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How to create a Report using Process Definition



This how to will add a new Report using a Process Definition and create a menu entry to invoke it.

The implementation requires development experience with Process Definitions. See the following concept pages for background information:

Bulbgraph.png   This feature is available from 3.0PR15Q2

Example Module

This howto is supported by an example module which includes the simple report described in the examples of this document. The report is named Product Simple Report and prints in PDF a list of Products that can be filtered by Product Category.

The code of the example module can be downloaded from this mercurial repository:

Report Definition in Application Dictionary

Process Definition

Create a new record in Process Definition window. Fields to consider:

UI Pattern
Set Report (Using JR Templates). This value will display the Report Definition tab.
Action Handler
If none is set when the UI Pattern is selected the is set.

The BaseReportActionHandler is the default action handler to use in reports. In case you desire to make some Java validations or include some extra parameters that are not defined in the Process Definition parameters tab it is possible to use a custom Action Handler that extends the BaseReportActionHandler.

Parameter Definition

In the Parameter tab are added all the parameters that are needed to filter the results of the report. Their values are handled by the BaseReportActionHandler and sent to Jasper Reports as parameters. This parameters need to be defined in the JR template with the same name as the column name.

Howto-report-pd-parameterjr2 .png

When the filter parameter is a Selector reference the value is sent as a JSONOBject that includes 2 keys:

In case of Multiple Selectors the JSONObject includes 4 keys:

In the Jasper Template the parameter has to be defined using the class org.codehaus.jettison.json.JSONObject. In the example it is set a Product Category multiple selector. As this parameter is optional it the filter is included in the query using an auxiliary parameter (AUX_Product_category). The auxiliary parameter has a default expression that returns " 1 = 1 " when there is no category selected and the corresponding where clause when some categories are selected:

("".equals($P{M_Product_Category_ID}.getString("strValues"))) ? " 1 = 1 " : " pc.m_product_category_id IN ("+$P{M_Product_Category_ID}.getString("strValues")+")"

This parameter is then included in the query using the "$P!{}" notation to replace it with the parameter value instead of using SQL Parameters.

FROM m_product p
  JOIN m_product_category pc ON p.m_product_category_id = pc.m_product_category_id
WHERE $P!{AUX_Product_category}
  AND p.ad_client_id = $P{Current_Client_ID}

The identifiers can be shown in a Text field with the following Expression:


The BaseReportActionHandler and the ReportingUtils class used to generate the report includes some additional parameters that can be used in the template:

The path where the main template is located. Useful to set the paths of the subreports.
A org.openbravo.client.application.Process object with the Process Definition of the report.
A org.hibernate.Session object with the current hibernate session.
A org.openbravo.dal.core.OBContext with the OBContext that has launched the report.
A java.text.DecimalFormat object with the format to be used on Amounts.
A java.text.DecimalFormat object with the format to be used on Quantities.
JR Base parameter with the date format.
String with the current AD_Client_ID. Useful to filter the SQL of the report.
Comma separated String with the readable organizations of the User/Role executing the report. Useful to filter the SQL of the report.

Depending on the report output some additional parameters are set:

PDF output:

with false value to ensure that there report is break in different pages.

XLS output:

with true value to ensure that there report is not break in different pages and all the results are shown in the same sheet.

In case it is desired to add more parameters that cannot be defined as Parameters of the Process Definition it is possible to use a custom Handler that extends the BaseReportActionHandler and overwrites the addAdditionalParameters method.

It is possible to check all the parameters and values sent to the Jasper Report engine by enabling the DEBUG log level on the class by modifying the log4j.lcf file:

DEBUG - list of parameters available in the jasper report
DEBUG - parameter name: SUBREPORT_DIR value: /home/gorkaion/src/openbravo/pi-reporting-merge/WebContent/web/org.openbravo.platform.features/jasper/
DEBUG - parameter name: Current_Client_ID value: 23C59575B9CF467C9620760EB255B389
DEBUG - parameter name: REPORT_FORMAT_FACTORY value: org.openbravo.erpCommon.utility.JRFormatFactory@14ffa3fc
DEBUG - parameter name: REPORT_VIRTUALIZER value: net.sf.jasperreports.engine.fill.JRSwapFileVirtualizer@1b670029
DEBUG - parameter name: jasper_process value: OBUIAPP_Process(70889433974B409BAC4F9D7BFB211248) (name: Product Simple Report)
DEBUG - parameter name: M_Product_Category_ID value: {"values":["291B401A38354A2C8247DFF0DFBDF4AE","5525FCABFE9545018EE221E8802AA283"],"identifiers":["Bio","Fruit juice"],"strValues":"'291B401A38354A2C8247DFF0DFBDF4AE', '5525FCABFE9545018EE221E8802AA283'","strIdentifiers":"Bio, Fruit juice"}
DEBUG - parameter name: AMOUNTFORMAT value: java.text.DecimalFormat@674dc
DEBUG - parameter name: QUANTITYFORMAT value: java.text.DecimalFormat@674dc
DEBUG - parameter name: Readable_Organizations value: 'E443A31992CB4635AFCAEABE7183CE85','0','DC206C91AA6A4897B44DA897936E0EC3','7BABA5FF80494CAFA54DEBD22EC46F01','BAE22373FEBE4CCCA24517E23F0C8A48','19404EAD144C49A0AF37D54377CF452D','B843C30461EA4501935CB1D125C9C25A','2E60544D37534C0B89E765FE29BC0B43'
DEBUG - parameter name: jasper_obContext value: org.openbravo.dal.core.OBContext@73b91cd
DEBUG - parameter name: jasper_hbSession value: SessionImpl(PersistenceContext[entityKeys=...
DEBUG - parameter name: IS_IGNORE_PAGINATION value: false

Report Definition

In the Report Definition tab are defined the JR Templates of the report. Each Process Definition can only have a Report definition. It is also needed to define at least one template: HTML, PDF or XLS.

The templates need to be stored in the web folder.

Report process definition.png


The result is shown in a new form with all the parameters and the corresponding Export button(s).

PD - Form buttons enabled.png

Once the report is generated a file download is requested in the browser. The form is kept enabled so it is possible to rerun the report with different parameters.

Additional Information

An example of XLS Report defined with a Process Definition can be found here.

An example of a Process Definition Report using the HTML output (displayed in a tab) can be downloaded from this repository.

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