joshhighley

can you prevent the browser from blocking by using an async xmlhttprequest?

Is there documentation for the applicationContext file used for custom data sources besides the JasperServer Pro Admin Guide? Specifically, I wanted to display a text area instead of a text input for one of the properties of my custom data source. I looked through the jsp source code (WEB-INF/jsp/reportDataSourceFlow/customPropsForm.jsp) and found that if properties textWidth and textHeight were defined, then it would display a text area. The admin guide has a little documention about the applicationContext file and defining the properties for a custom data source, but it has no mention of textWidth or textHeight. Are these properties, and any others, documented (or at least listed) anywhere? <bean id="myDataSource" class="com.jaspersoft.jasperserver.api.engine.jasperreports.util.CustomDataSourceDefinition"> ....etc..... <property name="propertyDefinitions"> <list> <map> <entry key="name" value="lotsOfData"/> <entry key="textWidth" value="40"/> <entry key="textHeight" value="20"/> </map> </list> </property> .....etc...... </bean> Thanks, Josh

I'm using the eval version of the professional edition. I've been referring to the included custom data source examples but can't find anything about JFreeChart under samples

I've saw several posts lately about problems linking to images from reports. I thought I'd share this tip: I created a report that uses a couple of images to indicate the status of some automated services (running or not running) for a dashboard. I didn't want to mess with handling the images separate from the report, so I used this method to embed the images in the jrxml itself: 1) Base64 encode the image. I used the online utility at http://www.motobit.com/util/base64-decoder-encoder.asp Note that I have no ties to this site whatsoever, it's just something I found to be useful and it works. 2) In your report, create a variable of type String and set the variable expression to the Base64 encoded string from step 1 3) Put the image element in your report with class java.io.InputStream I also set scaling to retain shape. 4) For the image expression use: new java.io.StringBufferInputStream( new org.w3c.tools.codec.Base64Decoder($V{MY_IMAGE}).processString() ) The Base64 decoder class is included with JasperServer and is already on the classpath. I tested this successfully with image formats GIF, JPEG, PNG, and BMP. (I ended up using PNG by the way) I think it should also be possible to use class java.awt.Image (BufferedImage) created by ImageIO.load() from a byte array input stream, but this didn't work for me, even though using InputStream directly does. Thanks, Josh

Using the JFreeChart library directly sounds like what I want to do. Where do I find the sample you reference: /demo/samples/jfreechart ? Thanks, Josh

I'd like to create a box and whisker chart. It's supported by the JFreeChart version included with JasperReports and iReport, but it's not offered as a chart option. Is it possible to create a custom chart? ...sort of like creating custom data sources by implementing JRDataSource, only with charts.