Quick Start: 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>/Adobe/LiveCycle8/LiveCycle_ES_SDK/client-libs

 * 

 * For complete details about the location of these JAR files, 

 * see "Including LiveCycle ES library files" in Programming with LiveCycle ES

 */

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 ES								

			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();

			 //Get the size of the InputStream object

			 int size = inputStream.available();

			 //Create and populate a byte array	

			 byte[] data = new byte[size];

			inputStream.read(data);

			 //Write the byte stream back to the web browser

			 oOutput.write(data);

			 }

			}

		catch (Exception e) {

			 System.out.println("The following exception occurred: "+e.getMessage());

		}

	}

}

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