Reusable library for reloading a report

Migrateduser

Attached is a library (and sample report that uses the library) that contains a text item. This text item when included in the beginning of any report will reload the report on an Interval. This interval is a user property in milliseconds. To use this report item just drag the reloadText Text item from the library and set the user property refreshIntervalI (in milliseconds).<br />
<br />
Thanks Pierre Tessier, Pierre Richer, and Jason Weathersby for letting me plagerize their code.<br />
<br />
Below is the relevant code:

//Build a string that contains all the parameters and their values
var paramsString = "";
var paramDefs = reportContext.getDesignHandle().getAllParameters();
for (i = 0; i < paramDefs.size(); i++ ) {
	  var paramDef = paramDefs.get(i);
	  if (paramDef.getClass().toString() == "class org.eclipse.birt.report.model.api.ScalarParameterHandle") {
		    var paramVal = reportContext.getParameterValue(paramDef.getName())		    
		    if (paramVal == null || paramVal == "null") {
				  paramVal = "";
		    } else if (paramVal.length > 0) {
				  var paramValTmp = "";
				  for (j = 0; j < paramVal.length; j++) {
					    if (paramVal[j] != null && paramVal[j] != "null") {
							  if (j > 0)
								    paramValTmp += "|";
							  paramValTmp += encodeURIComponent(paramVal[j]);
					    }
				  }
				  paramVal = paramValTmp;
		    } else {
				  paramVal = encodeURIComponent(paramVal);
		    }							 
		    paramsString += "&" + paramDef.getName() + "=" + paramVal;
	  }
}

//Get the current report name
var reportName = reportContext.getReportRunnable().getReportName();
//Build the URL for re-execution of the report
var targetURL = "executereport.do?__executableName=" + encodeURIComponent(reportName);
targetURL += "&invokeSubmit=true&__wait=wait&__newWindow=false";
targetURL += paramsString;

//Set the refresh interval
var refreshInterval = this.getUserProperty("refreshInterval");

//Build the script to refresh the current report and get the current viewing options
this.content = "<script type='text/javascript'>";
this.content += "function getQueryParam(param) {";
this.content += "var loc = location.href;";
this.content += "var ind = loc.indexOf('&' + param + '=');";
this.content += "if (ind <= 0) ind = loc.indexOf('?' + param + '=');";
this.content += "if (ind > 0) {";
this.content += "var indx = loc.indexOf('&', ind + 1);";
this.content += "if (indx > 0) return '&' + loc.substring(ind + 1, indx);";
this.content += "else return '&' + loc.substring(ind + 1);";
this.content += "}";
this.content += "return ';";
this.content += "}";
this.content += "function refreshReport() {";
this.content += "var url = '" + targetURL + "';";
this.content += "url += getQueryParam('__format');";
this.content += "url += getQueryParam('__svg');";
this.content += "url += getQueryParam('__locale');";
this.content += "location.href = url;";
this.content += "}";
this.content += "timer = setTimeout('refreshReport()', " + refreshInterval + ");";
this.content += "</script>";