);
        yValuesConcat += splitXY[1];
        
        if (i < splitRawData.length-1)
        {
            xValuesConcat += "|";
            yValuesConcat += ",";
        }
        
        if (seq % scaleScope == 0)
            
        {
            xScaleConcat += splitXY[0];
        }
        
        if (seq < splitRawData.length-generationStartIndex-1)
        {
            xScaleConcat += "|";
        }
        else 
        {
            if ((seq+1) % scaleScope == 0)
            {
                xScaleConcat += splitXY[0]; 
            }
        }
        
        seq++;
    }
    
    // label generation
    String[] splitLabelData = prmLabelData.split(";");
    
    String dateLabel = "";
    int dsValue = -1;
    String txtLabel = "";
    String eachGeneratedLabel = "";
    String totalGeneratedLabel = "";
    String labelTemplate = "y;s=bubble_text_small;d=bbbr,#CONTENTS#,FF8,000;ds=0;dp=";
    
    seq = 0;
    for (int i = 0; i < splitLabelData.length; i++)
    {
        String[] splitDateLabel = splitLabelData[i].split(",");
        try {
            dateLabel = splitDateLabel[0];
            txtLabel = splitDateLabel[1];
        }
        catch (ArrayIndexOutOfBoundsException ex)
        {
            break;
        }
        
        // find label index
        dsValue = -1;
        for (int j = 0; j < dateLookup.length; j++)
        {
            if (dateLookup[j].equals(dateLabel))
            {
                dsValue = j;
            }
            
            log += "j="+j+">>>dateLookup[j]="+dateLookup[j]+">>>dateLabel="+dateLabel+">>>dsValue="+String.valueOf(dsValue);
            if (dsValue > -1)
            {
                break;
            }
        }

        seq++;
        
        // contents escaping
        txtLabel = txtLabel.replaceAll(" ", "+");
        
        eachGeneratedLabel = labelTemplate;
        eachGeneratedLabel = eachGeneratedLabel.replaceAll("#CONTENTS#", txtLabel);
        
        totalGeneratedLabel += eachGeneratedLabel + String.valueOf(dsValue);
        
        if (seq < splitLabelData.length)
        {
            totalGeneratedLabel += "|";
        }
    }
    
    String result = "";
    result += urlHeader;
    result += urlCht + "&";
    result += urlChs + "&";
    result += urlChxt + "&";
    result += urlChxl + xScaleConcat + "&";
    result += urlChco + "&";
    result += urlChm + "&";
    result += urlChl + xValuesConcat + "&";
    result += urlChd + yValuesConcat;
    
    if (totalGeneratedLabel != "")
    {
        result += "&";
        result += urlChem + totalGeneratedLabel;
    }
    
    return result;
}

if (issue.get("customfield_12320")==null)
    return null;

String issueMessage = "";
if (issue.get("customfield_12602")!=null)
{
    issueMessage = String.valueOf(issue.get("customfield_12602"));
}

return String.valueOf(
    "<img style='-webkit-user-select: none' src='"+ 
    GenerateChartUrl(String.valueOf(issue.get("customfield_12320")), issueMessage) +"'>"
    );
-->

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