Quick Start (EJB mode): Handling a form containing a calculation script using the Java API

The following code example processes a form that contains a calculation script and writes the results back to the client web browser. (See Calculating Form Data.)

/* 
    * This Java Quick Start uses the following JAR files 
    * 1. adobe-forms-client.jar 
    * 2. adobe-livecycle-client.jar 
    * 3. adobe-usermanager-client.jar 
    *  
    *  (Because Forms quick starts are implemented as Java servlets, it is  
    *  not necessary to include J2EE specific JAR files - the Java project 
    *  that contains this quick start is exported as a WAR file which 
    *  is deployed to the J2EE application server) 
    *   
    *  These JAR files are located in the following path: 
    * <install directory>/sdk/client-libs/common 
    *  
    * For complete details about the location of these JAR files,  
    * see "Including LiveCycle library files" in Programming with LiveCycle 
    */ 
import java.io.IOException; 
import javax.servlet.Servlet; 
import javax.servlet.ServletException; 
import javax.servlet.ServletOutputStream; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import com.adobe.livecycle.formsservice.client.*; 
import java.util.*; 
import java.io.InputStream; 
import com.adobe.idp.Document; 
import com.adobe.idp.dsc.clientsdk.ServiceClientFactory; 
import com.adobe.idp.dsc.clientsdk.ServiceClientFactoryProperties; 
 
public class CalculateData extends HttpServlet implements Servlet { 
 
    public void doGet(HttpServletRequest req, HttpServletResponse resp) 
        throws ServletException, IOException { 
            doPost(req,resp); 
    } 
 
     
    public void doPost(HttpServletRequest req, HttpServletResponse resp) 
        throws ServletException, IOException { 
             
        try{ 
            //Set connection properties required to invoke LiveCycle                                 
            Properties connectionProps = new Properties(); 
            connectionProps.setProperty(ServiceClientFactoryProperties.DSC_DEFAULT_EJB_ENDPOINT, "jnp://localhost:1099"); 
            connectionProps.setProperty(ServiceClientFactoryProperties.DSC_TRANSPORT_PROTOCOL,ServiceClientFactoryProperties.DSC_EJB_PROTOCOL);           
            connectionProps.setProperty(ServiceClientFactoryProperties.DSC_SERVER_TYPE, "JBoss"); 
            connectionProps.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_USERNAME, "administrator"); 
            connectionProps.setProperty(ServiceClientFactoryProperties.DSC_CREDENTIAL_PASSWORD, "password"); 
             
            //Create a ServiceClientFactory object 
            ServiceClientFactory myFactory = ServiceClientFactory.createInstance(connectionProps); 
                 
            //Create a FormsServiceClient object 
            FormsServiceClient formsClient = new FormsServiceClient(myFactory);  
         
            //Get form data to pass to the processFormSubmission method 
            Document formData = new Document(req.getInputStream());  
 
            //Set run-time options 
            RenderOptionsSpec processSpec = new RenderOptionsSpec();  
            processSpec.setLocale("en_US"); 
                                   
            //Invoke the processFormSubmission method 
            FormsResult formOut = formsClient.processFormSubmission(formData,"CONTENT_TYPE=application/pdf&CONTENT_TYPE=application/vnd.adobe.xdp+xml","",processSpec); 
             
            //Get the processing state 
            short processState = formOut.getAction(); 
             
            //Determine if the form data is calculated 
            if (processState == 1)  
            { 
                 
                //Write the data back to to the client web browser 
                ServletOutputStream oOutput = resp.getOutputStream(); 
                Document calData = formOut.getOutputContent(); 
                 
                //Create an InputStream object 
                InputStream inputStream = calData.getInputStream(); 
         
                //Write the data stream to the web browser 
                byte[] data = new byte[4096]; 
                int bytesRead = 0; 
                while ((bytesRead = inputStream.read(data)) > 0) 
                { 
                    oOutput.write(data, 0, bytesRead); 
                } 
             } 
            } 
        catch (Exception e) { 
             System.out.println("The following exception occurred: "+e.getMessage()); 
        } 
    } 
}

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